{"pageNumber":"870","pageRowStart":"21725","pageSize":"25","recordCount":46733,"records":[{"id":70069189,"text":"ofr20071047SRP017 - 2007 - Cenozoic Antarctic DiatomWare/BugCam: An aid for research and teaching","interactions":[],"lastModifiedDate":"2014-01-13T15:40:53","indexId":"ofr20071047SRP017","displayToPublicDate":"2007-01-01T15:28:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-017","title":"Cenozoic Antarctic DiatomWare/BugCam: An aid for research and teaching","docAbstract":"Cenozoic Antarctic DiatomWare/BugCam© is an interactive, icon-driven digital-image \ndatabase/software package that displays over 500 illustrated Cenozoic Antarctic diatom taxa along with original \ndescriptions (including over 100 generic and 20 family-group descriptions). This digital catalog is designed primarily \nfor use by micropaleontologists working in the field (at sea or on the Antarctic continent) where hard-copy literature \nresources are limited. This new package will also be useful for classroom/lab teaching as well as for any \npaleontologists making or refining taxonomic identifications at the microscope. The database (Cenozoic Antarctic \nDiatomWare) is displayed via a custom software program (BugCam) written in Visual Basic for use on PCs running \nWindows 95 or later operating systems. BugCam is a flexible image display program that utilizes an intuitive \nthumbnail “tree” structure for navigation through the database. The data are stored on Micrsosoft EXCEL spread \nsheets, hence no separate relational database program is necessary to run the package","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP017","usgsCitation":"Wise, S., Olney, M., Covington, J., Egerton, V., Jiang, S., Ramdeen, D., Kulhanek S., Schrader, H., Sims, P., Wood, A., Davis, A., Davenport, D., Doepler, N., Falcon, W., Lopez, C., Pressley, T., Swedberg, O., and Harwood, D., 2007, Cenozoic Antarctic DiatomWare/BugCam: An aid for research and teaching: U.S. Geological Survey Open-File Report 2007-1047-SRP-017, 4 p., https://doi.org/10.3133/ofr20071047SRP017.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280924,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP017.JPG"},{"id":280923,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp017/of2007-1047srp017.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd505be4b0b290850f3491","contributors":{"authors":[{"text":"Wise, S.W.","contributorId":30543,"corporation":false,"usgs":true,"family":"Wise","given":"S.W.","affiliations":[],"preferred":false,"id":488219,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Olney, 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D.K.","contributorId":106008,"corporation":false,"usgs":true,"family":"Ramdeen","given":"D.K.","email":"","affiliations":[],"preferred":false,"id":488231,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kulhanek S.","contributorId":128204,"corporation":true,"usgs":false,"organization":"Kulhanek S.","id":535618,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Schrader, H.","contributorId":47286,"corporation":false,"usgs":true,"family":"Schrader","given":"H.","email":"","affiliations":[],"preferred":false,"id":488223,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Sims, P.A.","contributorId":29733,"corporation":false,"usgs":true,"family":"Sims","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":488218,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Wood, 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W.","contributorId":36453,"corporation":false,"usgs":true,"family":"Falcon","given":"W.","email":"","affiliations":[],"preferred":false,"id":488221,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Lopez, C.","contributorId":63306,"corporation":false,"usgs":true,"family":"Lopez","given":"C.","email":"","affiliations":[],"preferred":false,"id":488225,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Pressley, T.","contributorId":36051,"corporation":false,"usgs":true,"family":"Pressley","given":"T.","email":"","affiliations":[],"preferred":false,"id":488220,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Swedberg, O.L.","contributorId":37251,"corporation":false,"usgs":true,"family":"Swedberg","given":"O.L.","email":"","affiliations":[],"preferred":false,"id":488222,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Harwood, D.M.","contributorId":10324,"corporation":false,"usgs":true,"family":"Harwood","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":488214,"contributorType":{"id":1,"text":"Authors"},"rank":18}]}}
,{"id":70047537,"text":"sir20075289B - 2007 - Tectonic setting and metallogenesis of volcanogenic massive sulfide deposits in the Bonnifield Mining District, Northern Alaska Range: Chapter B in <i>Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project</i>","interactions":[],"lastModifiedDate":"2018-10-22T10:57:48","indexId":"sir20075289B","displayToPublicDate":"2007-01-01T15:21:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-5289","chapter":"B","title":"Tectonic setting and metallogenesis of volcanogenic massive sulfide deposits in the Bonnifield Mining District, Northern Alaska Range: Chapter B in <i>Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project</i>","docAbstract":"This paper summarizes the results of field and laboratory investigations, including whole-rock geochemistry and \nradiogenic isotopes, of outcrop and drill core samples from \nvolcanogenic massive sulfide (VMS) deposits and associated \nmetaigneous rocks in the Wood River area of the Bonnifield \nmining district, northern Alaska Range (see fig. 1 of Editors’ \nPreface and Overview). U-Pb zircon igneous crystallization \nages from felsic rocks indicate a prolonged period of Late \nDevonian to Early Mississippian (373&plusmn;3 to 357&plusmn;4 million \nyears before present, or Ma) magmatism. This magmatism \noccurred in a basinal setting along the ancient Pacific margin \nof North America. The siliceous and carbonaceous compositions of metasedimentary rocks, Precambrian model ages \nbased on U-Pb dating of zircon and neodymium ages, and \nfor some units, radiogenic neodymium isotopic compositions and whole-rock trace-element ratios similar to those of \ncontinental crust are evidence for this setting. Red Mountain \n(also known as Dry Creek) and WTF, two of the largest \nVMS deposits, are hosted in peralkaline metarhyolite of the \nMystic Creek Member of the Totatlanika Schist. The Mystic \nCreek Member is distinctive in having high concentrations of \nhigh-field-strength elements (HFSE) and rare-earth elements \n(REE), indicative of formation in a within-plate (extensional) \nsetting. Mystic Creek metarhyolite is associated with alkalic, \nwithin-plate basalt of the Chute Creek Member; neodymium \nisotopic data indicate an enriched mantle component for both \nmembers of this bimodal (rhyolite-basalt) suite. Anderson \nMountain, the other significant VMS deposit, is hosted by \nthe Wood River assemblage. Metaigneous rocks in the Wood \nRiver assemblage span a wide compositional range, including \nandesitic rocks, which are characteristic of arc volcanism. Our \ndata suggest that the Mystic Creek Member likely formed in \nan extensional, back-arc basin that was associated with an outboard continental-margin volcanic arc that included rocks of the Wood River assemblage. We suggest that elevated HFSE \nand REE trace-element contents of metavolcanic rocks, whose \nmajor-element composition may have been altered, are an \nimportant prospecting tool for rocks of VMS deposit potential \nin east-central Alaska.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20075289B","collaboration":"This report is Chapter B in <i>Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project</i>.  