The Miniature Thermal Emission Spectrometer (Mini‐TES) on board the two Mars Exploration Rovers provides the first opportunity to observe thermal properties from the Martian surface, relate these properties to orbital data, and perform soil conductivity experiments under Martian conditions. The thermal inertias of soils, bedforms, and rock at each landing site were derived to quantify the physical properties of these features and understand geologic processes occurring at these localities. The thermal inertia for the Gusev plains rock target Bonneville Beacon (∼1200 J m−2 K−1 s−1/2) is consistent with a dense, basaltic rock, but the rocks at the Columbia Hills have a lower thermal inertia (∼620 J m−2 K−1s−1/2), suggesting that they have a volcaniclasic origin. Bedforms on the floors of craters at both landing sites have thermal inertias of 200 J m−2 K−1 s−1/2, consistent with a particle diameter of ∼160 μm. This diameter is comparable to the most easily moved grain size in the current atmosphere on Mars, suggesting that these bedforms may have formed under current atmospheric conditions. Along the Meridiani plains, the thermal inertia is lower than that derived from TES and Thermal Emission Imaging System (THEMIS) orbital data. This discrepancy is not well understood. Mini‐TES–derived thermal inertias at Gusev along a ∼2.5 km traverse follow trends in thermal inertia measured from orbit with TES and THEMIS. However, along the traverse, there are variability and mixing of particle sizes that are not resolved in the orbital thermal inertia data due to meter‐scale processes that are not identifiable at larger scales.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2005JE002583","issn":"01480227","usgsCitation":"Fergason, R., Christensen, P.R., Bell, J., Golombek, M., Herkenhoff, K.E., and Kieffer, H.H., 2006, Physical properties of the Mars Exploration Rover landing sites as inferred from Mini-TES-derived thermal inertia: Journal of Geophysical Research E: Planets, v. 111, no. E2, 18 p., https://doi.org/10.1029/2005JE002583.","productDescription":"18 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":477457,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2005je002583","text":"Publisher Index Page"},{"id":238786,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"111","issue":"E2","noUsgsAuthors":false,"publicationDate":"2006-02-11","publicationStatus":"PW","scienceBaseUri":"505a7ac2e4b0c8380cd7909b","contributors":{"authors":[{"text":"Fergason, R.L.","contributorId":13786,"corporation":false,"usgs":true,"family":"Fergason","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":430365,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christensen, P. R.","contributorId":7819,"corporation":false,"usgs":false,"family":"Christensen","given":"P.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":430364,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bell, J.F. III","contributorId":97612,"corporation":false,"usgs":true,"family":"Bell","given":"J.F.","suffix":"III","email":"","affiliations":[],"preferred":false,"id":430369,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Golombek, M.P.","contributorId":52696,"corporation":false,"usgs":true,"family":"Golombek","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":430367,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Herkenhoff, Kenneth E. 0000-0002-3153-6663 kherkenhoff@usgs.gov","orcid":"https://orcid.org/0000-0002-3153-6663","contributorId":2275,"corporation":false,"usgs":true,"family":"Herkenhoff","given":"Kenneth","email":"kherkenhoff@usgs.gov","middleInitial":"E.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":430368,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kieffer, H. H.","contributorId":40725,"corporation":false,"usgs":false,"family":"Kieffer","given":"H.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":430366,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70031167,"text":"70031167 - 2006 - An improved model for the calculation of CO2 solubility in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl-, and SO42-","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70031167","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2662,"text":"Marine Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"An improved model for the calculation of CO2 solubility in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl-, and SO42-","docAbstract":"An improved model is presented for the calculation of the solubility of carbon dioxide in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl-, and SO42- in a wide temperature-pressure-ionic strength range (from 273 to 533 K, from 0 to 2000 bar, and from 0 to 4.5 molality of salts) with experimental accuracy. The improvements over the previous model [Duan, Z. and Sun, R., 2003. An improved model calculating CO2 solubility in pure water and aqueous NaCl solutions from 273 to 533K and from 0 to 2000 bar. Chemical Geology, 193: 257-271] include: (1) By developing a non-iterative equation to replace the original equation of state in the calculation of CO 2 fugacity coefficients, the new model is at least twenty times computationally faster and can be easily adapted to numerical reaction-flow simulator for such applications as CO2 sequestration and (2) By fitting to the new solubility data, the new model improved the accuracy below 288 K from 6% to about 3% of uncertainty but still retains the high accuracy of the original model above 288 K. We comprehensively evaluate all experimental CO2 solubility data. Compared with these data, this model not only reproduces all the reliable data used for the parameterization but also predicts the data that were not used in the parameterization. In order to facilitate the application to CO2 sequestration, we also predicted CO2 solubility in seawater at two-phase coexistence (vapor-liquid or liquid-liquid) and at three-phase coexistence (CO2 hydrate-liquid water-vapor CO2 [or liquid CO2]). The improved model is programmed and can be downloaded from the website http://www.geochem-model.org/programs.htm. ?? 2005 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.marchem.2005.09.001","issn":"03044203","usgsCitation":"Duan, Z., Sun, R., Zhu, C., and Chou, I., 2006, An improved model for the calculation of CO2 solubility in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl-, and SO42-: Marine Chemistry, v. 98, no. 2-4, p. 131-139, https://doi.org/10.1016/j.marchem.2005.09.001.","startPage":"131","endPage":"139","numberOfPages":"9","costCenters":[],"links":[{"id":211407,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marchem.2005.09.001"},{"id":238690,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"98","issue":"2-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea72e4b0c8380cd4887b","contributors":{"authors":[{"text":"Duan, Zhenhao","contributorId":71302,"corporation":false,"usgs":true,"family":"Duan","given":"Zhenhao","email":"","affiliations":[],"preferred":false,"id":430339,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sun, R.","contributorId":10137,"corporation":false,"usgs":true,"family":"Sun","given":"R.","affiliations":[],"preferred":false,"id":430337,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhu, Chen","contributorId":6244,"corporation":false,"usgs":true,"family":"Zhu","given":"Chen","email":"","affiliations":[],"preferred":false,"id":430336,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chou, I.-M. 0000-0001-5233-6479","orcid":"https://orcid.org/0000-0001-5233-6479","contributorId":44283,"corporation":false,"usgs":true,"family":"Chou","given":"I.-M.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":430338,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031151,"text":"70031151 - 2006 - Geochemistry and source waters of rock glacier outflow, Colorado Front Range","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70031151","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3032,"text":"Permafrost and Periglacial Processes","active":true,"publicationSubtype":{"id":10}},"title":"Geochemistry and source waters of rock glacier outflow, Colorado Front Range","docAbstract":"We characterize the seasonal variation in the geochemical and isotopic content of the outflow of the Green Lake 5 rock glacier (RG5), located in the Green Lakes Valley of the Colorado Front Range, USA. Between June and August, the geochemical content of rock glacier outflow does not appear to differ substantially from that of other surface waters in the Green Lakes Valley. Thus, for this alpine ecosystem at this time of year there does not appear to be large differences in water quality among rock glacier outflow, glacier and blockslope discharge, and discharge from small alpine catchments. However, in September concentrations of Mg2+ in the outflow of the rock glacier increased to more than 900 ??eq L-1 compared to values of less than 40 ??eq L-1 at all the other sites, concentrations of Ca2+ were greater than 4,000 ??eq L-1 compared to maximum values of less than 200 ??eq L-1 at all other sites, and concentrations of SO42- reached 7,000 ??eq L-1, compared to maximum concentrations below 120 ??eq L-1 at the other sites. Inverse geochemical modelling suggests that dissolution of pyrite, epidote, chlorite and minor calcite as well as the precipitation of silica and goethite best explain these elevated concentrations of solutes in the outflow of the rock glacier. Three component hydrograph separation using end-member mixing analysis shows that melted snow comprised an average of 30% of RG5 outflow, soil water 32%, and base flow 38%. Snow was the dominant source water in June, soil water was the dominant water source in July, and base flow was the dominant source in September. Enrichment of ?? 