{"pageNumber":"959","pageRowStart":"23950","pageSize":"25","recordCount":40807,"records":[{"id":70032950,"text":"70032950 - 2007 - Metal accumulation in the earthworm Lumbricus rubellus. Model predictions compared to field data","interactions":[],"lastModifiedDate":"2012-03-12T17:21:38","indexId":"70032950","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1555,"text":"Environmental Pollution","active":true,"publicationSubtype":{"id":10}},"title":"Metal accumulation in the earthworm Lumbricus rubellus. Model predictions compared to field data","docAbstract":"The mechanistic bioaccumulation model OMEGA (Optimal Modeling for Ecotoxicological Applications) is used to estimate accumulation of zinc (Zn), copper (Cu), cadmium (Cd) and lead (Pb) in the earthworm Lumbricus rubellus. Our validation to field accumulation data shows that the model accurately predicts internal cadmium concentrations. In addition, our results show that internal metal concentrations in the earthworm are less than linearly (slope < 1) related to the total concentration in soil, while risk assessment procedures often assume the biota-soil accumulation factor (BSAF) to be constant. Although predicted internal concentrations of all metals are generally within a factor 5 compared to field data, incorporation of regulation in the model is necessary to improve predictability of the essential metals such as zinc and copper. ?? 2006 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.envpol.2006.06.033","issn":"02697491","usgsCitation":"Veltman, K., Huijbregts, M., Vijver, M., Peijnenburg, W., Hobbelen, P., Koolhaas, J., van Gestel, C., van Vliet, P., and Jan, H.A., 2007, Metal accumulation in the earthworm Lumbricus rubellus. Model predictions compared to field data: Environmental Pollution, v. 146, no. 2, p. 428-436, https://doi.org/10.1016/j.envpol.2006.06.033.","startPage":"428","endPage":"436","numberOfPages":"9","costCenters":[],"links":[{"id":477033,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1016/j.envpol.2006.06.033","text":"External Repository"},{"id":213144,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.envpol.2006.06.033"},{"id":240740,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"146","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a546de4b0c8380cd6cf95","contributors":{"authors":[{"text":"Veltman, K.","contributorId":10227,"corporation":false,"usgs":true,"family":"Veltman","given":"K.","email":"","affiliations":[],"preferred":false,"id":438666,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Huijbregts, M.A.J.","contributorId":58471,"corporation":false,"usgs":true,"family":"Huijbregts","given":"M.A.J.","affiliations":[],"preferred":false,"id":438670,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vijver, M.G.","contributorId":98952,"corporation":false,"usgs":true,"family":"Vijver","given":"M.G.","email":"","affiliations":[],"preferred":false,"id":438674,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Peijnenburg, W.J.G.M.","contributorId":16659,"corporation":false,"usgs":true,"family":"Peijnenburg","given":"W.J.G.M.","email":"","affiliations":[],"preferred":false,"id":438667,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hobbelen, P.H.F.","contributorId":94493,"corporation":false,"usgs":true,"family":"Hobbelen","given":"P.H.F.","affiliations":[],"preferred":false,"id":438673,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Koolhaas, J.E.","contributorId":56439,"corporation":false,"usgs":true,"family":"Koolhaas","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":438669,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"van Gestel, C.A.M.","contributorId":60013,"corporation":false,"usgs":true,"family":"van Gestel","given":"C.A.M.","email":"","affiliations":[],"preferred":false,"id":438671,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"van Vliet, P.C.J.","contributorId":20553,"corporation":false,"usgs":true,"family":"van Vliet","given":"P.C.J.","email":"","affiliations":[],"preferred":false,"id":438668,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Jan, Hendriks A.","contributorId":80904,"corporation":false,"usgs":true,"family":"Jan","given":"Hendriks","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":438672,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70033148,"text":"70033148 - 2007 - Estimating biomass of submersed vegetation using a simple rake sampling technique","interactions":[],"lastModifiedDate":"2012-03-12T17:21:38","indexId":"70033148","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Estimating biomass of submersed vegetation using a simple rake sampling technique","docAbstract":"We evaluated the use of a simple rake sampling technique for predicting the biomass of submersed aquatic vegetation. Vegetation sampled from impounded areas of the Mississippi River using a rake sampling technique, was compared with vegetation harvested from 0.33-m2 quadrats. The resulting data were used to model the relationship between rake indices and vegetation biomass (total and for individual species). We constructed linear regression models using log-transformed biomass data for sites sampled in 1999 and 2000. Data collected in 2001 were used to validate the resulting models. The coefficient of determination (R 2) for predicting total biomass was 0.82 and ranged from 0.59 (Potamogeton pectinatus) to 0.89 (Ceratophyllum demersum) for individual species. Application of the model to estimate total submersed aquatic vegetation is illustrated using data collected independent of this study. The accuracy and precision of the models tested indicate that the rake method data may be used to predict total vegetation biomass and biomass of selected species; however, the method should be tested in other regions, in other plant communities, and on other species. ?? 2006 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrobiologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10750-006-0284-z","issn":"00188158","usgsCitation":"Kenow, K., Lyon, J., Hines, R.K., and Elfessi, A., 2007, Estimating biomass of submersed vegetation using a simple rake sampling technique: Hydrobiologia, v. 575, no. 1, p. 447-454, https://doi.org/10.1007/s10750-006-0284-z.","startPage":"447","endPage":"454","numberOfPages":"8","costCenters":[],"links":[{"id":213530,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10750-006-0284-z"},{"id":241160,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"575","issue":"1","noUsgsAuthors":false,"publicationDate":"2006-09-01","publicationStatus":"PW","scienceBaseUri":"505a0b0ee4b0c8380cd52543","contributors":{"authors":[{"text":"Kenow, K.P.","contributorId":18302,"corporation":false,"usgs":true,"family":"Kenow","given":"K.P.","affiliations":[],"preferred":false,"id":439573,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lyon, J.E.","contributorId":46649,"corporation":false,"usgs":true,"family":"Lyon","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":439576,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hines, R. K.","contributorId":27819,"corporation":false,"usgs":true,"family":"Hines","given":"R.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":439574,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Elfessi, A.","contributorId":46467,"corporation":false,"usgs":true,"family":"Elfessi","given":"A.","affiliations":[],"preferred":false,"id":439575,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031211,"text":"70031211 - 2007 - Potential hazards of environmental contaminants to avifauna residing in the Chesapeake Bay estuary","interactions":[],"lastModifiedDate":"2017-01-03T13:35:04","indexId":"70031211","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3731,"text":"Waterbirds","onlineIssn":"19385390","printIssn":"15244695","active":true,"publicationSubtype":{"id":10}},"title":"Potential hazards of environmental contaminants to avifauna residing in the Chesapeake Bay estuary","docAbstract":"A search of the Contaminant Exposure and Effects-Terrestrial Vertebrates (CEE-TV) database revealed that 70% of the 839 Chesapeake Bay records deal with avian species. Studies conducted on waterbirds in the past 15 years indicate that organochlorine contaminants have declined in eggs and tissues, although p,p'-DDE, total polychlorinated biphenyls (PCBs) and coplanar PCB congeners may still exert sublethal and reproductive effects in some locations. There have been numerous reports of avian die-off events related to organophosphorus and carbamate pesticides. More contemporary contaminants (e.g., alkylphenols, ethoxylates, perfluorinated compounds, polybrominated diphenyl ethers) are detectable in bird eggs in the most industrialized portions of the Bay, but interpretation of these data is difficult because adverse effect levels are incompletely known for birds. Two moderaterized oil spills resulted in the death of several hundred birds, and about 500 smaller spill events occur annually in the watershed. With the exception of lead, concentrations of cadmium, mercury, and selenium in eggs and tissues appear to be below toxic thresholds for waterbirds. Fishing tackle and discarded plastics, that can entangle and kill young and adults, are prevalent in nests in some Bay tributaries. It is apparent that exposure and potential effects of several classes of contaminants (e.g., dioxins, dibenzofurans, rodenticides, pharmaceuticals, personal care products, lead shot, and some metals) have not been systematically examined in the past 15 years, highlighting the need for toxicological evaluation of birds found dead, and perhaps an avian ecotoxicological monitoring program. Although oil spills, spent lead shot, some pesticides, and industrial pollutants occasionally harm Chesapeake avifauna, contaminants no longer evoke the population level effects that were observed in Ospreys (Pandion haliaetus) and Bald Eagles (Haliaeetus leucocephalus) through the 1970s.","language":"English","publisher":"The Waterbird Society","doi":"10.1675/1524-4695(2007)030[0063:PHOECT]2.0.CO;2","issn":"15244695","usgsCitation":"Rattner, B.A., and McGowan, P.C., 2007, Potential hazards of environmental contaminants to avifauna residing in the Chesapeake Bay estuary: Waterbirds, v. 30, no. sp1, p. 63-81, https://doi.org/10.1675/1524-4695(2007)030[0063:PHOECT]2.0.CO;2.","productDescription":"19 p.","startPage":"63","endPage":"81","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":238983,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211655,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/1524-4695(2007)030[0063:PHOECT]2.0.CO;2"}],"volume":"30","issue":"sp1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7f34e4b0c8380cd7a9ae","contributors":{"authors":[{"text":"Rattner, Barnett A. 0000-0003-3676-2843 brattner@usgs.gov","orcid":"https://orcid.org/0000-0003-3676-2843","contributorId":4142,"corporation":false,"usgs":true,"family":"Rattner","given":"Barnett","email":"brattner@usgs.gov","middleInitial":"A.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":430547,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McGowan, Peter C.","contributorId":13867,"corporation":false,"usgs":false,"family":"McGowan","given":"Peter","email":"","middleInitial":"C.","affiliations":[{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false}],"preferred":false,"id":430546,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030101,"text":"70030101 - 2007 - Estimation of evapotranspiration by reed canarygrass using field observations and model simulations","interactions":[],"lastModifiedDate":"2012-03-12T17:21:05","indexId":"70030101","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Estimation of evapotranspiration by reed canarygrass using field observations and model simulations","docAbstract":"Reed canarygrass (Phalaris arundinacea) commonly invades meadow wetlands, effectively dominating water use and outcompeting native plants. Objectives of this study were to (i) estimate daily, seasonal and annual water use by reed canarygrass using shallow water table fluctuations; and (ii) calibrate the ALMANAC (Agricultural Land Management Alternative with Numerical Assessment Criteria) model to accurately simulate water uptake by this grass. Using a groundwater well, the water table under an area in Iowa dominated by reed canarygrass was monitored hourly. Differences between water level measurements taken each hour were averaged to determine the hourly water table change in each month. Using these estimates of water use, the ALMANAC model was then calibrated to simulate plant transpiration values close to these water table use rates. Average monthly calculated daily plant water use rates were 3.3 mm d-1 in July and 2.3-2.8 mm d-1 in May, June, August, and September. Simulated bimonthly values for measured water use and plant transpiration simulated by the ALMANAC model differed by 14% or less. From May to October the mean ratio of measured to simulated values was 94%. Thus, the similarity between simulated plant transpiration and water use from the water table showed promise that this process-based model can realistically simulate water use under such grassland systems. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2007.02.003","issn":"00221694","usgsCitation":"Schilling, K.E., and Kiniry, J.R., 2007, Estimation of evapotranspiration by reed canarygrass using field observations and model simulations: Journal of Hydrology, v. 337, no. 3-4, p. 356-363, https://doi.org/10.1016/j.jhydrol.2007.02.003.","startPage":"356","endPage":"363","numberOfPages":"8","costCenters":[],"links":[{"id":212728,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2007.02.003"},{"id":240260,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"337","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0b87e4b0c8380cd52774","contributors":{"authors":[{"text":"Schilling, K. E.","contributorId":61982,"corporation":false,"usgs":true,"family":"Schilling","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":425717,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kiniry, James R.","contributorId":66918,"corporation":false,"usgs":true,"family":"Kiniry","given":"James","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":425718,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030132,"text":"70030132 - 2007 - An evaluation of petrogenic hydrocarbons in northern Gulf of Alaska continental shelf sediments - The role of coastal oil seep inputs","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70030132","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"An evaluation of petrogenic hydrocarbons in northern Gulf of Alaska continental shelf sediments - The role of coastal oil seep inputs","docAbstract":"We compared hydrocarbons in water, suspended particulate matter (SPM), and riparian sediment collected from coastal watersheds along the Yakataga foreland with corresponding hydrocarbons in Gulf of Alaska benthic sediments. This comparison allows an evaluation of hydrocarbon contributions to marine sediments from natural oil seeps, coal and organic matter (e.g., kerogen) associated with eroding siliciclastic rocks. The samples from oil seeps show extensive loss of low-molecular weight n-alkanes (<n-C14) and the presence of large, bimodal unresolved complex mixtures (UCMs), in contrast to the hydrocarbon fingerprints on the SPM and riparian sediment samples collected upstream from the oil seeps. After entering the fluvial systems, hydrocarbons from seep oils are rapidly diluted, and associate with the SPM phase as oil-mineral-aggregates (OMA). Johnston Creek, the watershed containing the most prolific seep, conveys detectable seep-derived hydrocarbons to the Gulf of Alaska, but overall seep inputs are largely attenuated by the (non-seep) petrogenic hydrocarbon content of the high SPM loads. In contrast to the geochemical signature of seep oil, Gulf of Alaska benthic sediments are characterized by abundant alkylated naphthalene homologues, relatively smooth n-alkane envelopes (n-C9 through n-C34, but with elevated levels of n-C27, n-C29, and n-C31), and small UCMs. Further, hydrocarbons in benthic sediments are highly intercorrelated. Taken together, these characteristics indicate that seep oil is a negligible petrogenic hydrocarbon source to the Gulf of Alaska continental shelf. Coaly material separated from the benthic sediment samples using a dense liquid (???2.00 g cm-3) also accounted for a minor portion of the total PAH (1-6%) and total n-alkanes (0.4-2%) in the benthic samples. Most of the hydrocarbon burden in the sediments is found in the denser sediment fraction and likely derives from organic matter contributed by denudation of siliciclastic formations in the Yakutat terrane. We therefore conclude that previous investigations relying on source allocation models have considerably overestimated oil seeps as a hydrocarbon source to the Gulf of Alaska. ?? 2006 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Organic Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.orggeochem.2006.12.005","issn":"01466380","usgsCitation":"Short, J., Kolak, J., Payne, J.R., and Van Kooten, G.K., 2007, An evaluation of petrogenic hydrocarbons in northern Gulf of Alaska continental shelf sediments - The role of coastal oil seep inputs: Organic Geochemistry, v. 38, no. 4, p. 643-670, https://doi.org/10.1016/j.orggeochem.2006.12.005.","startPage":"643","endPage":"670","numberOfPages":"28","costCenters":[],"links":[{"id":212701,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.orggeochem.2006.12.005"},{"id":240227,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"38","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea4ee4b0c8380cd48788","contributors":{"authors":[{"text":"Short, J.W.","contributorId":65631,"corporation":false,"usgs":true,"family":"Short","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":425841,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kolak, J.J.","contributorId":46246,"corporation":false,"usgs":true,"family":"Kolak","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":425840,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Payne, J. R.","contributorId":43508,"corporation":false,"usgs":true,"family":"Payne","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":425839,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Van Kooten, G. K.","contributorId":41499,"corporation":false,"usgs":true,"family":"Van Kooten","given":"G.