We recorded bulk electrical conductivity (σb) along a soil column during microbially-mediated selenite oxyanion reduction. Effluent fluid electrical conductivity and early time σb were modeled according to classic advective-dispersive transport of the nutrient medium. However, σb along the column exhibited strongly bimodal breakthrough which cannot be explained by changes in the electrical conductivity of the pore fluid. We model the anomalous breakthrough by adding a conduction path in parallel with the fluid phase, with a time dependence described by a microbial population-dynamics model. We incorporate a delay time to show that breakthrough curves along the column satisfy the same growth model parameters and offer a possible explanation based on biomass-limited growth that is delayed with distance from influent of the nutrient medium. Although the mechanism causing conductivity enhancement in the presence of biomass is uncertain, our results strongly suggest that biogeochemical breakthrough curves have been captured in geoelectrical datasets.
","language":"English","publisher":"AGU","doi":"10.1029/2009GL038695","issn":"00948276","usgsCitation":"Slater, L., Day-Lewis, F.D., Ntarlagiannis, D., O'Brien, M., and Yee, N., 2009, Geoelectrical measurement and modeling of biogeochemical breakthrough behavior during microbial activity: Geophysical Research Letters, v. 36, no. 14, L14402; 5 p., https://doi.org/10.1029/2009GL038695.","productDescription":"L14402; 5 p.","ipdsId":"IP-013008","costCenters":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":476156,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2009gl038695","text":"Publisher Index Page"},{"id":245597,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"14","noUsgsAuthors":false,"publicationDate":"2009-07-28","publicationStatus":"PW","scienceBaseUri":"505a1746e4b0c8380cd55467","contributors":{"authors":[{"text":"Slater, L.D.","contributorId":63229,"corporation":false,"usgs":true,"family":"Slater","given":"L.D.","email":"","affiliations":[],"preferred":false,"id":458796,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Day-Lewis, Frederick D. 0000-0003-3526-886X daylewis@usgs.gov","orcid":"https://orcid.org/0000-0003-3526-886X","contributorId":1672,"corporation":false,"usgs":true,"family":"Day-Lewis","given":"Frederick","email":"daylewis@usgs.gov","middleInitial":"D.","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"preferred":true,"id":458792,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ntarlagiannis, D.","contributorId":57287,"corporation":false,"usgs":true,"family":"Ntarlagiannis","given":"D.","email":"","affiliations":[],"preferred":false,"id":458794,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"O'Brien, M.","contributorId":57980,"corporation":false,"usgs":true,"family":"O'Brien","given":"M.","affiliations":[],"preferred":false,"id":458795,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Yee, N.","contributorId":56461,"corporation":false,"usgs":true,"family":"Yee","given":"N.","email":"","affiliations":[],"preferred":false,"id":458793,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70037281,"text":"70037281 - 2009 - Compositions of modern dust and surface sediments in the Desert Southwest, United States","interactions":[],"lastModifiedDate":"2013-04-21T19:32:09","indexId":"70037281","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2318,"text":"Journal of Geophysical Research F: Earth Surface","active":true,"publicationSubtype":{"id":10}},"title":"Compositions of modern dust and surface sediments in the Desert Southwest, United States","docAbstract":"Modern dusts across southwestern United States deserts are compositionally similar to dust-rich Av soil horizons (depths of 0-0.5 cm and 1-4 cm at 35 sites) for common crustal elements but distinctly different for some trace elements. Chemical compositions and magnetic properties of the soil samples are similar among sites relative to dust sources, geographic areas, and lithologic substrates. Exceptions are Li, U, and W, enriched in Owens Valley, California, and Mg and Sr, enriched in soils formed on calcareous fan gravel in southeast Nevada. The Av horizons are dominated by dust and reflect limited mixing with substrate sediments. Modern dust samples are also similar across the region, except that Owens Valley dusts are higher in Mg, Ba, and Li and dusts both there and at sites to the north on volcanic substrates are higher in Sb and W. Thus, dust and Av horizons consist of contributions from many different sources that are well mixed before deposition. Modern dusts contain significantly greater amounts of As, Cd, Cr, Cu, Ni, Pb, and Sb than do Av horizons, which record dust additions over hundreds to thousands of years. These results suggest that modern dust compositions are influenced by anthropogenic sources and emissions from Owens (dry) Lake after its artificial desiccation in 1926. Both modern dusts and Av horizons are enriched in As, Ba, Cu, Li, Sb, Th, U, and W relative to average crustal composition, which we interpret to indicate that the geologic sources of dust in the southwestern United States are geochemically distinctive.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research F: Earth Surface","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"AGU","publisherLocation":"Washington, D.C.","doi":"10.1029/2008JF001009","issn":"01480227","usgsCitation":"Reheis, M., Budahn, J., Lamothe, P.J., and Reynolds, R.L., 2009, Compositions of modern dust and surface sediments in the Desert Southwest, United States: Journal of Geophysical Research F: Earth Surface, v. 114, no. F1, F01028, https://doi.org/10.1029/2008JF001009.","productDescription":"F01028","costCenters":[],"links":[{"id":476356,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2008jf001009","text":"Publisher Index Page"},{"id":217257,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008JF001009"},{"id":245188,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"114","issue":"F1","noUsgsAuthors":false,"publicationDate":"2009-03-07","publicationStatus":"PW","scienceBaseUri":"5059f93ce4b0c8380cd4d4fc","contributors":{"authors":[{"text":"Reheis, M.C. 0000-0002-8359-323X","orcid":"https://orcid.org/0000-0002-8359-323X","contributorId":36128,"corporation":false,"usgs":true,"family":"Reheis","given":"M.C.","affiliations":[],"preferred":false,"id":460256,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Budahn, J. R. 0000-0001-9794-8882","orcid":"https://orcid.org/0000-0001-9794-8882","contributorId":83914,"corporation":false,"usgs":true,"family":"Budahn","given":"J. R.","affiliations":[],"preferred":false,"id":460259,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lamothe, P. J.","contributorId":45672,"corporation":false,"usgs":true,"family":"Lamothe","given":"P.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":460257,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Reynolds, R. L. 0000-0002-4572-2942","orcid":"https://orcid.org/0000-0002-4572-2942","contributorId":79885,"corporation":false,"usgs":true,"family":"Reynolds","given":"R.","middleInitial":"L.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":460258,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037219,"text":"70037219 - 2009 - Genetic susceptibility to chronic wasting disease in free-ranging white-tailed deer: complement component C1q and Prnp polymorphisms","interactions":[],"lastModifiedDate":"2015-05-18T12:01:36","indexId":"70037219","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1988,"text":"Infection, Genetics and Evolution","active":true,"publicationSubtype":{"id":10}},"title":"Genetic susceptibility to chronic wasting disease in free-ranging white-tailed deer: complement component C1q and Prnp polymorphisms","docAbstract":"The genetic basis of susceptibility to chronic wasting disease (CWD) in free-ranging cervids is of great interest. Association studies of disease susceptibility in free-ranging populations, however, face considerable challenges including: the need for large sample sizes when disease is rare, animals of unknown pedigree create a risk of spurious results due to population admixture, and the inability to control disease exposure or dose. We used an innovative matched case–control design and conditional logistic regression to evaluate associations between polymorphisms of complement C1q and prion protein (Prnp) genes and CWD infection in white-tailed deer from the CWD endemic area in south-central Wisconsin. To reduce problems due to admixture or disease-risk confounding, we used neutral genetic (microsatellite) data to identify closely related CWD-positive (n = 68) and CWD-negative (n = 91) female deer to serve as matched cases and controls. Cases and controls were also matched on factors (sex, location, age) previously demonstrated to affect CWD infection risk. For Prnp, deer with at least one Serine (S) at amino acid 96 were significantly less likely to be CWD-positive relative to deer homozygous for Glycine (G). This is the first characterization of genes associated with the complement system in white-tailed deer. No tests for association between any C1q polymorphism and CWD infection were significant at p < 0.05. After controlling for Prnp, we found weak support for an elevated risk of CWD infection in deer with at least one Glycine (G) at amino acid 56 of the C1qC gene. While we documented numerous amino acid polymorphisms in C1q genes none appear to be strongly associated with CWD susceptibility.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.meegid.2009.08.010","issn":"15671348","usgsCitation":"Blanchong, J.A., Heisey, D.M., Scribner, K.T., Libants, S.V., Johnson, C., Aiken, J.M., Langenberg, J.A., and Samuel, M.D., 2009, Genetic susceptibility to chronic wasting disease in free-ranging white-tailed deer: complement component C1q and Prnp polymorphisms: Infection, Genetics and Evolution, v. 9, no. 6, p. 1329-1335, https://doi.org/10.1016/j.meegid.2009.08.010.","productDescription":"7 p.","startPage":"1329","endPage":"1335","numberOfPages":"7","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":476275,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://lib.dr.iastate.edu/nrem_pubs/84","text":"External Repository"},{"id":245151,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217224,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.meegid.2009.08.010"}],"country":"United States","state":"Wisconsin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -90.5328369140625,\n 42.67839711889055\n ],\n [\n -90.5328369140625,\n 43.42898792344155\n ],\n [\n -89.373779296875,\n 43.42898792344155\n ],\n [\n -89.373779296875,\n 42.67839711889055\n ],\n [\n -90.5328369140625,\n 42.67839711889055\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"9","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1589e4b0c8380cd54e6d","contributors":{"authors":[{"text":"Blanchong, Julie A.","contributorId":6030,"corporation":false,"usgs":false,"family":"Blanchong","given":"Julie","email":"","middleInitial":"A.","affiliations":[{"id":13018,"text":"Department of Forest and Wildlife Ecology, University of Wisconsin, Madison","active":true,"usgs":false}],"preferred":false,"id":459939,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Heisey, Dennis M. dheisey@usgs.gov","contributorId":2455,"corporation":false,"usgs":true,"family":"Heisey","given":"Dennis","email":"dheisey@usgs.gov","middleInitial":"M.