18O from - 10??? in the outflow of the rock glacier compared to -20??? in snow and enrichment of deuterium excess from +17.5??? in rock glacier outflow compared to +11??? in snow, suggests that melt of internal ice that had undergone multiple melt/freeze episodes was the dominant source of base flow. Copyright ?? 2005 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Permafrost and Periglacial Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/ppp.535","issn":"10456740","usgsCitation":"Williams, M., Knauf, M., Caine, N., Liu, F., and Verplanck, P., 2006, Geochemistry and source waters of rock glacier outflow, Colorado Front Range: Permafrost and Periglacial Processes, v. 17, no. 1, p. 13-33, https://doi.org/10.1002/ppp.535.","startPage":"13","endPage":"33","numberOfPages":"21","costCenters":[],"links":[{"id":238980,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211652,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/ppp.535"}],"volume":"17","issue":"1","noUsgsAuthors":false,"publicationDate":"2005-12-30","publicationStatus":"PW","scienceBaseUri":"505a16e0e4b0c8380cd552c9","contributors":{"authors":[{"text":"Williams, M.W.","contributorId":15565,"corporation":false,"usgs":true,"family":"Williams","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":430268,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Knauf, M.","contributorId":77360,"corporation":false,"usgs":true,"family":"Knauf","given":"M.","email":"","affiliations":[],"preferred":false,"id":430270,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Caine, N.","contributorId":34881,"corporation":false,"usgs":true,"family":"Caine","given":"N.","email":"","affiliations":[],"preferred":false,"id":430269,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Liu, F.","contributorId":14150,"corporation":false,"usgs":true,"family":"Liu","given":"F.","email":"","affiliations":[],"preferred":false,"id":430267,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Verplanck, P. L. 0000-0002-3653-6419","orcid":"https://orcid.org/0000-0002-3653-6419","contributorId":106565,"corporation":false,"usgs":true,"family":"Verplanck","given":"P. L.","affiliations":[],"preferred":false,"id":430271,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031150,"text":"70031150 - 2006 - Capture-related stressors impair immune system function in sablefish","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70031150","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Capture-related stressors impair immune system function in sablefish","docAbstract":"The sablefish Anoplopoma fimbria is a valuable North Pacific Ocean species that, when not targeted in various commercial fisheries, is often a part of discarded bycatch. Predictions of the survival of discarded fish are dependent on understanding how a fish responds to stressful conditions. Our objective was to describe the immunological health of sablefish exposed to capture stressors. In laboratory experiments designed to simulate the capture process, we subjected sablefish to various stressors that might influence survival: towing in a net, hooking, elevated seawater and air temperatures, and air exposure time. After stress was imposed, the in vitro mitogen-stimulated proliferation of sablefish leukocytes was used to evaluate the function of the immune system in an assay we validated for this species. The results demonstrated that regardless of fishing gear type, exposure to elevated seawater temperature, or time in air, the leukocytes from stressed sablefish exhibited significantly diminished proliferative responses to the T-cell mitogen, concanavalin A, or the B-cell mitogen, lipopolysaccharide. There was no difference in the immunological responses associated with seawater or air temperature. The duration and severity of the capture stressors applied in our study were harsh enough to induce significantly elevated levels of plasma cortisol and glucose, but there was no difference in the magnitude of levels among stressor treatments. These data suggest that immunological suppression occurs in sablefish subjected to capture-related stressors. The functional impairment of the immune system after capture presents a potential reason why delayed mortality is possible in discarded sablefish. Further studies are needed to determine whether delayed mortality in discarded sablefish can be caused by increased susceptibility to infectious agents resulting from stressor-mediated immunosuppression.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T04-198.1","issn":"00028487","usgsCitation":"Lupes, S., Davis, M., Olla, B., and Schreck, C., 2006, Capture-related stressors impair immune system function in sablefish: Transactions of the American Fisheries Society, v. 135, no. 1, p. 129-138, https://doi.org/10.1577/T04-198.1.","startPage":"129","endPage":"138","numberOfPages":"10","costCenters":[],"links":[{"id":211651,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T04-198.1"},{"id":238979,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"135","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"5059f355e4b0c8380cd4b725","contributors":{"authors":[{"text":"Lupes, S.C.","contributorId":84975,"corporation":false,"usgs":true,"family":"Lupes","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":430266,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, M.W.","contributorId":51083,"corporation":false,"usgs":true,"family":"Davis","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":430265,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olla, B.L.","contributorId":10602,"corporation":false,"usgs":true,"family":"Olla","given":"B.L.","affiliations":[],"preferred":false,"id":430263,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schreck, C.B.","contributorId":11977,"corporation":false,"usgs":true,"family":"Schreck","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":430264,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031149,"text":"70031149 - 2006 - Variability in supply and cross-shelf transport of pink shrimp (Farfantepenaeus duorarum) postlarvae into western Florida Bay","interactions":[],"lastModifiedDate":"2016-03-30T13:48:43","indexId":"70031149","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Variability in supply and cross-shelf transport of pink shrimp (Farfantepenaeus duorarum) postlarvae into western Florida Bay","docAbstract":"The variability in the supply of pink shrimp (Farfantepenaeus duorarum) postlarvae and the transport mechanisms of planktonic stages were investigated with field data and simulations of transport. Postlarvae entering the nursery grounds of Florida Bay were collected for three consecutive years at channels that connect the Bay with the Gulf of Mexico, and in channels of the Middle Florida Keys that connect the southeastern margin of the Bay with the Atlantic Ocean. The influx of postlarvae in the Middle Florida Keys was low in magnitude and varied seasonally and among years. In contrast, the greater postlarval influx occurred at the northwestern border of the Bay, where there was a strong seasonal pattern with peaks in influx from July through September each year. Planktonic stages need to travel up to 150 km eastward between spawning grounds (northeast of Dry Tortugas) and nursery grounds (western Florida Bay) in about 30 days, the estimated time of planktonic development for this species. A Lagrangian trajectory model was developed to estimate the drift of planktonic stages across the SW Florida shelf. The model simulated the maximal distance traveled by planktonic stages under various assumptions of behavior. Simulation results indicated that larvae traveling with the instantaneous current and exhibiting a diel behavior travel up to 65 km and 75% of the larvae travel only 30 km. However, the eastward distance traveled increased substantially when a larval response to tides was added to the behavioral variable (distance increased to 200 km and 85% of larvae traveled 150 km). The question is, when during larval development, and where on the shallow SW Florida shelf, does the tidal response become incorporated into the behavior of pink shrimp.