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":425838,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030928,"text":"70030928 - 2007 - The case for infrasound as the long-range map cue in avian navigation","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70030928","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The case for infrasound as the long-range map cue in avian navigation","docAbstract":"Of the various 'map' and 'compass' components of Kramer's avian navigational model, the long-range map component is the least well understood. In this paper atmospheric infrasounds are proposed as the elusive longrange cues constituting the avian navigational map. Although infrasounds were considered a viable candidate for the avian map in the 1970s, and pigeons in the laboratory were found to detect sounds at surprisingly low frequencies (0.05 Hz), other tests appeared to support either of the currently favored olfactory or magnetic maps. Neither of these hypotheses, however, is able to explain the full set of observations, and the field has been at an impasse for several decades. To begin, brief descriptions of infrasonic waves and their passage through the atmosphere are given, followed by accounts of previously unexplained release results. These examples include 'release-site biases' which are deviations of departing pigeons from the homeward bearing, an annual variation in homing performance observed only in Europe, difficulties orienting over lakes and above temperature inversions, and the mysterious disruption of several pigeon races. All of these irregularities can be consistently explained by the deflection or masking of infrasonic cues by atmospheric conditions or by other infrasonic sources (microbaroms, sonic booms), respectively. A source of continuous geographic infrasound generated by atmosphere-coupled microseisms is also proposed. In conclusion, several suggestions are made toward resolving some of the conflicting experimental data with the pigeons' possible use of infrasonic cues.","largerWorkTitle":"Proceedings of the Annual Meeting - Institute of Navigation","conferenceTitle":"63rd Annual Meeting of the Institute of Navigation 2007","conferenceDate":"23 April 2007 through 25 April 2007","conferenceLocation":"Cambridge, MA","language":"English","isbn":"1604232862; 9781604232868","usgsCitation":"Hagstrum, J., 2007, The case for infrasound as the long-range map cue in avian navigation, <i>in</i> Proceedings of the Annual Meeting - Institute of Navigation, Cambridge, MA, 23 April 2007 through 25 April 2007, p. 280-293.","startPage":"280","endPage":"293","numberOfPages":"14","costCenters":[],"links":[{"id":238637,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baa07e4b08c986b3226a6","contributors":{"authors":[{"text":"Hagstrum, J.T.","contributorId":75922,"corporation":false,"usgs":true,"family":"Hagstrum","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":429260,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70030982,"text":"70030982 - 2007 - Putting it all together: Exhumation histories from a formal combination of heat flow and a suite of thermochronometers","interactions":[],"lastModifiedDate":"2023-07-28T11:13:35.268476","indexId":"70030982","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Putting it all together: Exhumation histories from a formal combination of heat flow and a suite of thermochronometers","docAbstract":"<p>A suite of new techniques in thermochronometry allow analysis of the thermal history of a sample over a broad range of temperature sensitivities. New analysis tools must be developed that fully and formally integrate these techniques, allowing a single geologic interpretation of the rate and timing of exhumation and burial events consistent with all data. We integrate a thermal model of burial and exhumation, (U-Th)/He age modeling, and fission track age and length modeling. We then use a genetic algorithm to efficiently explore possible time-exhumation histories of a vertical sample profile (such as a borehole), simultaneously solving for exhumation and burial rates as well as changes in background heat flow. We formally combine all data in a rigorous statistical fashion. By parameterizing the model in terms of exhumation rather than time-temperature paths (as traditionally done in fission track modeling), we can ensure that exhumation histories result in a sedimentary basin whose thickness is consistent with the observed basin, a physically based constraint that eliminates otherwise acceptable thermal histories. We apply the technique to heat flow and thermochronometry data from the 2.1 -km-deep San Andreas Fault Observatory at Depth pilot hole near the San Andreas fault, California. We find that the site experienced &lt;1 km of exhumation or burial since the onset of San Andreas fault activity&nbsp;</p>","language":"English","publisher":"Wiley","doi":"10.1029/2006JB004725","issn":"01480227","usgsCitation":"d'Alessio, M., and Williams, C., 2007, Putting it all together: Exhumation histories from a formal combination of heat flow and a suite of thermochronometers: Journal of Geophysical Research B: Solid Earth, v. 112, no. 8, B08412, 17 p., https://doi.org/10.1029/2006JB004725.","productDescription":"B08412, 17 p.","costCenters":[],"links":[{"id":477000,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006jb004725","text":"Publisher Index Page"},{"id":238937,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"8","noUsgsAuthors":false,"publicationDate":"2007-08-16","publicationStatus":"PW","scienceBaseUri":"505a9049e4b0c8380cd7fc46","contributors":{"authors":[{"text":"d'Alessio, M. A.","contributorId":43159,"corporation":false,"usgs":true,"family":"d'Alessio","given":"M. A.","affiliations":[],"preferred":false,"id":429493,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, C.F. 0000-0003-2196-5496","orcid":"https://orcid.org/0000-0003-2196-5496","contributorId":20401,"corporation":false,"usgs":true,"family":"Williams","given":"C.F.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":429492,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030991,"text":"70030991 - 2007 - Regional disconformities in Turonian and Coniacian (Upper Cretaceous) strata in Colorado, Wyoming, and adjoining states - Biochronological evidence","interactions":[],"lastModifiedDate":"2020-01-27T06:37:38","indexId":"70030991","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3310,"text":"Rocky Mountain Geology","active":true,"publicationSubtype":{"id":10}},"title":"Regional disconformities in Turonian and Coniacian (Upper Cretaceous) strata in Colorado, Wyoming, and adjoining states - Biochronological evidence","docAbstract":"Siliciclastic and calcareous sedimentary rocks of early Late Cretaceous age in the Western Interior of the United States have been assigned to, in ascending order, the Graneros Shale, Greenhorn Formation, Carlile Shale, Niobrara Formation, and their lateral equivalents (including members of the Frontier Formation and overlying formations). This sequence of formations was deposited intermittently within and near an epicontinental seaway during the Cenomanian, Turonian, and Coniacian stages of the Cretaceous. It encloses three conspicuous and widespread disconformities that reflect regional marine regressions and transgressions as well as moderate tectonism. The disconformities and associated lacunae occupy three large areas within Wyoming, Colorado, and adjoining states. In parts of that region, as in northwestern Wyoming, a lacuna can represent more than one period of erosion and more than a single disconformity. Evidence for these disconformities was obtained from about 175 collections of molluscan fossils and from sedimentological studies of outcrops and borehole logs, supplemented by previously published data.","language":"English","publisher":"University of Wyoming Geology and Geophysics ","doi":"10.2113/gsrocky.42.2.95","issn":"15557332","usgsCitation":"Merewether, E.A., Cobban, W., and Obradovich, J.D., 2007, Regional disconformities in Turonian and Coniacian (Upper Cretaceous) strata in Colorado, Wyoming, and adjoining states - Biochronological evidence: Rocky Mountain Geology, v. 42, no. 2, p. 95-122, https://doi.org/10.2113/gsrocky.42.2.95.","productDescription":"28 p.","startPage":"95","endPage":"122","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":238536,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":268085,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/gsrocky.42.2.95"}],"country":"United States","state":"Colorado, Wyoming","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-104.053249,41.001406],[-104.039238,41.001502],[-104.023383,41.001887],[-104.018223,41.001617],[-103.972642,41.001615],[-103.971373,41.001524],[-103.953525,41.001596],[-103.906324,41.001387],[-103.896207,41.00175],[-103.877967,41.001673],[-103.858449,41.001681],[-103.750498,41.002054],[-103.574522,41.001721],[-103.497447,41.001635],[-103.486697,41.001914],[-103.421975,41.002007],[-103.421925,41.001969],[-103.396991,41.002558],[-103.382492,41.002232],[-103.365314,41.001846],[-103.362979,41.001844],[-103.077804,41.002298],[-103.076536,41.002253],[-103.059538,41.002368],[-103.057998,41.002368],[-103.043444,41.002344],[-103.038704,41.002251],[-103.002026,41.002486],[-103.000102,41.0024],[-102.98269,41.002157],[-102.981483,41.002112],[-102.963669,41.002186],[-102.962522,41.002072],[-102.960706,41.002059],[-102.959624,41.002095],[-102.94483,41.002303],[-102.943109,41.002051],[-102.925568,41.00228],[-102.924029,41.002142],[-102.906547,41.002276],[-102.904796,41.002207],[-102.887407,41.002178],[-102.885746,41.002131],[-102.867822,41.002183],[-102.865784,41.001988],[-102.849263,41.002301],[-102.846455,41.002256],[-102.830303,41.002351],[-102.82728,41.002143],[-102.773546,41.002414],[-102.766723,41.002275],[-102.754617,41.002361],[-102.739624,41.00223],[-102.653463,41.002332],[-102.621033,41.002597],[-102.578696,41.002291],[-102.575738,41.002268],[-102.575496,41.0022],[-102.566048,41.0022],[-102.556789,41.002219],[-102.487955,41.002445],[-102.470537,41.002382],[-102.469223,41.002424],[-102.379593,41.002301],[-102.364066,41.002174],[-102.292833,41.002207],[-102.292622,41.00223],[-102.292553,41.002207],[-102.291354,41.002207],[-102.2721,41.002245],[-102.267812,41.002383],[-102.231931,41.002327],[-102.2122,41.002462],[-102.209361,41.002442],[-102.19121,41.002326],[-102.124972,41.002338],[-102.070598,41.002423],[-102.051718,41.002377],[-102.051614,41.002377],[-102.051292,40.749591],[-102.051292,40.749586],[-102.051398,40.697542],[-102.051725,40.537839],[-102.051519,40.520094],[-102.051465,40.440008],[-102.05184,40.396396],[-102.051572,40.39308],[-102.051798,40.360069],[-102.051553,40.349214],[-102.051309,40.338381],[-102.051922,40.235344],[-102.051894,40.229193],[-102.051909,40.162674],[-102.052001,40.148359],[-102.051744,40.003078],[-102.051569,39.849805],[-102.051363,39.843471],[-102.051318,39.833311],[-102.051254,39.818992],[-102.050594,39.675594],[-102.050099,39.653812],[-102.050422,39.646048],[-102.049954,39.592331],[-102.049806,39.574058],[-102.049764,39.56818],[-102.049554,39.538932],[-102.049673,39.536691],[-102.049679,39.506183],[-102.049369,39.423333],[-102.04937,39.41821],[-102.049167,39.403597],[-102.04896,39.373712],[-102.048449,39.303138],[-102.04725,39.13702],[-102.047189,39.133147],[-102.047134,39.129701],[-102.046571,39.047038],[-102.045388,38.813392],[-102.045334,38.799463],[-102.045448,38.783453],[-102.045371,38.770064],[-102.045287,38.755528],[-102.045375,38.754339],[-102.045212,38.697567],[-102.045156,38.688555],[-102.045127,38.686725],[-102.04516,38.675221],[-102.045102,38.674946],[-102.045074,38.669617],[-102.045288,38.615249],[-102.045288,38.615168],[-102.045211,38.581609],[-102.045189,38.558732],[-102.045223,38.543797],[-102.045112,38.523784],[-102.045262,38.505532],[-102.045263,38.505395],[-102.045324,38.453647],[-102.044936,38.41968],[-102.044442,38.415802],[-102.044944,38.384419],[-102.044613,38.312324],[-102.044568,38.268819],[-102.044567,38.268749],[-102.04451,38.262412],[-102.044398,38.250015],[-102.044251,38.141778],[-102.044589,38.125013],[-102.044255,38.113011],[-102.044644,38.045532],[-102.043844,37.928102],[-102.043845,37.926135],[-102.043219,37.867929],[-102.043033,37.824146],[-102.042953,37.803535],[-102.042668,37.788758],[-102.042158,37.760164],[-102.04199,37.738541],[-102.041876,37.723875],[-102.041574,37.680436],[-102.041694,37.665681],[-102.041582,37.654495],[-102.041585,37.644282],[-102.041618,37.607868],[-102.041894,37.557977],[-102.041899,37.541186],[-102.042016,37.535261],[-102.041786,37.506066],[-102.041801,37.469488],[-102.041755,37.434855],[-102.041669,37.43474],[-102.041676,37.409898],[-102.041586,37.38919],[-102.041524,37.375018],[-102.042089,37.352819],[-102.041974,37.352613],[-102.041817,37.30949],[-102.041664,37.29765],[-102.041963,37.258164],[-102.042002,37.141744],[-102.042135,37.125021],[-102.042092,37.125021],[-102.041809,37.111973],[-102.041983,37.106551],[-102.04192,37.035083],[-102.041749,37.034397],[-102.041921,37.032178],[-102.04195,37.030805],[-102.041952,37.024742],[-102.04224,36.993083],[-102.054503,36.993109],[-102.184271,36.993593],[-102.208316,36.99373],[-102.260789,36.994388],[-102.355288,36.994506],[-102.355367,36.994575],[-102.698142,36.995149],[-102.74206,36.997689],[-102.75986,37.000019],[-102.778569,36.999242],[-102.806762,37.000019],[-102.814616,37.000783],[-102.841989,36.999598],[-102.979613,36.998549],[-102.985807,36.998571],[-102.986976,36.998524],[-103.002199,37.000104],[-103.086106,37.000174],[-103.155922,37.000232],[-103.733247,36.998016],[-103.734364,36.998041],[-104.007855,36.996239],[-104.250536,36.994644],[-104.338833,36.993535],[-104.519257,36.993766],[-104.624556,36.994377],[-104.625545,36.993599],[-104.645029,36.993378],[-104.732031,36.993447],[-104.73212,36.993484],[-105.000554,36.993264],[-105.029228,36.992729],[-105.1208,36.995428],[-105.155042,36.995339],[-105.220613,36.995169],[-105.251296,36.995605],[-105.41931,36.995856],[-105.442459,36.995994],[-105.447255,36.996017],[-105.465182,36.995991],[-105.508836,36.995895],[-105.512485,36.995777],[-105.533922,36.995875],[-105.62747,36.995679],[-105.66472,36.995874],[-105.716471,36.995849],[-105.71847,36.995846],[-105.996159,36.995418],[-105.997472,36.995417],[-106.006634,36.995343],[-106.201469,36.994122],[-106.247705,36.994266],[-106.248675,36.994288],[-106.293279,36.99389],[-106.343139,36.99423],[-106.47628,36.993839],[-106.500589,36.993768],[-106.617159,36.992967],[-106.617125,36.993004],[-106.628652,36.993175],[-106.628733,36.993161],[-106.661344,36.993243],[-106.675626,36.993123],[-106.750591,36.992461],[-106.869796,36.992426],[-106.877292,37.000139],[-107.420913,37.000005],[-107.420915,37.000005],[-107.481737,37.000005],[-108.000623,37.000001],[-108.249358,36.999015],[-108.250635,36.999561],[-108.288086,36.999555],[-108.2884,36.99952],[-108.320464,36.999499],[-108.320721,36.99951],[-108.379203,36.999459],[-108.619689,36.999249],[-108.620309,36.999287],[-108.954404,36.998906],[-108.958868,36.998913],[-109.045223,36.999084],[-109.045166,37.072742],[-109.045058,37.074661],[-109.044995,37.086429],[-109.045189,37.096271],[-109.045173,37.109464],[-109.045203,37.111958],[-109.045156,37.112064],[-109.045995,37.177279],[-109.045978,37.201831],[-109.045487,37.210844],[-109.045584,37.249351],[-109.046039,37.249993],[-109.04581,37.374993],[-109.043464,37.484711],[-109.043137,37.499992],[-109.041915,37.530653],[-109.041865,37.530726],[-109.041806,37.604171],[-109.042131,37.617662],[-109.042089,37.623795],[-109.042269,37.666067],[-109.041732,37.711214],[-109.04176,37.713182],[-109.041636,37.74021],[-109.042098,37.74999],[-109.041461,37.800105],[-109.041754,37.835826],[-109.041723,37.842051],[-109.041844,37.872788],[-109.041653,37.88117],[-109.041058,37.907236],[-109.043121,37.97426],[-109.042819,37.997068],[-109.04282,37.999301],[-109.041837,38.153022],[-109.041762,38.16469],[-109.054648,38.244921],[-109.060062,38.275489],[-109.059962,38.499987],[-109.060253,38.599328],[-109.059541,38.719888],[-109.057388,38.795456],[-109.054189,38.874984],[-109.053943,38.904414],[-109.053797,38.905284],[-109.053233,38.942467],[-109.053292,38.942878],[-109.052436,38.999985],[-109.051512,39.126095],[-109.050765,39.366677],[-109.051363,39.497674],[-109.05104,39.660472],[-109.050615,39.87497],[-109.050873,40.058915],[-109.050813,40.059579],[-109.050944,40.180712],[-109.050973,40.180849],[-109.050969,40.222662],[-109.050946,40.444368],[-109.050314,40.495092],[-109.050698,40.499963],[-109.049955,40.539901],[-109.050074,40.540358],[-109.048044,40.619231],[-109.048249,40.653601],[-109.048373,40.662602],[-109.049088,40.714562],[-109.048455,40.826081],[-109.050076,41.000659],[-109.173682,41.000859],[-109.231985,41.002059],[-109.250735,41.001009],[-109.500694,40.999127],[-109.534926,40.998143],[-109.676421,40.998395],[-109.713877,40.998266],[-109.715409,40.998191],[-109.854302,40.997661],[-109.855299,40.997614],[-109.97553,40.997912],[-109.999838,40.99733],[-110.000708,40.997352],[-110.006495,40.997815],[-110.048476,40.997555],[-110.121639,40.997101],[-110.125709,40.99655],[-110.237848,40.995427],[-110.250709,40.996089],[-110.375714,40.994947],[-110.500718,40.994746],[-110.539819,40.996346],[-110.715026,40.996347],[-110.750727,40.996847],[-111.046723,40.997959],[-111.046551,41.251716],[-111.0466,41.360692],[-111.046264,41.377731],[-111.045789,41.565571],[-111.045818,41.579845],[-111.046689,42.001567],[-111.047109,42.142497],[-111.047107,42.148971],[-111.047058,42.182672],[-111.047097,42.194773],[-111.047074,42.280787],[-111.04708,42.34942],[-111.046801,42.504946],[-111.046719,42.513118],[-111.046017,42.582723],[-111.043564,42.722624],[-111.044135,42.874924],[-111.043959,42.96445],[-111.043957,42.969482],[-111.043924,42.975063],[-111.044129,43.018702],[-111.044156,43.020052],[-111.044206,43.022614],[-111.044034,43.024581],[-111.044034,43.024844],[-111.044033,43.026411],[-111.044094,43.02927],[-111.043997,43.041415],[-111.044058,43.04464],[-111.044063,43.046302],[-111.044086,43.054819],[-111.044117,43.060309],[-111.04415,43.066172],[-111.044162,43.068222],[-111.044143,43.072364],[-111.044235,43.177121],[-111.044266,43.177236],[-111.044232,43.18444],[-111.044168,43.189244],[-111.044229,43.195579],[-111.044617,43.31572],[-111.045205,43.501136],[-111.045706,43.659112],[-111.04588,43.681033],[-111.046118,43.684902],[-111.046051,43.685812],[-111.04611,43.687848],[-111.046421,43.722059],[-111.046435,43.726545],[-111.04634,43.726957],[-111.046715,43.815832],[-111.046515,43.908376],[-111.046917,43.974978],[-111.047064,43.983467],[-111.047349,43.999921],[-111.049077,44.020072],[-111.048751,44.060403],[-111.048751,44.060838],[-111.048633,44.062903],[-111.048452,44.114831],[-111.049119,44.124923],[-111.049695,44.353626],[-111.049148,44.374925],[-111.049216,44.435811],[-111.049194,44.438058],[-111.048974,44.474072],[-111.055208,44.624927],[-111.055333,44.666263],[-111.055511,44.725343],[-111.056416,44.749928],[-111.056888,44.866658],[-111.055629,44.933578],[-111.056207,44.935901],[-111.055199,45.001321],[-111.044275,45.001345],[-110.785008,45.002952],[-110.761554,44.999934],[-110.750767,44.997948],[-110.705272,44.992324],[-110.552433,44.992237],[-110.547165,44.992459],[-110.48807,44.992