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":459943,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scribner, Kim T.","contributorId":95434,"corporation":false,"usgs":false,"family":"Scribner","given":"Kim","email":"","middleInitial":"T.","affiliations":[{"id":6601,"text":"Michigan State University","active":true,"usgs":false}],"preferred":false,"id":459946,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Libants, Scot V.","contributorId":126752,"corporation":false,"usgs":false,"family":"Libants","given":"Scot","email":"","middleInitial":"V.","affiliations":[{"id":6590,"text":"Department of Fisheries and Wildlife, Michigan State University","active":true,"usgs":false}],"preferred":false,"id":459941,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, Chad","contributorId":88678,"corporation":false,"usgs":false,"family":"Johnson","given":"Chad","affiliations":[],"preferred":false,"id":459944,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Aiken, Judd M.","contributorId":64780,"corporation":false,"usgs":false,"family":"Aiken","given":"Judd","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":459942,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Langenberg, Julia A.","contributorId":93619,"corporation":false,"usgs":false,"family":"Langenberg","given":"Julia","email":"","middleInitial":"A.","affiliations":[{"id":7242,"text":"Wisconsin Department of Natural Resources, Madison, WI, USA","active":true,"usgs":false}],"preferred":false,"id":459945,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Samuel, Michael D. msamuel@usgs.gov","contributorId":1419,"corporation":false,"usgs":true,"family":"Samuel","given":"Michael","email":"msamuel@usgs.gov","middleInitial":"D.","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":459940,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70036817,"text":"70036817 - 2009 - A tangled tale of two teal: Population history of the grey Anas gracilis and chestnut teal a. castanea of Australia","interactions":[],"lastModifiedDate":"2012-03-12T17:22:09","indexId":"70036817","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2190,"text":"Journal of Avian Biology","active":true,"publicationSubtype":{"id":10}},"title":"A tangled tale of two teal: Population history of the grey Anas gracilis and chestnut teal a. castanea of Australia","docAbstract":"Two Australian species of teal (Anseriformes: Anatidae: Anas), the grey teal Anas gracilis and the chestnut teal A. castanea, are remarkable for the zero or near-zero divergence recorded between them in earlier surveys of mitochondrial DNA (mtDNA) diversity. We confirmed this result through wider geographical and population sampling as well as nucleotide sampling in the more rapidly evolving mtDNA control region. Any data set where two species share polymorphism as is the case here can be explained by a model of gene flow through hybridization on one hand or by incomplete lineage sorting on the other hand. Ideally, analysis of such shared polymorphism would simultaneously estimate the likelihood of both phenomena. To do this, we used the underlying principle of the IMa package to explore ramifications to understanding population histories of A. gracilis and A. castanea. We cannot reject that hybridization occurs between the two species but an equally or more plausible finding for their nearly zero divergence is incomplete sorting following very recent divergence between the two, probably in the mid-late Pleistocene. Our data add to studies that explore intermediate stages in the evolution of reciprocal monophyly and paraphyletic or polyphyletic relationships in mtDNA diversity among widespread Australian birds. ?? 2009 J. Avian Biol.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Avian Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1600-048X.2008.04652.x","issn":"09088857","usgsCitation":"Joseph, L., Adcock, G., Linde, C., Omland, K., Heinsohn, R., Terry, C.R., and Roshier, D., 2009, A tangled tale of two teal: Population history of the grey Anas gracilis and chestnut teal a. castanea of Australia: Journal of Avian Biology, v. 40, no. 4, p. 430-439, https://doi.org/10.1111/j.1600-048X.2008.04652.x.","startPage":"430","endPage":"439","numberOfPages":"10","costCenters":[],"links":[{"id":476412,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.13016/m2kp7tw02","text":"External Repository"},{"id":217484,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1600-048X.2008.04652.x"},{"id":245435,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"4","noUsgsAuthors":false,"publicationDate":"2009-07-10","publicationStatus":"PW","scienceBaseUri":"5059e5ece4b0c8380cd47032","contributors":{"authors":[{"text":"Joseph, L.","contributorId":99803,"corporation":false,"usgs":true,"family":"Joseph","given":"L.","email":"","affiliations":[],"preferred":false,"id":457987,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adcock, G.J.","contributorId":87007,"corporation":false,"usgs":true,"family":"Adcock","given":"G.J.","email":"","affiliations":[],"preferred":false,"id":457986,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Linde, C.","contributorId":86601,"corporation":false,"usgs":true,"family":"Linde","given":"C.","email":"","affiliations":[],"preferred":false,"id":457985,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Omland, K.E.","contributorId":48924,"corporation":false,"usgs":true,"family":"Omland","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":457983,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Heinsohn, R.","contributorId":74609,"corporation":false,"usgs":true,"family":"Heinsohn","given":"R.","email":"","affiliations":[],"preferred":false,"id":457984,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Terry, Chesser R.","contributorId":26551,"corporation":false,"usgs":true,"family":"Terry","given":"Chesser","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":457982,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Roshier, D.","contributorId":100658,"corporation":false,"usgs":true,"family":"Roshier","given":"D.","email":"","affiliations":[],"preferred":false,"id":457988,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70036819,"text":"70036819 - 2009 - Propagation of the myxozoan parasite Myxobolus cerebralis by different geographic and genetic populations of Tubifex tubifex: An Oregon perspective","interactions":[],"lastModifiedDate":"2012-03-12T17:21:59","indexId":"70036819","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2361,"text":"Journal of Invertebrate Pathology","active":true,"publicationSubtype":{"id":10}},"title":"Propagation of the myxozoan parasite Myxobolus cerebralis by different geographic and genetic populations of Tubifex tubifex: An Oregon perspective","docAbstract":"Tubifex tubifex are obligate invertebrate hosts in the life cycle of Myxobolus cerebralis, the myxozoan parasite that causes whirling disease in salmonid fishes. This exotic parasite is established to varying degrees across Oregon's Columbia River system (Pacific Northwest, USA) and characteristics of local T. tubifex populations likely play a role in the pattern of disease occurrence. To better understand these patterns, we collected T. tubifex from three Oregon river basins (Willamette, Deschutes, and Grande Ronde), determined their genotype (mitochondrial 16S rDNA lineage and RAPD genotype) and exposed 10 different populations to M. cerebralis in the laboratory. Four mt lineages were identified: I, III, V and VI. Lineage III was found in all river basins but dominated both central and eastern sites. The RAPD assay further divided these lineages into geographic sub-populations; no RAPD genotype was common to all basins. There was a significant difference in prevalence of infection and level of parasite production among the populations we exposed to M. cerebralis that was attributed to genotypic composition. Only lineage III worms released actinospores and only populations dominated by this lineage amplified the parasite. These populations had the lowest survival, however, the lineage dominant before exposure remained dominant despite the high prevalence of infection. The distribution and infection dynamics of susceptible T. tubifex throughout Oregon may contribute to the differences in M. cerebralis occurrence; our studies further support the influence of oligochaete genotypes on the manifestation of whirling disease in salmonid populations. ?? 2009 Elsevier Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Invertebrate Pathology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jip.2009.07.001","issn":"00222011","usgsCitation":"Hallett, S., Lorz, H., Atkinson, S., Rasmussen, C., Xue, L., and Bartholomew, J.L., 2009, Propagation of the myxozoan parasite Myxobolus cerebralis by different geographic and genetic populations of Tubifex tubifex: An Oregon perspective: Journal of Invertebrate Pathology, v. 102, no. 1, p. 57-68, https://doi.org/10.1016/j.jip.2009.07.001.","startPage":"57","endPage":"68","numberOfPages":"12","costCenters":[],"links":[{"id":217513,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jip.2009.07.001"},{"id":245464,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"102","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8f12e4b0c8380cd7f581","contributors":{"authors":[{"text":"Hallett, S.L.","contributorId":40831,"corporation":false,"usgs":true,"family":"Hallett","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":457992,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lorz, H.V.","contributorId":68140,"corporation":false,"usgs":true,"family":"Lorz","given":"H.V.","email":"","affiliations":[],"preferred":false,"id":457995,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Atkinson, S.D.","contributorId":80939,"corporation":false,"usgs":true,"family":"Atkinson","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":457996,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rasmussen, C.","contributorId":66392,"corporation":false,"usgs":true,"family":"Rasmussen","given":"C.","email":"","affiliations":[],"preferred":false,"id":457994,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Xue, L.","contributorId":54441,"corporation":false,"usgs":true,"family":"Xue","given":"L.","email":"","affiliations":[],"preferred":false,"id":457993,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bartholomew, J. L.","contributorId":91661,"corporation":false,"usgs":true,"family":"Bartholomew","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":457997,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70036977,"text":"70036977 - 2009 - Morphological variability of the planktonic foraminifer Neogloboquadrina pachyderma from ACEX cores: Implications for late pleistocene circulation in the Arctic Ocean","interactions":[],"lastModifiedDate":"2012-03-12T17:22:01","indexId":"70036977","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2735,"text":"Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Morphological variability of the planktonic foraminifer Neogloboquadrina pachyderma from ACEX cores: Implications for late pleistocene circulation in the Arctic Ocean","docAbstract":"Planktonic foraminifera populations were studied throughout the top 25 meters of the IODP ACEX 302 Hole 4C from the central Arctic Ocean at a resolution varying from 5cm (at the top of the record) to 10cm. Planktonic foraminifera occur in high absolute abundances only in the uppermost fifty centimetres and are dominated by the taxa Neogloboquadrina pachyderma. Except for a few intermittent layers below this level, most samples are barren of calcareous microfossils. Within the topmost sediments, Neogloboquadrina pachyderma specimens present large morphological variability in the shape and number of chambers in the final whorl, chamber sphericity, size, and coiling direction. Five morphotypes were identified among the sinistral (sin.) population (Nps-1 to Nps-5), including a small form (Nps-5) that is similar to a non-encrusted normal form also previously identified in the modern Arctic Ocean water masses. Twenty five percent of the sinistral population is made up by large specimens (Nps-2, 3,4), with a maximal mean diameter larger than 250??m. Following observations made in peri-Arctic seas (Hillaire-Marcel et al. 2004), we propose that occurrence of these large-sized specimens of N. pachyderma (sin.) in the central Arctic Ocean sediments could sign North Atlantic water sub-surface penetration.