For more information, see: <a href=\"http://pubs.usgs.gov/sir/2007/5289/\" target=\"_blank\">Scientific Investigation Report 2007-5289</a>.","usgsCitation":"Dusel-Bacon, C., Aleinikoff, J.N., Premo, W.R., Paradis, S., and Lohr-Schmidt, I., 2007, Tectonic setting and metallogenesis of volcanogenic massive sulfide deposits in the Bonnifield Mining District, Northern Alaska Range: Chapter B in <i>Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project</i>: U.S. Geological Survey Scientific Investigations Report 2007-5289, iii, 7 p., https://doi.org/10.3133/sir20075289B.","productDescription":"iii, 7 p.","numberOfPages":"12","costCenters":[{"id":244,"text":"Eastern Mineral Resources Science Center","active":false,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":276243,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20075289b.png"},{"id":276241,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2007/5289/"},{"id":276242,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2007/5289/SIR2007-5289-B.pdf"}],"country":"Canada;United States","state":"Alaska;Yukon","otherGeospatial":"Tintina Gold Province","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -163.0,59.0 ], [ -163.0,67.0 ], [ -126.0,67.0 ], [ -126.0,59.0 ], [ -163.0,59.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5204bdf0e4b0403aa6262a93","contributors":{"editors":[{"text":"Gough, Larry P. lgough@usgs.gov","contributorId":1230,"corporation":false,"usgs":true,"family":"Gough","given":"Larry","email":"lgough@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":509557,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Day, Warren C. 0000-0002-9278-2120 wday@usgs.gov","orcid":"https://orcid.org/0000-0002-9278-2120","contributorId":1308,"corporation":false,"usgs":true,"family":"Day","given":"Warren","email":"wday@usgs.gov","middleInitial":"C.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":509558,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":482298,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aleinikoff, John N. 0000-0003-3494-6841 jaleinikoff@usgs.gov","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":1478,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"John","email":"jaleinikoff@usgs.gov","middleInitial":"N.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":482296,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Premo, Wayne R. 0000-0001-9904-4801 wpremo@usgs.gov","orcid":"https://orcid.org/0000-0001-9904-4801","contributorId":1697,"corporation":false,"usgs":true,"family":"Premo","given":"Wayne","email":"wpremo@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":482297,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Paradis, Suzanne","contributorId":31666,"corporation":false,"usgs":true,"family":"Paradis","given":"Suzanne","email":"","affiliations":[],"preferred":false,"id":482299,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lohr-Schmidt, Ilana","contributorId":93370,"corporation":false,"usgs":true,"family":"Lohr-Schmidt","given":"Ilana","email":"","affiliations":[],"preferred":false,"id":482300,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70100462,"text":"ofr20071047SRP084 - 2007 - Differences in ice retreat across Pine Island Bay, West Antarctica, since the Last Glacial Maximum: Indications from multichannel seismic reflection data","interactions":[],"lastModifiedDate":"2014-04-01T15:45:20","indexId":"ofr20071047SRP084","displayToPublicDate":"2007-01-01T15:19:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-084","title":"Differences in ice retreat across Pine Island Bay, West Antarctica, since the Last Glacial Maximum: Indications from multichannel seismic reflection data","docAbstract":"An understanding of the glacial history of Pine Island Bay (PIB) is essential for refining models of the future \nstability of the West Antarctic Ice Sheet (WAIS). New multichannel seismic reflection data from inner PIB are \ninterpreted in context of previously published reconstructions for the retreat history in this area since the Last Glacial \nMaximum. Differences in the behavior of the ice sheet during deglaciation are shown to exist for the western and \neastern parts of PIB. While we can identify only a thin veneer of sedimentary deposits in western PIB, eastern PIB \nshows sedimentary layers ≤ 400 msTWT. This is interpreted as a result of differences in ice retreat: a fast ice retreat in \nwestern PIB accompanied by rapid basal melting led to production of large meltwater streams, a slower ice retreat in \neastern PIB is most probably the result of smaller drainage basins resulting in less meltwater production.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP084","usgsCitation":"Uenzelmann-Neben, G., Gohl, K., Larter, R., and Schluter, P., 2007, Differences in ice retreat across Pine Island Bay, West Antarctica, since the Last Glacial Maximum: Indications from multichannel seismic reflection data: U.S. Geological Survey Open-File Report 2007-1047-SRP-084, Report: 4 p.; Plate 1: 11.69 inches x 8.27 inches; Plate 2: 16.54 inches x 11.69 inches, https://doi.org/10.3133/ofr20071047SRP084.","productDescription":"Report: 4 p.; Plate 1: 11.69 inches x 8.27 inches; Plate 2: 16.54 inches x 11.69 inches","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":285265,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP084.JPG"},{"id":285261,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp084/of2007-1047srp084_plate1.pdf"},{"id":285262,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp084/of2007-1047srp084_plate2.pdf"},{"id":285263,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp084/of2007-1047srp084.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53559003e4b0120853e8bebe","contributors":{"authors":[{"text":"Uenzelmann-Neben, G.","contributorId":22682,"corporation":false,"usgs":true,"family":"Uenzelmann-Neben","given":"G.","email":"","affiliations":[],"preferred":false,"id":492233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gohl, K.","contributorId":53285,"corporation":false,"usgs":true,"family":"Gohl","given":"K.","email":"","affiliations":[],"preferred":false,"id":492234,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Larter, R.D.","contributorId":8765,"corporation":false,"usgs":true,"family":"Larter","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":492232,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schluter, P.","contributorId":102384,"corporation":false,"usgs":true,"family":"Schluter","given":"P.","email":"","affiliations":[],"preferred":false,"id":492235,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70093622,"text":"ofr20071047SRP039 - 2007 - Early Precambrian mantle derived rocks in the southern Prince Charles Mountains, East Antarctica: age and isotopic constraints","interactions":[],"lastModifiedDate":"2014-02-10T15:30:49","indexId":"ofr20071047SRP039","displayToPublicDate":"2007-01-01T15:17:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-039","title":"Early Precambrian mantle derived rocks in the southern Prince Charles Mountains, East Antarctica: age and isotopic constraints","docAbstract":"Mafic and ultramafic rocks occurring as lenses, boudins, and tectonic slabs within metamorphic units in the \nsouthern Mawson Escarpment display mantle characteristics of either a highly enriched, or highly depleted nature. \nFractionation of these mantle rocks from their sources may be as old as Eoarchaean (ca 3850 Ma) while their tectonic \nemplacement probably occurred prior to 2550 Ma (U-Pb SHRIMP data). These results provide for the first time \nevidence for Archaean suturing within East Antarctica. Similar upper mantle sources are likely present in the northern \nMawson Escarpment. A younger age limit of these rocks is 2200 Ma, as indicated by presumably metamorphic zircon \nages while their magmatic age may be constrained by single zircon dates at 2450-2250 Ma. The area of the northern \nMawson Escarpment is most likely of ensimatic origin and includes mafic rocks which were derived from distinct \nmantle source(s) during Palaeoproterozoic time.