361],[-110.402927,44.99381],[-110.362698,45.000593],[-110.342131,44.999053],[-110.324441,44.999156],[-110.28677,44.99685],[-110.199503,44.996188],[-110.110103,45.003905],[-110.026347,45.003665],[-110.025544,45.003602],[-109.99505,45.003174],[-109.875735,45.003275],[-109.798687,45.002188],[-109.75073,45.001605],[-109.663673,45.002536],[-109.574321,45.002631],[-109.386432,45.004887],[-109.375713,45.00461],[-109.269294,45.005283],[-109.263431,45.005345],[-109.103445,45.005904],[-109.08301,44.99961],[-109.062262,44.999623],[-108.621313,45.000408],[-108.578484,45.000484],[-108.565921,45.000578],[-108.500679,44.999691],[-108.271201,45.000251],[-108.249345,44.999458],[-108.238139,45.000206],[-108.218479,45.000541],[-108.14939,45.001062],[-108.000663,45.001223],[-107.997353,45.001565],[-107.911743,45.001292],[-107.750654,45.000778],[-107.608854,45.00086],[-107.607824,45.000929],[-107.49205,45.00148],[-107.351441,45.001407],[-107.13418,45.000109],[-107.125633,44.999388],[-107.105685,44.998734],[-107.084939,44.996599],[-107.074996,44.997004],[-107.050801,44.996424],[-106.892875,44.995947],[-106.888773,44.995885],[-106.263586,44.993788],[-106.024814,44.993688],[-105.928184,44.993647],[-105.914258,44.999986],[-105.913382,45.000941],[-105.848065,45.000396],[-105.076607,45.000347],[-105.038405,45.000345],[-105.025266,45.00029],[-105.019284,45.000329],[-105.01824,45.000437],[-104.765063,44.999183],[-104.759855,44.999066],[-104.72637,44.999518],[-104.665171,44.998618],[-104.663882,44.998869],[-104.470422,44.998453],[-104.470117,44.998453],[-104.250145,44.99822],[-104.057698,44.997431],[-104.055914,44.874986],[-104.056496,44.867034],[-104.055963,44.768236],[-104.055963,44.767962],[-104.055934,44.72372],[-104.05587,44.723422],[-104.055777,44.700466],[-104.055938,44.693881],[-104.05581,44.691343],[-104.055877,44.571016],[-104.055892,44.543341],[-104.055927,44.51773],[-104.055389,44.249983],[-104.054487,44.180381],[-104.054562,44.141081],[-104.05495,43.93809],[-104.055077,43.936535],[-104.055488,43.853477],[-104.055488,43.853476],[-104.055138,43.750421],[-104.055133,43.747105],[-104.054902,43.583852],[-104.054885,43.583512],[-104.05484,43.579368],[-104.055032,43.558603],[-104.054787,43.503328],[-104.054786,43.503072],[-104.054779,43.477815],[-104.054766,43.428914],[-104.054614,43.390949],[-104.054403,43.325914],[-104.054218,43.30437],[-104.053884,43.297047],[-104.053876,43.289801],[-104.053127,43.000585],[-104.052863,42.754569],[-104.052809,42.749966],[-104.052583,42.650062],[-104.052741,42.633982],[-104.052586,42.630917],[-104.052773,42.611766],[-104.052775,42.61159],[-104.052775,42.610813],[-104.053107,42.499964],[-104.052776,42.25822],[-104.052793,42.249962],[-104.053125,42.249962],[-104.052761,42.170278],[-104.052547,42.166801],[-104.053001,42.137254],[-104.052738,42.133769],[-104.0526,42.124963],[-104.052954,42.089077],[-104.052967,42.075004],[-104.05288,42.021761],[-104.052729,42.016318],[-104.052704,42.001718],[-104.052699,41.998673],[-104.052761,41.994967],[-104.05283,41.9946],[-104.052856,41.975958],[-104.052734,41.973007],[-104.052991,41.914973],[-104.052931,41.906143],[-104.053026,41.885464],[-104.052774,41.733401],[-104.05283,41.697954],[-104.052913,41.64519],[-104.052945,41.638167],[-104.052975,41.622931],[-104.052735,41.613676],[-104.052859,41.592254],[-104.05254,41.564274],[-104.052531,41.552723],[-104.052584,41.55265],[-104.052692,41.541154],[-104.052686,41.539111],[-104.052476,41.522343],[-104.052478,41.515754],[-104.05234,41.417865],[-104.05216,41.407662],[-104.052287,41.393307],[-104.052288,41.393214],[-104.052687,41.330569],[-104.052324,41.321144],[-104.052476,41.320961],[-104.052568,41.316202],[-104.052453,41.278202],[-104.052574,41.278019],[-104.052666,41.275251],[-104.053514,41.157257],[-104.053142,41.114457],[-104.053083,41.104985],[-104.053025,41.090274],[-104.053177,41.089725],[-104.053097,41.018045],[-104.053158,41.016809],[-104.053249,41.001406]]]},\"properties\":{\"name\":\"Colorado\",\"nation\":\"USA  \"}}]}","volume":"42","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a4bee4b0e8fec6cdbc41","contributors":{"authors":[{"text":"Merewether, E. Allen merewether@usgs.gov","contributorId":3586,"corporation":false,"usgs":true,"family":"Merewether","given":"E.","email":"merewether@usgs.gov","middleInitial":"Allen","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":780311,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cobban, William A.","contributorId":99529,"corporation":false,"usgs":true,"family":"Cobban","given":"William A.","affiliations":[],"preferred":false,"id":780312,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Obradovich, John D.","contributorId":84361,"corporation":false,"usgs":true,"family":"Obradovich","given":"John","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":780313,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031064,"text":"70031064 - 2007 - Prediction of lethal/effective concentration/dose in the presence of multiple auxiliary covariates and components of variance","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70031064","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Prediction of lethal/effective concentration/dose in the presence of multiple auxiliary covariates and components of variance","docAbstract":"Predictors of the percentile lethal/effective concentration/dose are commonly used measures of efficacy and toxicity. Typically such quantal-response predictors (e.g., the exposure required to kill 50% of some population) are estimated from simple bioassays wherein organisms are exposed to a gradient of several concentrations of a single agent. The toxicity of an agent may be influenced by auxiliary covariates, however, and more complicated experimental designs may introduce multiple variance components. Prediction methods lag examples of those cases. A conventional two-stage approach consists of multiple bivariate predictions of, say, medial lethal concentration followed by regression of those predictions on the auxiliary covariates. We propose a more effective and parsimonious class of generalized nonlinear mixed-effects models for prediction of lethal/effective dose/concentration from auxiliary covariates. We demonstrate examples using data from a study regarding the effects of pH and additions of variable quantities 2???,5???-dichloro-4???- nitrosalicylanilide (niclosamide) on the toxicity of 3-trifluoromethyl-4- nitrophenol to larval sea lamprey (Petromyzon marinus). The new models yielded unbiased predictions and root-mean-squared errors (RMSEs) of prediction for the exposure required to kill 50 and 99.9% of some population that were 29 to 82% smaller, respectively, than those from the conventional two-stage procedure. The model class is flexible and easily implemented using commonly available software. ?? 2007 SETAC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1897/06-630R.1","issn":"07307268","usgsCitation":"Gutreuter, S., and Boogaard, M., 2007, Prediction of lethal/effective concentration/dose in the presence of multiple auxiliary covariates and components of variance: Environmental Toxicology and Chemistry, v. 26, no. 9, p. 1978-1986, https://doi.org/10.1897/06-630R.1.","startPage":"1978","endPage":"1986","numberOfPages":"9","costCenters":[],"links":[{"id":211453,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/06-630R.1"},{"id":238744,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"9","noUsgsAuthors":false,"publicationDate":"2007-09-01","publicationStatus":"PW","scienceBaseUri":"505a81efe4b0c8380cd7b7f1","contributors":{"authors":[{"text":"Gutreuter, S.","contributorId":79829,"corporation":false,"usgs":true,"family":"Gutreuter","given":"S.","email":"","affiliations":[],"preferred":false,"id":429887,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boogaard, M.A.","contributorId":92994,"corporation":false,"usgs":true,"family":"Boogaard","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":429888,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031074,"text":"70031074 - 2007 - Analysis of pumping‐induced unsaturated regions beneath a perennial river","interactions":[],"lastModifiedDate":"2023-07-28T11:24:44.808348","indexId":"70031074","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Analysis of pumping‐induced unsaturated regions beneath a perennial river","docAbstract":"<p><span>The presence of an unsaturated region beneath a streambed during groundwater pumping near streams can reduce the pumping capacity, change flow paths, and alter the types of biological transformations in the streambed sediments. A three‐dimensional, multiphase flow model of two horizontal collector wells along the Russian River near Forestville, California, was developed to investigate the impact of varying the ratio of the aquifer to streambed permeability on (1) the formation of an unsaturated region beneath the stream, (2) the pumping capacity, (3) stream water fluxes through the streambed, and (4) stream water traveltimes to the collector wells. The aquifer to streambed permeability ratio at which the unsaturated region was initially observed ranged from 10 to 100. The size of the unsaturated region beneath the streambed increased as the aquifer to streambed permeability ratio increased. The simulations also indicated that for a particular aquifer permeability, decreasing the streambed permeability by only a factor of 2–3 from the permeability where desaturation initially occurred resulted in reducing the pumping capacity. In some cases, the stream water fluxes increased as the streambed permeability decreased. However, the stream water residence times increased and the fraction of stream water that reached that the wells decreased as the streambed permeability decreased, indicating that a higher streambed flux does not necessarily correlate to greater recharge of stream water around the wells.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006WR005389","usgsCitation":"Su, G.W., Jasperse, J., Seymour, D., Constantz, J., and Zhou, Q., 2007, Analysis of pumping‐induced unsaturated regions beneath a perennial river: Water Resources Research, v. 43, no. 8, W08421, 14 p., https://doi.org/10.1029/2006WR005389.","productDescription":"W08421, 14 p.","costCenters":[],"links":[{"id":477077,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006wr005389","text":"Publisher Index Page"},{"id":238873,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"8","noUsgsAuthors":false,"publicationDate":"2007-08-22","publicationStatus":"PW","scienceBaseUri":"5059eb29e4b0c8380cd48c6d","contributors":{"authors":[{"text":"Su, Grace W.","contributorId":145734,"corporation":false,"usgs":false,"family":"Su","given":"Grace","email":"","middleInitial":"W.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":429917,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jasperse, James","contributorId":64857,"corporation":false,"usgs":false,"family":"Jasperse","given":"James","email":"","affiliations":[],"preferred":false,"id":429920,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Seymour, Donald","contributorId":175253,"corporation":false,"usgs":false,"family":"Seymour","given":"Donald","email":"","affiliations":[{"id":17863,"text":"Sonoma County Water Agency","active":true,"usgs":false}],"preferred":false,"id":429919,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Constantz, James E. 0000-0002-4062-2096 jconstan@usgs.gov","orcid":"https://orcid.org/0000-0002-4062-2096","contributorId":1962,"corporation":false,"usgs":true,"family":"Constantz","given":"James E.","email":"jconstan@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":429918,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zhou, Quanlin","contributorId":178881,"corporation":false,"usgs":false,"family":"Zhou","given":"Quanlin","email":"","affiliations":[],"preferred":false,"id":429921,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031075,"text":"70031075 - 2007 - Modeled impact of anthropogenic land cover change on climate","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70031075","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2216,"text":"Journal of Climate","active":true,"publicationSubtype":{"id":10}},"title":"Modeled impact of anthropogenic land cover change on climate","docAbstract":"Equilibrium experiments with the Geophysical Fluid Dynamics Laboratory's climate model are used to investigate the impact of anthropogenic land cover change on climate. Regions of altered land cover include large portions of Europe, India, eastern China, and the eastern United States. Smaller areas of change are present in various tropical regions. This study focuses on the impacts of biophysical changes associated with the land cover change (albedo, root and stomatal properties, roughness length), which is almost exclusively a conversion from forest to grassland in the model; the effects of irrigation or other water management practices and the effects of atmospheric carbon dioxide changes associated with land cover conversion are not included in these experiments. The model suggests that observed land cover changes have little or no impact on globally averaged climatic variables (e.g., 2-m air temperature is 0.008 K warmer in a simulation with 1990 land cover compared to a simulation with potential natural vegetation cover). Differences in the annual mean climatic fields analyzed did not exhibit global field significance. Within some of the regions of land cover change, however, there are relatively large changes of many surface climatic variables. These changes are highly significant locally in the annual mean and in most months of the year in eastern Europe and northern India. They can be explained mainly as direct and indirect consequences of model-prescribed increases in surface albedo, decreases in rooting depth, and changes of stomatal control that accompany deforestation. ?? 2007 American Meteorological Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Climate","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1175/JCLI4185.1","issn":"08948755","usgsCitation":"Findell, K., Shevliakova, E., Milly, P., and Stouffer, R., 2007, Modeled impact of anthropogenic land cover change on climate: Journal of Climate, v. 20, no. 14, p. 3621-3634, https://doi.org/10.1175/JCLI4185.1.","startPage":"3621","endPage":"3634","numberOfPages":"14","costCenters":[],"links":[{"id":477007,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1175/jcli4185.1","text":"Publisher Index Page"},{"id":238874,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211567,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1175/JCLI4185.1"}],"volume":"20","issue":"14","noUsgsAuthors":false,"publicationDate":"2007-07-15","publicationStatus":"PW","scienceBaseUri":"505a5bbde4b0c8380cd6f78e","contributors":{"authors":[{"text":"Findell, K.L.","contributorId":20137,"corporation":false,"usgs":true,"family":"Findell","given":"K.L.","affiliations":[],"preferred":false,"id":429922,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shevliakova, E.","contributorId":27238,"corporation":false,"usgs":true,"family":"Shevliakova","given":"E.","affiliations":[],"preferred":false,"id":429924,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Milly, P. C. D.","contributorId":100489,"corporation":false,"usgs":true,"family":"Milly","given":"P. C. D.","affiliations":[],"preferred":false,"id":429925,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stouffer, R.J.","contributorId":23757,"corporation":false,"usgs":true,"family":"Stouffer","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":429923,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031077,"text":"70031077 - 2007 - An exhumed Late Paleozoic canyon in the rocky mountains","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70031077","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"An exhumed Late Paleozoic canyon in the rocky mountains","docAbstract":"Landscapes are thought to be youthful, particularly those of active orogenic belts. Unaweep Canyon in the Colorado Rocky Mountains, a large gorge drained by two opposite-flowing creeks, is an exception. Its origin has long been enigmatic, but new data indicate that it is an exhumed late Paleozoic landform. Its survival within a region of profound late Paleozoic orogenesis demands a reassessment of tectonic models for the Ancestral Rocky Mountains, and its form and genesis have significant implications for understanding late Paleozoic equatorial climate. This discovery highlights the utility of paleogeomorphology as a tectonic and climatic indicator. ?? 