","language":"English","publisher":"U.S. Government Printing Office","publisherLocation":"Washington, D.C.","issn":"00900656","usgsCitation":"Criales, M.M., Wang, J.D., Browder, J.A., Robblee, M.B., Jackson, T.L., and Hittle, C.D., 2006, Variability in supply and cross-shelf transport of pink shrimp (Farfantepenaeus duorarum) postlarvae into western Florida Bay: Fishery Bulletin, v. 104, no. 1, p. 60-74.","productDescription":"15 p.","startPage":"60","endPage":"74","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":238947,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":319626,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://fishbull.noaa.gov/1041/1041toc.htm"}],"country":"United States","state":"Florida","otherGeospatial":"Dry Tortugas, Florida Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -79.91455078125,\n 25.94816628853973\n ],\n [\n -79.9200439453125,\n 25.54244147012483\n ],\n [\n -80.2166748046875,\n 25.04081549894912\n ],\n [\n -80.8648681640625,\n 24.56211235799689\n ],\n [\n -81.5789794921875,\n 24.412140070651528\n ],\n [\n -82.6336669921875,\n 24.382124181118236\n ],\n [\n -83.07861328125,\n 24.45215015618098\n ],\n [\n -83.1060791015625,\n 24.696934226366672\n ],\n [\n -82.5787353515625,\n 24.806681353851964\n ],\n [\n -81.3262939453125,\n 24.926294766395593\n ],\n [\n -80.760498046875,\n 25.224820176765036\n ],\n [\n -80.4364013671875,\n 25.606855993715016\n ],\n [\n -80.343017578125,\n 25.849336891707605\n ],\n [\n -80.2056884765625,\n 25.93828707492375\n ],\n [\n -80.04638671875,\n 25.96792222903405\n ],\n [\n -79.91455078125,\n 25.94816628853973\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"104","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc12fe4b08c986b32a492","contributors":{"authors":[{"text":"Criales, Maria M.","contributorId":69330,"corporation":false,"usgs":false,"family":"Criales","given":"Maria","email":"","middleInitial":"M.","affiliations":[{"id":12565,"text":"Rosenstiel School of Atomospheric Science, University of Miami","active":true,"usgs":false}],"preferred":false,"id":430260,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wang, John D.","contributorId":75224,"corporation":false,"usgs":true,"family":"Wang","given":"John","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":430261,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Browder, Joan A.","contributorId":7439,"corporation":false,"usgs":true,"family":"Browder","given":"Joan","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430257,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Robblee, Michael B. mike_robblee@usgs.gov","contributorId":3865,"corporation":false,"usgs":true,"family":"Robblee","given":"Michael","email":"mike_robblee@usgs.gov","middleInitial":"B.","affiliations":[],"preferred":true,"id":430258,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jackson, Thomas L.","contributorId":93667,"corporation":false,"usgs":true,"family":"Jackson","given":"Thomas","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":430262,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hittle, Clinton D. cdhittle@usgs.gov","contributorId":2436,"corporation":false,"usgs":true,"family":"Hittle","given":"Clinton","email":"cdhittle@usgs.gov","middleInitial":"D.","affiliations":[],"preferred":true,"id":430259,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70031141,"text":"70031141 - 2006 - Comparison of synthesis of 15α-hydroxylated steroids in males of four North American lamprey species","interactions":[],"lastModifiedDate":"2016-05-12T16:08:41","indexId":"70031141","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1738,"text":"General and Comparative Endocrinology","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of synthesis of 15α-hydroxylated steroids in males of four North American lamprey species","docAbstract":"Recent studies have provided evidence that 15α-hydroxytestosterone (15α-T) and 15α-hydroxyprogesterone (15α-P) are produced in vitro and in vivo in adult male sea lampreys (Petromyzonmarinus), and that circulatory levels increase in response to injections with gonadotropin-releasing hormone (GnRH). We examined four species from the Petromyzontidae family including silver lampreys (Ichthyomyzon unicuspis), chestnut lampreys (I. castaneus), American brook lampreys (Lethenteron appendix), and Pacific lampreys (Entosphenus tridentatus) to determine if these unusual steroids were unique to sea lampreys or a common feature in lamprey species. In vitro production was examined through incubations of testis with tritiated precursors, and 15α-T and 15α-P production was confirmed in all species through co-elution with standards on both high performance liquid chromatography (HPLC) and thin layerchromatography. In vivo production was proven by demonstrating that HPLC-fractionated plasma had peaks of immunoreactive 15α-T and 15α-P that co-eluted with standards through using previously developed radioimmunoassays for 15α-T and 15α-P. The possible functionality of 15α-T and 15α-P was further examined in silver and Pacific lampreys by investigating the effect of injection of either type of lamprey GnRH on plasma concentrations of 15α-T and 15α-P. Injections with exogenous GnRH did not affect circulatory levels of either steroid in silver lampreys, and only GnRH III elicited higher levels of both steroids in Pacific lampreys. The 15α-hydroxylase enzyme(s) for steroids appeared to present in adult males of all species examined, but the question of whether 15α-hydroxylated steroids are functional in these lamprey species, and the significance of the 15-hydroxyl group, requires further research.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.ygcen.2005.11.003","issn":"00166480","usgsCitation":"Bryan, M.B., Young, B.A., Close, D.A., Semeyn, J., Robinson, T.C., Bayer, J.M., and Li, W., 2006, Comparison of synthesis of 15α-hydroxylated steroids in males of four North American lamprey species: General and Comparative Endocrinology, v. 146, no. 2, p. 149-156, https://doi.org/10.1016/j.ygcen.2005.11.003.","productDescription":"8 p.","startPage":"149","endPage":"156","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":238816,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211516,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ygcen.2005.11.003"}],"volume":"146","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f894e4b0c8380cd4d1ca","contributors":{"authors":[{"text":"Bryan, Mara B.","contributorId":19863,"corporation":false,"usgs":true,"family":"Bryan","given":"Mara","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":430221,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Young, Bradley A.","contributorId":98536,"corporation":false,"usgs":true,"family":"Young","given":"Bradley","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430225,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Close, David A.","contributorId":54958,"corporation":false,"usgs":true,"family":"Close","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430222,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Semeyn, Jesse","contributorId":18971,"corporation":false,"usgs":true,"family":"Semeyn","given":"Jesse","email":"","affiliations":[],"preferred":false,"id":430220,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Robinson, T. Craig","contributorId":93266,"corporation":false,"usgs":true,"family":"Robinson","given":"T.","email":"","middleInitial":"Craig","affiliations":[],"preferred":false,"id":430224,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bayer, Jennifer M. 0000-0001-9564-3110 jbayer@usgs.gov","orcid":"https://orcid.org/0000-0001-9564-3110","contributorId":3393,"corporation":false,"usgs":true,"family":"Bayer","given":"Jennifer","email":"jbayer@usgs.gov","middleInitial":"M.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true},{"id":5077,"text":"Northwest Regional Director's Office","active":true,"usgs":true},{"id":5067,"text":"Northeast Regional Director's Office","active":true,"usgs":true}],"preferred":true,"id":430219,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Li, Weiming","contributorId":65440,"corporation":false,"usgs":true,"family":"Li","given":"Weiming","affiliations":[],"preferred":false,"id":430223,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70031137,"text":"70031137 - 2006 - Geodetic observations and modeling of magmatic inflation at the Three Sisters volcanic center, central Oregon Cascade Range, USA","interactions":[],"lastModifiedDate":"2019-04-01T08:42:15","indexId":"70031137","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Geodetic observations and modeling of magmatic inflation at the Three Sisters volcanic center, central Oregon Cascade Range, USA","docAbstract":"Tumescence at the Three Sisters volcanic center began sometime between summer 1996 and summer 1998 and was discovered in April 2001 using interferometric synthetic aperture radar (InSAR). Swelling is centered about 5 km west of the summit of South Sister, a composite basaltic-andesite to rhyolite volcano that last erupted between 2200 and 2000 yr ago, and it affects an area ∼20 km in diameter within the Three Sisters Wilderness. Yearly InSAR observations show that the average maximum displacement rate was 3–5 cm/yr through summer 2001, and the velocity of a continuous GPS station within the deforming area was essentially constant from June 2001 to June 2004. The background level of seismic activity has been low, suggesting that temperatures in the source region are high enough or the strain rate has been low enough to favor plastic deformation over brittle failure. A swarm of about 300 small earthquakes (Mmax = 1.9) in the northeast quadrant of the deforming area on March 23–26, 2004, was the first notable seismicity in the area for at least two decades. The U.S. Geological Survey (USGS) established tilt-leveling and EDM networks at South