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Micropaleontology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00262803","usgsCitation":"Eynaud, F., Cronin, T.M., Smith, S., Zaragosi, S., Mavel, J., Mary, Y., Mas, V., and Pujol, C., 2009, Morphological variability of the planktonic foraminifer Neogloboquadrina pachyderma from ACEX cores: Implications for late pleistocene circulation in the Arctic Ocean: Micropaleontology, v. 55, no. 2-3, p. 101-116.","startPage":"101","endPage":"116","numberOfPages":"16","costCenters":[],"links":[{"id":245687,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5e44e4b0c8380cd708fd","contributors":{"authors":[{"text":"Eynaud, F.","contributorId":42425,"corporation":false,"usgs":true,"family":"Eynaud","given":"F.","email":"","affiliations":[],"preferred":false,"id":458811,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"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":458812,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, S.A.","contributorId":72930,"corporation":false,"usgs":true,"family":"Smith","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":458815,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zaragosi, S.","contributorId":24204,"corporation":false,"usgs":true,"family":"Zaragosi","given":"S.","email":"","affiliations":[],"preferred":false,"id":458810,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mavel, J.","contributorId":103907,"corporation":false,"usgs":true,"family":"Mavel","given":"J.","email":"","affiliations":[],"preferred":false,"id":458817,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mary, Y.","contributorId":73037,"corporation":false,"usgs":true,"family":"Mary","given":"Y.","email":"","affiliations":[],"preferred":false,"id":458816,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Mas, V.","contributorId":46341,"corporation":false,"usgs":true,"family":"Mas","given":"V.","email":"","affiliations":[],"preferred":false,"id":458813,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Pujol, C.","contributorId":51582,"corporation":false,"usgs":true,"family":"Pujol","given":"C.","email":"","affiliations":[],"preferred":false,"id":458814,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70036794,"text":"70036794 - 2009 - Constructing constitutive relationships for seismic and aseismic fault slip","interactions":[],"lastModifiedDate":"2012-12-17T19:26:02","indexId":"70036794","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3208,"text":"Pure and Applied Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Constructing constitutive relationships for seismic and aseismic fault slip","docAbstract":"For the purpose of modeling natural fault slip, a useful result from an experimental fault mechanics study would be a physically-based constitutive relation that well characterizes all the relevant observations. This report describes an approach for constructing such equations. Where possible the construction intends to identify or, at least, attribute physical processes and contact scale physics to the observations such that the resulting relations can be extrapolated in conditions and scale between the laboratory and the Earth. The approach is developed as an alternative but is based on Ruina (1983) and is illustrated initially by constructing a couple of relations from that study. In addition, two example constitutive relationships are constructed; these describe laboratory observations not well-modeled by Ruina's equations: the unexpected shear-induced weakening of silica-rich rocks at high slip speed (Goldsby and Tullis, 2002) and fault strength in the brittle ductile transition zone (Shimamoto, 1986). The examples, provided as illustration, may also be useful for quantitative modeling.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Pure and Applied Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Amsterdam, Netherlands","doi":"10.1007/s00024-009-0523-0","issn":"00334553","usgsCitation":"Beeler, N., 2009, Constructing constitutive relationships for seismic and aseismic fault slip: Pure and Applied Geophysics, v. 166, no. 10-11, p. 1775-1798, https://doi.org/10.1007/s00024-009-0523-0.","productDescription":"24 p.","startPage":"1775","endPage":"1798","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true}],"links":[{"id":245522,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217569,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00024-009-0523-0"}],"volume":"166","issue":"10-11","noUsgsAuthors":false,"publicationDate":"2009-07-29","publicationStatus":"PW","scienceBaseUri":"5059fa13e4b0c8380cd4d911","contributors":{"authors":[{"text":"Beeler, N.M. 0000-0002-3397-8481","orcid":"https://orcid.org/0000-0002-3397-8481","contributorId":68894,"corporation":false,"usgs":true,"family":"Beeler","given":"N.M.","affiliations":[],"preferred":false,"id":457885,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70036820,"text":"70036820 - 2009 - Sedimentation processes in a coral reef embayment: Hanalei Bay, Kauai","interactions":[],"lastModifiedDate":"2017-11-05T09:10:57","indexId":"70036820","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Sedimentation processes in a coral reef embayment: Hanalei Bay, Kauai","docAbstract":"Oceanographic measurements and sediment samples were collected during the summer of 2006 as part of a multi-year study of coastal circulation and the fate of terrigenous sediment on coral reefs in Hanalei Bay, Kauai. The goal of this study was to better understand sediment dynamics in a coral reef-lined embayment where winds, ocean surface waves, and river floods are important processes. During a summer period that was marked by two wave events and one river flood, we documented significant differences in sediment trap collection rates and the composition, grain size, and magnitude of sediment transported in the bay. Sediment trap collection rates were well correlated with combined wave-current near-bed shear stresses during the non-flood periods but were not correlated during the flood. The flood's delivery of fine-grained sediment to the bay initially caused high turbidity and sediment collection rates off the river mouth but the plume dispersed relatively quickly. Over the next month, the flood deposit was reworked by mild waves and currents and the fine-grained terrestrial sediment was advected around the bay and collected in sediment traps away from the river mouth, long after the turbid surface plume was gone. The reworked flood deposits, due to their longer duration of influence and proximity to the seabed, appear to pose a greater long-term impact to benthic coral reef communities than the flood plumes themselves. The results presented here display how spatial and temporal differences in hydrodynamic processes, which result from variations in reef morphology and orientation, cause substantial variations in the deposition, residence time, resuspension, and advection of both reef-derived and fluvial sediment over relatively short spatial scales in a coral reef embayment.","language":"English","publisher":"Elsevier","doi":"10.1016/j.margeo.2009.05.002","issn":"00253227","usgsCitation":"Storlazzi, C., Field, M., Bothner, M., Presto, M., and Draut, A., 2009, Sedimentation processes in a coral reef embayment: Hanalei Bay, Kauai: Marine Geology, v. 264, no. 3-4, p. 140-151, https://doi.org/10.1016/j.margeo.2009.05.002.","productDescription":"12 p.","startPage":"140","endPage":"151","costCenters":[],"links":[{"id":476407,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/2985","text":"External Repository"},{"id":245465,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"264","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8a73e4b08c986b3171cf","contributors":{"authors":[{"text":"Storlazzi, C. D. 0000-0001-8057-4490","orcid":"https://orcid.org/0000-0001-8057-4490","contributorId":98905,"corporation":false,"usgs":true,"family":"Storlazzi","given":"C. D.","affiliations":[],"preferred":false,"id":458002,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Field, M.E.","contributorId":27052,"corporation":false,"usgs":true,"family":"Field","given":"M.E.","affiliations":[],"preferred":false,"id":457998,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bothner, Michael H. mbothner@usgs.gov","contributorId":139855,"corporation":false,"usgs":true,"family":"Bothner","given":"Michael H.","email":"mbothner@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":458000,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Presto, M.K.","contributorId":77333,"corporation":false,"usgs":true,"family":"Presto","given":"M.K.","email":"","affiliations":[],"preferred":false,"id":458001,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Draut, A.E.","contributorId":50273,"corporation":false,"usgs":true,"family":"Draut","given":"A.E.","affiliations":[],"preferred":false,"id":457999,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70037037,"text":"70037037 - 2009 - The Asian clam Corbicula fluminea as a biomonitor of trace element contamination: Accounting for different sources of variation using an hierarchical linear model","interactions":[],"lastModifiedDate":"2012-03-12T17:22:09","indexId":"70037037","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","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":"The Asian clam Corbicula fluminea as a biomonitor of trace element contamination: Accounting for different sources of variation using an hierarchical linear model","docAbstract":"In the present study, specimens of the invasive clam, Corbicula fluminea, were collected above and below possible sources of potentially toxic trace elements (As, Cd, Cr, Cu, Hg, Pb, and Zn) in the Altamaha River system (Georgia, USA). Bioaccumulation of these elements was quantified, along with environmental (water and sediment) concentrations. Hierarchical linear models were used to account for variability in tissue concentrations related to environmental (site water chemistry and sediment characteristics) and individual (growth metrics) variables while identifying the strongest relations between these variables and trace element accumulation. The present study found significantly elevated concentrations of Cd, Cu, and Hg downstream of the outfall of kaolin-processing facilities, Zn downstream of a tire cording facility, and Cr downstream of both a nuclear power plant and a paper pulp mill. Models of the present study indicated that variation in trace element accumulation was linked to distance upstream from the estuary, dissolved oxygen, percentage of silt and clay in the sediment, elemental concentrations in sediment, shell length, and bivalve condition index. By explicitly modeling environmental variability, the Hierarchical linear modeling procedure allowed the identification of sites showing increased accumulation of trace elements that may have been caused by human activity. Hierarchical linear modeling is a useful tool for accounting for environmental and individual sources of variation in bioaccumulation studies. ?? 