2007 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/518075","issn":"00221376","usgsCitation":"Soreghan, G., Sweet, D., Marra, K., Eble, C., Soreghan, M.J., Elmore, R., Kaplan, S., and Blum, M., 2007, An exhumed Late Paleozoic canyon in the rocky mountains: Journal of Geology, v. 115, no. 4, p. 473-481, https://doi.org/10.1086/518075.","startPage":"473","endPage":"481","numberOfPages":"9","costCenters":[],"links":[{"id":238909,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211595,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/518075"}],"volume":"115","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea60e4b0c8380cd4880f","contributors":{"authors":[{"text":"Soreghan, G.S.","contributorId":30735,"corporation":false,"usgs":true,"family":"Soreghan","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":429929,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sweet, D.E.","contributorId":95995,"corporation":false,"usgs":true,"family":"Sweet","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":429935,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Marra, K.R.","contributorId":74198,"corporation":false,"usgs":true,"family":"Marra","given":"K.R.","email":"","affiliations":[],"preferred":false,"id":429934,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Eble, C.F.","contributorId":35346,"corporation":false,"usgs":true,"family":"Eble","given":"C.F.","email":"","affiliations":[],"preferred":false,"id":429930,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Soreghan, M. J.","contributorId":40331,"corporation":false,"usgs":true,"family":"Soreghan","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":429931,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Elmore, R.D.","contributorId":64450,"corporation":false,"usgs":true,"family":"Elmore","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":429933,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kaplan, S.A.","contributorId":59626,"corporation":false,"usgs":true,"family":"Kaplan","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":429932,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Blum, M.D.","contributorId":96897,"corporation":false,"usgs":true,"family":"Blum","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":429936,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70031015,"text":"70031015 - 2007 - Evidence for a physical linkage between galactic cosmic rays and regional climate time series","interactions":[],"lastModifiedDate":"2012-03-12T17:21:05","indexId":"70031015","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":661,"text":"Advances in Space Research","active":true,"publicationSubtype":{"id":10}},"title":"Evidence for a physical linkage between galactic cosmic rays and regional climate time series","docAbstract":"The effects of solar variability on regional climate time series were examined using a sequence of physical connections between total solar irradiance (TSI) modulated by galactic cosmic rays (GCRs), and ocean and atmospheric patterns that affect precipitation and streamflow. The solar energy reaching the Earth's surface and its oceans is thought to be controlled through an interaction between TSI and GCRs, which are theorized to ionize the atmosphere and increase cloud formation and its resultant albedo. High (low) GCR flux may promote cloudiness (clear skies) and higher (lower) albedo at the same time that TSI is lowest (highest) in the solar cycle which in turn creates cooler (warmer) ocean temperature anomalies. These anomalies have been shown to affect atmospheric flow patterns and ultimately affect precipitation over the Midwestern United States. This investigation identified a relation among TSI and geomagnetic index aa (GI-AA), and streamflow in the Mississippi River Basin for the period 1878-2004. The GI-AA was used as a proxy for GCRs. The lag time between the solar signal and streamflow in the Mississippi River at St. Louis, Missouri is approximately 34 years. The current drought (1999-2007) in the Mississippi River Basin appears to be caused by a period of lower solar activity that occurred between 1963 and 1977. There appears to be a solar \"fingerprint\" that can be detected in climatic time series in other regions of the world, with each series having a unique lag time between the solar signal and the hydroclimatic response. A progression of increasing lag times can be spatially linked to the ocean conveyor belt, which may transport the solar signal over a time span of several decades. The lag times for any one region vary slightly and may be linked to the fluctuations in the velocity of the ocean conveyor belt.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Advances in Space Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.asr.2007.02.079","issn":"02731177","usgsCitation":"Perry, C.A., 2007, Evidence for a physical linkage between galactic cosmic rays and regional climate time series: Advances in Space Research, v. 40, no. 3, p. 353-364, https://doi.org/10.1016/j.asr.2007.02.079.","startPage":"353","endPage":"364","numberOfPages":"12","costCenters":[],"links":[{"id":211619,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.asr.2007.02.079"},{"id":238938,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0d30e4b0c8380cd52e79","contributors":{"authors":[{"text":"Perry, C. A.","contributorId":106149,"corporation":false,"usgs":true,"family":"Perry","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":429645,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70031083,"text":"70031083 - 2007 - Rare-earth elements in the Permian Phosphoria formation: Paleo proxies of ocean geochemistry","interactions":[],"lastModifiedDate":"2023-08-07T11:08:54.225469","indexId":"70031083","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1371,"text":"Deep-Sea Research Part II: Topical Studies in Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"Rare-earth elements in the Permian Phosphoria formation: Paleo proxies of ocean geochemistry","docAbstract":"<p>The geochemistry of deposition of the Meade Peak Member of the Phosphoria Formation (MPM) in southeast Idaho, USA, a world-class sedimentary phosphate deposit of Permian age that extends over 300,000&nbsp;km<sup>2</sup>, is ascertained from its rare earth element (REE) composition. Ratios of REE:Al<sub>2</sub>O<sub>3</sub><span>&nbsp;</span>suggest two sources—seawater and terrigenous debris. The seawater-derived marine fraction identifies bottom water in the Phosphoria Sea as O<sub>2</sub>-depleted, denitrifying (suboxic) most of the time, and seldom sulfate-reducing (anoxic). This interpretation is supported by earlier research that showed progressively greater ratios in the marine sediment fraction of Cr:Ni&gt;V:Ni⪢Mo:Ni, relative to their ratios in seawater; for which marine Cr, V, and Mo can have a dominantly O<sub>2</sub>–depleted bottom-water source and Ni a photic-zone, largely algal, source. The water chemistry was maintained by a balance between bacterial oxidation of organic matter settling through the water column, determined largely by primary productivity in the photic zone, and the flux of oxidants into the bottom water via advection of seawater from the open ocean.</p><p>Samples strongly enriched in carbonate fluorapatite, the dominant REE host mineral, have variable Er/Sm, Tm/Sm, and Yb/Sm ratios. Their distribution may represent greater advection of seawater between the Phosphoria Sea and open ocean during deposition of two ore zones than a center waste and greater upwelling of nutrient-enriched water into the photic zone. However, the mean rate of deposition of marine Ni, a trace nutrient of algae, and PO<sub>4</sub><sup>3−</sup>, a limiting nutrient, indicate that primary productivity was probably high throughout the depositional history. An alternative interpretation of the variable enrichments of Er, Tm, and Yb, relative to Sm, is that they may reflect temporally variable carbonate alkalinity of open-ocean seawater in Permian time.</p><p>A more strongly negative Ce anomaly for all phosphatic units than the Ce anomaly of modern pelletal phosphate is further indicative of an elevated O<sub>2</sub><span>&nbsp;</span>concentration in the Permo-Carboniferous open ocean, as proposed by others, in contrast to the depletion of O<sub>2</sub><span>&nbsp;</span>in the bottom water of the Phosphoria Sea itself.</p><p>The oceanographic conditions under which the deposit accumulated were likely similar to conditions under which many sedimentary phosphate deposits have accumulated and to conditions under which many black shales that are commonly phosphate poor have accumulated. A shortcoming of several earlier studies of these deposits has resulted from a failure to examine the marine fraction of elements separate from the terrigenous fraction.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.dsr2.2007.04.012","issn":"09670645","usgsCitation":"Piper, D., Perkins, R., and Rowe, H., 2007, Rare-earth elements in the Permian Phosphoria formation: Paleo proxies of ocean geochemistry: Deep-Sea Research Part II: Topical Studies in Oceanography, v. 54, no. 11-13, p. 1396-1413, https://doi.org/10.1016/j.dsr2.2007.04.012.","productDescription":"18 p.","startPage":"1396","endPage":"1413","numberOfPages":"18","costCenters":[],"links":[{"id":239009,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-111.044156,43.020052],[-111.046689,42.001567],[-112.173352,41.996568],[-112.192976,42.001167],[-112.709375,42.000309],[-113.249159,41.996203],[-113.893261,41.988057],[-114.041723,41.99372],[-114.598267,41.994511],[-114.831077,42.002207],[-115.031783,41.996008],[-115.870181,41.996766],[-115.98688,41.998534],[-116.368478,41.996281],[-117.009255,41.998127],[-117.026222,42.000252],[-117.026871,43.832479],[-117.01077,43.862269],[-116.997391,43.864874],[-116.991415,43.863864],[-116.982347,43.86884],[-116.976024,43.895548],[-116.977332,43.905812],[-116.963666,43.921363],[-116.96247,43.928336],[-116.963666,43.952644],[-116.970241,43.958622],[-116.971436,43.964998],[-116.969842,43.967588],[-116.957527,43.972443],[-116.942944,43.987512],[-116.934485,44.021249],[-116.937342,44.029376],[-116.943361,44.035645],[-116.972504,44.048771],[-116.977351,44.085364],[-116.967203,44.090936],[-116.943132,44.09406],[-116.933704,44.100039],[-116.895931,44.154295],[-116.894083,44.160191],[-116.895757,44.171267],[-116.900103,44.176851],[-116.925392,44.191544],[-116.935443,44.193962],[-116.947591,44.191264],[-116.965498,44.194126],[-116.971675,44.197256],[-116.973945,44.225932],[-116.971958,44.235677],[-116.975905,44.242844],[-116.98687,44.245477],[-117.016921,44.245391],[-117.031862,44.248635],[-117.042283,44.242775],[-117.047062,44.229742],[-117.05303,44.229076],[-117.067284,44.24401],[-117.089503,44.258234],[-117.09457,44.270978],[-117.104208,44.27994],[-117.111617,44.280667],[-117.121037,44.277585],[-117.130904,44.269453],[-117.133984,44.262972],[-117.143394,44.258262],[-117.170342,44.25889],[-117.198147,44.273828],[-117.216974,44.288357],[-117.222647,44.297578],[-117.216795,44.308236],[-117.203323,44.313024],[-117.192203,44.32863],[-117.189769,44.336585],[-117.197339,44.347406],[-117.235117,44.373853],[-117.243027,44.390974],[-117.242675,44.396548],[-117.22698,44.405583],[-117.215072,44.427162],[-117.215573,44.453746],[-117.225758,44.477223],[-117.225076,44.482346],[-117.216372,44.48616],[-117.208936,44.485661],[-117.200237,44.492027],[-117.192494,44.503272],[-117.189759,44.513385],[-117.181583,44.52296],[-117.161033,44.525166],[-117.149242,44.536151],[-117.144161,44.545647],[-117.14293,44.557236],[-117.148255,44.564371],[-117.146032,44.568603],[-117.133963,44.57524],[-117.124754,44.583834],[-117.125267,44.593818],[-117.120522,44.614658],[-117.114754,44.624883],[-117.108231,44.62711],[-117.098221,44.640689],[-117.094968,44.652011],[-117.095868,44.664737],[-117.080772,44.684161],[-117.07912,44.692175],[-117.072221,44.700517],[-117.063824,44.703623],[-117.061799,44.706654],[-117.060454,44.721668],[-117.062273,44.727143],[-117.044217,44.74514],[-117.03827,44.748179],[-117.013802,44.756841],[-116.998903,44.756382],[-116.986502,44.762381],[-116.970902,44.773881],[-116.949001,44.777981],[-116.9347,44.783881],[-116.9307,44.789881],[-116.933799,44.796781],[-116.931099,44.804781],[-116.920498,44.81438],[-116.896249,44.84833],[-116.865338,44.870599],[-116.852427,44.887577],[-116.838467,44.923601],[-116.83199,44.933007],[-116.835702,44.940633],[-116.850737,44.958113],[-116.858313,44.978761],[-116.856754,44.984298],[-116.844625,45.001435],[-116.844796,45.015312],[-116.848037,45.021728],[-116.841314,45.030907],[-116.825133,45.03784],[-116.797329,45.060267],[-116.78371,45.076972],[-116.783537,45.093605],[-116.774847,45.105536],[-116.754643,45.113972],[-116.729607,45.142091],[-116.724188,45.162924],[-116.724205,45.171501],[-116.709536,45.203015],[-116.70975,45.217243],[-116.703607,45.239757],[-116.691388,45.263739],[-116.674493,45.276349],[-116.672163,45.288938],[-116.673793,45.321511],[-116.619057,45.39821],[-116.597447,45.41277],[-116.588195,45.44292],[-116.563985,45.460169],[-116.554829,45.46293],[-116.55498,45.472801],[-116.558803,45.480076],[-116.548676,45.510385],[-116.535482,45.525079],[-116.523638,45.54661],[-116.502756,45.566608],[-116.481943,45.577898],[-116.463635,45.602785],[-116.463504,45.615785],[-116.469813,45.620604],[-116.487894,45.649769],[-116.523961,45.677639],[-116.535396,45.691734],[-116.538014,45.714929],[-116.535698,45.734231],[-116.546643,45.750972],[-116.559444,45.755189],[-116.593004,45.778541],[-116.632032,45.784979],[-116.646342,45.779815],[-116.665344,45.781998],[-116.680139,45.79359],[-116.697192,45.820135],[-116.711822,45.826267],[-116.736268,45.826179],[-116.759787,45.816167],[-116.782676,45.825376],[-116.789066,45.833471],[-116.787792,45.844267],[-116.796051,45.858473],[-116.814142,45.877551],[-116.84355,45.892273],[-116.859795,45.907264],[-116.869655,45.923799],[-116.875706,45.945008],[-116.886843,45.958617],[-116.892935,45.974396],[-116.911409,45.988912],[-116.91718,45.996575],[-116.923005,46.018293],[-116.942656,46.061],[-116.957372,46.075449],[-116.978938,46.080007],[-116.981962,46.084915],[-116.982498,46.091347],[-116.978823,46.095731],[-116.959548,46.099058],[-116.955263,46.102237],[-116.951265,46.111161],[-116.950276,46.123464],[-116.922648,46.160744],[-116.92187,46.167808],[-116.965841,46.203417],[-116.96613,46.209453],[-116.956031,46.225976],[-116.955264,46.23088],[-116.966742,46.256923],[-116.991134,46.276342],[-116.990894,46.280372],[-116.98491,46.289738],[-116.986688,46.296662],[-116.99726,46.303151],[-117.007486,46.305302],[-117.020663,46.314793],[-117.022939,46.320175],[-117.023844,46.335976],[-117.030672,46.340315],[-117.055983,46.345531],[-117.06263,46.352522],[-117.062785,46.365287],[-117.046915,46.379577],[-117.035545,46.410012],[-117.034696,46.418318],[-117.039813,46.425425],[-117.039945,47.477823],[-117.042657,47.760857],[-117.041107,48.124904],[-117.035178,48.370878],[-117.032351,48.999188],[-116.049193,49.000912],[-116.04885,47.977186],[-116.03834,47.971318],[-116.030751,47.973349],[-115.998236,47.938779],[-115.993678,47.926183],[-115.982791,47.915994],[-115.969076,47.914256],[-115.959946,47.898142],[-115.939993,47.883153],[-115.919291,47.857406],[-115.906409,47.846261],[-115.900934,47.843064],[-115.881522,47.849672],[-115.870861,47.834939],[-115.852291,47.827991],[-115.845474,47.814967],[-115.848509,47.809331],[-115.847487,47.785227],[-115.84044,47.780172],[-115.837438,47.774846],[-115.835069,47.77006],[-115.835365,47.760957],[-115.831755,47.755785],[-115.824597,47.752154],[-115.803917,47.75848],[-115.797299,47.75752],[-115.780441,47.743447],[-115.783504,47.729305],[-115.776219,47.719818],[-115.77177,47.717412],[-115.758623,47.719041],[-115.752349,47.716743],[-115.730764,47.704426],[-115.72377,47.696671],[-115.726613,47.672093],[-115.73627,47.654762],[-115.72993,47.642442],[-115.708537,47.635356],[-115.694284,47.62346],[-115.689404,47.595402],[-115.706473,47.577299],[-115.721207,47.576323],[-115.734674,47.567401],[-115.746945,47.555293],[-115.747263,47.543197],[-115.741371,47.538645],[-115.71034,47.52951],[-115.708748,47.51264],[-115.694106,47.498634],[-115.686704,47.485596],[-115.653044,47.476035],[-115.654318,47.468077],[-115.663867,47.456936],[-115.671188,47.45439],[-115.69293,47.457237],[-115.718247,47.45316],[-115.728801,47.445159],[-115.731348,47.433381],[-115.728801,47.428925],[-115.718934,47.420967],[-115.69057,47.415059],[-115.657681,47.400651],[-115.648479,47.390293],[-115.644341,47.381826],[-115.639186,47.378605],[-115.617247,47.382521],[-115.578619,47.367007],[-115.570887,47.356375],[-115.551079,47.349856],[-115.548658,47.332213],[-115.531971,47.314121],[-115.526751,47.303219],[-115.51186,47.295219],[-115.487314,47.286518],[-115.470959,47.284873],[-115.457077,47.277794],[-115.428359,47.278722],[-115.410685,47.264228],[-115.371825,47.265213],[-115.3593,47.259461],[-115.339201,47.261623],[-115.326903,47.255912],[-115.324832,47.244841],[-115.317124,47.233305],[-115.298794,47.225245],[-115.294785,47.220914],[-115.29211,47.209861],[-115.300805,47.19393],[-115.300504,47.188139],[-115.286353,47.18327],[-115.261885,47.181742],[-115.255786,47.174725],[-115.255146,47.162876],[-115.243707,47.150347],[-115.223246,47.148974],[-115.200547,47.139154],[-115.189451,47.131032],[-115.172938,47.112881],[-115.170436,47.106265],[-115.140375,47.093013],[-115.136671,47.078276],[-115.120917,47.061237],[-115.107132,47.049041],[-115.102681,47.047239],[-115.098136,47.048897],[-115.087806,47.045519],[-115.071254,47.022083],[-115.066223,46.996375],[-115.057098,46.986758],[-115.049538,46.970774],[-115.031651,46.971548],[-115.028386,46.975659],[-115.001274,46.971901],[-115.00091,46.967703],[-114.986539,46.952099],[-114.960597,46.93001],[-114.929997,46.919625],[-114.927948,46.909948],[-114.936805,46.897378],[-114.931058,46.882108],[-114.931608,46.876799],[-114.938713,46.869021],[-114.943281,46.867971],[-114.947413,46.859324],[-114.940398,46.85605],[-114.928615,46.854815],[-114.92349,46.847594],[-114.92845,46.843242],[-114.927837,46.83599],[-114.920459,46.827697],[-114.904505,46.822851],[-114.897857,46.813184],[-114.888146,46.808573],[-114.880588,46.811791],[-114.864342,46.813858],[-114.861376,46.81196],[-114.860067,46.804988],[-114.856874,46.801633],[-114.835917,46.791111],[-114.829117,46.782503],[-114.808587,46.78235],[-114.79004,46.778729],[-114.765106,46.758153],[-114.76718,46.738828],[-114.773765,46.731805],[-114.779668,46.730411],[-114.788656,46.714033],[-114.76689,46.696901],[-114.751921,46.697207],[-114.740115,46.711771],[-114.713516,46.715138],[-114.699008,46.740223],[-114.696656,46.740572],[-114.649388,46.73289],[-114.632954,46.715495],[-114.620859,46.707415],[-114.623198,46.691511],[-114.631898,46.68397],[-114.641745,46.679286],[-114.642713,46.673145],[-114.635713,46.659375],[-114.621483,46.658143],[-114.614716,46.655256],[-114.611676,46.647704],[-114.616354,46.643646],[-114.615036,46.639733],[-114.593292,46.632848],[-114.583385,46.633227],[-114.561582,46.642043],[-114.547321,46.644485],[-114.498007,46.637655],[-114.486218,46.632829],[-114.466902,46.631695],[-114.45425,46.640974],[-114.453239,46.649266],[-114.424424,46.660648],[-114.410907,46.657466],[-114.394514,46.664846],[-114.360709,46.669059],[-114.332887,46.660756],[-114.32456,46.653579],[-114.320665,46.646963],[-114.322912,46.642938],[-114.322519,46.611066],[-114.333931,46.592162],[-114.334992,46.588154],[-114.331338,46.577781],[-114.33175,46.571914],[-114.339533,46.564039],[-114.348733,46.533792],[-114.349208,46.529514],[-114.342072,46.519679],[-114.351655,46.508119],[-114.35874,46.505306],[-114.375348,46.501855],[-114.385871,46.50437],[-114.395204,46.503148],[-114.400257,46.502143],[-114.403019,46.498675],[-114.400068,46.47718],[-114.394447,46.469549],[-114.383051,46.466402],[-114.379338,46.460166],[-114.376413,46.442983],[-114.384756,46.411784],[-114.408974,46.400438],[-114.422458,46.387097],[-114.411592,46.366688],[-114.410682,46.360673],[-114.413758,46.335945],[-114.433478,46.305502],[-114.425587,46.287899],[-114.427309,46.283624],[-114.441326,46.2738],[-114.453257,46.270939],[-114.465024,46.273127],[-114.470479,46.26732],[-114.468254,46.248796],[-114.451912,46.241253],[-114.449819,46.237119],[-114.443215,46.202943],[-114.445928,46.173933],[-114.478333,46.160876],[-114.489254,46.167684],[-114.514706,46.167726],[-114.527096,46.146218],[-114.5213,46.125287],[-114.488303,46.113106],[-114.474415,46.112515],[-114.460049,46.097104],[-114.461864,46.078571],[-114.468529,46.062484],[-114.492153,46.04729],[-114.494683,46.042546],[-114.493418,46.03717],[-114.490572,46.032427],[-114.480241,46.030325],[-114.473811,46.016614],[-114.477922,46.009025],[-114.47729,46.000802],[-114.470965,45.995742],[-114.425843,45.984984],[-114.411892,45.977883],[-114.409353,45.97141],[-114.403712,45.967049],[-114.402261,45.961489],[-114.404708,45.9559],[-114.423681,45.9441],[-114.431328,45.938023],[-114.431159,45.935737],[-114.413168,45.911479],[-114.404314,45.903497],[-114.395059,45.901458],[-114.387166,45.889164],[-114.388243,45.88234],[-114.409477,45.85164],[-114.44868,45.858891],[-114.470296,45.851343],[-114.498809,45.850676