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP039","usgsCitation":"Mikhalsky, E., Henjes-Kunst, F., and Roland, N., 2007, Early Precambrian mantle derived rocks in the southern Prince Charles Mountains, East Antarctica: age and isotopic constraints: U.S. Geological Survey Open-File Report 2007-1047-SRP-039, 4 p., https://doi.org/10.3133/ofr20071047SRP039.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282233,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP039.JPG"},{"id":282232,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp039/of2007-1047srp039.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5602e4b0b290850f6ab1","contributors":{"authors":[{"text":"Mikhalsky, E.V.","contributorId":44831,"corporation":false,"usgs":true,"family":"Mikhalsky","given":"E.V.","email":"","affiliations":[],"preferred":false,"id":490092,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Henjes-Kunst, F.","contributorId":106409,"corporation":false,"usgs":true,"family":"Henjes-Kunst","given":"F.","email":"","affiliations":[],"preferred":false,"id":490094,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Roland, N.W.","contributorId":60535,"corporation":false,"usgs":true,"family":"Roland","given":"N.W.","email":"","affiliations":[],"preferred":false,"id":490093,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70047600,"text":"sir20075289E - 2007 - Mapping known and potential mineral occurrences and host rocks in the Bonnifield Mining District using minimal cloud- and snow-cover ASTER data: Chapter E in <i>Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project</i>","interactions":[],"lastModifiedDate":"2018-10-22T11:12:20","indexId":"sir20075289E","displayToPublicDate":"2007-01-01T15:16:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-5289","chapter":"E","title":"Mapping known and potential mineral occurrences and host rocks in the Bonnifield Mining District using minimal cloud- and snow-cover ASTER data: Chapter E in <i>Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project</i>","docAbstract":"On July 8, 2003, the Advanced Spaceborne Thermal \nEmission and Reflection Radiometer (ASTER) sensor \nacquired satellite imagery of a 60-kilometer-wide swath \ncovering a portion of the Bonnifield mining district within \nthe southernmost part of the Tintina Gold Province, Alaska, \nunder unusually favorable conditions of minimal cloud and \nsnow cover. Although rocks from more than eight different \nlithotectonic terranes are exposed within the extended swath of \ndata, we focus on volcanogenic massive sulfides (VMS) and \nporphyry deposits within the Yukon-Tanana terrane (YTT), \nthe largest Mesozoic accretionary terrane exposed between the \nDenali fault system to the south of Fairbanks and the Tintina \nfault system to the north of Fairbanks. \nComparison of thermal-infrared region (TIR) \ndecorrelation stretch data to available geologic maps indicates \nthat rocks from the YTT contain a wide range of rock types \nranging in composition from mafic metavolcanic rocks to \nfelsic rock types such as metarhyolites, pelitic schists, and \nquartzites. The nine-band ASTER visible-near-infrared \nregion--short-wave infrared region (VNIR-SWIR) reflectance \ndata and spectral matched-filter processing were used to map \nhydrothermal alteration patterns associated with VMS and \nporphyry deposit types. In particular, smectite, kaolinite, \nopaline silica, jarosite and (or) other ferric iron minerals \ndefined narrow (less than 250-meter diameter) zonal patterns \naround Red Mountain and other potential VMS targets. Using \nASTER we identified some of the known mineral deposits \nin the region, as well as mineralogically similar targets that \nmay represent potential undiscovered deposits. Some known \ndeposits were not identified and may have been obscured by \nvegetation or snow cover or were too small to be resolved.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20075289E","collaboration":"This report is Chapter E in <i>Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project</i>.  For more information, see: <a href=\"http://pubs.usgs.gov/sir/2007/5289/\" target=\"_blank\">Scientific Investigation Report 2007-5289</a>.","usgsCitation":"Hubbard, B.E., Dusel-Bacon, C., Rowan, L.C., and Eppinger, R.G., 2007, Mapping known and potential mineral occurrences and host rocks in the Bonnifield Mining District using minimal cloud- and snow-cover ASTER data: Chapter E in <i>Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project</i>: U.S. Geological Survey Scientific Investigations Report 2007-5289, iii, 8 p., https://doi.org/10.3133/sir20075289E.","productDescription":"iii, 8 p.","numberOfPages":"12","costCenters":[{"id":244,"text":"Eastern Mineral Resources Science Center","active":false,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":276589,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20075289e.png"},{"id":276587,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2007/5289/SIR2007-5289-E.pdf"},{"id":276588,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2007/5289/"}],"country":"Canada;United States","state":"Alaska;Yukon","otherGeospatial":"Tintina Gold Province","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -163.0,59.0 ], [ -163.0,67.0 ], [ -126.0,67.0 ], [ -126.0,59.0 ], [ -163.0,59.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"520b822be4b0d6ca46067dd1","contributors":{"editors":[{"text":"Gough, Larry P. lgough@usgs.gov","contributorId":1230,"corporation":false,"usgs":true,"family":"Gough","given":"Larry","email":"lgough@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":509570,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Day, Warren C. 0000-0002-9278-2120 wday@usgs.gov","orcid":"https://orcid.org/0000-0002-9278-2120","contributorId":1308,"corporation":false,"usgs":true,"family":"Day","given":"Warren","email":"wday@usgs.gov","middleInitial":"C.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":509571,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Hubbard, Bernard E. 0000-0002-9315-2032 bhubbard@usgs.gov","orcid":"https://orcid.org/0000-0002-9315-2032","contributorId":2342,"corporation":false,"usgs":true,"family":"Hubbard","given":"Bernard","email":"bhubbard@usgs.gov","middleInitial":"E.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":482486,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":482487,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rowan, Lawrence C.","contributorId":58629,"corporation":false,"usgs":true,"family":"Rowan","given":"Lawrence","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":482488,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Eppinger, Robert G. eppinger@usgs.gov","contributorId":849,"corporation":false,"usgs":true,"family":"Eppinger","given":"Robert","email":"eppinger@usgs.gov","middleInitial":"G.