2009 SETAC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1897/09-058.1","issn":"07307268","usgsCitation":"Shoults-Wilson, W.A., Peterson, J., Unrine, J.M., Rickard, J., and Black, M., 2009, The Asian clam Corbicula fluminea as a biomonitor of trace element contamination: Accounting for different sources of variation using an hierarchical linear model: Environmental Toxicology and Chemistry, v. 28, no. 10, p. 2224-2232, https://doi.org/10.1897/09-058.1.","startPage":"2224","endPage":"2232","numberOfPages":"9","costCenters":[],"links":[{"id":245238,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217303,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/09-058.1"}],"volume":"28","issue":"10","noUsgsAuthors":false,"publicationDate":"2009-10-01","publicationStatus":"PW","scienceBaseUri":"505ba68ce4b08c986b3211d7","contributors":{"authors":[{"text":"Shoults-Wilson, W. A.","contributorId":66515,"corporation":false,"usgs":true,"family":"Shoults-Wilson","given":"W.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":459087,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterson, J.T.","contributorId":30170,"corporation":false,"usgs":true,"family":"Peterson","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":459084,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Unrine, J. M.","contributorId":60887,"corporation":false,"usgs":true,"family":"Unrine","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":459086,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rickard, J.","contributorId":45933,"corporation":false,"usgs":true,"family":"Rickard","given":"J.","email":"","affiliations":[],"preferred":false,"id":459085,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Black, M.C.","contributorId":89091,"corporation":false,"usgs":true,"family":"Black","given":"M.C.","email":"","affiliations":[],"preferred":false,"id":459088,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70037158,"text":"70037158 - 2009 - Timing of breeding and reproductive performance in murres and kittiwakes reflect mismatched seasonal prey dynamics","interactions":[],"lastModifiedDate":"2017-07-19T15:15:39","indexId":"70037158","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2663,"text":"Marine Ecology Progress Series","active":true,"publicationSubtype":{"id":10}},"title":"Timing of breeding and reproductive performance in murres and kittiwakes reflect mismatched seasonal prey dynamics","docAbstract":"Seabirds are thought to time breeding to match the seasonal peak of food availability with peak chick energetic demands, but warming ocean temperatures have altered the timing of spring events, creating the potential for mismatches. The resilience of seabird populations to climate change depends on their ability to anticipate changes in the timing and magnitude of peak food availability and 'fine-tune' efforts to match ('Anticipation Hypothesis'). The degree that inter-annual variation in seabird timing of breeding and reproductive performance represents anticipated food availability versus energetic constraints ('Constraint Hypothesis') is poorly understood. We examined the relative merits of the Constraint and Anticipation Hypotheses by testing 2 predictions of the Constraint Hypothesis: (1) seabird timing of breeding is related to food availability prior to egg laying rather than the date of peak food availability, (2) initial reproductive output (e.g. laying success, clutch size) is related to pre-lay food availability rather than anticipated chick-rearing food availability. We analyzed breeding biology data of common murres Uria aalge and black-legged kittiwakes Rissa tridactyla and 2 proxies of the seasonal dynamics of their food availability (near-shore forage fish abundance and sea-surface temperature) at 2 colonies in Lower Cook Inlet, Alaska, USA, from 1996 to 1999. Our results support the Constraint Hypothesis: (1) for both species, egg laying was later in years with warmer sea-surface temperature and lower food availability prior to egg laying, but was not related to the date of peak food availability, (2) pre-egg laying food availability explained variation in kittiwake laying success and clutch size. Murre reproductive success was best explained by food availability during chick rearing. ?? 2009 Inter-Research.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Ecology Progress Series","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3354/meps08136","issn":"01718630","usgsCitation":"Shultz, M., Piatt, J.F., Harding, A., Kettle, A.B., and van Pelt, T.I., 2009, Timing of breeding and reproductive performance in murres and kittiwakes reflect mismatched seasonal prey dynamics: Marine Ecology Progress Series, v. 393, p. 247-258, https://doi.org/10.3354/meps08136.","startPage":"247","endPage":"258","numberOfPages":"12","costCenters":[],"links":[{"id":476272,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/meps08136","text":"Publisher Index Page"},{"id":245214,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217279,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/meps08136"}],"volume":"393","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb3eee4b08c986b326085","contributors":{"authors":[{"text":"Shultz, M.T.","contributorId":62006,"corporation":false,"usgs":true,"family":"Shultz","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":459654,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":459655,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harding, A.M.A.","contributorId":29088,"corporation":false,"usgs":true,"family":"Harding","given":"A.M.A.","email":"","affiliations":[],"preferred":false,"id":459653,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kettle, Arthur B.","contributorId":98064,"corporation":false,"usgs":false,"family":"Kettle","given":"Arthur","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":459656,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"van Pelt, Thomas I.","contributorId":13392,"corporation":false,"usgs":true,"family":"van Pelt","given":"Thomas","email":"","middleInitial":"I.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":false,"id":459652,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70036842,"text":"70036842 - 2009 - Concentration-discharge relationships reflect chemostatic characteristics of US catchments","interactions":[],"lastModifiedDate":"2012-03-12T17:21:58","indexId":"70036842","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Concentration-discharge relationships reflect chemostatic characteristics of US catchments","docAbstract":"Concentration-discharge relationships have been widely used as clues to the hydrochemical processes that control runoff chemistry. Here we examine concentration-discharge relationships for solutes produced primarily by mineral weathering in 59 geochemically diverse US catchments. We show that these catchments exhibit nearly chemostatic behaviour; their stream concentrations of weathering products such as Ca, Mg, Na, and Si typically vary by factors of only 3 to 20 while discharge varies by several orders of magnitude. Similar patterns are observed at the inter-annual time scale. This behaviour implies that solute concentrations in stream water are not determined by simple dilution of a fixed solute flux by a variable flux of water, and that rates of solute production and/or mobilization must be nearly proportional to water fluxes, both on storm and inter-annual timescales. We compared these catchments' concentration-discharge relationships to the predictions of several simple hydrological and geochemical models. Most of these models can be forced to approximately fit the observed concentration-discharge relationships, but often only by assuming unrealistic or internally inconsistent parameter values. We propose a new model that also fits the data and may be more robust. We suggest possible tests of the new model for future studies. The relative stability of concentration under widely varying discharge may help make aquatic environments habitable. It also implies that fluxes of weathering solutes in streams, and thus fluxes of alkalinity to the oceans, are determined primarily by water fluxes. Thus, hydrology may be a major driver of the ocean-alkalinity feedback regulating climate change. Copyright ?? 2009 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.7315","issn":"08856087","usgsCitation":"Godsey, S., Kirchner, J., and Clow, D.W., 2009, Concentration-discharge relationships reflect chemostatic characteristics of US catchments: Hydrological Processes, v. 23, no. 13, p. 1844-1864, https://doi.org/10.1002/hyp.7315.","startPage":"1844","endPage":"1864","numberOfPages":"21","costCenters":[],"links":[{"id":476141,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.597.3342","text":"External Repository"},{"id":217886,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7315"},{"id":245859,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"13","noUsgsAuthors":false,"publicationDate":"2009-05-07","publicationStatus":"PW","scienceBaseUri":"5059f981e4b0c8380cd4d644","contributors":{"authors":[{"text":"Godsey, S.E.","contributorId":89384,"corporation":false,"usgs":true,"family":"Godsey","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":458110,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kirchner, J.W.","contributorId":45846,"corporation":false,"usgs":true,"family":"Kirchner","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":458109,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clow, D. W.","contributorId":23531,"corporation":false,"usgs":true,"family":"Clow","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":458108,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70036920,"text":"70036920 - 2009 - Absolute stellar photometry on moderate-resolution FPA images","interactions":[],"lastModifiedDate":"2012-03-12T17:22:00","indexId":"70036920","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2718,"text":"Metrologia","active":true,"publicationSubtype":{"id":10}},"title":"Absolute stellar photometry on moderate-resolution FPA images","docAbstract":"An extensive database of star (and Moon) images has been collected by the ground-based RObotic Lunar Observatory (ROLO) as part of the US Geological Survey program for lunar calibration. The stellar data are used to derive nightly atmospheric corrections for the observations from extinction measurements, and absolute calibration of the ROLO sensors is based on observations of Vega and published reference flux and spectrum data. The ROLO telescopes were designed for imaging the Moon at moderate resolution, thus imposing some limitations for the stellar photometry. Attaining accurate stellar photometry with the ROLO image data has required development of specialized processing techniques. A key consideration is consistency in discriminating the star core signal from the off-axis point spread function. The analysis and processing methods applied to the ROLO stellar image database are described. ?? 