],[-114.509303,45.845531],[-114.517143,45.835993],[-114.512973,45.828825],[-114.544692,45.791447],[-114.555487,45.786249],[-114.566172,45.773864],[-114.535634,45.739095],[-114.504869,45.722176],[-114.495421,45.703321],[-114.499637,45.669035],[-114.507645,45.658949],[-114.522142,45.64934],[-114.529678,45.65232],[-114.53577,45.650613],[-114.563652,45.637412],[-114.563305,45.631612],[-114.553937,45.619299],[-114.544905,45.616673],[-114.538132,45.606834],[-114.558253,45.585104],[-114.559038,45.565706],[-114.549508,45.56059],[-114.526075,45.570771],[-114.517761,45.568129],[-114.498176,45.555473],[-114.473759,45.563278],[-114.460542,45.561283],[-114.456764,45.543983],[-114.438991,45.536076],[-114.415804,45.509753],[-114.388618,45.502903],[-114.36852,45.492716],[-114.36562,45.490416],[-114.360719,45.474116],[-114.345019,45.459916],[-114.333218,45.459316],[-114.279217,45.480616],[-114.270717,45.486116],[-114.261616,45.495816],[-114.247824,45.524283],[-114.248183,45.533226],[-114.251836,45.537812],[-114.248121,45.545877],[-114.227942,45.546423],[-114.203665,45.53557],[-114.192802,45.536596],[-114.180043,45.551432],[-114.154837,45.552916],[-114.135249,45.557465],[-114.129099,45.565491],[-114.131469,45.574444],[-114.122322,45.58426],[-114.100308,45.586354],[-114.086584,45.59118],[-114.0821,45.596958],[-114.08179,45.611329],[-114.067619,45.627706],[-114.033456,45.648629],[-114.018731,45.648616],[-114.014973,45.654008],[-114.013786,45.658238],[-114.02007,45.670332],[-114.019315,45.692937],[-114.015633,45.696127],[-113.986656,45.704564],[-113.971565,45.700636],[-113.93422,45.682232],[-113.930403,45.671878],[-113.919752,45.658536],[-113.900588,45.648259],[-113.898883,45.644167],[-113.902539,45.636945],[-113.904691,45.622007],[-113.886006,45.61702],[-113.861404,45.62366],[-113.823068,45.612486],[-113.806729,45.602146],[-113.802955,45.592631],[-113.803261,45.584193],[-113.804796,45.580358],[-113.819868,45.566326],[-113.834555,45.520729],[-113.809144,45.519908],[-113.796579,45.523462],[-113.778361,45.523415],[-113.766022,45.520621],[-113.759986,45.480735],[-113.78416,45.454946],[-113.764591,45.431403],[-113.763368,45.427732],[-113.768058,45.418147],[-113.765203,45.410601],[-113.733092,45.390173],[-113.73553,45.364738],[-113.7402,45.34559],[-113.738729,45.329741],[-113.689359,45.28355],[-113.688077,45.276407],[-113.691557,45.270912],[-113.692039,45.265191],[-113.684946,45.253706],[-113.678749,45.24927],[-113.665633,45.246265],[-113.657027,45.241436],[-113.650064,45.23471],[-113.636889,45.212983],[-113.599506,45.191114],[-113.589891,45.176986],[-113.594632,45.166034],[-113.57467,45.128411],[-113.554744,45.112901],[-113.513342,45.115225],[-113.506638,45.107288],[-113.510819,45.099902],[-113.520134,45.093033],[-113.485278,45.063519],[-113.47377,45.0617],[-113.460578,45.064879],[-113.45197,45.059247],[-113.44912,45.046098],[-113.449909,45.035167],[-113.437726,45.006967],[-113.446884,44.998545],[-113.443782,44.95989],[-113.448958,44.953544],[-113.467467,44.948061],[-113.480836,44.95031],[-113.494446,44.948597],[-113.498745,44.942314],[-113.491121,44.927548],[-113.474573,44.910846],[-113.455071,44.865424],[-113.422376,44.842595],[-113.377153,44.834858],[-113.356062,44.819798],[-113.3461,44.800611],[-113.354763,44.795468],[-113.354034,44.791745],[-113.341704,44.784853],[-113.301508,44.798985],[-113.278382,44.812706],[-113.247166,44.82295],[-113.238729,44.814144],[-113.209624,44.80907],[-113.19436,44.802151],[-113.183395,44.793565],[-113.179366,44.787142],[-113.163806,44.778921],[-113.158206,44.780847],[-113.131453,44.772837],[-113.131387,44.764738],[-113.137704,44.760109],[-113.134824,44.752763],[-113.102138,44.729027],[-113.101154,44.708578],[-113.098064,44.697477],[-113.081906,44.691392],[-113.06776,44.679474],[-113.067756,44.672807],[-113.07042,44.667844],[-113.068306,44.656374],[-113.065589,44.649371],[-113.051504,44.63695],[-113.049349,44.62938],[-113.053529,44.621187],[-113.07376,44.613928],[-113.083819,44.60222],[-113.061071,44.577329],[-113.042363,44.565237],[-113.04282,44.546757],[-113.019777,44.528505],[-113.020917,44.493827],[-113.003544,44.450814],[-112.981682,44.434279],[-112.951146,44.416699],[-112.915602,44.402699],[-112.886041,44.395874],[-112.881769,44.380315],[-112.855395,44.359975],[-112.844859,44.358221],[-112.820489,44.370946],[-112.81324,44.378103],[-112.812608,44.392275],[-112.821896,44.407436],[-112.836034,44.422653],[-112.828191,44.442472],[-112.797863,44.466112],[-112.781294,44.484888],[-112.749011,44.491233],[-112.735084,44.499159],[-112.71911,44.504344],[-112.707815,44.503023],[-112.671169,44.491265],[-112.660696,44.485756],[-112.601863,44.491015],[-112.584197,44.481368],[-112.573513,44.480983],[-112.550557,44.484928],[-112.541989,44.483971],[-112.518871,44.475784],[-112.512036,44.47042],[-112.511713,44.466445],[-112.50031,44.463051],[-112.473207,44.480027],[-112.460347,44.47571],[-112.435342,44.462216],[-112.387389,44.448058],[-112.368764,44.467153],[-112.358926,44.48628],[-112.3566,44.493127],[-112.358917,44.528847],[-112.35421,44.535638],[-112.348794,44.538691],[-112.319198,44.53911],[-112.315008,44.5419],[-112.315047,44.550049],[-112.312899,44.553536],[-112.286187,44.568472],[-112.242785,44.568091],[-112.230117,44.562759],[-112.226841,44.555239],[-112.229477,44.549494],[-112.221698,44.543519],[-112.183937,44.533067],[-112.179703,44.533021],[-112.164597,44.541666],[-112.136454,44.539911],[-112.129078,44.5363],[-112.125101,44.528527],[-112.106755,44.520829],[-112.096299,44.523212],[-112.093304,44.530002],[-112.069011,44.537104],[-112.036943,44.530323],[-112.032707,44.546642],[-111.995231,44.535444],[-111.980833,44.536682],[-111.951522,44.550062],[-111.947941,44.556776],[-111.903566,44.55723],[-111.887852,44.563413],[-111.870504,44.564033],[-111.849293,44.539837],[-111.842542,44.526069],[-111.821488,44.509286],[-111.807914,44.511716],[-111.806512,44.516264],[-111.761904,44.529841],[-111.758966,44.533766],[-111.746401,44.540766],[-111.737191,44.54306],[-111.715474,44.543543],[-111.704218,44.560205],[-111.681571,44.559864],[-111.614405,44.548991],[-111.585763,44.562843],[-111.562814,44.555209],[-111.546637,44.557099],[-111.518095,44.544177],[-111.500792,44.540062],[-111.471682,44.540824],[-111.467736,44.544521],[-111.469185,44.552044],[-111.492024,44.56081],[-111.519126,44.582916],[-111.525764,44.604883],[-111.50494,44.635746],[-111.473178,44.665479],[-111.468833,44.679335],[-111.47798,44.682393],[-111.484898,44.687578],[-111.490228,44.700221],[-111.489339,44.704946],[-111.486019,44.707654],[-111.438793,44.720546],[-111.429604,44.720149],[-111.424214,44.714024],[-111.414271,44.710741],[-111.398575,44.723343],[-111.394459,44.744578],[-111.397805,44.746738],[-111.393854,44.752549],[-111.385005,44.755128],[-111.37476,44.750295],[-111.36627,44.742234],[-111.366723,44.738361],[-111.355768,44.727602],[-111.348184,44.725459],[-111.341351,44.7293],[-111.323669,44.724474],[-111.29626,44.702271],[-111.26875,44.668279],[-111.276956,44.655626],[-111.262839,44.649658],[-111.25268,44.651092],[-111.224161,44.623402],[-111.231227,44.606915],[-111.23018,44.587025],[-111.225208,44.581006],[-111.189617,44.571062],[-111.182551,44.566874],[-111.175747,44.552219],[-111.166892,44.54722],[-111.15959,44.546376],[-111.143557,44.535732],[-111.139455,44.517112],[-111.131379,44.499925],[-111.122654,44.493659],[-111.062729,44.476073],[-111.048974,44.474072],[-111.049077,44.020072],[-111.046515,43.908376],[-111.044156,43.020052]]]},\"properties\":{\"name\":\"Idaho\",\"nation\":\"USA  \"}}]}","volume":"54","issue":"11-13","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a952ae4b0c8380cd81841","contributors":{"authors":[{"text":"Piper, D.Z.","contributorId":34154,"corporation":false,"usgs":false,"family":"Piper","given":"D.Z.","email":"","affiliations":[],"preferred":false,"id":429952,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Perkins, R.B.","contributorId":49501,"corporation":false,"usgs":true,"family":"Perkins","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":429953,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rowe, H.D.","contributorId":26135,"corporation":false,"usgs":true,"family":"Rowe","given":"H.D.","email":"","affiliations":[],"preferred":false,"id":429951,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031696,"text":"70031696 - 2007 - Petrology and tectonics of Phanerozoic continent formation: From island arcs to accretion and continental arc magmatism","interactions":[],"lastModifiedDate":"2023-07-12T11:22:01.220955","indexId":"70031696","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Petrology and tectonics of Phanerozoic continent formation: From island arcs to accretion and continental arc magmatism","docAbstract":"<p>Mesozoic continental arcs in the North American Cordillera were examined here to establish a baseline model for Phanerozoic continent formation. We combine new trace-element data on lower crustal xenoliths from the Mesozoic Sierra Nevada Batholith with an extensive grid-based geochemical map of the Peninsular Ranges Batholith, the southern equivalent of the Sierras. Collectively, these observations give a three-dimensional view of the crust, which permits the petrogenesis and tectonics of Phanerozoic crust formation to be linked in space and time. Subduction of the Farallon plate beneath North America during the Triassic to early Cretaceous was characterized by trench retreat and slab rollback because old and cold oceanic lithosphere was being subducted. This generated an extensional subduction zone, which created fringing island arcs just off the Paleozoic continental margin. However, as the age of the Farallon plate at the time of subduction decreased, the extensional environment waned, allowing the fringing island arc to accrete onto the continental margin. With continued subduction, a continental arc was born and a progressively more compressional environment developed as the age of subducting slab continued to young. Refinement into a felsic crust occurred after accretion, that is, during the continental arc stage, wherein a thickened crustal and lithospheric column permitted a longer differentiation column. New basaltic arc magmas underplate and intrude the accreted terrane, suture, and former continental margin. Interaction of these basaltic magmas with pre-existing crust and lithospheric mantle created garnet pyroxenitic mafic cumulates by fractional crystallization at depth as well as gabbroic and garnet pyroxenitic restites at shallower levels by melting of pre-existing lower crust. The complementary felsic plutons formed by these deep-seated differentiation processes rose into the upper crust, stitching together the accreted terrane, suture and former continental margin. The mafic cumulates and restites, owing to their high densities, eventually foundered into the mantle, leaving behind a more felsic crust. Our grid-based sampling allows us to estimate an unbiased average upper crustal composition for the Peninsular Ranges Batholith. Major and trace-element compositions are very similar to global continental crust averaged over space and time, but in detail, the Peninsular Ranges are slightly lower in compatible to mildly incompatible elements, MgO, Mg#, V, Sc, Co, and Cr. The compositional similarities suggest a strong arc component in global continental crust, but the slight discrepancies suggest that additional crust formation processes are also important in continent formation as a whole. Finally, the delaminated Sierran garnet pyroxenites have some of the lowest U/Pb ratios ever measured for silicate rocks. Such material, if recycled and stored in the deep mantle, would generate a reservoir with very unradiogenic Pb, providing one solution to the global Pb isotope paradox.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.epsl.2007.09.025","issn":"0012821X","usgsCitation":"Lee, C., Morton, D.M., Kistler, R.W., and Baird, A.K., 2007, Petrology and tectonics of Phanerozoic continent formation: From island arcs to accretion and continental arc magmatism: Earth and Planetary Science Letters, v. 263, no. 3-4, p. 370-387, https://doi.org/10.1016/j.epsl.2007.09.025.","productDescription":"18 p.","startPage":"370","endPage":"387","numberOfPages":"18","costCenters":[],"links":[{"id":240007,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"263","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a782be4b0c8380cd7865b","contributors":{"authors":[{"text":"Lee, C.-T.A.","contributorId":20549,"corporation":false,"usgs":true,"family":"Lee","given":"C.-T.A.","email":"","affiliations":[],"preferred":false,"id":432729,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morton, D. M.","contributorId":54608,"corporation":false,"usgs":true,"family":"Morton","given":"D.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":432731,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kistler, R. W.","contributorId":36112,"corporation":false,"usgs":true,"family":"Kistler","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":432730,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Baird, A. K.","contributorId":65148,"corporation":false,"usgs":true,"family":"Baird","given":"A.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":432732,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031085,"text":"70031085 - 2007 - Revisiting the cape cod bacteria injection experiment using a stochastic modeling approach","interactions":[],"lastModifiedDate":"2018-10-17T11:32:08","indexId":"70031085","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Revisiting the cape cod bacteria injection experiment using a stochastic modeling approach","docAbstract":"<p>Bromide and resting-cell bacteria tracer tests conducted in a sandy aquifer at the U.S. Geological Survey Cape Cod site in 1987 were reinterpreted using a three-dimensional stochastic approach. Bacteria transport was coupled to colloid filtration theory through functional dependence of local-scale colloid transport parameters upon hydraulic conductivity and seepage velocity in a stochastic advection - dispersion/attachment - detachment model. Geostatistical information on the hydraulic conductivity (K) field that was unavailable at the time of the original test was utilized as input. Using geostatistical parameters, a groundwater flow and particle-tracking model of conservative solute transport was calibrated to the bromide-tracer breakthrough data. An optimization routine was employed over 100 realizations to adjust the mean and variance ofthe natural-logarithm of hydraulic conductivity (InK) field to achieve best fit of a simulated, average bromide breakthrough curve. A stochastic particle-tracking model for the bacteria was run without adjustments to the local-scale colloid transport parameters. Good predictions of mean bacteria breakthrough were achieved using several approaches for modeling components of the system. Simulations incorporating the recent Tufenkji and Elimelech (Environ. Sci. Technol. 2004, 38, 529-536) correlation equation for estimating single collector efficiency were compared to those using the older Rajagopalan and Tien (AIChE J. 1976, 22, 523-533) model. Both appeared to work equally well at predicting mean bacteria breakthrough using a constant mean bacteria diameter for this set of field conditions. Simulations using a distribution of bacterial cell diameters available from original field notes yielded a slight improvement in the model and data agreement compared to simulations using an average bacterial diameter. The stochastic approach based on estimates of local-scale parameters for the bacteria-transport process reasonably captured the mean bacteria transport behavior and calculated an envelope of uncertainty that bracketed the observations in most simulation cases.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Chemical Society","doi":"10.1021/es062693a","issn":"0013936X","usgsCitation":"Maxwell, R.M., Welty, C., and Harvey, R.W., 2007, Revisiting the cape cod bacteria injection experiment using a stochastic modeling approach: Environmental Science & Technology, v. 41, no. 15, p. 5548-5558, https://doi.org/10.1021/es062693a.","productDescription":"11 p.","startPage":"5548","endPage":"5558","numberOfPages":"11","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":486982,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://figshare.com/articles/journal_contribution/Revisiting_the_Cape_Cod_Bacteria_Injection_Experiment_Using_a_Stochastic_Modeling_Approach/2993503","text":"External Repository"},{"id":239045,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211703,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es062693a"}],"country":"United States","state":"Massachusetts","otherGeospatial":"Cape Cod","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -70.69427490234375,\n              41.509605687197975\n            ],\n            [\n              -70.69427490234375,\n              42.10943017110108\n            ],\n            [\n              -69.90463256835938,\n              42.10943017110108\n            ],\n            [\n              -69.90463256835938,\n              41.509605687197975\n            ],\n            [\n              -70.69427490234375,\n              41.509605687197975\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"41","issue":"15","noUsgsAuthors":false,"publicationDate":"2007-06-30","publicationStatus":"PW","scienceBaseUri":"505aad2de4b0c8380cd86e4e","contributors":{"authors":[{"text":"Maxwell, Reed M.","contributorId":95373,"corporation":false,"usgs":true,"family":"Maxwell","given":"Reed","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":429956,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Welty, Claire","contributorId":39416,"corporation":false,"usgs":true,"family":"Welty","given":"Claire","email":"","affiliations":[],"preferred":false,"id":429957,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harvey, Ronald W. 0000-0002-2791-8503 rwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2791-8503","contributorId":564,"corporation":false,"usgs":true,"family":"Harvey","given":"Ronald","email":"rwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":429955,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70029701,"text":"70029701 - 2007 - Hierarchical spatiotemporal matrix models for characterizing invasions","interactions":[],"lastModifiedDate":"2013-02-23T08:47:12","indexId":"70029701","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1039,"text":"Biometrics","active":true,"publicationSubtype":{"id":10}},"title":"Hierarchical spatiotemporal matrix models for characterizing invasions","docAbstract":"The growth and dispersal of biotic organisms is an important subject in ecology. Ecologists are able to accurately describe survival and fecundity in plant and animal populations and have developed quantitative approaches to study the dynamics of dispersal and population size. Of particular interest are the dynamics of invasive species. Such nonindigenous animals and plants can levy significant impacts on native biotic communities. Effective models for relative abundance have been developed; however, a better understanding of the dynamics of actual population size (as opposed to relative abundance) in an invasion would be beneficial to all branches of ecology. In this article, we adopt a hierarchical Bayesian framework for modeling the invasion of such species while addressing the discrete nature of the data and uncertainty associated with the probability of detection. The nonlinear dynamics between discrete time points are intuitively modeled through an embedded deterministic population model with density-dependent growth and dispersal components. Additionally, we illustrate the importance of accommodating spatially varying dispersal rates. The method is applied to the specific case of the Eurasian Collared-Dove, an invasive species at mid-invasion in the United States at the time of this writing. ?? 