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":482485,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70074776,"text":"ofr20071047SRP033 - 2007 - Jurassic magmatism in Dronning Maud Land: synthesis of results of the MAMOG project","interactions":[],"lastModifiedDate":"2014-02-03T15:34:48","indexId":"ofr20071047SRP033","displayToPublicDate":"2007-01-01T15:13:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-033","title":"Jurassic magmatism in Dronning Maud Land: synthesis of results of the MAMOG project","docAbstract":"The Jurassic Karoo large igneous province (LIP) of Antarctica, and its conjugate margin in southern Africa, \nis critical for investigating important questions about the relationship of basaltic LIPs to mantle plumes. Detailed \naerogeophysical, structural, anisotropy of magnetic susceptibility (AMS), geochronological and geochemical \ninvestigations completed under the British Antarctic Survey’s MAMOG project have provided some of the answers. \nAcross most of the area, magma volumes were small compared to those in southern Africa. Jurassic dikes intruding the \nArchean craton are sparse and the Jutulstraumen trough, a Jurassic rift, is interpreted, from aerogeophysical data, as \nlargely amagmatic. The largest volumes of magma were emplaced along the margin of the craton and close to the \nAfrica-Antarctica rift. Although dikes were emplaced by both vertical and horizontal flow, overwhelmingly magmas in \nDronning Maud Land were locally derived, and not emplaced laterally from distant sources. Basaltic magmatism was \nprotracted in Dronning Maud Land (several dike emplacement episodes between ~206 and 175 Ma), and the small \nmagma volumes resulted in highly diverse magma compositions, including picrites and ferropicrites interpreted to have \nbeen derived from hot mantle in a mantle plume. The protracted magmatism before the locally ~177 Ma flood lava \neruptions, and evidence for a radiating dike swarm, favor a model of mantle plume incubation for 20-30 million years \nbefore flood lava eruption.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP033","usgsCitation":"Leat, P., Curtis, M., Riley, T., and Ferraccioli, F., 2007, Jurassic magmatism in Dronning Maud Land: synthesis of results of the MAMOG project: U.S. Geological Survey Open-File Report 2007-1047-SRP-033, 4 p., https://doi.org/10.3133/ofr20071047SRP033.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281930,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP033.JPG"},{"id":281926,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp033/of2007-1047srp033.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6364e4b0b290850fec3f","contributors":{"authors":[{"text":"Leat, P.T.","contributorId":54511,"corporation":false,"usgs":true,"family":"Leat","given":"P.T.","email":"","affiliations":[],"preferred":false,"id":489864,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Curtis, M.L.","contributorId":55335,"corporation":false,"usgs":true,"family":"Curtis","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":489865,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Riley, T.R.","contributorId":107609,"corporation":false,"usgs":true,"family":"Riley","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":489866,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ferraccioli, Fausto","contributorId":43591,"corporation":false,"usgs":true,"family":"Ferraccioli","given":"Fausto","email":"","affiliations":[],"preferred":false,"id":489863,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70103194,"text":"ofr20071047SRP105 - 2007 - Denudation and uplift of the Mawson Escarpment (eastern Lambert Graben, Antarctica) as indicated by apatite fission track data and geomorphological observation","interactions":[],"lastModifiedDate":"2014-04-29T15:30:07","indexId":"ofr20071047SRP105","displayToPublicDate":"2007-01-01T15:08:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-105","title":"Denudation and uplift of the Mawson Escarpment (eastern Lambert Graben, Antarctica) as indicated by apatite fission track data and geomorphological observation","docAbstract":"Analysis of three vertical profiles from the southern Mawson Escarpment (Lambert Graben) reveals apatite fission track (AFT) ages ranging from 102±20 to 287±23 Ma and mean lengths of 12.2 to 13.0 μm. Quantitative thermal histories derived from these data consistently indicate onset of slow cooling below 110°C began sometime prior to 300 Ma, and a second stage of rapid cooling from paleotemperatures up to ≤100°C to surface temperatures occurred in the Late Cretaceous – Paleocene. The first cooling phase refers to Carboniferous – Jurassic basement denudation up to 5 km associated with the initial rifting of the Lambert Graben. The presence of the ancient East Antarctic Erosion Surface and rapid Late Cretaceous – Paleocene cooling indicate a second denudational episode during which up to 4.5 km of sedimentary cover rocks were removed, and that is likely linked to the Cretaceous Gondwana breakup between Antarctica and India and subsequent passive continental margin formation.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP105","usgsCitation":"Lisker, F., Gibson, H., Wilson, C.J., and Laufer, A., 2007, Denudation and uplift of the Mawson Escarpment (eastern Lambert Graben, Antarctica) as indicated by apatite fission track data and geomorphological observation: U.S. Geological Survey Open-File Report 2007-1047-SRP-105, 6 p., https://doi.org/10.3133/ofr20071047SRP105.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286787,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP105.JPG"},{"id":286786,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp105/of2007-1047srp105.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5360c9e9e4b082a3ecf53df5","contributors":{"authors":[{"text":"Lisker, F.","contributorId":57363,"corporation":false,"usgs":true,"family":"Lisker","given":"F.","email":"","affiliations":[],"preferred":false,"id":493210,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gibson, H.","contributorId":99045,"corporation":false,"usgs":true,"family":"Gibson","given":"H.","email":"","affiliations":[],"preferred":false,"id":493212,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilson, C. J.","contributorId":88242,"corporation":false,"usgs":true,"family":"Wilson","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":493211,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Laufer, A.","contributorId":37257,"corporation":false,"usgs":true,"family":"Laufer","given":"A.","email":"","affiliations":[],"preferred":false,"id":493209,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70103193,"text":"ofr20071047SRP104 - 2007 - Multiple shallow level sill intrusions coupled with hydromagmatic explosive eruptions marked the initial phase of Ferrar large igneous province magmatism in northern Victoria Land, Antarctica","interactions":[],"lastModifiedDate":"2014-04-29T15:07:22","indexId":"ofr20071047SRP104","displayToPublicDate":"2007-01-01T14:50:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-104","title":"Multiple shallow level sill intrusions coupled with hydromagmatic explosive eruptions marked the initial phase of Ferrar large igneous province magmatism in northern Victoria Land, Antarctica","docAbstract":"Field data gathered during GANOVEX IX (2005/2006) in Northern Victoria Land, Antarctica, indicate that \nvolcaniclastic deposits of phreatomagmatic eruptions (so-called Exposure Hill Type events) are intercalated with fluvial \ndeposits of Triassic-Jurassic age at two stratigraphic levels. Abundant scoriaceous spatter (locally welded) indicates a \nhawaiian/strombolian component. Breccia-filled diatremes, from which volcaniclastic deposits were sourced, are rooted \nin sills which intruded wet sediments. The deposits are thus subaerial expressions of initial Ferrar magmatism involving \nintrusion of multiple shallow-level sills. Due to magma-sediment interaction abundant clastic dikes are developed that \nintrude the sediments and sills. All igneous components in the volcaniclastic deposits are andesitic in composition, as \nare the chilled margins of the sills. They are more differentiated than the basaltic andesites of the younger effusive \nsection of Kirkpatrick plateau lavas which in northern Victoria Land start with pillow lavas and small volume lava \nflows from volcanic necks.