2009 BIPM and IOP Publishing Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Metrologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1088/0026-1394/46/4/S17","issn":"00261394","usgsCitation":"Stone, T., 2009, Absolute stellar photometry on moderate-resolution FPA images: Metrologia, v. 46, no. 4, https://doi.org/10.1088/0026-1394/46/4/S17.","costCenters":[],"links":[{"id":217691,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1088/0026-1394/46/4/S17"},{"id":245651,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"4","noUsgsAuthors":false,"publicationDate":"2009-06-02","publicationStatus":"PW","scienceBaseUri":"5059e64be4b0c8380cd47314","contributors":{"authors":[{"text":"Stone, T.C.","contributorId":74874,"corporation":false,"usgs":true,"family":"Stone","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":458475,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70037310,"text":"70037310 - 2009 - Variation in movement patterns of red drum (Sciaenops ocellatus) inferred from conventional tagging and ultrasonic telemetry","interactions":[],"lastModifiedDate":"2016-12-28T11:30:45","indexId":"70037310","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1663,"text":"Fishery Bulletin","printIssn":"0090-0656","active":true,"publicationSubtype":{"id":10}},"title":"Variation in movement patterns of red drum (Sciaenops ocellatus) inferred from conventional tagging and ultrasonic telemetry","docAbstract":"We used 25 years of conventional tagging data (n=6173 recoveries) and 3 years of ultrasonic telemetry data (n=105 transmitters deployed) to examine movement rates and directional preferences of four age classes of red drum (Sciaenops ocellatus) in estuarine and coastal waters of North Carolina. Movement rates of conventionally tagged red drum were dependent on the age, region, and season of tagging. Age-1 and age-2 red drum tagged along the coast generally moved along the coast, whereas fish tagged in oligohaline waters far from the coast were primarily recovered in coastal regions in fall months. Adult (age-4+) red drum moved from overwintering grounds on the continental shelf through inlets into Pamlico Sound in spring and summer months and departed in fall. Few tagged red drum were recovered in adjacent states (0.6% of all recoveries); however, some adult red drum migrated seasonally from overwintering grounds in coastal North Carolina northward to Virginia in spring, returning in fall. Age-2 transmittertracked red drum displayed seasonal emigration from a small tributary, but upstream and downstream movements within the tributary were correlated with fluctuating salinity regimes and not season. Large-scale conventional tagging and ultrasonic telemetry programs can provide valuable insights into the complex movement patterns of estuarine fish.","language":"English","publisher":"National Oceanic and Atmospheric Administration ","issn":"00900656","usgsCitation":"Bacheler, N., Paramore, L., Burdick, S.M., Buckel, J., and Hightower, J., 2009, Variation in movement patterns of red drum (Sciaenops ocellatus) inferred from conventional tagging and ultrasonic telemetry: Fishery Bulletin, v. 107, no. 4, p. 405-419.","productDescription":"15 p.","startPage":"405","endPage":"419","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":245157,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":332578,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://fishbull.noaa.gov/1074/bacheler.pdf"}],"country":"United States","state":"North Carolina","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -77.6898193359375,\n 36.319551259461186\n ],\n [\n -75.640869140625,\n 36.36822190085111\n ],\n [\n -75.4266357421875,\n 35.45619556834375\n ],\n [\n -75.728759765625,\n 34.67387626588273\n ],\n [\n -76.6845703125,\n 34.56085936708384\n ],\n [\n -77.40966796875,\n 34.94448806230625\n ],\n [\n -77.6953125,\n 36.24427318493909\n ],\n [\n -77.6898193359375,\n 36.319551259461186\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"107","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc15de4b08c986b32a53c","contributors":{"authors":[{"text":"Bacheler, N.M.","contributorId":73440,"corporation":false,"usgs":true,"family":"Bacheler","given":"N.M.","affiliations":[],"preferred":false,"id":460413,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paramore, L.M.","contributorId":97744,"corporation":false,"usgs":true,"family":"Paramore","given":"L.M.","affiliations":[],"preferred":false,"id":460415,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burdick, S. M.","contributorId":78043,"corporation":false,"usgs":true,"family":"Burdick","given":"S.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":460414,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Buckel, J.A.","contributorId":24732,"corporation":false,"usgs":true,"family":"Buckel","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":460412,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hightower, J.E.","contributorId":16605,"corporation":false,"usgs":true,"family":"Hightower","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":460411,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70037312,"text":"70037312 - 2009 - Relationship between body condition of American alligators and water depth in the Everglades, Florida","interactions":[],"lastModifiedDate":"2013-04-08T14:29:07","indexId":"70037312","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","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":"Relationship between body condition of American alligators and water depth in the Everglades, Florida","docAbstract":"Feeding opportunities of American alligators (Alligator mississippiensis) in freshwater wetlands in south Florida are closely linked to hydrologic conditions. In the Everglades, seasonally and annually fluctuating surface water levels affect populations of aquatic organisms that alligators consume. Since prey becomes more concentrated when water depth decreases, we hypothesized an inverse relationship between body condition and water depth in the Everglades. On average, condition of adult alligators in the dry season was significantly higher than in the wet season, but this was not the case for juveniles/subadults. The correlation between body condition and measured water depth at capture locations was weak; however, there was a significant negative correlation between the condition and predicted water depth prior to capture for all animals except for spring juveniles/subadults which had a weak positive condition-water depth relationship. Overall, a relatively strong inverse correlation occurred at 10-49 days prior to the capture day, suggesting that current body condition of alligators may depend on feeding opportunities during that period. Fitted regression of body condition on water depth (mean depth of 10 days when condition-water depth correlation was greatest) resulted in a significantly negative slope, except for spring adult females and spring juveniles/subadults for which slopes were not significantly different from zero. Our results imply that water management practices may be critical for alligators in the Everglades since water depth can affect animal condition in a relatively short period of time.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrobiologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Amsterdam, Netherlands","doi":"10.1007/s10750-009-9925-3","issn":"00188158","usgsCitation":"Fujisaki, I., Rice, K.G., Pearlstine, L.G., and Mazzotti, F., 2009, Relationship between body condition of American alligators and water depth in the Everglades, Florida: Hydrobiologia, v. 635, no. 1, p. 329-338, https://doi.org/10.1007/s10750-009-9925-3.","startPage":"329","endPage":"338","numberOfPages":"10","additionalOnlineFiles":"N","costCenters":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"links":[{"id":217260,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10750-009-9925-3"},{"id":245191,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"635","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-08-27","publicationStatus":"PW","scienceBaseUri":"50e4a72be4b0e8fec6cdc3d6","contributors":{"authors":[{"text":"Fujisaki, Ikuko","contributorId":31108,"corporation":false,"usgs":false,"family":"Fujisaki","given":"Ikuko","email":"","affiliations":[{"id":12557,"text":"University of Florida, FLREC","active":true,"usgs":false}],"preferred":false,"id":460421,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rice, Kenneth G. 0000-0001-8282-1088 krice@usgs.gov","orcid":"https://orcid.org/0000-0001-8282-1088","contributorId":117,"corporation":false,"usgs":true,"family":"Rice","given":"Kenneth","email":"krice@usgs.gov","middleInitial":"G.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":460420,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pearlstine, Leonard G.","contributorId":34751,"corporation":false,"usgs":false,"family":"Pearlstine","given":"Leonard","email":"","middleInitial":"G.","affiliations":[{"id":12462,"text":"U.S. Department of the Interior, National Park Service","active":true,"usgs":false}],"preferred":false,"id":460422,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mazzotti, Frank J.","contributorId":100018,"corporation":false,"usgs":false,"family":"Mazzotti","given":"Frank J.","affiliations":[{"id":12557,"text":"University of Florida, FLREC","active":true,"usgs":false}],"preferred":false,"id":460423,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037061,"text":"70037061 - 2009 - Thermal conductivity of hydrate-bearing sediments","interactions":[],"lastModifiedDate":"2017-08-30T14:17:12","indexId":"70037061","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","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":"Thermal conductivity of hydrate-bearing sediments","docAbstract":"A thorough understanding of the thermal conductivity of hydrate-bearing sediments is necessary for evaluating phase transformation processes that would accompany energy production from gas hydrate deposits and for estimating regional heat flow based on the observed depth to the base of the gas hydrate stability zone. The coexistence of multiple phases (gas hydrate, liquid and gas pore fill, and solid sediment grains) and their complex spatial arrangement hinder the a priori prediction of the thermal conductivity of hydrate-bearing sediments. Previous studies have been unable to capture the full parameter space covered by variations in grain size, specific surface, degree of saturation, nature of pore filling material, and effective stress for hydrate-bearing samples. Here we report on systematic measurements of the thermal conductivity of air dry, water- and tetrohydrofuran (THF)-saturated, and THF hydrate–saturated sand and clay samples at vertical effective stress of 0.05 to 1 MPa (corresponding to depths as great as 100 m below seafloor). Results reveal that the bulk thermal conductivity of the samples in every case reflects a complex interplay among particle size, effective stress, porosity, and fluid-versus-hydrate filled pore spaces. The thermal conductivity of THF hydrate–bearing soils increases upon hydrate formation although the thermal conductivities of THF solution and THF hydrate are almost the same. Several mechanisms can contribute to this effect including cryogenic suction during hydrate crystal growth and the ensuing porosity reduction in the surrounding sediment, increased mean effective stress due to hydrate formation under zero lateral strain conditions, and decreased interface thermal impedance as grain-liquid interfaces are transformed into grain-hydrate interfaces.