2006, The International Biometric Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biometrics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1541-0420.2006.00725.x","issn":"0006341X","usgsCitation":"Hooten, M., Wikle, C.K., Dorazio, R., and Royle, J., 2007, Hierarchical spatiotemporal matrix models for characterizing invasions: Biometrics, v. 63, no. 2, https://doi.org/10.1111/j.1541-0420.2006.00725.x.","costCenters":[],"links":[{"id":240414,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212857,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1541-0420.2006.00725.x"}],"volume":"63","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-01-23","publicationStatus":"PW","scienceBaseUri":"505a30a6e4b0c8380cd5d815","contributors":{"authors":[{"text":"Hooten, M.B.","contributorId":50261,"corporation":false,"usgs":true,"family":"Hooten","given":"M.B.","email":"","affiliations":[],"preferred":false,"id":423917,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wikle, C. K.","contributorId":57975,"corporation":false,"usgs":true,"family":"Wikle","given":"C.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":423918,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dorazio, R.M. 0000-0003-2663-0468","orcid":"https://orcid.org/0000-0003-2663-0468","contributorId":23475,"corporation":false,"usgs":true,"family":"Dorazio","given":"R.M.","affiliations":[],"preferred":false,"id":423916,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Royle, J. Andrew 0000-0003-3135-2167","orcid":"https://orcid.org/0000-0003-3135-2167","contributorId":96221,"corporation":false,"usgs":true,"family":"Royle","given":"J. Andrew","affiliations":[],"preferred":false,"id":423919,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031685,"text":"70031685 - 2007 - Local and regional factors affecting atmospheric mercury speciation at a remote location","interactions":[],"lastModifiedDate":"2018-10-16T11:18:36","indexId":"70031685","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2256,"text":"Journal of Environmental Engineering and Science","active":true,"publicationSubtype":{"id":10}},"title":"Local and regional factors affecting atmospheric mercury speciation at a remote location","docAbstract":"<p>Atmospheric concentrations of elemental (Hg0), reactive gaseous (RGM), and particulate (PHg) mercury were measured at two remote sites in the midwestern United States. Concurrent measurements of Hg0, PHg, and RGM obtained at Devil's Lake and Mt. Horeb, located approximately 65 km apart, showed that Hg0 and PHg concentrations were affected by regional, as well as local sources, while RGM was mainly impacted by local sources. Plumes reaching the Devil's Lake site from a nearby coal-fired power plant significantly impacted SO2 and RGM concentrations at Devil's Lake, but had little impact on Hg0. Our findings suggest that traditional modeling approaches to assess sources of mercury deposited that utilize source emissions and large-scale grids may not be sufficient to predict mercury deposition at sensitive locations due to the importance of small-scale sources and processes. We suggest the use of a receptor-based monitoring to better understand mercury source-receptor relationships.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Environmental Engineering and Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/S07-005","issn":"14962551","usgsCitation":"Manolopoulos, H., Schauer, J., Purcell, M., Rudolph, T., Olson, M.L., Rodger, B., and Krabbenhoft, D., 2007, Local and regional factors affecting atmospheric mercury speciation at a remote location: Journal of Environmental Engineering and Science, v. 6, no. 5, p. 491-501, https://doi.org/10.1139/S07-005.","productDescription":"11 p.","startPage":"491","endPage":"501","numberOfPages":"11","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":239835,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212362,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/S07-005"}],"country":"United States","state":"Wisconsin","volume":"6","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a48d7e4b0c8380cd6817a","contributors":{"authors":[{"text":"Manolopoulos, H.","contributorId":74573,"corporation":false,"usgs":true,"family":"Manolopoulos","given":"H.","email":"","affiliations":[],"preferred":false,"id":432688,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schauer, J.J.","contributorId":93262,"corporation":false,"usgs":true,"family":"Schauer","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":432690,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Purcell, M.D.","contributorId":104707,"corporation":false,"usgs":true,"family":"Purcell","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":432691,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rudolph, T.M.","contributorId":13803,"corporation":false,"usgs":true,"family":"Rudolph","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":432685,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Olson, Mark L.","contributorId":149743,"corporation":false,"usgs":false,"family":"Olson","given":"Mark","email":"","middleInitial":"L.","affiliations":[{"id":17808,"text":"University of Illinois, Champaign","active":true,"usgs":false}],"preferred":false,"id":432686,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Rodger, B.","contributorId":28429,"corporation":false,"usgs":true,"family":"Rodger","given":"B.","email":"","affiliations":[],"preferred":false,"id":432687,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Krabbenhoft, David P. 0000-0003-1964-5020 dpkrabbe@usgs.gov","orcid":"https://orcid.org/0000-0003-1964-5020","contributorId":118001,"corporation":false,"usgs":true,"family":"Krabbenhoft","given":"David P.","email":"dpkrabbe@usgs.gov","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":false,"id":432689,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70031590,"text":"70031590 - 2007 - Characterisation and modelling of washover fans","interactions":[],"lastModifiedDate":"2014-08-22T14:16:01","indexId":"70031590","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Characterisation and modelling of washover fans","docAbstract":"<p>Pre- and post-storm topography and aerial photography, collected in regions where new washover fans were formed, were studied to determine the extent of morphologic, vegetative and anthropogenic control on washover shape and extent. When overwash is funnelled through a gap in a dune ridge and then spreads laterally on the back barrier, decelerating and depositing sediment, it forms washover fans. Fans were shown to primarily occur at pre-existing gaps in the foredune. During overwash, these gaps, or overwash throats, widened and deepened. The shape and extent of the fan was shown to depend on not only the pre-storm topography, but also the existence of beach tracks, roads and other anthropogenic influences and vegetation. The cross-shore overwash profile change model by Larson et al. and Donnelly et al. was modified to include pre-storm throat widths and a lateral spreading angle estimated from the pre-storm topography as inputs and tested using cross-shore profiles through the fan centres. These new inputs make the model more generalised, such that the calibrated model is applicable to a wider range of cross-shore profiles.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes","conferenceLocation":"New Orleans, LA","language":"English","publisher":"American Society of Civil Engineers","doi":"10.1061/40926(239)162","isbn":"0784409269; 9780784409268","usgsCitation":"Donnelly, C., and Sallenger, A., 2007, Characterisation and modelling of washover fans, <i>in</i> Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes, New Orleans, LA, p. 2061-2073, https://doi.org/10.1061/40926(239)162.","productDescription":"13 p.","startPage":"2061","endPage":"2073","numberOfPages":"13","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":212508,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/40926(239)162"},{"id":240001,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","scienceBaseUri":"5059f489e4b0c8380cd4bd94","contributors":{"authors":[{"text":"Donnelly, Chantal","contributorId":74955,"corporation":false,"usgs":true,"family":"Donnelly","given":"Chantal","email":"","affiliations":[],"preferred":false,"id":432240,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sallenger, Asbury H. Jr.","contributorId":27458,"corporation":false,"usgs":true,"family":"Sallenger","given":"Asbury H.","suffix":"Jr.","affiliations":[],"preferred":false,"id":432239,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031127,"text":"70031127 - 2007 - A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids","interactions":[],"lastModifiedDate":"2018-09-13T16:25:25","indexId":"70031127","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":664,"text":"Advances in Water Resources","active":true,"publicationSubtype":{"id":10}},"title":"A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids","docAbstract":"A flexible, robust method for linking parent (regional-scale) and child (local-scale) grids of locally refined models that use different numerical methods is developed based on a new, iterative ghost-node method. Tests are presented for two-dimensional and three-dimensional pumped systems that are homogeneous or that have simple heterogeneity. The parent and child grids are simulated using the block-centered finite-difference MODFLOW and control-volume finite-element FEHM models, respectively. The models are solved iteratively through head-dependent (child model) and specified-flow (parent model) boundary conditions. Boundary conditions for models with nonmatching grids or zones of different hydraulic conductivity are derived and tested against heads and flows from analytical or globally-refined models. Results indicate that for homogeneous two- and three-dimensional models with matched grids (integer number of child cells per parent cell), the new method is nearly as accurate as the coupling of two MODFLOW models using the shared-node method and, surprisingly, errors are slightly lower for nonmatching grids (noninteger number of child cells per parent cell). For heterogeneous three-dimensional systems, this paper compares two methods for each of the two sets of boundary conditions: external heads at head-dependent boundary conditions for the child model are calculated using bilinear interpolation or a Darcy-weighted interpolation; specified-flow boundary conditions for the parent model are calculated using model-grid or hydrogeologic-unit hydraulic conductivities. Results suggest that significantly more accurate heads and flows are produced when both Darcy-weighted interpolation and hydrogeologic-unit hydraulic conductivities are used, while the other methods produce larger errors at the boundary between the regional and local models. The tests suggest that, if posed correctly, the ghost-node method performs well. Additional testing is needed for highly heterogeneous systems. ?? 2007 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Advances in Water Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.advwatres.2007.01.004","issn":"03091708","usgsCitation":"Dickinson, J., James, S., Mehl, S., Hill, M.C., Leake, S.A., Zyvoloski, G., Faunt, C., and Eddebbarh, A., 2007, A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids: Advances in Water Resources, v. 30, no. 8, p. 1722-1736, https://doi.org/10.1016/j.advwatres.2007.01.004.","startPage":"1722","endPage":"1736","numberOfPages":"15","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":238616,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211342,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.advwatres.2007.01.004"}],"volume":"30","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e4a2e4b0c8380cd467b5","contributors":{"authors":[{"text":"Dickinson, J.E.","contributorId":28790,"corporation":false,"usgs":true,"family":"Dickinson","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":430156,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"James, S.C.","contributorId":103059,"corporation":false,"usgs":true,"family":"James","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":430160,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mehl, S.","contributorId":20114,"corporation":false,"usgs":true,"family":"Mehl","given":"S.","affiliations":[],"preferred":false,"id":430154,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hill, M. C.","contributorId":48993,"corporation":false,"usgs":true,"family":"Hill","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":430157,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Leake, S. A.","contributorId":52164,"corporation":false,"usgs":true,"family":"Leake","given":"S.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430158,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zyvoloski, G.A.","contributorId":20123,"corporation":false,"usgs":true,"family":"Zyvoloski","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":430155,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Faunt, C.C. 0000-0001-5659-7529","orcid":"https://orcid.org/0000-0001-5659-7529","contributorId":103314,"corporation":false,"usgs":true,"family":"Faunt","given":"C.C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":430161,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Eddebbarh, A.-A.","contributorId":101425,"corporation":false,"usgs":true,"family":"Eddebbarh","given":"A.-A.","email":"","affiliations":[],"preferred":false,"id":430159,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70031013,"text":"70031013 - 2007 - Deglacial climate variability in central Florida, USA","interactions":[],"lastModifiedDate":"2014-10-09T10:23:24","indexId":"70031013","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Deglacial climate variability in central Florida, USA","docAbstract":"<p>Pollen and ostracode evidence from lacustrine sediments underlying modern Tampa Bay, Florida, document frequent and abrupt climatic and hydrological events superimposed on deglacial warming in the subtropics. Radiocarbon chronology on well-preserved mollusk shells and pollen residue from core MD02-2579 documents continuous sedimentation in a variety of non-marine habitats in a karst-controlled basin from 20 ka to 11.5 ka.</p>\n<br>\n<p>During the last glacial maximum (LGM), much drier and cooler-than-modern conditions are indicated by pollen assemblages enriched in Chenopodiaceae and <i>Carya</i>, with rare <i>Pinus</i> (< 10%). <i>Pinus</i> pollen increased to 20–40% during the warming of the initial deglaciation (∼ 17.2 ka), reaching near modern abundance (60–80%) during warmer, moister climates of the Bølling/Allerød interval (14.7–12.9 ka). Within the Bølling/Allerød, centennial-scale dry events corresponding to the Older Dryas and Intra-Allerød Cold Period indicate rapid vegetation response (< 50 years) to climate variability. The Younger Dryas (12.9–11.6 ka) was characterized by two distinct phases: slightly drier than the peak Bølling/Allerød between 12.9 and 12.3 ka and much drier from 12.3 to 11.5 ka. The Tampa Bay record of deglacial atmospheric temperature and moisture can be correlated with other paleoclimate records in the North Atlantic region and has implications for climate-forcing by ice-sheet fluctuation, thermohaline circulation, and atmospheric circulation.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Palaeogeography, Palaeoclimatology, Palaeoecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.palaeo.2007.04.016","issn":"00310182","usgsCitation":"Willard, D., Bernhardt, C., Brooks, G.R., Cronin, T.M., Edgar, T., and Larson, R., 2007, Deglacial climate variability in central Florida, USA: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 251, no. 3-4, p. 366-382, https://doi.org/10.1016/j.palaeo.2007.04.016.","productDescription":"17 p.","startPage":"366","endPage":"382","numberOfPages":"17","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":211592,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.palaeo.2007.04.016"},{"id":238905,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Tampa Bay","volume":"251","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe51e4b0c8380cd4ec7c","contributors":{"authors":[{"text":"Willard, Debra  A. 0000-0003-4878-0942","orcid":"https://orcid.org/0000-0003-4878-0942","contributorId":85982,"corporation":false,"usgs":true,"family":"Willard","given":"Debra  A.","affiliations":[],"preferred":false,"id":429639,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bernhardt, C.E.","contributorId":65554,"corporation":false,"usgs":true,"family":"Bernhardt","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":429637,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brooks, G. R.","contributorId":96312,"corporation":false,"usgs":true,"family":"Brooks","given":"G.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":429640,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cronin, T. M. 0000-0002-2643-0979","orcid":"https://orcid.org/0000-0002-2643-0979","contributorId":42613,"corporation":false,"usgs":true,"family":"Cronin","given":"T.","email":"","middleInitial":"M.