Sister in 1985–1986, resurveyed them in 2001, the latter with GPS, and extended them to cover more of the deforming area. The 2001 tilt-leveling results are consistent with the inference drawn from InSAR that the current deformation episode did not start before 1996, i.e., the amount of deformation during 1995–2001 from InSAR fully accounts for the net tilt at South Sister during 1985–2001 from tilt-leveling. Subsequent InSAR, GPS, and leveling observations constrain the source location, geometry, and inflation rate as a function of time. A best-fit source model derived from simultaneous inversion of all three datasets is a dipping sill located 6.5 ± 2.5 km below the surface with a volume increase of 5.0 × 106 ± 1.5 × 106m3/yr (95% confidence limits). The most likely cause of tumescence is a pulse of basaltic magma intruding the upper crust along the brittle–ductile interface — a process that must occur episodically beneath the Cascade Range but in the past would have escaped detection in the absence of unusual seismicity. We speculate that such intrusive episodes last from days to years and are separated by quiescent periods of decades to centuries. The likelihood that the current episode at Three Sisters will culminate in an eruption is judged to be low, but the impact of an eruption could be great. The USGS has updated its volcano hazards assessment for the Three Sisters region, notified appropriate agencies and the public, and is helping to prepare an emergency coordination and communication plan.
","language":"English","publisher":"Elsevier Science","doi":"10.1016/j.jvolgeores.2005.07.011","issn":"03770273","usgsCitation":"Dzurisin, D., Lisowski, M., Wicks, C., Poland, M., and Endo, E.T., 2006, Geodetic observations and modeling of magmatic inflation at the Three Sisters volcanic center, central Oregon Cascade Range, USA: Journal of Volcanology and Geothermal Research, v. 150, no. 1-3, p. 35-54, https://doi.org/10.1016/j.jvolgeores.2005.07.011.","productDescription":"20 p.","startPage":"35","endPage":"54","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":238783,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Central Oregon Cascade Range, Three Sisters volcanic center","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121,\n 44.5\n ],\n [\n -121,\n 43.5\n ],\n [\n -122.5,\n 43.5\n ],\n [\n -122.5,\n 44.5\n ],\n [\n -121,\n 44.5\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"150","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a173de4b0c8380cd55441","contributors":{"authors":[{"text":"Dzurisin, Daniel 0000-0002-0138-5067 dzurisin@usgs.gov","orcid":"https://orcid.org/0000-0002-0138-5067","contributorId":538,"corporation":false,"usgs":true,"family":"Dzurisin","given":"Daniel","email":"dzurisin@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":430208,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lisowski, Michael 0000-0003-4818-2504 mlisowski@usgs.gov","orcid":"https://orcid.org/0000-0003-4818-2504","contributorId":637,"corporation":false,"usgs":true,"family":"Lisowski","given":"Michael","email":"mlisowski@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"preferred":true,"id":430207,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wicks, Charles W. Jr. cwicks@usgs.gov","contributorId":3476,"corporation":false,"usgs":true,"family":"Wicks","given":"Charles W.","suffix":"Jr.","email":"cwicks@usgs.gov","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":430205,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Poland, Michael P. 0000-0001-5240-6123","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":105847,"corporation":false,"usgs":true,"family":"Poland","given":"Michael P.","affiliations":[],"preferred":false,"id":430209,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Endo, Elliot T.","contributorId":10439,"corporation":false,"usgs":true,"family":"Endo","given":"Elliot","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":430206,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031136,"text":"70031136 - 2006 - Detrital zircon provenance of the Late Triassic Songpan-Ganzi complex: Sedimentary record of collision of the North and South China blocks","interactions":[],"lastModifiedDate":"2023-04-14T13:56:50.490695","indexId":"70031136","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Detrital zircon provenance of the Late Triassic Songpan-Ganzi complex: Sedimentary record of collision of the North and South China blocks","docAbstract":"Using detrital zircon geochronology, turbidite deposystems fed from distinct sediment sources can be distinguished within the Songpan-Ganzi complex, a collapsed Middle to Late Triassic turbidite basin of central China. A southern Songpan-Ganzi deposystem initially was sourced solely by erosion of the Qinling-Dabie orogen during early Late Triassic time, then by Qinling-Dabie orogen, North China block, and South China block sources during middle to late Late Triassic time. A northern Songpan-Ganzi system was sourced by erosion of the Qinling-Dabie orogen and the North China block throughout its deposition. These separate deposystems were later tectonically amalgamated to form one complex and then uplifted as the eastern Tibet Plateau. ?? 2006 Geological Society of America.","language":"English","publisher":"Geological Society of America","doi":"10.1130/G21929.1","usgsCitation":"Weislogel, A., Graham, S.A., Chang, E.Z., Wooden, J., Gehrels, G., and Yang, H., 2006, Detrital zircon provenance of the Late Triassic Songpan-Ganzi complex: Sedimentary record of collision of the North and South China blocks: Geology, v. 34, no. 2, p. 97-100, https://doi.org/10.1130/G21929.1.","productDescription":"4 p.","startPage":"97","endPage":"100","numberOfPages":"4","costCenters":[],"links":[{"id":238749,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"China","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 100,\n 35.25\n ],\n [\n 100,\n 29.75\n ],\n [\n 106,\n 29.75\n ],\n [\n 106,\n 35.25\n ],\n [\n 100,\n 35.25\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"34","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0000e4b0c8380cd4f521","contributors":{"authors":[{"text":"Weislogel, Amy","contributorId":243156,"corporation":false,"usgs":false,"family":"Weislogel","given":"Amy","email":"","affiliations":[{"id":48650,"text":"West Virginia University,Department of Geology and Geography","active":true,"usgs":false}],"preferred":false,"id":430201,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Graham, Stephan A.","contributorId":45902,"corporation":false,"usgs":true,"family":"Graham","given":"Stephan","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430204,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chang, E. Z.","contributorId":8287,"corporation":false,"usgs":false,"family":"Chang","given":"E.","email":"","middleInitial":"Z.","affiliations":[],"preferred":false,"id":430199,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wooden, Joseph L.","contributorId":32209,"corporation":false,"usgs":true,"family":"Wooden","given":"Joseph L.","affiliations":[],"preferred":false,"id":430203,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gehrels, George E.","contributorId":270803,"corporation":false,"usgs":false,"family":"Gehrels","given":"George E.","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":430200,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Yang, H.","contributorId":48385,"corporation":false,"usgs":true,"family":"Yang","given":"H.","email":"","affiliations":[],"preferred":false,"id":430202,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70031121,"text":"70031121 - 2006 - PEPA-1* genotype affects return rate for hatchery steelhead","interactions":[],"lastModifiedDate":"2016-05-23T15:58:48","indexId":"70031121","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"PEPA-1* genotype affects return rate for hatchery steelhead","docAbstract":"Allozymes continue to be useful as genetic markers in a variety of studies; however, their utility often hinges on the selective neutrality of the allelic variation. Our study tested for neutrality between the two most common alleles (*100 and *110) at the cytosol nonspecific dipeptidase locus (PEPA-1*) in steelhead Oncorhynchus mykiss from Dworshak National Fish Hatchery in Idaho. We tested for differential growth and survival among fish with the * 100/100, *100/ 110, and *110/110 genotypes rearing in a hatchery or a natural stream. We repeated the study for two year-classes, using heterozygous (*100/110) adults to make the experimental crosses. This design avoided differences in family contribution among genotypes because each cross produced all three genotypes. We divided the progeny from each family into two groups. One group was reared in a hatchery for 1 year and then released for migration to the sea and subsequent return to the hatchery as adults. The other group was released into a natural stream and monitored for 3 years. We found no significant differences in size or survival among PEPA-1* genotypes for either the naturally reared fish or the hatchery-reared fish immediately prior to release as smolts. For females, survival to returning adult also was similar among genotypes; however, hatchery-reared males with the *110/110 genotype returned at a higher rate than did males with the *100/ 100 genotype; heterozygous males were intermediate. These results indicate that selection occurs at the PEPA-1* locus or at one or more loci tightly linked to it. The finding of nearly equal frequencies for these two alleles in the source population suggests that selection differentials among genotypes reverse or vary from year to year; otherwise, steady directional selection would drive the *100 allele to low frequencies or extinction. Locus PEPA-1* seems inappropriate for genetic marks in studies of steelhead that span the full life cycle and probably should be avoided for any portion of the life cycle. Inferences about gene flow and population structure from studies that are substantially influenced by PEPA-1* allele frequencies might be misleading. ?? Copyright by the American Fisheries Society 2006.