","language":"English","publisher":"AGU","doi":"10.1029/2008JB006235","issn":"01480227","usgsCitation":"Cortes, D.D., Martin, A.I., Yun, T.S., Francisca, F.M., Santamarina, J.C., and Ruppel, C.D., 2009, Thermal conductivity of hydrate-bearing sediments: Journal of Geophysical Research B: Solid Earth, v. 114, no. 11, p. 1-10, https://doi.org/10.1029/2008JB006235.","productDescription":"Article B11103; 10 p.","startPage":"1","endPage":"10","ipdsId":"IP-013375","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":476283,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2008jb006235","text":"Publisher Index Page"},{"id":217245,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008JB006235"},{"id":245175,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"114","issue":"11","noUsgsAuthors":false,"publicationDate":"2009-11-18","publicationStatus":"PW","scienceBaseUri":"505bb217e4b08c986b3255c3","contributors":{"authors":[{"text":"Cortes, Douglas D.","contributorId":196028,"corporation":false,"usgs":false,"family":"Cortes","given":"Douglas","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":459194,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Martin, Ana I.","contributorId":196030,"corporation":false,"usgs":false,"family":"Martin","given":"Ana","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":459193,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yun, Tae Sup","contributorId":196031,"corporation":false,"usgs":false,"family":"Yun","given":"Tae","email":"","middleInitial":"Sup","affiliations":[],"preferred":false,"id":459195,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Francisca, Franco M.","contributorId":196029,"corporation":false,"usgs":false,"family":"Francisca","given":"Franco","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":459198,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Santamarina, J. Carlos","contributorId":189401,"corporation":false,"usgs":false,"family":"Santamarina","given":"J.","email":"","middleInitial":"Carlos","affiliations":[],"preferred":false,"id":459196,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ruppel, Carolyn D. 0000-0003-2284-6632 cruppel@usgs.gov","orcid":"https://orcid.org/0000-0003-2284-6632","contributorId":195778,"corporation":false,"usgs":true,"family":"Ruppel","given":"Carolyn","email":"cruppel@usgs.gov","middleInitial":"D.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":459197,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70036913,"text":"70036913 - 2009 - Effects of coal storage in air on physical and chemical properties of coal and on gas adsorption","interactions":[],"lastModifiedDate":"2012-03-12T17:22:00","indexId":"70036913","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2033,"text":"International Journal of Coal Geology","active":true,"publicationSubtype":{"id":10}},"title":"Effects of coal storage in air on physical and chemical properties of coal and on gas adsorption","docAbstract":"This paper investigates changes in the high-volatile bituminous Lower Block Coal Member from Indiana owing to moisture availability and oxidation in air at ambient pressure and temperature over storage time. Specifically, it investigates changes in chemistry, in surface area, and pore structure, as well as changes in methane and carbon dioxide adsorption capacities. Our results document that the methane adsorption capacity increased by 40%, whereas CO2 adsorption capacity increased by 18% during a 13-month time period. These changes in adsorption are accompanied by changes in chemistry and surface area of the coal. The observed changes in adsorption capacity indicate that special care must be taken when collecting samples and preserving coals until adsorption characteristics are measured in the laboratory. High-pressure isotherms from partially dried coal samples would likely cause overestimation of gas adsorption capacities, lead to a miscalculation of coal-bed methane prospects, and provide deceptively optimistic prognoses for recovery of coal-bed methane or capture of anthropogenic CO2. ?? 2009 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.coal.2009.07.001","issn":"01665162","usgsCitation":"Mastalerz, M., Solano-Acosta, W., Schimmelmann, A., and Drobniak, A., 2009, Effects of coal storage in air on physical and chemical properties of coal and on gas adsorption: International Journal of Coal Geology, v. 79, no. 4, p. 167-174, https://doi.org/10.1016/j.coal.2009.07.001.","startPage":"167","endPage":"174","numberOfPages":"8","costCenters":[],"links":[{"id":245530,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217577,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.coal.2009.07.001"}],"volume":"79","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a06b4e4b0c8380cd513a3","contributors":{"authors":[{"text":"Mastalerz, Maria","contributorId":78065,"corporation":false,"usgs":true,"family":"Mastalerz","given":"Maria","affiliations":[],"preferred":false,"id":458449,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Solano-Acosta, W.","contributorId":29212,"corporation":false,"usgs":true,"family":"Solano-Acosta","given":"W.","email":"","affiliations":[],"preferred":false,"id":458448,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schimmelmann, A.","contributorId":28348,"corporation":false,"usgs":false,"family":"Schimmelmann","given":"A.","affiliations":[],"preferred":false,"id":458447,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Drobniak, A.","contributorId":11748,"corporation":false,"usgs":true,"family":"Drobniak","given":"A.","affiliations":[],"preferred":false,"id":458446,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70036806,"text":"70036806 - 2009 - Basanite-nephelinite suite from early Kilauea: Carbonated melts of phlogopite-garnet peridotite at Hawaii's leading magmatic edge","interactions":[],"lastModifiedDate":"2012-03-12T17:21:59","indexId":"70036806","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1336,"text":"Contributions to Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Basanite-nephelinite suite from early Kilauea: Carbonated melts of phlogopite-garnet peridotite at Hawaii's leading magmatic edge","docAbstract":"A basanite-nephelinite glass suite from early submarine Kilauea defines a continuous compositional array marked by increasing concentrations of incompatible components with decreasing SiO2, MgO, and Al2O3. Like peripheral and post-shield strongly alkalic Hawaiian localities (Clague et al. in J Volcanol Geotherm Res 151:279-307, 2006; Dixon et al. in J Pet 38:911-939, 1997), the early Kilauea basanite-nephelinite glasses are interpreted as olivine fractionation products from primary magnesian alkalic liquids. For early Kilauea, these were saturated with a garnet-phlogopite-sulfide peridotite assemblage, with elevated dissolved CO2 contents responsible for the liquids' distinctly low-SiO2 concentrations. Reconstructed primitive liquids for early Kilauea and other Hawaiian strongly alkalic localities are similar to experimental 3 GPa low-degree melts of moderately carbonated garnet lherzolite, and estimated parent magma temperatures of 1,350-1,400??C (olivine-liquid geothermometry) match the ambient upper mantle geotherm shortly beneath the base of the lithosphere. The ???3 GPa source regions were too hot for stable crystalline carbonate and may have consisted of ambient upper mantle peridotite containing interstitial carbonate-silicate or carbonatitic liquid, possibly (Dixon et al. in Geochem Geophys Geosyst 9(9):Q09005, 2008), although not necessarily, from the Hawaiian mantle plume. Carbonate-enriched domains were particularly susceptible to further melting upon modest decompression during upward lithospheric flexure beneath the advancing Hawaiian Arch, or by conductive heating or upward drag by the Hawaiian mantle plume. The early Kilauea basanite-nephelinite suite has a HIMU-influenced isotopic character unlike other Hawaiian magmas (Shimizu et al. in EOS Tran Amer Geophys Union 82(47): abstr V12B-0962, 2001; Shimizu et al. in Geochim Cosmochim Acta 66(15A):710, 2002) but consistent with oceanic carbonatite involvement (Hoernle et al. in Contrib Mineral Petrol 142:520-542, 2002). It may represent the melting products of a fertile domain in the ambient upper mantle impinged upon and perturbed by the sustained plume source that feeds later shield-stage magmatism. ?? US Government 2009.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Contributions to Mineralogy and Petrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00410-009-0411-8","issn":"00107999","usgsCitation":"Sisson, T.W., Kimura, J., and Coombs, M., 2009, Basanite-nephelinite suite from early Kilauea: Carbonated melts of phlogopite-garnet peridotite at Hawaii's leading magmatic edge: Contributions to Mineralogy and Petrology, v. 158, no. 6, p. 803-829, https://doi.org/10.1007/s00410-009-0411-8.","startPage":"803","endPage":"829","numberOfPages":"27","costCenters":[],"links":[{"id":245736,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217770,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00410-009-0411-8"}],"volume":"158","issue":"6","noUsgsAuthors":false,"publicationDate":"2009-07-01","publicationStatus":"PW","scienceBaseUri":"5059efc4e4b0c8380cd4a443","contributors":{"authors":[{"text":"Sisson, T. W.","contributorId":108120,"corporation":false,"usgs":true,"family":"Sisson","given":"T.