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":false,"id":429636,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Edgar, T.","contributorId":70595,"corporation":false,"usgs":true,"family":"Edgar","given":"T.","email":"","affiliations":[],"preferred":false,"id":429638,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Larson, R.","contributorId":30438,"corporation":false,"usgs":true,"family":"Larson","given":"R.","affiliations":[],"preferred":false,"id":429635,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70031739,"text":"70031739 - 2007 - Comparison of local- to regional-scale estimates of ground-water recharge in Minnesota, USA","interactions":[],"lastModifiedDate":"2023-10-03T11:20:41.383437","indexId":"70031739","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of local- to regional-scale estimates of ground-water recharge in Minnesota, USA","docAbstract":"<p><span>Regional ground-water recharge estimates for Minnesota were compared to estimates made on the basis of four local- and basin-scale methods. Three local-scale methods (unsaturated-zone water balance, water-table fluctuations (WTF) using three approaches, and age dating of ground water) yielded point estimates of recharge that represent spatial scales from about 1 to about 1000&nbsp;m</span><sup>2</sup><span>. A fourth method (RORA, a basin-scale analysis of streamflow records using a recession-curve-displacement technique) yielded recharge estimates at a scale of 10&ndash;1000s of km</span><sup>2</sup><span>. The RORA basin-scale recharge estimates were regionalized to estimate recharge for the entire State of Minnesota on the basis of a regional regression recharge (RRR) model that also incorporated soil and climate data. Recharge rates estimated by the RRR model compared favorably to the local and basin-scale recharge estimates. RRR estimates at study locations were about 41% less on average than the unsaturated-zone water-balance estimates, ranged from 44% greater to 12% less than estimates that were based on the three WTF approaches, were about 4% less than the age dating of ground-water estimates, and were about 5% greater than the RORA estimates. Of the methods used in this study, the WTF method is the simplest and easiest to apply. Recharge estimates made on the basis of the UZWB method were inconsistent with the results from the other methods. Recharge estimates using the RRR model could be a good source of input for regional ground-water flow models; RRR model results currently are being applied for this purpose in USGS studies elsewhere.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jhydrol.2006.10.010","issn":"00221694","usgsCitation":"Delin, G., Healy, R.W., Lorenz, D., and Nimmo, J., 2007, Comparison of local- to regional-scale estimates of ground-water recharge in Minnesota, USA: Journal of Hydrology, v. 334, no. 1-2, p. 231-249, https://doi.org/10.1016/j.jhydrol.2006.10.010.","productDescription":"19 p.","startPage":"231","endPage":"249","numberOfPages":"19","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":239641,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-92.204691,46.704041],[-92.205192,46.698341],[-92.183091,46.695241],[-92.176091,46.686341],[-92.204092,46.666941],[-92.201592,46.656641],[-92.207092,46.651941],[-92.242493,46.649241],[-92.256592,46.658741],[-92.270592,46.650741],[-92.274392,46.657441],[-92.286192,46.660342],[-92.287392,46.667342],[-92.291292,46.668142],[-92.292192,46.663308],[-92.294033,46.074377],[-92.332912,46.062697],[-92.35176,46.015685],[-92.372717,46.014198],[-92.410649,46.027259],[-92.428555,46.024241],[-92.442259,46.016177],[-92.453373,45.992913],[-92.464512,45.985038],[-92.461138,45.980216],[-92.469354,45.973811],[-92.527052,45.983245],[-92.548459,45.969056],[-92.551186,45.95224],[-92.60246,45.940815],[-92.614314,45.934529],[-92.638824,45.934166],[-92.638474,45.925971],[-92.659549,45.922937],[-92.676167,45.912072],[-92.675737,45.907478],[-92.707702,45.894901],[-92.734039,45.868108],[-92.739278,45.84758],[-92.765146,45.830183],[-92.757815,45.806574],[-92.776496,45.790014],[-92.784621,45.764196],[-92.809837,45.744172],[-92.869193,45.717568],[-92.870025,45.697272],[-92.875488,45.689014],[-92.887929,45.639006],[-92.882529,45.610216],[-92.886442,45.598679],[-92.883749,45.575483],[-92.871082,45.567581],[-92.823309,45.560934],[-92.770223,45.566939],[-92.726082,45.541112],[-92.726677,45.514462],[-92.702224,45.493046],[-92.680234,45.464344],[-92.653549,45.455346],[-92.646602,45.441635],[-92.650422,45.398507],[-92.664102,45.393309],[-92.676961,45.380137],[-92.678223,45.373604],[-92.70272,45.358472],[-92.698967,45.336374],[-92.709968,45.321302],[-92.737122,45.300459],[-92.761013,45.289028],[-92.760615,45.278827],[-92.751659,45.26591],[-92.760249,45.2496],[-92.751708,45.218666],[-92.763908,45.204866],[-92.767408,45.190166],[-92.764872,45.182812],[-92.752404,45.173916],[-92.757707,45.155466],[-92.739584,45.115598],[-92.744938,45.108309],[-92.791528,45.079647],[-92.803079,45.060978],[-92.793282,45.047178],[-92.770362,45.033803],[-92.76206,45.02432],[-92.771231,45.001378],[-92.769445,44.97215],[-92.754603,44.955767],[-92.750645,44.937299],[-92.758701,44.908979],[-92.774571,44.898084],[-92.773946,44.889997],[-92.764133,44.875905],[-92.769102,44.862167],[-92.765278,44.837186],[-92.78043,44.812589],[-92.785206,44.792303],[-92.805287,44.768361],[-92.807988,44.75147],[-92.787906,44.737432],[-92.737259,44.717155],[-92.700948,44.693751],[-92.660988,44.660884],[-92.632105,44.649027],[-92.619779,44.634195],[-92.621456,44.615017],[-92.601516,44.612052],[-92.586216,44.600088],[-92.569434,44.603539],[-92.549777,44.58113],[-92.549957,44.568988],[-92.540551,44.567258],[-92.518358,44.575183],[-92.493808,44.566063],[-92.481001,44.568276],[-92.455105,44.561886],[-92.433256,44.5655],[-92.399281,44.558292],[-92.361518,44.558935],[-92.336114,44.554004],[-92.314071,44.538014],[-92.302466,44.516487],[-92.302215,44.500298],[-92.291005,44.485464],[-92.232472,44.445434],[-92.195378,44.433792],[-92.124513,44.422115],[-92.111085,44.413948],[-92.078605,44.404869],[-92.056486,44.402729],[-92.038147,44.388731],[-91.970266,44.365842],[-91.941311,44.340978],[-91.92559,44.333548],[-91.918625,44.322671],[-91.913534,44.311392],[-91.924613,44.291815],[-91.896388,44.27469],[-91.896008,44.262871],[-91.88704,44.251772],[-91.892698,44.231105],[-91.877429,44.212921],[-91.872369,44.199167],[-91.829167,44.17835],[-91.808064,44.159262],[-91.751747,44.134786],[-91.721552,44.130342],[-91.710597,44.12048],[-91.708207,44.105186],[-91.69531,44.09857],[-91.68153,44.0974],[-91.667006,44.086964],[-91.647873,44.064109],[-91.638115,44.063285],[-91.610487,44.04931],[-91.59207,44.031372],[-91.507121,44.01898],[-91.48087,44.008145],[-91.463515,44.009041],[-91.432522,43.996827],[-91.407395,43.965148],[-91.385785,43.954239],[-91.366642,43.937463],[-91.357426,43.917231],[-91.347741,43.911964],[-91.338141,43.897664],[-91.320605,43.888491],[-91.310991,43.867381],[-91.284138,43.847065],[-91.262436,43.792166],[-91.244135,43.774667],[-91.255431,43.744876],[-91.255932,43.729849],[-91.268455,43.709824],[-91.273252,43.666623],[-91.271749,43.654929],[-91.262397,43.64176],[-91.268748,43.615348],[-91.232707,43.583533],[-91.232812,43.564842],[-91.243214,43.550722],[-91.243183,43.540309],[-91.232941,43.523967],[-91.218292,43.514434],[-91.217706,43.50055],[-96.453049,43.500415],[-96.453067,45.298115],[-96.489065,45.357071],[-96.521787,45.375645],[-96.562142,45.38609],[-96.617726,45.408092],[-96.680454,45.410499],[-96.692541,45.417338],[-96.731396,45.45702],[-96.76528,45.521414],[-96.857751,45.605962],[-96.844211,45.639583],[-96.835769,45.649648],[-96.760866,45.687518],[-96.745086,45.701576],[-96.662595,45.738682],[-96.641941,45.759871],[-96.627778,45.786239],[-96.583085,45.820024],[-96.574517,45.843098],[-96.561334,45.945655],[-96.57035,45.963595],[-96.57794,46.026874],[-96.559271,46.058272],[-96.554507,46.083978],[-96.557952,46.102442],[-96.56692,46.11475],[-96.563043,46.119512],[-96.571439,46.12572],[-96.56926,46.133686],[-96.579453,46.147601],[-96.577952,46.165843],[-96.587408,46.178164],[-96.584372,46.204155],[-96.59755,46.227733],[-96.598645,46.241626],[-96.590942,46.250183],[-96.59887,46.26069],[-96.595014,46.275135],[-96.60136,46.30413],[-96.599761,46.330386],[-96.619991,46.340135],[-96.618147,46.344295],[-96.629211,46.352654],[-96.644335,46.351908],[-96.646341,46.360982],[-96.655206,46.365964],[-96.658436,46.373391],[-96.666028,46.374566],[-96.669132,46.390037],[-96.680687,46.407383],[-96.688082,46.40788],[-96.701358,46.420584],[-96.703078,46.429467],[-96.718074,46.438255],[-96.715557,46.463232],[-96.73627,46.48138],[-96.737798,46.489785],[-96.733612,46.497224],[-96.737702,46.50077],[-96.738475,46.525793],[-96.744341,46.533006],[-96.743003,46.54294],[-96.74883,46.558127],[-96.744436,46.56596],[-96.746442,46.574078],[-96.772446,46.600129],[-96.774094,46.613288],[-96.78995,46.631531],[-96.790663,46.649112],[-96.798823,46.658071],[-96.792958,46.677427],[-96.784339,46.685054],[-96.790906,46.70297],[-96.779252,46.727429],[-96.784279,46.732993],[-96.781216,46.740944],[-96.787466,46.756753],[-96.784314,46.766973],[-96.796195,46.789881],[-96.795756,46.807795],[-96.801446,46.810401],[-96.80016,46.819664],[-96.787657,46.827817],[-96.789663,46.832306],[-96.779347,46.843672],[-96.781358,46.879363],[-96.768458,46.879563],[-96.767358,46.883663],[-96.773558,46.884763],[-96.776558,46.895663],[-96.759241,46.918223],[-96.761757,46.934663],[-96.78312,46.925482],[-96.79038,46.929398],[-96.791558,46.944464],[-96.797734,46.9464],[-96.798737,46.962399],[-96.821852,46.969372],[-96.82318,46.999965],[-96.834221,47.006671],[-96.829499,47.021537],[-96.818557,47.02778],[-96.821422,47.032842],[-96.819321,47.0529],[-96.824479,47.059682],[-96.818175,47.104193],[-96.827344,47.120144],[-96.824807,47.124968],[-96.831547,47.142017],[-96.822377,47.162744],[-96.829637,47.17497],[-96.826962,47.182802],[-96.838806,47.197894],[-96.832789,47.203911],[-96.838806,47.22502],[-96.832946,47.237588],[-96.83766,47.240876],[-96.835368,47.250428],[-96.841672,47.258164],[-96.838997,47.267716],[-96.842531,47.269531],[-96.844088,47.289981],[-96.832884,47.30449],[-96.841958,47.316907],[-96.835845,47.321014],[-96.835845,47.335914],[-96.852417,47.366241],[-96.848907,47.370565],[-96.852676,47.374973],[-96.846925,47.376891],[-96.840621,47.389881],[-96.845492,47.394179],[-96.844919,47.399815],[-96.863593,47.418775],[-96.85748,47.440457],[-96.859868,47.470926],[-96.85471,47.478281],[-96.85853,47.489934],[-96.851653,47.497098],[-96.851367,47.509037],[-96.866363,47.524893],[-96.85471,47.535973],[-96.859153,47.566355],[-96.853689,47.570381],[-96.856373,47.575749],[-96.851293,47.589264],[-96.856903,47.602329],[-96.855421,47.60875],[-96.873671,47.613654],[-96.871005,47.616832],[-96.879496,47.620576],[-96.882393,47.633489],[-96.888573,47.63845],[-96.882376,47.649025],[-96.88697,47.653049],[-96.887126,47.666369],[-96.895271,47.67357],[-96.899352,47.689473],[-96.908928,47.688722],[-96.907266,47.693976],[-96.920119,47.710383],[-96.923544,47.718201],[-96.919471,47.722515],[-96.932809,47.737139],[-96.928505,47.748037],[-96.934173,47.752412],[-96.939179,47.768397],[-96.9644,47.782995],[-96.957283,47.790147],[-96.966068,47.797297],[-96.975131,47.798326],[-96.980579,47.805614],[-96.979327,47.824533],[-96.986685,47.837639],[-96.998295,47.841724],[-96.998144,47.858882],[-97.005557,47.863977],[-97.002456,47.868677],[-97.023156,47.874978],[-97.019355,47.880278],[-97.024955,47.886878],[-97.019155,47.889778],[-97.024955,47.894978],[-97.020155,47.900478],[-97.024955,47.908178],[-97.017254,47.905678],[-97.015354,47.910278],[-97.023754,47.915878],[-97.018054,47.918078],[-97.035754,47.930179],[-97.036054,47.939379],[-97.054554,47.946279],[-97.052454,47.957179],[-97.061454,47.96358],[-97.053553,47.991612],[-97.064289,47.998508],[-97.066762,48.009558],[-97.063012,48.013179],[-97.072239,48.019107],[-97.068987,48.026267],[-97.072257,48.048068],[-97.097772,48.07108],[-97.103052,48.071669],[-97.099431,48.082106],[-97.105226,48.09044],[-97.104872,48.097851],[-97.109535,48.104723],[-97.123205,48.106648],[-97.120702,48.114987],[-97.131956,48.139563],[-97.141401,48.14359],[-97.138911,48.157793],[-97.146745,48.168556],[-97.141474,48.179099],[-97.146233,48.186054],[-97.134372,48.210434],[-97.136304,48.228984],[-97.141254,48.234668],[-97.135763,48.237596],[-97.138765,48.244991],[-97.127276,48.253323],[-97.131846,48.267589],[-97.11657,48.279661],[-97.12216,48.290056],[-97.128862,48.292882],[-97.122072,48.300865],[-97.132443,48.315489],[-97.127601,48.323319],[-97.134854,48.331314],[-97.131145,48.339722],[-97.147748,48.359905],[-97.140106,48.380479],[-97.145592,48.394195],[-97.135012,48.406735],[-97.142849,48.419471],[-97.1356,48.424369],[-97.139173,48.430528],[-97.134229,48.439797],[-97.137689,48.447583],[-97.132746,48.459942],[-97.144116,48.469212],[-97.141397,48.476256],[-97.144981,48.481571],[-97.140291,48.484722],[-97.138864,48.494362],[-97.148133,48.503384],[-97.153076,48.524148],[-97.150481,48.536877],[-97.163105,48.543855],[-97.160863,48.549236],[-97.152459,48.552326],[-97.158638,48.564067],[-97.149616,48.569876],[-97.14974,48.579516],[-97.142915,48.583733],[-97.143684,48.597066],[-97.137504,48.612268],[-97.132931,48.61338],[-97.130089,48.621166],[-97.125639,48.620919],[-97.125269,48.629694],[-97.108466,48.632658],[-97.111921,48.642918],[-97.100551,48.658614],[-97.102652,48.664793],[-97.097708,48.68395],[-97.118286,48.700573],[-97.116185,48.709348],[-97.136083,48.727763],[-97.139488,48.746611],[-97.151289,48.757428],[-97.147478,48.763698],[-97.154854,48.774515],[-97.157093,48.790024],[-97.163535,48.79507],[-97.165624,48.809627],[-97.180028,48.81845],[-97.177747,48.824815],[-97.181116,48.832741],[-97.173811,48.838309],[-97.175618,48.853105],[-97.187362,48.867598],[-97.185738,48.87222],[-97.197982,48.880341],[-97.197982,48.898332],[-97.210541,48.90439],[-97.211161,48.916649],[-97.217992,48.919735],[-97.218666,48.931781],[-97.224505,48.9341],[-97.232147,48.948955],[-97.230859,48.960891],[-97.239209,48.968684],[-97.237297,48.985696],[-97.230833,48.991303],[-97.229039,49.000687],[-95.153711,48.998903],[-95.15335,49.383079],[-95.126467,49.369439],[-95.058404,49.35317],[-95.014415,49.356405],[-94.988908,49.368897],[-94.957465,49.370186],[-94.854245,49.324154],[-94.816222,49.320987],[-94.824291,49.308834],[-94.82516,49.294283],[-94.797244,49.214284],[-94.797527,49.197791],[-94.773223,49.120733],[-94.750221,49.099763],[-94.750218,48.999992],[-94.718932,48.999991],[-94.683069,48.883929],[-94.684217,48.872399],[-94.692527,48.86895],[-94.693044,48.853392],[-94.685681,48.840119],[-94.701968,48.831778],[-94.704284,48.824284],[-94.694974,48.809206],[-94.694312,48.789352],[-94.690889,48.778066],[-94.651765,48.755913],[-94.645164,48.749975],[-94.645083,48.744143],[-94.61901,48.737374],[-94.58715,48.717599],[-94.549069,48.714653],[-94.533057,48.701262],[-94.452332,48.692444],[-94.438701,48.694889],[-94.416191,48.710948],[-94.384221,48.711806],[-94.342758,48.703382],[-94.308446,48.710239],[-94.290737,48.707747],[-94.260541,48.696381],[-94.251169,48.683514],[-94.254643,48.663888],[-94.250497,48.656654],[-94.224276,48.649527],[-94.091244,48.643669],[-94.065775,48.646104],[-94.035616,48.641018],[-94.006933,48.643193],[-93.944221,48.632294],[-93.91153,48.634673],[-93.840754,48.628548],[-93.824144,48.610724],[-93.806763,48.577616],[-93.811201,48.542385],[-93.818253,48.530046],[-93.794454,48.516021],[-93.656652,48.515731],[-93.643091,48.518294],[-93.628865,48.53121],[-93.612844,48.521876],[-93.60587,48.522472],[-93.594379,48.528793],[-93.547191,48.528684],[-93.467504,48.545664],[-93.460798,48.550552],[-93.456675,48.561834],[-93.465199,48.590659],[-93.438494,48.59338],[-93.405269,48.609344],[-93.395022,48.603303],[-93.371156,48.605085],[-93.362132,48.613832],[-93.35324,48.613378],[-93.349095,48.624935],[-93.254854,48.642784],[-93.207398,48.642474],[-93.178095,48.623339],[-93.088438,48.627597],[-92.984963,48.623731],[-92.954876,48.631493],[-92.95012,48.630419],[-92.949839,48.608269],[-92.929614,48.606874],[-92.909947,48.596313],[-92.894687,48.594915],[-92.728046,48.53929],[-92.657881,48.546263],[-92.634931,48.542873],[-92.625739,48.518189],[-92.631117,48.508252],[-92.627237,48.503383],[-92.636696,48.499428],[-92.654039,48.501635],[-92.661418,48.496557],[-92.698824,48.494892],[-92.712562,48.463013],[-92.687998,48.443889],[-92.656027,48.436709],[-92.507285,48.447875],[-92.475585,48.418793],[-92.456325,48.414204],[-92.456389,48.401134],[-92.47675,48.37176],[-92.469948,48.351836],[-92.437825,48.309839],[-92.416285,48.295463],[-92.369174,48.220268],[-92.336831,48.235383],[-92.269742,48.248241],[-92.273706,48.256747],[-92.294541,48.27156],[-92.292999,48.276404],[-92.301451,48.288608],[-92.294527,48.306454],[-92.306309,48.316442],[-92.304561,48.322977],[-92.295412,48.323957],[-92.288994,48.342991],[-92.26228,48.354933],[-92.222813,48.349203],[-92.216983,48.345114],[-92.206803,48.345596],[-92.203684,48.352063],[-92.178418,48.351881],[-92.177354,48.357228],[-92.145049,48.365651],[-92.143583,48.356121],[-92.083513,48.353865],[-92.077961,48.358253],[-92.055228,48.359213],[-92.045734,48.347901],[-92.046562,48.33474],[-92.037721,48.333183],[-92.030872,48.325824],[-92.000133,48.321355],[-92.01298,48.297391],[-92.006577,48.265421],[-91.989545,48.260214],[-91.976903,48.244626],[-91.971056,48.247667],[-91.971779,48.252977],[-91.954432,48.251678],[-91.952209,48.244394],[-91.957683,48.242683],[-91.957798,48.232989],[-91.941838,48.230602],[-91.915772,48.238871],[-91.89347,48.237699],[-91.884691,48.227321],[-91.867882,48.219095],[-91.864382,48.207031],[-91.815772,48.211748],[-91.809038,48.206013],[-91.79181,48.202492],[-91.789011,48.196549],[-91.756637,48.205022],[-91.749075,48.198844],[-91.741932,48.199122],[-91.742313,48.204491],[-91.714931,48.19913],[-91.711611,48.1891],[-91.721413,48.180255],[-91.724584,48.170657],[-91.705318,48.170775],[-91.70726,48.153661],[-91.698174,48.141643],[-91.699981,48.13184],[-91.712226,48.116883],[-91.703524,48.113548],[-91.682845,48.122118],[-91.687623,48.111698],[-91.676876,48.107264],[-91.665208,48.107011],[-91.653261,48.114137],[-91.653571,48.109567],[-91.640175,48.096926],[-91.559272,48.108268],[-91.552962,48.103012],[-91.569746,48.093348],[-91.575471,48.066294],[-91.575672,48.048791],[-91.567254,48.043719],[-91.488646,48.068065],[-91.45033,48.068806],[-91.437582,48.049248],[-91.429642,48.048608],[-91.391128,48.057075],[-91.370872,48.06941],[-91.365143,48.066968],[-91.340159,48.073236],[-91.332589,48.069331],[-91.26638,48.078713],[-91.214428,48.10294],[-91.190461,48.124891],[-91.183207,48.122235],[-91.176181,48.125811],[-91.137733,48.14915],[-91.139402,48.154738],[-91.092258,48.173101],[-91.082731,48.180756],[-91.024208,48.190072],[-90.976955,48.219452],[-90.914971,48.230603],[-90.88548,48.245784],[-90.875107,48.237784],[-90.847352,48.244443],[-90.839176,48.239511],[-90.836313,48.176963],[-90.832589,48.173765],[-90.821115,48.184709],[-90.817698,48.179569],[-90.804207,48.177833],[-90.796596,48.159373],[-90.777917,48.163801],[-90.778031,48.148723],[-90.79797,48.136894],[-90.787305,48.134196],[-90.789919,48.129902],[-90.76911,48.116585],[-90.761555,48.100133],[-90.751608,48.090968],[-90.641596,48.103515],[-90.626886,48.111846],[-90.59146,48.117546],[-90.582217,48.123784],[-90.55929,48.121683],[-90.555845,48.117069],[-90.569763,48.106951],[-90.567482,48.101178],[-90.556838,48.096008],[-90.487077,48.099082],[-90.467712,48.108818],[-90.438449,48.098747],[-90.403219,48.105