","language":"English","publisher":"Taylor & Francis","doi":"10.1577/T04-222.1","issn":"00028487","usgsCitation":"Reisenbichler, R., Hayes, M., Rubin, S., Wetzel, L., and Baker, B., 2006, PEPA-1* genotype affects return rate for hatchery steelhead: Transactions of the American Fisheries Society, v. 135, no. 1, p. 28-39, https://doi.org/10.1577/T04-222.1.","productDescription":"12 p.","startPage":"28","endPage":"39","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":238543,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211279,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T04-222.1"}],"volume":"135","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"505a7346e4b0c8380cd76f41","contributors":{"authors":[{"text":"Reisenbichler, R.R.","contributorId":77356,"corporation":false,"usgs":true,"family":"Reisenbichler","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":430127,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayes, M.C.","contributorId":59596,"corporation":false,"usgs":true,"family":"Hayes","given":"M.C.","email":"","affiliations":[],"preferred":false,"id":430126,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rubin, S.P.","contributorId":98941,"corporation":false,"usgs":true,"family":"Rubin","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":430128,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wetzel, L.A.","contributorId":41213,"corporation":false,"usgs":true,"family":"Wetzel","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":430124,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Baker, B.M.","contributorId":51979,"corporation":false,"usgs":true,"family":"Baker","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":430125,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031119,"text":"70031119 - 2006 - Real-time measurement of volcanic SO2 emissions: Validation of a new UV correlation spectrometer (FLYSPEC)","interactions":[],"lastModifiedDate":"2019-04-08T15:29:40","indexId":"70031119","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Real-time measurement of volcanic SO2 emissions: Validation of a new UV correlation spectrometer (FLYSPEC)","docAbstract":"A miniaturized, lightweight and low-cost UV correlation spectrometer, the FLYSPEC, has been developed as an alternative for the COSPEC, which has long been the mainstay for monitoring volcanic sulfur dioxide fluxes. Field experiments have been conducted with the FLYSPEC at diverse volcanic systems, including Masaya (Nicaragua), Poás (Costa Rica), Stromboli, Etna and Vulcano (Italy), Villarica (Chile) and Kilauea (USA). We present here those validation measurements that were made simultaneously with COSPEC at Kilauea between March 2002 and February 2003. These experiments, with source emission rates that ranged from 95 to 1,560 t d−1, showed statistically identical results from both instruments. SO2 path-concentrations ranged from 0 to >1,000 ppm-m with average correlation coefficients greater than r2=0.946. The small size and low cost create the opportunity for FLYSPEC to be used in novel deployment modes that have the potential to revolutionize the manner in which volcanic and industrial monitoring is performed.
","language":"English","publisher":"Springer International","doi":"10.1007/s00445-005-0014-9","issn":"02588900","usgsCitation":"Horton, K.A., Williams-Jones, G., Garbeil, H., Elias, T., Sutton, A.J., Mouginis-Mark, P.J., Porter, J.T., and Clegg, S., 2006, Real-time measurement of volcanic SO2 emissions: Validation of a new UV correlation spectrometer (FLYSPEC): Bulletin of Volcanology, v. 68, no. 4, p. 323-327, https://doi.org/10.1007/s00445-005-0014-9.","startPage":"323","endPage":"327","numberOfPages":"5","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":239047,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211705,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00445-005-0014-9"}],"volume":"68","issue":"4","noUsgsAuthors":false,"publicationDate":"2005-12-09","publicationStatus":"PW","scienceBaseUri":"505a95a6e4b0c8380cd81b55","contributors":{"authors":[{"text":"Horton, Keith A.","contributorId":174446,"corporation":false,"usgs":false,"family":"Horton","given":"Keith","email":"","middleInitial":"A.","affiliations":[{"id":17202,"text":"University of Hawaii, Manoa","active":true,"usgs":false}],"preferred":false,"id":430113,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams-Jones, Glyn","contributorId":147765,"corporation":false,"usgs":false,"family":"Williams-Jones","given":"Glyn","email":"","affiliations":[{"id":16928,"text":"Department of Earth Sciences, Simon Fraser University, Canada","active":true,"usgs":false}],"preferred":false,"id":430110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Garbeil, Harold","contributorId":174447,"corporation":false,"usgs":false,"family":"Garbeil","given":"Harold","email":"","affiliations":[{"id":17202,"text":"University of Hawaii, Manoa","active":true,"usgs":false}],"preferred":false,"id":430116,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Elias, Tamar 0000-0002-9592-4518 telias@usgs.gov","orcid":"https://orcid.org/0000-0002-9592-4518","contributorId":3916,"corporation":false,"usgs":true,"family":"Elias","given":"Tamar","email":"telias@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":430115,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sutton, A. Jeff","contributorId":45605,"corporation":false,"usgs":true,"family":"Sutton","given":"A.","email":"","middleInitial":"Jeff","affiliations":[],"preferred":false,"id":430109,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mouginis-Mark, Peter J.","contributorId":120331,"corporation":false,"usgs":true,"family":"Mouginis-Mark","given":"Peter","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":430111,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Porter, John T.","contributorId":32232,"corporation":false,"usgs":true,"family":"Porter","given":"John","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":430114,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Clegg, Steven","contributorId":176916,"corporation":false,"usgs":false,"family":"Clegg","given":"Steven","email":"","affiliations":[],"preferred":false,"id":430112,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70031110,"text":"70031110 - 2006 - Updated streamflow reconstructions for the Upper Colorado River Basin","interactions":[],"lastModifiedDate":"2018-04-03T11:16:30","indexId":"70031110","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Updated streamflow reconstructions for the Upper Colorado River Basin","docAbstract":"Updated proxy reconstructions of water year (October–September) streamflow for four key gauges in the Upper Colorado River Basin were generated using an expanded tree ring network and longer calibration records than in previous efforts. Reconstructed gauges include the Green River at Green River, Utah; Colorado near Cisco, Utah; San Juan near Bluff, Utah; and Colorado at Lees Ferry, Arizona. The reconstructions explain 72–81% of the variance in the gauge records, and results are robust across several reconstruction approaches. Time series plots as well as results of cross‐spectral analysis indicate strong spatial coherence in runoff variations across the subbasins. The Lees Ferry reconstruction suggests a higher long‐term mean than previous reconstructions but strongly supports earlier findings that Colorado River allocations were based on one of the wettest periods in the past 5 centuries and that droughts more severe than any 20th to 21st century event occurred in the past.