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP104","usgsCitation":"Viereck-Goette, L., Schoner, R., Bomfleur, B., and Schneider, J., 2007, Multiple shallow level sill intrusions coupled with hydromagmatic explosive eruptions marked the initial phase of Ferrar large igneous province magmatism in northern Victoria Land, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-104, 5 p., https://doi.org/10.3133/ofr20071047SRP104.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286785,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP104.JPG"},{"id":286784,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp104/of2007-1047srp104.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5360c9f0e4b082a3ecf53e1e","contributors":{"authors":[{"text":"Viereck-Goette, L.","contributorId":37641,"corporation":false,"usgs":true,"family":"Viereck-Goette","given":"L.","email":"","affiliations":[],"preferred":false,"id":493205,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schoner, R.","contributorId":97004,"corporation":false,"usgs":true,"family":"Schoner","given":"R.","email":"","affiliations":[],"preferred":false,"id":493208,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bomfleur, B.","contributorId":54116,"corporation":false,"usgs":true,"family":"Bomfleur","given":"B.","email":"","affiliations":[],"preferred":false,"id":493206,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schneider, J.","contributorId":85546,"corporation":false,"usgs":true,"family":"Schneider","given":"J.","email":"","affiliations":[],"preferred":false,"id":493207,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70074768,"text":"ofr20071047SRP031 - 2007 - Unconsolidated sediments at the bottom of Lake Vostok from seismic data","interactions":[],"lastModifiedDate":"2014-02-03T15:01:40","indexId":"ofr20071047SRP031","displayToPublicDate":"2007-01-01T14:41:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-031","title":"Unconsolidated sediments at the bottom of Lake Vostok from seismic data","docAbstract":"Seismic soundings of Lake Vostok have been performed by the Polar Marine Geological Research \nExpedition in collaboration with the Russian Antarctic Expedition since the early 1990s. The seismograms recorded \nshow at least two relatively closely spaced reflections associated with the lake bottom. These were initially interpreted \nas boundaries of a layer of unconsolidated sediments at the bottom of the lake. A more recent interpretation suggests \nthat the observed reflections are side echoes from the rough lake bottom, and that there are no unconsolidated sediments \nat the bottom of the lake. The major goal of this paper is to reveal the nature of those reflections by testing three \nhypotheses of their origin. The results show that some of the reflections, but not all of them, are consistent with the \nhypothesis of a non-flat lake bottom along the source-receiver line (2D case). The reflections were also evaluated as \nside echoes from an adjacent sloping interface, but these tests implied unreasonably steep slopes (at least 8 degrees) at \nthe lake bottom. The hypothesis that is the most compatible with seismic data is the presence of a widespread layer of \nunconsolidated sediments at the bottom of Lake Vostok. The modeling suggests the presence of a two hundred meter \nthick sedimentary layer with a seismic velocity of 1700 -1900 m/sec in the southern and middle parts of the lake. The \nsedimentary layer thickens in the northern basin to ~350 m","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP031","usgsCitation":"Filina, I., Lukin, V., Masolov, V., and Blankenship, D., 2007, Unconsolidated sediments at the bottom of Lake Vostok from seismic data: U.S. Geological Survey Open-File Report 2007-1047-SRP-031, 5 p., https://doi.org/10.3133/ofr20071047SRP031.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281921,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP031.JPG"},{"id":281918,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp031/of2007-1047srp031.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7a29e4b0b2908510d4dd","contributors":{"authors":[{"text":"Filina, I.","contributorId":80585,"corporation":false,"usgs":true,"family":"Filina","given":"I.","email":"","affiliations":[],"preferred":false,"id":489851,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lukin, V.","contributorId":47696,"corporation":false,"usgs":true,"family":"Lukin","given":"V.","email":"","affiliations":[],"preferred":false,"id":489850,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Masolov, Valery","contributorId":102788,"corporation":false,"usgs":true,"family":"Masolov","given":"Valery","email":"","affiliations":[],"preferred":false,"id":489852,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Blankenship, D.","contributorId":108260,"corporation":false,"usgs":true,"family":"Blankenship","given":"D.","affiliations":[],"preferred":false,"id":489853,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70103040,"text":"ofr20071047SRP096 - 2007 - Morphotectonic architecture of the Transantarctic Mountains rift flank between the Royal Society Range and the Churchill Mountains based on geomorphic analysis","interactions":[],"lastModifiedDate":"2014-04-29T10:13:34","indexId":"ofr20071047SRP096","displayToPublicDate":"2007-01-01T14:34:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-096","title":"Morphotectonic architecture of the Transantarctic Mountains rift flank between the Royal Society Range and the Churchill Mountains based on geomorphic analysis","docAbstract":"Extensional forces within the Antarctic Plate have produced the Transantarctic Mountains rift-flank uplift \nalong the West Antarctic rift margin. Large-scale linear morphologic features within the mountains are controlled by \nbedrock structure and can be recognized and mapped from satellite imagery and digital elevation models (DEMs). This \nstudy employed the Antarctic Digital Database DEM to obtain slope steepness and aspect maps of the Transantarctic \nMountains (TAM) between the Royal Society Range and the Churchill Mountains, allowing definition of the position \nand orientation of the morphological axis of the rift-flank. The TAM axis, interpreted as a fault-controlled escarpment \nformed by coast-parallel retreat, provides a marker for the orientation of the faulted boundary between the TAM and the \nrift system. Changes in position and orientation of the TAM axis suggests the rift flank is segmented into tectonic \nblocks bounded by relay ramps and transverse accommodation zones. The transverse boundaries coincide with major \noutlet glaciers, supporting interpretation of rift structures between them. The pronounced morphological change across \nByrd Glacier points to control by structures inherited from the Ross orogen.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP096","usgsCitation":"Demyanick, E., and Wilson, T.J., 2007, Morphotectonic architecture of the Transantarctic Mountains rift flank between the Royal Society Range and the Churchill Mountains based on geomorphic analysis: U.S. Geological Survey Open-File Report 2007-1047-SRP-096, 6 p., https://doi.org/10.3133/ofr20071047SRP096.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286759,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP096.JPG"},{"id":286758,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp096/of2007-1047srp096.