114],[-90.374542,48.090942],[-90.367658,48.094577],[-90.344234,48.094447],[-90.330052,48.102399],[-90.312386,48.1053],[-90.289337,48.098993],[-90.224692,48.108148],[-90.188679,48.107947],[-90.176605,48.112445],[-90.136191,48.112136],[-90.116259,48.104303],[-90.073873,48.101138],[-90.023595,48.084708],[-90.015057,48.067188],[-90.008446,48.068396],[-89.997852,48.057567],[-89.99305,48.028404],[-89.97718,48.023501],[-89.968255,48.014482],[-89.954605,48.011516],[-89.95059,48.015901],[-89.934489,48.015628],[-89.915341,47.994866],[-89.897414,47.987599],[-89.873286,47.985419],[-89.868153,47.989898],[-89.847571,47.992442],[-89.842568,48.001368],[-89.830385,48.000284],[-89.820483,48.014665],[-89.797744,48.014505],[-89.763967,48.022969],[-89.724048,48.018996],[-89.721038,48.017965],[-89.724044,48.013675],[-89.716114,48.016441],[-89.716417,48.010251],[-89.702528,48.006325],[-89.673798,48.01151],[-89.667128,48.007421],[-89.657051,48.009954],[-89.649057,48.003853],[-89.617867,48.010947],[-89.611678,48.017529],[-89.607821,48.006566],[-89.594749,48.004332],[-89.582117,47.996314],[-89.564288,48.00293],[-89.489226,48.014528],[-89.495344,48.002356],[-89.541521,47.992841],[-89.551555,47.987305],[-89.555015,47.974849],[-89.572315,47.967238],[-89.58823,47.9662],[-89.611412,47.980731],[-89.624559,47.983153],[-89.631825,47.980039],[-89.640129,47.96793],[-89.638285,47.954275],[-89.697619,47.941288],[-89.793539,47.891358],[-89.85396,47.873997],[-89.87158,47.874194],[-89.923649,47.862062],[-89.930844,47.857723],[-89.92752,47.850825],[-89.933899,47.84676],[-89.974296,47.830514],[-90.072025,47.811105],[-90.075559,47.803303],[-90.1168,47.79538],[-90.16079,47.792807],[-90.178755,47.786414],[-90.187636,47.77813],[-90.248794,47.772763],[-90.323446,47.753771],[-90.332686,47.746387],[-90.437712,47.731612],[-90.441912,47.726404],[-90.458365,47.7214],[-90.537105,47.703055],[-90.551291,47.690266],[-90.735927,47.624343],[-90.86827,47.5569],[-90.907494,47.532873],[-90.914247,47.522639],[-90.939072,47.514532],[-91.032945,47.458236],[-91.045646,47.456525],[-91.097569,47.413888],[-91.128131,47.399619],[-91.146958,47.381464],[-91.156513,47.378816],[-91.188772,47.340082],[-91.238658,47.304976],[-91.262512,47.27929],[-91.288478,47.26596],[-91.326019,47.238993],[-91.357803,47.206743],[-91.418805,47.172152],[-91.477351,47.125667],[-91.497902,47.122579],[-91.518793,47.108121],[-91.573817,47.089917],[-91.591508,47.068684],[-91.626824,47.049953],[-91.644564,47.026491],[-91.666477,47.014297],[-91.704649,47.005246],[-91.780675,46.945881],[-91.806851,46.933727],[-91.841349,46.925215],[-91.883238,46.905728],[-91.914984,46.883836],[-91.952985,46.867037],[-92.094089,46.787839],[-92.088289,46.773639],[-92.06449,46.745439],[-92.025789,46.710839],[-92.01529,46.706469],[-92.020289,46.704039],[-92.03399,46.708939],[-92.08949,46.74924],[-92.10819,46.74914],[-92.13789,46.73954],[-92.14329,46.73464],[-92.141291,46.72524],[-92.146291,46.71594],[-92.167291,46.719941],[-92.189091,46.717541],[-92.204691,46.704041]]]},\"properties\":{\"name\":\"Minnesota\",\"nation\":\"USA  \"}}]}","volume":"334","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f870e4b0c8380cd4d0de","contributors":{"authors":[{"text":"Delin, G. N.","contributorId":12834,"corporation":false,"usgs":true,"family":"Delin","given":"G. N.","affiliations":[],"preferred":false,"id":432922,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Healy, R. W.","contributorId":89872,"corporation":false,"usgs":true,"family":"Healy","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":432924,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lorenz, D. L.","contributorId":10776,"corporation":false,"usgs":true,"family":"Lorenz","given":"D. L.","affiliations":[],"preferred":false,"id":432921,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nimmo, J. R. 0000-0001-8191-1727","orcid":"https://orcid.org/0000-0001-8191-1727","contributorId":58304,"corporation":false,"usgs":true,"family":"Nimmo","given":"J. R.","affiliations":[],"preferred":false,"id":432923,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031740,"text":"70031740 - 2007 - Ensuring confidence in radionuclide-based sediment chronologies and bioturbation rates","interactions":[],"lastModifiedDate":"2017-08-29T14:01:16","indexId":"70031740","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"Ensuring confidence in radionuclide-based sediment chronologies and bioturbation rates","docAbstract":"<p>Sedimentary records of naturally occurring and fallout-derived radionuclides are widely used as tools for estimating both the ages of recent sediments and rates of sedimentation and bioturbation. Developing these records to the point of data interpretation requires careful sample collection, processing, analysis and data modeling. In this work, we document a number of potential pitfalls that can impact sediment core records and their interpretation. This paper is not intended as an exhaustive treatment of these potential problems. Rather, the emphasis is on potential problems that are not well documented in the literature, as follows: (1) the mere sampling of sediment cores at a resolution that is too coarse can result in an apparent diffusive mixing of the sedimentary record at rates comparable to diffusive bioturbation rates observed in many locations; (2) <sup>210</sup>Pb profiles in slowly accumulating sediments can easily be misinterpreted to be driven by sedimentation, when in fact bioturbation is the dominant control. Multiple isotopes of different half lives and/or origin may help to distinguish between these two possible interpretations; (3) apparent mixing can occur due simply to numerical artifacts inherent in the finite difference approximations of the advection diffusion equation used to model sedimentation and bioturbation. Model users need to be aware of this potential problem. Solutions to each of these potential pitfalls are offered to ensure the best possible sediment age estimates and/or sedimentation and bioturbation rates can be obtained.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecss.2006.09.006","issn":"02727714","usgsCitation":"Crusius, J., and Kenna, T.C., 2007, Ensuring confidence in radionuclide-based sediment chronologies and bioturbation rates: Estuarine, Coastal and Shelf Science, v. 71, no. 3-4, p. 537-544, https://doi.org/10.1016/j.ecss.2006.09.006.","productDescription":"8 p.","startPage":"537","endPage":"544","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":477154,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/1603","text":"External Repository"},{"id":239642,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a097ee4b0c8380cd51f43","contributors":{"authors":[{"text":"Crusius, John 0000-0003-2554-0831 jcrusius@usgs.gov","orcid":"https://orcid.org/0000-0003-2554-0831","contributorId":2155,"corporation":false,"usgs":true,"family":"Crusius","given":"John","email":"jcrusius@usgs.gov","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":432925,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kenna, Timothy C.","contributorId":36754,"corporation":false,"usgs":true,"family":"Kenna","given":"Timothy","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":432926,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031682,"text":"70031682 - 2007 - Evaluating planetary digital terrain models-The HRSC DTM test","interactions":[],"lastModifiedDate":"2018-12-07T15:14:55","indexId":"70031682","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3083,"text":"Planetary and Space Science","active":true,"publicationSubtype":{"id":10}},"title":"Evaluating planetary digital terrain models-The HRSC DTM test","docAbstract":"<p>The High Resolution Stereo Camera (HRSC) has been orbiting the planet Mars since January 2004 onboard the European Space Agency (ESA) Mars Express mission and delivers imagery which is being used for topographic mapping of the planet. The HRSC team has conducted a systematic inter-comparison of different alternatives for the production of high resolution digital terrain models (DTMs) from the multi look HRSC push broom imagery. Based on carefully chosen test sites the test participants have produced DTMs which have been subsequently analysed in a quantitative and a qualitative manner. This paper reports on the results obtained in this test.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Planetary and Space Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.pss.2007.07.006","issn":"00320633","usgsCitation":"Heipke, C., Oberst, J., Albertz, J., Attwenger, M., Dorninger, P., Dorrer, E., Ewe, M., Gehrke, S., Gwinner, K., Hirschmuller, H., Kim, J., Kirk, R.L., Mayer, H., Muller, J., Rengarajan, R., Rentsch, M., Schmidt, R., Scholten, F., Shan, J., Spiegel, M., Wahlisch, M., and Neukum, G., 2007, Evaluating planetary digital terrain models-The HRSC DTM test: Planetary and Space Science, v. 55, no. 14, p. 2173-2191, https://doi.org/10.1016/j.pss.2007.07.006.","productDescription":"19 p.","startPage":"2173","endPage":"2191","numberOfPages":"19","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":477132,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://elib.dlr.de/52992/1/Hirschm%C3%BCllerHRSCHeipkeEtal2007.pdf","text":"External Repository"},{"id":239772,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"55","issue":"14","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0bede4b0c8380cd52948","contributors":{"authors":[{"text":"Heipke, C.","contributorId":46298,"corporation":false,"usgs":true,"family":"Heipke","given":"C.","affiliations":[],"preferred":false,"id":432660,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Oberst, J.","contributorId":103427,"corporation":false,"usgs":true,"family":"Oberst","given":"J.","email":"","affiliations":[],"preferred":false,"id":432671,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Albertz, J.","contributorId":9464,"corporation":false,"usgs":true,"family":"Albertz","given":"J.","affiliations":[],"preferred":false,"id":432652,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Attwenger, M.","contributorId":102276,"corporation":false,"usgs":true,"family":"Attwenger","given":"M.","affiliations":[],"preferred":false,"id":432670,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dorninger, P.","contributorId":11830,"corporation":false,"usgs":true,"family":"Dorninger","given":"P.","affiliations":[],"preferred":false,"id":432653,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dorrer, E.","contributorId":68056,"corporation":false,"usgs":true,"family":"Dorrer","given":"E.","affiliations":[],"preferred":false,"id":432664,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ewe, M.","contributorId":20974,"corporation":false,"usgs":true,"family":"Ewe","given":"M.","email":"","affiliations":[],"preferred":false,"id":432654,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gehrke, S.","contributorId":59246,"corporation":false,"usgs":true,"family":"Gehrke","given":"S.","email":"","affiliations":[],"preferred":false,"id":432662,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Gwinner, K.","contributorId":83737,"corporation":false,"usgs":true,"family":"Gwinner","given":"K.","affiliations":[],"preferred":false,"id":432667,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Hirschmuller, H.","contributorId":26881,"corporation":false,"usgs":true,"family":"Hirschmuller","given":"H.","email":"","affiliations":[],"preferred":false,"id":432656,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Kim, J.R.","contributorId":77363,"corporation":false,"usgs":true,"family":"Kim","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":432665,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Kirk, Randolph L. 0000-0003-0842-9226 rkirk@usgs.gov","orcid":"https://orcid.org/0000-0003-0842-9226","contributorId":2765,"corporation":false,"usgs":true,"family":"Kirk","given":"Randolph","email":"rkirk@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":432668,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Mayer, H.","contributorId":108255,"corporation":false,"usgs":true,"family":"Mayer","given":"H.","email":"","affiliations":[],"preferred":false,"id":432673,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Muller, Jan-Peter","contributorId":26882,"corporation":false,"usgs":true,"family":"Muller","given":"Jan-Peter","email":"","affiliations":[],"preferred":false,"id":432657,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Rengarajan, R. 0000-0003-1860-7110","orcid":"https://orcid.org/0000-0003-1860-7110","contributorId":56036,"corporation":false,"usgs":true,"family":"Rengarajan","given":"R.","affiliations":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":432661,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Rentsch, M.","contributorId":81312,"corporation":false,"usgs":true,"family":"Rentsch","given":"M.","email":"","affiliations":[],"preferred":false,"id":432666,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Schmidt, R.","contributorId":38777,"corporation":false,"usgs":true,"family":"Schmidt","given":"R.","affiliations":[],"preferred":false,"id":432659,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Scholten, F.","contributorId":100175,"corporation":false,"usgs":true,"family":"Scholten","given":"F.","email":"","affiliations":[],"preferred":false,"id":432669,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Shan, J.","contributorId":33532,"corporation":false,"usgs":true,"family":"Shan","given":"J.","email":"","affiliations":[],"preferred":false,"id":432658,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Spiegel, M.","contributorId":26515,"corporation":false,"usgs":true,"family":"Spiegel","given":"M.","email":"","affiliations":[],"preferred":false,"id":432655,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Wahlisch, M.","contributorId":62831,"corporation":false,"usgs":true,"family":"Wahlisch","given":"M.","affiliations":[],"preferred":false,"id":432663,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Neukum, G.","contributorId":105443,"corporation":false,"usgs":true,"family":"Neukum","given":"G.","email":"","affiliations":[],"preferred":false,"id":432672,"contributorType":{"id":1,"text":"Authors"},"rank":22}]}}
,{"id":70032727,"text":"70032727 - 2007 - Hydrologic response of the Crow Wing Watershed, Minnesota, to mid-Holocene climate change","interactions":[],"lastModifiedDate":"2012-03-12T17:21:24","indexId":"70032727","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic response of the Crow Wing Watershed, Minnesota, to mid-Holocene climate change","docAbstract":"In this study, we have integrated a suite of Holocene paleoclimatic proxies with mathematical modeling in an attempt to obtain a comprehensive picture of how watersheds respond to past climate change. A three-dimensional surface-water-groundwater model was developed to assess the effects of mid-Holocene climate change on water resources within the Crow Wing Watershed, Upper Mississippi Basin in north central Minnesota. The model was first calibrated to a 50 yr historical record of average annual surface-water discharge, monthly groundwater levels, and lake-level fluctuations. The model was able to reproduce reasonably well long-term historical records (1949-1999) of water-table and lake-level fluctuations across the watershed as well as stream discharge near the watershed outlet. The calibrated model was then used to reproduce paleogroundwater and lake levels using climate reconstructions based on pollen-transfer functions from Williams Lake just outside the watershed. Computed declines in mid-Holocene lake levels for two lakes at opposite ends of the watershed were between 6 and 18 m. Simulated streamflow near the outlet of the watershed decreased to 70% of modern average annual discharge after ???200 yr. The area covered by wetlands for the entire watershed was reduced by ???16%. The mid-Holocene hydrologic changes indicated by these model results and corroborated by several lake-core records across the Crow Wing Watershed may serve as a useful proxy of the hydrologic response to future warm, dry climatic forecasts (ca. 2050) made by some atmospheric general-circulation models for the glaciated Midwestern United States. ?? 2007 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society of America Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/B26003.1","issn":"00167606","usgsCitation":"Person, M., Roy, P., Wright, H., Gutowski, W., Ito, E., Winter, T., Rosenberry, D., and Cohen, D., 2007, Hydrologic response of the Crow Wing Watershed, Minnesota, to mid-Holocene climate change: Geological Society of America Bulletin, v. 119, no. 3-4, p. 363-376, https://doi.org/10.1130/B26003.1.","startPage":"363","endPage":"376","numberOfPages":"14","costCenters":[],"links":[{"id":477108,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://lib.dr.iastate.edu/ge_at_pubs/95","text":"External Repository"},{"id":241494,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213833,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/B26003.1"}],"volume":"119","issue":"3-4","noUsgsAuthors":false,"publicationDate":"2007-03-15","publicationStatus":"PW","scienceBaseUri":"505a3686e4b0c8380cd607a0","contributors":{"authors":[{"text":"Person, M.","contributorId":20876,"corporation":false,"usgs":true,"family":"Person","given":"M.","email":"","affiliations":[],"preferred":false,"id":437645,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roy, P.","contributorId":107109,"corporation":false,"usgs":true,"family":"Roy","given":"P.","email":"","affiliations":[],"preferred":false,"id":437650,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wright, H.","contributorId":7083,"corporation":false,"usgs":true,"family":"Wright","given":"H.","email":"","affiliations":[],"preferred":false,"id":437644,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gutowski, W. Jr.","contributorId":58850,"corporation":false,"usgs":true,"family":"Gutowski","given":"W.","suffix":"Jr.","affiliations":[],"preferred":false,"id":437648,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ito, E.","contributorId":24956,"corporation":false,"usgs":true,"family":"Ito","given":"E.","email":"","affiliations":[],"preferred":false,"id":437646,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Winter, T.","contributorId":89333,"corporation":false,"usgs":true,"family":"Winter","given":"T.","affiliations":[],"preferred":false,"id":437649,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Rosenberry, D.","contributorId":39338,"corporation":false,"usgs":true,"family":"Rosenberry","given":"D.","email":"","affiliations":[],"preferred":false,"id":437647,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Cohen, D.","contributorId":108299,"corporation":false,"usgs":true,"family":"Cohen","given":"D.","email":"","affiliations":[],"preferred":false,"id":437651,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
]}