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2005WR004455","usgsCitation":"Woodhouse, C.A., Gray, S., and Meko, D.M., 2006, Updated streamflow reconstructions for the Upper Colorado River Basin: Water Resources Research, v. 42, no. 5, Article W05415; 16 p., https://doi.org/10.1029/2005WR004455.","productDescription":"Article W05415; 16 p.","costCenters":[],"links":[{"id":238910,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Upper Colorado River Basin","volume":"42","issue":"5","noUsgsAuthors":false,"publicationDate":"2006-05-11","publicationStatus":"PW","scienceBaseUri":"505bbd1ce4b08c986b328ece","contributors":{"authors":[{"text":"Woodhouse, Connie A.","contributorId":187601,"corporation":false,"usgs":false,"family":"Woodhouse","given":"Connie","email":"","middleInitial":"A.","affiliations":[{"id":32413,"text":"University of Arizona, Tucson, AZ, USA, 85721","active":true,"usgs":false}],"preferred":false,"id":430076,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gray, Stephen T. sgray@usgs.gov","contributorId":221,"corporation":false,"usgs":true,"family":"Gray","given":"Stephen T.","email":"sgray@usgs.gov","affiliations":[{"id":107,"text":"Alaska Climate Science Center","active":true,"usgs":true}],"preferred":true,"id":430074,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meko, David M.","contributorId":145887,"corporation":false,"usgs":false,"family":"Meko","given":"David","email":"","middleInitial":"M.","affiliations":[{"id":6624,"text":"University of Arizona, Laboratory of Tree-Ring Research","active":true,"usgs":false}],"preferred":false,"id":430075,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031097,"text":"70031097 - 2006 - Mass balance assessment for mercury in Lake Champlain","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70031097","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Mass balance assessment for mercury in Lake Champlain","docAbstract":"A mass balance model for mercury in Lake Champlain was developed in an effort to understand the sources, inventories, concentrations, and effects of mercury (Hg) contamination in the lake ecosystem. To construct the mass balance model, air, water, and sediment were sampled as a part of this project and other research/monitoring projects in the Lake Champlain Basin. This project produced a STELLA-based computer model and quantitative apportionments of the principal input and output pathways of Hg for each of 13 segments in the lake. The model Hg concentrations in the lake were consistent with measured concentrations. Specifically, the modeling identified surface water inflows as the largest direct contributor of Hg into the lake. Direct wet deposition to the lake was the second largest source of Hg followed by direct dry deposition. Volatilization and sedimentation losses were identified as the two major removal mechanisms. This study significantly improves previous estimates of the relative importance of Hg input pathways and of wet and dry deposition fluxes of Hg into Lake Champlain. It also provides new estimates of volatilization fluxes across different lake segments and sedimentation loss in the lake. ?? 2006 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es050513b","issn":"0013936X","usgsCitation":"Gao, N., Armatas, N., Shanley, J.B., Kamman, N., Miller, E., Keeler, G., Scherbatskoy, T., Holsen, T., Young, T., McIlroy, L., Drake, S., Olsen, B., and Cady, C., 2006, Mass balance assessment for mercury in Lake Champlain: Environmental Science & Technology, v. 40, no. 1, p. 82-89, https://doi.org/10.1021/es050513b.","startPage":"82","endPage":"89","numberOfPages":"8","costCenters":[],"links":[{"id":211397,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es050513b"},{"id":238680,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"1","noUsgsAuthors":false,"publicationDate":"2005-11-30","publicationStatus":"PW","scienceBaseUri":"505a5246e4b0c8380cd6c2c1","contributors":{"authors":[{"text":"Gao, N.","contributorId":11405,"corporation":false,"usgs":true,"family":"Gao","given":"N.","email":"","affiliations":[],"preferred":false,"id":430004,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Armatas, N.G.","contributorId":74572,"corporation":false,"usgs":true,"family":"Armatas","given":"N.G.","email":"","affiliations":[],"preferred":false,"id":430012,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shanley, J. 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The dipole moment contains intensity of magnetization information but lacks shape information. Unlike dipole, higher-order moments, such as quadrupole and octupole, encode asymmetry properties of magnetization distribution within buried targets. In order to improve our understanding of magnetization distribution within UXO and non-UXO objects and its potential utility in UXO clearance, we present results of a 3D numerical modeling study for highly susceptible metallic objects. The basis for modeling is the solution of a nonlinear integral equation, describing magnetization within isolated objects, allowing us to compute magnetic moments of the object, analyze their relationships, and provide a depiction of the surface anomaly produced by the different moments within the object. Our modeling results show significant high-order moments for more asymmetric objects situated at typical UXO burial depths, and suggest that the increased relative contribution to magnetic gradient data from these higher-order moments may provide a practical tool for improved UXO discrimination. ?? 2005 Society of Exploration Geophysicists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"SEG Technical Program Expanded Abstracts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1190/1.2369777","issn":"10523812","usgsCitation":"Sanchez, V., Li, Y., Nabighian, M., and Wright, D., 2006, Relative importance of magnetic moments in UXO clearance applications: SEG Technical Program Expanded Abstracts, v. 25, no. 1, p. 1381-1385, https://doi.org/10.1190/1.2369777.","startPage":"1381","endPage":"1385","numberOfPages":"5","costCenters":[],"links":[{"id":211369,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1190/1.2369777"},{"id":238648,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"1","noUsgsAuthors":false,"publicationDate":"2006-10-06","publicationStatus":"PW","scienceBaseUri":"505aa685e4b0c8380cd84ecb","contributors":{"authors":[{"text":"Sanchez, V.","contributorId":107407,"corporation":false,"usgs":true,"family":"Sanchez","given":"V.","email":"","affiliations":[],"preferred":false,"id":430002,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Li, Y.","contributorId":41394,"corporation":false,"usgs":true,"family":"Li","given":"Y.","affiliations":[],"preferred":false,"id":430000,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nabighian, M.","contributorId":83286,"corporation":false,"usgs":true,"family":"Nabighian","given":"M.","email":"","affiliations":[],"preferred":false,"id":430001,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wright, D.","contributorId":6158,"corporation":false,"usgs":true,"family":"Wright","given":"D.","email":"","affiliations":[],"preferred":false,"id":429999,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031095,"text":"70031095 - 2006 - Time-lapse seismic study of levees in southern New Mexico","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70031095","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3317,"text":"SEG Technical Program Expanded Abstracts","active":true,"publicationSubtype":{"id":10}},"title":"Time-lapse seismic study of levees in southern New Mexico","docAbstract":"The primary objective of this work was to measure changes in compressional- (Vp) and shear-wave (Vs) velocities in an earthen levee during a ponding experiment designed to simulate flood conditions on the Rio Grande in south New Mexico. Although similar to such experiment, performed an year earlier on the Rio Grande in south Texas, the levee seismic response results are different. This work was similar to previous Preliminary testing at three levee sites, all within a 1 km radius and each with unique physical, EM, and core characteristics, was completed and a single low-conductivity, highly fractured site was selected for investigation. Several different types of seismic data were recorded. Seismic data analysis techniques appraised included P-refraction tomography and Rayleigh surface-wave analysis using multichannel analysis of surface waves (MASW). P-wave velocity change (decrease) was rapid and isolated to one section within the pool confines, which already had anomalously high velocity most likely related to burrowing animals modification of the levee structure. S-wave velocity change was gradual and could be observed along the whole width of the pond within and below the levee. The results within the levee sand core were consistent with the observations of sand S-wave velocity changed due to saturation. ?? 2005 Society of Exploration Geophysicists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"SEG Technical Program Expanded Abstracts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1190/1.2370207","issn":"10523812","usgsCitation":"Ivanov, J., Miller, R., Stimac, N., Ballard, R., Dunbar, J.J., and Smullen, S.S., 2006, Time-lapse seismic study of levees in southern New Mexico: SEG Technical Program Expanded Abstracts, v. 25, no. 1, p. 3255-3259, https://doi.org/10.1190/1.2370207.","startPage":"3255","endPage":"3259","numberOfPages":"5","costCenters":[],"links":[{"id":211368,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1190/1.2370207"},{"id":238647,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"1","noUsgsAuthors":false,"publicationDate":"2006-10-06","publicationStatus":"PW","scienceBaseUri":"505bb3c7e4b08c986b325fbf","contributors":{"authors":[{"text":"Ivanov, J.","contributorId":107068,"corporation":false,"usgs":true,"family":"Ivanov","given":"J.","email":"","affiliations":[],"preferred":false,"id":429998,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, R. D.","contributorId":92693,"corporation":false,"usgs":true,"family":"Miller","given":"R. D.","affiliations":[],"preferred":false,"id":429997,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stimac, N.","contributorId":76543,"corporation":false,"usgs":true,"family":"Stimac","given":"N.","email":"","affiliations":[],"preferred":false,"id":429996,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ballard, R.F. Jr.","contributorId":61637,"corporation":false,"usgs":true,"family":"Ballard","given":"R.F.