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":457945,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kimura, Jun-Ichi","contributorId":77719,"corporation":false,"usgs":true,"family":"Kimura","given":"Jun-Ichi","email":"","affiliations":[],"preferred":false,"id":457944,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Coombs, M.L.","contributorId":67692,"corporation":false,"usgs":true,"family":"Coombs","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":457943,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70037036,"text":"70037036 - 2009 - Foods and nutritional components of diets of black bear in Rocky Mountain National Park, Colorado","interactions":[],"lastModifiedDate":"2012-03-12T17:22:09","indexId":"70037036","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Foods and nutritional components of diets of black bear in Rocky Mountain National Park, Colorado","docAbstract":"We used scat analysis to determine diets and relative nutritional values of diets for black bears (Ursus americanus Pallas, 1780) in Rocky Mountain National Park, Colorado, from 2003 to 2006, and compared foods consumed and nutritional components to identify important sources of fecal gross energy (GE), crude fat (CF), and fecal nitrogen (FN) in annual and seasonal diets. Patterns of use of food classes followed typical seasonal patterns for bears, although use of animal matter was among the highest reported (>49% annually). Use of animal matter increased after spring, although crude protein levels in bear diets were always >25%. GE was typically lowest for grasses and other herbaceous plants and highest for ants and ungulates; FN was strongly positively related to most animal sources, but negatively correlated with vegetative matter; and CF showed the strongest positive relationship with ungulates and berries, with the latter likely influenced by the presence of seeds. Compared with historic data (1984-1991), contemporary diets included substantially greater prevalence of anthropogenic foods, which likely contributed to increases in size, condition, and productivity of the contemporary bear population. Management strategies are needed to increase quantity and quality of natural foods while minimizing dependence on anthropogenic sources.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Zoology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/Z09-088","issn":"00084301","usgsCitation":"Baldwin, R., and Bender, L.C., 2009, Foods and nutritional components of diets of black bear in Rocky Mountain National Park, Colorado: Canadian Journal of Zoology, v. 87, no. 11, p. 1000-1008, https://doi.org/10.1139/Z09-088.","startPage":"1000","endPage":"1008","numberOfPages":"9","costCenters":[],"links":[{"id":245237,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217302,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/Z09-088"}],"volume":"87","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a12ece4b0c8380cd5444b","contributors":{"authors":[{"text":"Baldwin, R.A.","contributorId":100206,"corporation":false,"usgs":true,"family":"Baldwin","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":459083,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bender, Louis C.","contributorId":72509,"corporation":false,"usgs":true,"family":"Bender","given":"Louis","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":459082,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70036927,"text":"70036927 - 2009 - Strontium isotope record of seasonal scale variations in sediment sources and accumulation in low-energy, subtidal areas of the lower Hudson River estuary","interactions":[],"lastModifiedDate":"2012-03-12T17:21:59","indexId":"70036927","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Strontium isotope record of seasonal scale variations in sediment sources and accumulation in low-energy, subtidal areas of the lower Hudson River estuary","docAbstract":"Strontium isotope (87Sr/86Sr) profiles in sediment cores collected from two subtidal harbor slips in the lower Hudson River estuary in October 2001 exhibit regular patterns of variability with depth. Using additional evidence from sediment Ca/Sr ratios, 137Cs activity and Al, carbonate (CaCO3), and organic carbon (OCsed) concentration profiles, it can be shown that the observed variability reflects differences in the relative input and trapping of fine-grained sediment from seaward sources vs. landward sources linked to seasonal-scale changes in freshwater flow. During high flow conditions, the geochemical data indicate that most of the fine-grained sediments trapped in the estuary are newly eroded basin materials. During lower (base) flow conditions, a higher fraction of mature materials from seaward sources with higher carbonate content is trapped in the lower estuary. Results show that high-resolution, multi-geochemical tracer approaches utilizing strontium isotope ratios (87Sr/86Sr) can distinguish sediment sources and constrain seasonal scale variations in sediment trapping and accumulation in dynamic estuarine environments. Low-energy, subtidal areas such as those in this study are important sinks for metastable, short-to-medium time scale sediment accumulation. These results also show that these same areas can serve as natural recorders of physical, chemical, and biological processes that affect particle and particle-associated material dynamics over seasonal-to-yearly time scales. ?? 2009.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.chemgeo.2009.03.026","issn":"00092541","usgsCitation":"Smith, J., Bullen, T., Brabander, D., and Olsen, C., 2009, Strontium isotope record of seasonal scale variations in sediment sources and accumulation in low-energy, subtidal areas of the lower Hudson River estuary: Chemical Geology, v. 264, no. 1-4, p. 375-384, https://doi.org/10.1016/j.chemgeo.2009.03.026.","startPage":"375","endPage":"384","numberOfPages":"10","costCenters":[],"links":[{"id":217802,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2009.03.026"},{"id":245774,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"264","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9baee4b08c986b31d020","contributors":{"authors":[{"text":"Smith, J.P.","contributorId":54276,"corporation":false,"usgs":true,"family":"Smith","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":458498,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bullen, T.D.","contributorId":79911,"corporation":false,"usgs":true,"family":"Bullen","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":458499,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brabander, D.J.","contributorId":24600,"corporation":false,"usgs":true,"family":"Brabander","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":458496,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Olsen, C.R.","contributorId":26442,"corporation":false,"usgs":true,"family":"Olsen","given":"C.R.","email":"","affiliations":[],"preferred":false,"id":458497,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70037015,"text":"70037015 - 2009 - Microseismicity at the North Anatolian Fault in the Sea of Marmara offshore Istanbul, NW Turkey","interactions":[],"lastModifiedDate":"2012-12-31T14:50:00","indexId":"70037015","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","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":"Microseismicity at the North Anatolian Fault in the Sea of Marmara offshore Istanbul, NW Turkey","docAbstract":"The North Anatolian Fault Zone (NAFZ) below the Sea of Marmara forms a “seismic gap” where a major earthquake is expected to occur in the near future. This segment of the fault lies between the 1912 Ganos and 1999 İzmit ruptures and is the only NAFZ segment that has not ruptured since 1766. To monitor the microseismic activity at the main fault branch offshore of Istanbul below the Çınarcık Basin, a permanent seismic array (PIRES) was installed on the two outermost Prince Islands, Yassiada and Sivriada, at a few kilometers distance to the fault. In addition, a temporary network of ocean bottom seismometers was deployed throughout the Çınarcık Basin. Slowness vectors are determined combining waveform cross correlation and P wave polarization. We jointly invert azimuth and traveltime observations for hypocenter determination and apply a bootstrap resampling technique to quantify the location precision. We observe seismicity rates of 20 events per month for M < 2.5 along the basin. The spatial distribution of hypocenters suggests that the two major fault branches bounding the depocenter below the Çınarcık Basin merge to one single master fault below ∼17 km depth. On the basis of a cross-correlation technique we group closely spaced earthquakes and determine composite focal mechanisms implementing recordings of surrounding permanent land stations. Fault plane solutions have a predominant right-lateral strike-slip mechanism, indicating that normal faulting along this part of the NAFZ plays a minor role. Toward the west we observe increasing components of thrust faulting. This supports the model of NW trending, dextral strike-slip motion along the northern and main branch of the NAFZ below the eastern Sea of Marmara.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2008JB006244","issn":"01480227","usgsCitation":"Bulut, F., Bohnhoff, M., Ellsworth, W.L., Aktar, M., and Dresen, G., 2009, Microseismicity at the North Anatolian Fault in the Sea of Marmara offshore Istanbul, NW Turkey: Journal of Geophysical Research B: Solid Earth, v. 114, p. 1-16, https://doi.org/10.1029/2008JB006244.","productDescription":"B09302: 16 p.","startPage":"1","endPage":"16","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":476287,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2008jb006244","text":"Publisher Index Page"},{"id":217389,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008JB006244"},{"id":245334,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Turkey","city":"Istanbul","otherGeospatial":"Sea Of Marmara","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 25.5,39.25 ], [ 25.5,41.5 ], [ 41.0,41.5 ], [ 41.0,39.25 ], [ 25.5,39.25 ] ] ] } } ] }","volume":"114","noUsgsAuthors":false,"publicationDate":"2009-09-03","publicationStatus":"PW","scienceBaseUri":"505a56a9e4b0c8380cd6d729","contributors":{"authors":[{"text":"Bulut, Fatih","contributorId":64921,"corporation":false,"usgs":true,"family":"Bulut","given":"Fatih","email":"","affiliations":[],"preferred":false,"id":458973,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bohnhoff, Marco","contributorId":102718,"corporation":false,"usgs":true,"family":"Bohnhoff","given":"Marco","email":"","affiliations":[],"preferred":false,"id":458975,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ellsworth, William L. ellsworth@usgs.gov","contributorId":787,"corporation":false,"usgs":true,"family":"Ellsworth","given":"William","email":"ellsworth@usgs.gov","middleInitial":"L.