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5360c9f0e4b082a3ecf53e1a","contributors":{"authors":[{"text":"Demyanick, Elizabeth","contributorId":34051,"corporation":false,"usgs":true,"family":"Demyanick","given":"Elizabeth","email":"","affiliations":[],"preferred":false,"id":493119,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, Terry J.","contributorId":83843,"corporation":false,"usgs":true,"family":"Wilson","given":"Terry","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":493120,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70068932,"text":"ofr20071047SRP014 - 2007 - Insight into the geology of the East Antarctic hinterland: a study of sediment inclusions from ice cores of the Lake Vostok borehole","interactions":[],"lastModifiedDate":"2014-01-13T14:40:06","indexId":"ofr20071047SRP014","displayToPublicDate":"2007-01-01T14:33:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-014","title":"Insight into the geology of the East Antarctic hinterland: a study of sediment inclusions from ice cores of the Lake Vostok borehole","docAbstract":"The borehole at the southern part of subglacial Lake Vostok has been drilled into an ice layer that has been\nrefrozen from the lake water. This ice layer contains random sediment inclusions, eight of which have been studied \nusing state-of the-art analytical techniques. Six inclusions comprise soft aggregates consisting mainly of clay-mica \nminerals and micron-sized quartz grains while two others are solid clasts of fine-grained cemented rocks. The largest \nrock clast consists of poorly-rounded quartz and minor amounts of accessory minerals and is classified as quartzose \nsiltstone. More than twenty grains of zircon and monazite have been identified in this siltstone and dated by SIMS \nSHRIMP-II. Two age clusters have been recognized for these detrital grains, in the ranges 0.8−1.2 Ga and 1.6−1.8 Ga. \nThe compositions of the rock clasts suggest that the bedrock situated to the west of Lake Vostok is sedimentary. The \nage data on the detrital accessory minerals suggest that the provenance of these sedimentary rocks − the Gamburtsev \nMountains and Vostok Subglacial Highlands, is mainly represented by Paleoproterozoic and MesoproterozoicNeoproterozoic crustal provinces","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP014","usgsCitation":"Leitchenkov, G., Belyatsky, B., Rodionov, N., and Sergeev, S., 2007, Insight into the geology of the East Antarctic hinterland: a study of sediment inclusions from ice cores of the Lake Vostok borehole: U.S. Geological Survey Open-File Report 2007-1047-SRP-014, 4 p., https://doi.org/10.3133/ofr20071047SRP014.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280912,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP014.JPG"},{"id":280911,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp014/of2007-1047srp014.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd62a5e4b0b290850fe510","contributors":{"authors":[{"text":"Leitchenkov, G.L.","contributorId":70126,"corporation":false,"usgs":true,"family":"Leitchenkov","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":488190,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Belyatsky, B.V.","contributorId":30907,"corporation":false,"usgs":true,"family":"Belyatsky","given":"B.V.","email":"","affiliations":[],"preferred":false,"id":488188,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rodionov, N.V.","contributorId":38893,"corporation":false,"usgs":true,"family":"Rodionov","given":"N.V.","email":"","affiliations":[],"preferred":false,"id":488189,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sergeev, S.A.","contributorId":76584,"corporation":false,"usgs":true,"family":"Sergeev","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":488191,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70120699,"text":"70120699 - 2007 - Management applications of lidar-derived mean high water shorelines in North Carolina","interactions":[],"lastModifiedDate":"2017-09-06T15:07:01","indexId":"70120699","displayToPublicDate":"2007-01-01T14:32:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Management applications of lidar-derived mean high water shorelines in North Carolina","docAbstract":"<p>The accuracy of shoreline change analysis is dependent on how the shoreline is defined and the consistency of the techniques(s) used to define it. Using the concurrent lidar (light detection and ranging) and orthophotography dataset from August and September of 2004 covering North Carolina's 516 kilometers of barrier island oceanfront, Limber et al. (2007) examined the spatial relationship between two common shoreline definitions used in shoreline change analysis, mean high water [MHW] derived from lidar data and the wet/dry line digitized from orthophotography. Here, we summarize this work and extend the analysis with a comparison between two different methods of MHW shoreline extraction from liar data: a profile-based method (Stockdon  et al., 2002) and a method based on correction of the lidar data to a MHW datum (Hess et al., 2005). Potential bias generated by using these different shoreline types together can affect not only the accuracy of shoreline change analysis, but also the coastal management policies and decision that rely on it. Therefore, the implications of this study potential extend far beyond North Carolina and Atlantic Coast of the United States.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of Coastal Zone '07","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"NOAA Coastal Services Center","publisherLocation":"Charleston, SC","usgsCitation":"Limber, P., List, J., and Warren, J.D., 2007, Management applications of lidar-derived mean high water shorelines in North Carolina, <i>in</i> Proceedings of Coastal Zone '07, 5 p.","productDescription":"5 p.","numberOfPages":"5","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":292324,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -84.3219,33.841 ], [ -84.3219,36.5882 ], [ -75.46,36.5882 ], [ -75.46,33.841 ], [ -84.3219,33.841 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ef1ed5e4b0bfa1f993efc5","contributors":{"authors":[{"text":"Limber, Patrick W.","contributorId":38904,"corporation":false,"usgs":true,"family":"Limber","given":"Patrick W.","affiliations":[],"preferred":false,"id":498407,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"List, Jeffrey H. jlist@usgs.gov","contributorId":2416,"corporation":false,"usgs":true,"family":"List","given":"Jeffrey H.","email":"jlist@usgs.gov","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":false,"id":498405,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Warren, Jeffrey D.","contributorId":21869,"corporation":false,"usgs":true,"family":"Warren","given":"Jeffrey","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":498406,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70074763,"text":"ofr20071047SRP030 - 2007 - Geology of the Byrd Glacier Discontinuity (Ross Orogen): New survey data from the Britannia Range, Antarctica","interactions":[],"lastModifiedDate":"2014-02-03T14:27:57","indexId":"ofr20071047SRP030","displayToPublicDate":"2007-01-01T14:14:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-030","title":"Geology of the Byrd Glacier Discontinuity (Ross Orogen): New survey data from the Britannia Range, Antarctica","docAbstract":"Field activities in the Britannia Range (Transantarctic Mountains, Antarctica) highlighted new geological \nfeatures around the so-called Byrd Glacier discontinuity. Recent field surveys revealed the occurrence of significant \namounts of medium- to high-grade metamorphic rocks, intruded by abundant coarse-grained porphyritic granitoids. \nMost of the granitoids are deformed, with foliation parallel to the regional foliation in the metamorphics. Two main \nepisodes of deformation are observed. Tight to isoclinal folds and penetrative axial plane foliation are related to the D1 \nphase, open folds to the D2. The main foliation (D1) trends nearly E-W in agreement with the trend in the southern \nportion of the Byrd Glacier. In most outcrops, granitic dykes are folded and stretched by the D2 deformation, which \nshows similar characteristics with the D2 deformation south of the Byrd Glacier. This suggests the occurrence in the \nRoss orogen of an orogen-normal structure south and north of the Byrd Glacier.