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":429994,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dunbar, J. Joseph","contributorId":45110,"corporation":false,"usgs":true,"family":"Dunbar","given":"J.","email":"","middleInitial":"Joseph","affiliations":[],"preferred":false,"id":429993,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Smullen, S. Steve","contributorId":63217,"corporation":false,"usgs":true,"family":"Smullen","given":"S.","email":"","middleInitial":"Steve","affiliations":[],"preferred":false,"id":429995,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70031093,"text":"70031093 - 2006 - Interactive effects of substrate, hydroperiod, and nutrients on seedling growth of Salix nigra and Taxodium distichum","interactions":[],"lastModifiedDate":"2017-02-17T14:16:24","indexId":"70031093","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1575,"text":"Environmental and Experimental Botany","active":true,"publicationSubtype":{"id":10}},"title":"Interactive effects of substrate, hydroperiod, and nutrients on seedling growth of Salix nigra and Taxodium distichum","docAbstract":"The large river swamps of Louisiana have complex topography and hydrology, characterized by black willow (Salix nigra) dominance on accreting alluvial sediments and vast areas of baldcypress (Taxodium distichum) deepwater swamps with highly organic substrates. Seedling survival of these two wetland tree species is influenced by their growth rate in relation to the height and duration of annual flooding in riverine environments. This study examines the interactive effects of substrate, hydroperiod, and nutrients on growth rates of black willow and baldcypress seedlings. In a greenhouse experiment with a split-split-plot design, 1-year seedlings of black willow and baldcypress were subjected to two nutrient treatments (unfertilized versus fertilized), two hydroperiods (continuously flooded versus twice daily flooding/draining), and two substrates (sand versus commercial peat mix). Response variables included height, diameter, lateral branch count, biomass, and root:stem ratio. Black willow growth in height and diameter, as well as all biomass components, were significantly greater in peat substrate than in sand. Black willow showed a significant hydroperiod-nutrient interaction wherein fertilizer increased stem and root biomass under drained conditions, but flooded plants did not respond to fertilization. Baldcypress diameter and root biomass were higher in peat than in sand, and the same two variables increased with fertilization in flooded as well as drained treatments. These results can be used in Louisiana wetland forest models as inputs of seedling growth and survival, regeneration potential, and biomass accumulation rates of black willow and baldcypress.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.envexpbot.2004.10.009","issn":"00988472","usgsCitation":"Day, R.H., Doyle, T., and Draugelis-Dale, R., 2006, Interactive effects of substrate, hydroperiod, and nutrients on seedling growth of Salix nigra and Taxodium distichum: Environmental and Experimental Botany, v. 55, no. 1-2, p. 163-174, https://doi.org/10.1016/j.envexpbot.2004.10.009.","productDescription":"12 p.","startPage":"163","endPage":"174","costCenters":[],"links":[{"id":238614,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3cdde4b0c8380cd630eb","contributors":{"authors":[{"text":"Day, Richard H. 0000-0002-5959-7054 dayr@usgs.gov","orcid":"https://orcid.org/0000-0002-5959-7054","contributorId":2427,"corporation":false,"usgs":true,"family":"Day","given":"Richard","email":"dayr@usgs.gov","middleInitial":"H.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":429987,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doyle, T.W. 0000-0001-5754-0671","orcid":"https://orcid.org/0000-0001-5754-0671","contributorId":16783,"corporation":false,"usgs":true,"family":"Doyle","given":"T.W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":429986,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Draugelis-Dale, R. 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B. III","contributorId":106444,"corporation":false,"usgs":true,"family":"Kristan","given":"W. B.","suffix":"III","affiliations":[],"preferred":false,"id":429985,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, J. M.","contributorId":55766,"corporation":false,"usgs":true,"family":"Scott","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":429984,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031091,"text":"70031091 - 2006 - Mapping stream habitats with a global positioning system: Accuracy, precision, and comparison with traditional methods","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70031091","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1547,"text":"Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Mapping stream habitats with a global positioning system: Accuracy, precision, and comparison with traditional methods","docAbstract":"We tested the precision and accuracy of the Trimble GeoXT??? global positioning system (GPS) handheld receiver on point and area features and compared estimates of stream habitat dimensions (e.g., lengths and areas of riffles and pools) that were made in three different Oklahoma streams using the GPS receiver and a tape measure. The precision of differentially corrected GPS (DGPS) points was not affected by the number of GPS position fixes (i.e., geographic location estimates) averaged per DGPS point. Horizontal error of points ranged from 0.03 to 2.77 m and did not differ with the number of position fixes per point. The error of area measurements ranged from 0.1% to 110.1% but decreased as the area increased. Again, error was independent of the number of position fixes averaged per polygon corner. The estimates of habitat lengths, widths, and areas did not differ when measured using two methods of data collection (GPS and a tape measure), nor did the differences among methods change at three stream sites with contrasting morphologies. Measuring features with a GPS receiver was up to 3.3 times faster on average than using a tape measure, although signal interference from high streambanks or overhanging vegetation occasionally limited satellite signal availability and prolonged measurements with a GPS receiver. There were also no differences in precision of habitat dimensions when mapped using a continuous versus a position fix average GPS data collection method. Despite there being some disadvantages to using the GPS in stream habitat studies, measuring stream habitats with a GPS resulted in spatially referenced data that allowed the assessment of relative habitat position and changes in habitats over time, and was often faster than using a tape measure. For most spatial scales of interest, the precision and accuracy of DGPS data are adequate and have logistical advantages when compared to traditional methods of measurement. ?? 2006 Springer Science+Business Media, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00267-004-0270-z","issn":"0364152X","usgsCitation":"Dauwalter, D., Fisher, W., and Belt, K., 2006, Mapping stream habitats with a global positioning system: Accuracy, precision, and comparison with traditional methods: Environmental Management, v. 37, no. 2, p. 271-280, https://doi.org/10.1007/s00267-004-0270-z.","startPage":"271","endPage":"280","numberOfPages":"10","costCenters":[],"links":[{"id":211338,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00267-004-0270-z"},{"id":238612,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"2","noUsgsAuthors":false,"publicationDate":"2005-12-27","publicationStatus":"PW","scienceBaseUri":"505a5076e4b0c8380cd6b6d7","contributors":{"authors":[{"text":"Dauwalter, D.C.","contributorId":91687,"corporation":false,"usgs":true,"family":"Dauwalter","given":"D.C.","affiliations":[],"preferred":false,"id":429983,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fisher, W.L.","contributorId":87713,"corporation":false,"usgs":true,"family":"Fisher","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":429982,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Belt, K.C.","contributorId":7497,"corporation":false,"usgs":true,"family":"Belt","given":"K.C.","email":"","affiliations":[],"preferred":false,"id":429981,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031089,"text":"70031089 - 2006 - Crustal contamination and crystal entrapment during polybaric magma evolution at Mt. Somma-Vesuvius volcano, Italy: Geochemical and Sr isotope evidence","interactions":[],"lastModifiedDate":"2013-02-22T20:50:15","indexId":"70031089","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2588,"text":"LITHOS","active":true,"publicationSubtype":{"id":10}},"title":"Crustal contamination and crystal