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":458972,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Aktar, Mustafa","contributorId":94529,"corporation":false,"usgs":true,"family":"Aktar","given":"Mustafa","email":"","affiliations":[],"preferred":false,"id":458974,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dresen, Georg","contributorId":103500,"corporation":false,"usgs":true,"family":"Dresen","given":"Georg","email":"","affiliations":[],"preferred":false,"id":458976,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70036921,"text":"70036921 - 2009 - Sexual difference in PCB concentrations of walleyes (Sander vitreus) from a pristine lake","interactions":[],"lastModifiedDate":"2012-03-12T17:22:00","indexId":"70036921","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Sexual difference in PCB concentrations of walleyes (Sander vitreus) from a pristine lake","docAbstract":"We determined polychlorinated biphenyl (PCB) concentrations in 15 adult female walleyes (Sander vitreus) and 15 adult male walleyes from South Manistique Lake (Michigan, United States), a relatively pristine lake with no point source inputs of PCBs. By measuring PCB concentration in gonads and in somatic tissue of the South Manistique Lake fish, we also estimated the expected change in PCB concentration due to spawning for both sexes. To determine whether gross growth efficiency differed between the sexes, we applied bioenergetics modeling. Results showed that, on average, adult males were 34% higher in PCB concentration than adult females in South Manistique Lake. Results from the PCB determinations of the gonads and somatic tissues revealed that shedding of the gametes led to 1% and 5% increases in PCB concentration for males and females, respectively. Therefore, shedding of the gametes could not explain the higher PCB concentration in adult male walleyes. Bioenergetics modeling results indicated that the sexual difference in PCB concentrations of South Manistique Lake walleyes was attributable, at least in part, to a sexual difference in gross growth efficiency (GGE). Adult female GGE was estimated to be up to 17% greater than adult male GGE.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science of the Total Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.scitotenv.2009.04.031","issn":"00489697","usgsCitation":"Madenjian, C., Hanchin, P., Chernyak, S., and Begnoche, L., 2009, Sexual difference in PCB concentrations of walleyes (Sander vitreus) from a pristine lake: Science of the Total Environment, v. 407, no. 15, p. 4526-4532, https://doi.org/10.1016/j.scitotenv.2009.04.031.","startPage":"4526","endPage":"4532","numberOfPages":"7","costCenters":[],"links":[{"id":217692,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.scitotenv.2009.04.031"},{"id":245652,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"407","issue":"15","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8db9e4b08c986b318514","contributors":{"authors":[{"text":"Madenjian, C.P.","contributorId":64175,"corporation":false,"usgs":true,"family":"Madenjian","given":"C.P.","affiliations":[],"preferred":false,"id":458478,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hanchin, P.A.","contributorId":56484,"corporation":false,"usgs":true,"family":"Hanchin","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":458477,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chernyak, S.M.","contributorId":21509,"corporation":false,"usgs":true,"family":"Chernyak","given":"S.M.","affiliations":[],"preferred":false,"id":458476,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Begnoche, L.J.","contributorId":103025,"corporation":false,"usgs":true,"family":"Begnoche","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":458479,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70036802,"text":"70036802 - 2009 - Foraminiferal assemblages in Biscayne Bay, Florida, USA: Responses to urban and agricultural influence in a subtropical estuary","interactions":[],"lastModifiedDate":"2023-12-06T15:56:35.37842","indexId":"70036802","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2676,"text":"Marine Pollution Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Foraminiferal assemblages in Biscayne Bay, Florida, USA: Responses to urban and agricultural influence in a subtropical estuary","docAbstract":"This study assessed foraminiferal assemblages in Biscayne Bay, Florida, a heavily utilized estuary, interpreting changes over the past 65 years and providing a baseline for future comparisons. Analyses of foraminiferal data at the genus level revealed three distinct biotopes. The assemblage from the northern bay was characterized by stress-tolerant taxa, especially Ammonia, present in low abundances (∼2.0 × 103 foraminifers/gram) though relatively high diversity (∼19 genera/sample). The southwestern margin of the bay was dominated by Ammonia and Quinqueloculina, an assemblage characterized by the lowest diversities (∼12 genera/sample) and highest abundances (∼1.1 × 104 foraminifers/gram), influenced by both reduced salinity and elevated organic-carbon concentrations. A diverse assemblage of smaller miliolids and rotaliids (∼26 genera/sample) characterized the open-bay assemblage, which also had a significant component (∼10%) of taxa that host algal endosymbionts. In the past 65 years, populations of symbiont-bearing taxa, which are indicators of normal-marine conditions, have decreased while stress-tolerant taxa, especially Ammonia spp., have increased in predominance.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.marpolbul.2009.08.008","usgsCitation":"Carnahan, E.A., Hoare, A., Hallock, P., Lidz, B.H., and Reich, C., 2009, Foraminiferal assemblages in Biscayne Bay, Florida, USA: Responses to urban and agricultural influence in a subtropical estuary: Marine Pollution Bulletin, v. 59, no. 8-12, p. 221-233, https://doi.org/10.1016/j.marpolbul.2009.08.008.","productDescription":"13 p.","startPage":"221","endPage":"233","numberOfPages":"13","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":245675,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Biscayne Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -80.38823047876525,\n 25.304375216026585\n ],\n [\n -80.37247201524954,\n 25.288940592693834\n ],\n [\n -80.34620790938924,\n 25.281816257690082\n ],\n [\n -80.23852507536327,\n 25.36965378620114\n ],\n [\n -80.17286481071336,\n 25.509586973044307\n ],\n [\n -80.15316673131825,\n 25.669480206069977\n ],\n [\n -80.15185352602535,\n 25.72982863196887\n ],\n [\n -80.13872134508031,\n 25.76767803684764\n ],\n [\n -80.18730994092095,\n 25.78186869567662\n ],\n [\n -80.24771738439917,\n 25.715631109091248\n ],\n [\n -80.31731726492848,\n 25.60673214322466\n ],\n [\n -80.31600405963493,\n 25.554614912521558\n ],\n [\n -80.34226816549527,\n 25.516697226572603\n ],\n [\n -80.33964175490944,\n 25.440825922291197\n ],\n [\n -80.3540870131322,\n 25.434896461233592\n ],\n [\n -80.38823047876525,\n 25.304375216026585\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"59","issue":"8-12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1308e4b0c8380cd544be","contributors":{"authors":[{"text":"Carnahan, E. A.","contributorId":107947,"corporation":false,"usgs":false,"family":"Carnahan","given":"E.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":457931,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hoare, A.M.","contributorId":20167,"corporation":false,"usgs":false,"family":"Hoare","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":457927,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hallock, P.","contributorId":91263,"corporation":false,"usgs":false,"family":"Hallock","given":"P.","email":"","affiliations":[],"preferred":false,"id":457930,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lidz, B. H.","contributorId":30651,"corporation":false,"usgs":true,"family":"Lidz","given":"B.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":457928,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Reich, C. D. 0000-0002-2534-1456","orcid":"https://orcid.org/0000-0002-2534-1456","contributorId":36978,"corporation":false,"usgs":true,"family":"Reich","given":"C. D.","affiliations":[],"preferred":false,"id":457929,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70037060,"text":"70037060 - 2009 - Mapping Curie temperature depth in the western United States with a fractal model for crustal magnetization","interactions":[],"lastModifiedDate":"2012-03-12T17:22:10","indexId":"70037060","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","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":"Mapping Curie temperature depth in the western United States with a fractal model for crustal magnetization","docAbstract":"We have revisited the problem of mapping depth to the Curie temperature isotherm from magnetic anomalies in an attempt to provide a measure of crustal temperatures in the western United States. Such methods are based on the estimation of the depth to the bottom of magnetic sources, which is assumed to correspond to the temperature at which rocks lose their spontaneous magnetization. In this study, we test and apply a method based on the spectral analysis of magnetic anomalies. Early spectral analysis methods assumed that crustal magnetization is a completely uncorrelated function of position. Our method incorporates a more realistic representation where magnetization has a fractal distribution defined by three independent parameters: the depths to the top and bottom of magnetic sources and a fractal parameter related to the geology. The predictions of this model are compatible with radial power spectra obtained from aeromagnetic data in the western United States. Model parameters are mapped by estimating their value within a sliding window swept over the study area. The method works well on synthetic data sets when one of the three parameters is specified in advance. The application of this method to western United States magnetic compilations, assuming a constant fractal parameter, allowed us to detect robust long-wavelength variations in the depth to the bottom of magnetic sources. Depending on the geologic and geophysical context, these features may result from variations in depth to the Curie temperature isotherm, depth to the mantle, depth to the base of volcanic rocks, or geologic settings that affect the value of the fractal parameter. Depth to the bottom of magnetic sources shows several features correlated with prominent heat flow anomalies. It also shows some features absent in the map of heat flow. Independent geophysical and geologic data sets are examined to determine their origin, thereby providing new insights on the thermal and geologic crustal structure of the western United States.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2009JB006494","issn":"01480227","usgsCitation":"Bouligand, C., Glen, J., and Blakely, R., 2009, Mapping Curie temperature depth in the western United States with a fractal model for crustal magnetization: Journal of Geophysical Research B: Solid Earth, v. 114, no. 11, https://doi.org/10.1029/2009JB006494.","costCenters":[],"links":[{"id":476228,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://insu.hal.science/insu-00498534","text":"External Repository"},{"id":217244,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2009JB006494"},{"id":245174,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"114","issue":"11","noUsgsAuthors":false,"publicationDate":"2009-11-20","publicationStatus":"PW","scienceBaseUri":"505a5044e4b0c8380cd6b574","contributors":{"authors":[{"text":"Bouligand, C.","contributorId":55928,"corporation":false,"usgs":true,"family":"Bouligand","given":"C.","affiliations":[],"preferred":false,"id":459191,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Glen, J.M.G.","contributorId":38330,"corporation":false,"usgs":true,"family":"Glen","given":"J.M.G.","email":"","affiliations":[],"preferred":false,"id":459190,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blakely, R.J. 0000-0003-1701-5236","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":70755,"corporation":false,"usgs":true,"family":"Blakely","given":"R.J.","affiliations":[],"preferred":false,"id":459192,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ]}