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP030","usgsCitation":"Carosi, R., Giacomini, F., Talarico, F., and Stump, E., 2007, Geology of the Byrd Glacier Discontinuity (Ross Orogen): New survey data from the Britannia Range, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-030, 6 p., https://doi.org/10.3133/ofr20071047SRP030.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281911,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp030/of2007-1047srp030.pdf"},{"id":281913,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP030.JPG"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5e31e4b0b290850fb87a","contributors":{"authors":[{"text":"Carosi, R.","contributorId":24681,"corporation":false,"usgs":true,"family":"Carosi","given":"R.","email":"","affiliations":[],"preferred":false,"id":489842,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Giacomini, F.","contributorId":22241,"corporation":false,"usgs":true,"family":"Giacomini","given":"F.","email":"","affiliations":[],"preferred":false,"id":489841,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Talarico, F.","contributorId":84585,"corporation":false,"usgs":true,"family":"Talarico","given":"F.","email":"","affiliations":[],"preferred":false,"id":489844,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stump, E.","contributorId":63303,"corporation":false,"usgs":true,"family":"Stump","given":"E.","email":"","affiliations":[],"preferred":false,"id":489843,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70120690,"text":"70120690 - 2007 - Observations related to tetrahydrofuran and methane hydrates for laboratory studies of hydrate-bearing sediments","interactions":[],"lastModifiedDate":"2014-08-15T14:11:15","indexId":"70120690","displayToPublicDate":"2007-01-01T14:09:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1757,"text":"Geochemistry, Geophysics, Geosystems","active":true,"publicationSubtype":{"id":10}},"title":"Observations related to tetrahydrofuran and methane hydrates for laboratory studies of hydrate-bearing sediments","docAbstract":"<p>The interaction among water molecules, guest gas molecules, salts, and mineral particles determines the nucleation and growth behavior of gas hydrates in natural sediments. Hydrate of tetrahydrofuran (THF) has long been used for laboratory studies of gas hydrate-bearing sediments to provide close control on hydrate concentrations and to overcome the long formation history of methane hydrate from aqueous phase methane in sediments. Yet differences in the polarizability of THF (polar molecule) compared to methane (nonpolar molecule) raise questions about the suitability of THF as a proxy for methane in the study of hydrate-bearing sediments. From existing data and simple macroscale experiments, we show that despite its polar nature, THF's large molecular size results in low permittivity, prevents it from dissolving precipitated salts, and hinders the solvation of ions on dry mineral surfaces. In addition, the interfacial tension between water and THF hydrate is similar to that between water and methane hydrate. The processes that researchers choose for forming hydrate in sediments in laboratory settings (e.g., from gas, liquid, or ice) and the pore-scale distribution of the hydrate that is produced by each of these processes likely have a more pronounced effect on the measured macroscale properties of hydrate-bearing sediments than do differences between THF and methane hydrates themselves.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geochemistry, Geophysics, Geosystems","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1029/2006GC001531","usgsCitation":"Lee, J., Yun, T., Santamarina, J., and Ruppel, C., 2007, Observations related to tetrahydrofuran and methane hydrates for laboratory studies of hydrate-bearing sediments: Geochemistry, Geophysics, Geosystems, v. 8, no. 6, 10 p., https://doi.org/10.1029/2006GC001531.","productDescription":"10 p.","numberOfPages":"10","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292314,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":292313,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006GC001531"}],"volume":"8","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-06-06","publicationStatus":"PW","scienceBaseUri":"53ef1ed5e4b0bfa1f993efda","contributors":{"authors":[{"text":"Lee, J.Y.","contributorId":20061,"corporation":false,"usgs":true,"family":"Lee","given":"J.Y.","email":"","affiliations":[],"preferred":false,"id":498389,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yun, T.S.","contributorId":26141,"corporation":false,"usgs":true,"family":"Yun","given":"T.S.","email":"","affiliations":[],"preferred":false,"id":498390,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Santamarina, J.C.","contributorId":50283,"corporation":false,"usgs":true,"family":"Santamarina","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":498391,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ruppel, C.","contributorId":82050,"corporation":false,"usgs":true,"family":"Ruppel","given":"C.","email":"","affiliations":[],"preferred":false,"id":498392,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70094193,"text":"ofr20071047SRP055 - 2007 - Break-up of Gondwana and opening of the South Atlantic: Review of existing plate tectonic models","interactions":[],"lastModifiedDate":"2014-02-18T14:14:41","indexId":"ofr20071047SRP055","displayToPublicDate":"2007-01-01T14:05:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-055","title":"Break-up of Gondwana and opening of the South Atlantic: Review of existing plate tectonic models","docAbstract":"The opening history of both the Weddell Sea and South Atlantic Ocean is critical to understanding the break-\nup of Gondwana and the evolution of Antarctica since Early Jurassic times. The dispersal of the Gondwanide fragments\nis important to understanding the development of past ocean circulation. Unfortunately the tectonics of the Weddell Sea\nregion is difficult to resolve because of the paucity of data coverage and the region’s inherent complexity. Although\nconsiderable progress has been achieved in the past 20 years with new marine aeromagnetic data and satellite derived\ngravity anomaly maps, there are still several models in consideration which differ in crustal ages and schemes of opening. In this paper we present a review of four of those models. Focusing on poles of rotation, synthetic isochrons and\nflowlines, we proceed backward in time beginning at Chron 34 (83.5 Ma), as it is relatively well defined ocean wide,\nand present crustal age maps that display the estimated trace of the South America-Antarctica-Africa triple junction for\neach model. We also plot reconstructions at four selected epochs for all models using the same projection and scale to facilitate comparison. The diverse simplifying assumptions that need to be made in every case regarding plate fragmentation to account for the numerous syn-rift basins and periods of stretching are strong indicators that rigid plate tectonics is too simple a model for the present problem.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP055","usgsCitation":"Ghidella, M., Lawver, L., and Gahagan, L., 2007, Break-up of Gondwana and opening of the South Atlantic: Review of existing plate tectonic models: U.S. Geological Survey Open-File Report 2007-1047-SRP-055, 5 p., https://doi.org/10.3133/ofr20071047SRP055.