entrapment during polybaric magma evolution at Mt. Somma-Vesuvius volcano, Italy: Geochemical and Sr isotope evidence","docAbstract":"New major and trace element analyses and Sr-isotope determinations of rocks from Mt. Somma-Vesuvius volcano produced from 25 ky BP to 1944 AD are part of an extensive database documenting the geochemical evolution of this classic region. Volcanic rocks include silica undersaturated, potassic and ultrapotassic lavas and tephras characterized by variable mineralogy and different crystal abundance, as well as by wide ranges of trace element contents and a wide span of initial Sr-isotopic compositions. Both the degree of undersaturation in silica and the crystal content increase through time, being higher in rocks produced after the eruption at 472 AD (Pollena eruption). Compositional variations have been generally thought to reflect contributions from diverse types of mantle and crust. Magma mixing is commonly invoked as a fundamental process affecting the magmas, in addition to crystal fractionation. Our assessment of geochemical and Sr-isotopic data indicates that compositional variability also reflects the influence of crustal contamination during magma evolution during upward migration to shallow crustal levels and/or by entrapment of crystal mush generated during previous magma storage in the crust. Using a variant of the assimilation fractional crystallization model (Energy Conservation-Assimilation Fractional Crystallization; [Spera and Bohrson, 2001. Energy-constrained open-system magmatic processes I: General model and energy-constrained assimilation and fractional crystallization (EC-AFC) formulation. J. Petrol. 999-1018]; [Bohrson, W.A. and Spera, F.J., 2001. Energy-constrained open-system magmatic process II: application of energy-constrained assimilation-fractional crystallization (EC-AFC) model to magmatic systems. J. Petrol. 1019-1041]) we estimated the contributions from the crust and suggest that contamination by carbonate rocks that underlie the volcano (2 km down to 9-10 km) is a fundamental process controlling magma compositions at Mt. Somma-Vesuvius in the last 8 ky BP. Contamination in the mid- to upper crust occurred repeatedly, after the magma chamber waxed with influx of new mantle- and crustal-derived magmas and fluids, and waned as a result of magma withdrawal and production of large and energetic plinian and subplinian eruptions. ?? 2005 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"LITHOS","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.lithos.2005.05.009","issn":"00244937","usgsCitation":"Piochi, M., Ayuso, R., de Vivo, B., and Somma, R., 2006, Crustal contamination and crystal entrapment during polybaric magma evolution at Mt. Somma-Vesuvius volcano, Italy: Geochemical and Sr isotope evidence: LITHOS, v. 86, no. 3-4, p. 303-329, https://doi.org/10.1016/j.lithos.2005.05.009.","startPage":"303","endPage":"329","numberOfPages":"27","costCenters":[],"links":[{"id":211307,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.lithos.2005.05.009"},{"id":238576,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"86","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fcd9e4b0c8380cd4e47b","contributors":{"authors":[{"text":"Piochi, M.","contributorId":55204,"corporation":false,"usgs":true,"family":"Piochi","given":"M.","email":"","affiliations":[],"preferred":false,"id":429977,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ayuso, R. A. 0000-0002-8496-9534","orcid":"https://orcid.org/0000-0002-8496-9534","contributorId":27079,"corporation":false,"usgs":true,"family":"Ayuso","given":"R. A.","affiliations":[],"preferred":false,"id":429975,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"de Vivo, B.","contributorId":50549,"corporation":false,"usgs":false,"family":"de Vivo","given":"B.","affiliations":[],"preferred":false,"id":429976,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Somma, R.","contributorId":72977,"corporation":false,"usgs":true,"family":"Somma","given":"R.","affiliations":[],"preferred":false,"id":429978,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031088,"text":"70031088 - 2006 - Predictable hotspots and foraging habitat of the endangered short-tailed albatross (Phoebastria albatrus) in the North Pacific: Implications for conservation","interactions":[],"lastModifiedDate":"2017-07-19T15:17:50","indexId":"70031088","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1371,"text":"Deep-Sea Research Part II: Topical Studies in Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"Predictable hotspots and foraging habitat of the endangered short-tailed albatross (Phoebastria albatrus) in the North Pacific: Implications for conservation","docAbstract":"The short-tailed albatross (Phoebastria albatrus) is a rare and endangered seabird that ranges widely over the northern North Pacific. Populations are slowly recovering but birds face several threats at sea, in particular the incidental capture of birds in long-line fisheries. Conservation efforts are hampered by a lack of information about the at-sea distribution of this species, especially knowledge of where it may predictably co-occur with long-line fishing effort. During 18 years of transiting the Aleutian Islands Unit of the Alaska Maritime National Wildlife Refuge on a research vessel, we observed short-tailed albatross on 65 occasions. They were consistently observed near Ingenstrem Rocks (Buldir Pass) in the western Aleutians and near Seguam Pass in the central Aleutians. Based on the oceanographic characteristics of the locations where we saw most of the birds, we hypothesized that short-tailed albatross “hotspots” were located where tidal currents and steep bottom topography generate strong vertical mixing along the Aleutian Archipelago. As a test of this hypothesis, we analyzed a database containing 1432 opportunistic observations of 2463 short-tailed albatross at sea in the North Pacific. These data showed that short-tailed albatross were closely associated with shelf-edge habitats throughout the northern Gulf of Alaska and Bering Sea. In addition to Ingenstrem Rocks and Seguam Pass, important hotspots for short-tailed albatross in the Aleutians included Near Strait, Samalga Pass, and the shelf-edge south of Umnak/Unalaska islands. In the Bering Sea, hotspots were located along margins of Zhemchug, St. Matthews and Pervenets canyons. Because these short-tailed albatross hotspots are predictable, they are also protectable by regulation of threatening activities at local spatial scales.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.dsr2.2006.01.008","issn":"09670645","usgsCitation":"Piatt, J.F., Wetzel, J., Bell, K., DeGange, A., Balogh, G., Drew, G., Geernaert, T., Ladd, C., and Byrd, G., 2006, Predictable hotspots and foraging habitat of the endangered short-tailed albatross (Phoebastria albatrus) in the North Pacific: Implications for conservation: Deep-Sea Research Part II: Topical Studies in Oceanography, v. 53, no. 3-4, p. 387-398, https://doi.org/10.1016/j.dsr2.2006.01.008.","productDescription":"12 p.","startPage":"387","endPage":"398","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":238542,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211278,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.dsr2.2006.01.008"}],"volume":"53","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a818ae4b0c8380cd7b5a6","contributors":{"authors":[{"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":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":429972,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wetzel, J.","contributorId":64113,"corporation":false,"usgs":true,"family":"Wetzel","given":"J.","email":"","affiliations":[],"preferred":false,"id":429969,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bell, K.","contributorId":45971,"corporation":false,"usgs":true,"family":"Bell","given":"K.","email":"","affiliations":[],"preferred":false,"id":429967,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"DeGange, A.R.","contributorId":52105,"corporation":false,"usgs":true,"family":"DeGange","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":429968,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Balogh, G.R.","contributorId":74349,"corporation":false,"usgs":true,"family":"Balogh","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":429971,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Drew, G.S.","contributorId":95415,"corporation":false,"usgs":true,"family":"Drew","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":429973,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Geernaert, T.","contributorId":104350,"corporation":false,"usgs":true,"family":"Geernaert","given":"T.","email":"","affiliations":[],"preferred":false,"id":429974,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Ladd, C.","contributorId":68607,"corporation":false,"usgs":true,"family":"Ladd","given":"C.","email":"","affiliations":[],"preferred":false,"id":429970,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Byrd, G.V.","contributorId":39320,"corporation":false,"usgs":true,"family":"Byrd","given":"G.V.","email":"","affiliations":[],"preferred":false,"id":429966,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ]}