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282490,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp055/of2007-1047srp055.pdf"},{"id":282492,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP055.JPG"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4fcae4b0b290850f2ee5","contributors":{"authors":[{"text":"Ghidella, M.E.","contributorId":37645,"corporation":false,"usgs":true,"family":"Ghidella","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":490547,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lawver, L.A.","contributorId":73599,"corporation":false,"usgs":true,"family":"Lawver","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":490548,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gahagan, L.M.","contributorId":15112,"corporation":false,"usgs":true,"family":"Gahagan","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":490546,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70093615,"text":"ofr20071047SRP038 - 2007 - Solubility of TiO<sub>2</sub> in garnet and orthopyroxene: Ti thermometer for ultrahigh-temperature granulites","interactions":[],"lastModifiedDate":"2014-02-10T15:00:23","indexId":"ofr20071047SRP038","displayToPublicDate":"2007-01-01T14:03:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-038","title":"Solubility of TiO<sub>2</sub> in garnet and orthopyroxene: Ti thermometer for ultrahigh-temperature granulites","docAbstract":"We report the TiO<sub>2</sub> solubility in garnet and orthopyroxene coexisting with rutile calibrated from experimental data at pressures 7–20 kbar and temperatures 850–1300°C in two Antarctic granulite systems.The Ti would substitute for the tetrahedral Si, whereas we could not find positive evidence of the coupled substitution of M-Ti (M is Mg or Fe) for Al-Al in octahedral sites as well as the interstitial substitution of \u0003-Ti (\u0003 is avacancy)\nfor M-M in triangular-dodecahedral sites of garnet at ultrahigh-temperature (UHT) metamorphicconditions.The TiO<sub>2</sub> content of garnet increases with temperature and decreases with pressure. In orthopyroxene Ti substitutes for atoms in the tetrahedral and octahedralsites.The Ti content of orthopyroxene increases with temperature and\nincreases with pressure.Titanium solubility in garnet and orthopyroxene is not so sensitive to pressure change as\ncompared with temperature dependence given by following empirical equations: ln (X <sup>Grt;IV</sup><sub>Ti</sub>/X<sup>Grt;IV</sup><sub>Si</sub>)= -15366/T +5.962 and ln ( X<sup>Opx;IV</sup>\n<sub>Ti</sub>/X<sup>Opx;IV</sup><sub>Si</sub>)=-11367=T +3.107 where X is the mole fraction of Ti or Si on the tetrahedral sites and temperature is given in Kelvin.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP038","usgsCitation":"Kawasaki, T., and Motoyoshi, Y., 2007, Solubility of TiO<sub>2</sub> in garnet and orthopyroxene: Ti thermometer for ultrahigh-temperature granulites: U.S. Geological Survey Open-File Report 2007-1047-SRP-038, 4 p., https://doi.org/10.3133/ofr20071047SRP038.","productDescription":"4 p.","costCenters":[],"links":[{"id":282231,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP038.JPG"},{"id":282230,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp038/of2007-1047srp038.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7336e4b0b29085108cce","contributors":{"authors":[{"text":"Kawasaki, Toshisuke","contributorId":53289,"corporation":false,"usgs":true,"family":"Kawasaki","given":"Toshisuke","email":"","affiliations":[],"preferred":false,"id":490086,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Motoyoshi, Yoichi","contributorId":83440,"corporation":false,"usgs":true,"family":"Motoyoshi","given":"Yoichi","email":"","affiliations":[],"preferred":false,"id":490087,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70074759,"text":"ofr20071047SRP029 - 2007 - Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature","interactions":[],"lastModifiedDate":"2014-02-03T14:09:17","indexId":"ofr20071047SRP029","displayToPublicDate":"2007-01-01T14:01:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-029","title":"Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature","docAbstract":"Principal Components Analysis (PCA) in S-Mode (correlation between temporal series) was performed on \nsea ice monthly anomalies, in order to investigate which are the main temporal patterns, where are the homogenous \nareas located and how are they related to the sea surface temperature (SST). This analysis provides 9 patterns (4 in the \nAmundsen and Bellingshausen Seas and 5 in the Weddell Sea) that represent the most important temporal features that \ndominated sea ice concentration anomalies (SICA) variability in the Weddell, Amundsen and Bellingshausen Seas over \nthe 1979-2000 period. Monthly Polar Gridded Sea Ice Concentrations data set derived from satellite information \ngenerated by NASA Team algorithm and acquired from the National Snow and Ice Data Center (NSIDC) were used. \nMonthly means SST are provided by the National Center for Environmental Prediction reanalysis. The first temporal \npattern series obtained by PCA has its homogeneous area located at the external region of the Weddell and \nBellingshausen Seas and Drake Passage, mostly north of 60°S. The second region is centered in 30°W and located at the \nsoutheast of the Weddell. The third area is localized east of 30°W and north of 60°S. South of the first area, the fourth \nPC series has its homogenous region, between 30° and 60°W. The last area is centered at 0° W and south of 60°S. \nCorrelation charts between the five Principal Components series and SST were performed. Positive correlations over the \nTropical Pacific Ocean were found for the five PCs when SST series preceded SICA PC series. The sign of the \ncorrelation could relate the occurrence of an El Niño/Southern Oscillation (ENSO) warm (cold) event with posterior \npositive (negative) anomalies of sea ice concentration over the Weddell Sea.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP029","usgsCitation":"Barreira, S., and Compagnucci, R., 2007, Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature: U.S. Geological Survey Open-File Report 2007-1047-SRP-029, 5 p., https://doi.org/10.3133/ofr20071047SRP029.","productDescription":"5 p.","onlineOnly":"N","costCenters":[],"links":[{"id":281910,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP029.JPG"},{"id":281909,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp029/of2007-1047srp029.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7196e4b0b29085107c3f","contributors":{"authors":[{"text":"Barreira, S.","contributorId":28167,"corporation":false,"usgs":true,"family":"Barreira","given":"S.","email":"","affiliations":[],"preferred":false,"id":489837,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Compagnucci, R.","contributorId":21068,"corporation":false,"usgs":true,"family":"Compagnucci","given":"R.","email":"","affiliations":[],"preferred":false,"id":489836,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70068872,"text":"ofr20071047SRP011 - 2007 - SCIAMACHY’s View of the Polar Atmosphere","interactions":[],"lastModifiedDate":"2014-01-13T13:58:25","indexId":"ofr20071047SRP011","displayToPublicDate":"2007-01-01T13:48:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-011","title":"SCIAMACHY’s View of the Polar Atmosphere","docAbstract":"The instrument SCIAMACHY onboard the European ENVISAT mission provides unique capabilities for \nderiving atmospheric geophysical parameters. Since its launch in early 2002 it has operated successfully in orbit. Due to \nENVISAT’s high inclination orbit the polar regions are monitored continuously. We report here results about the status \nof the polar atmosphere in the past 5 years with special emphasis on the southern hemisphere. This part of the \natmosphere is considered to be highly sensitive to anthropogenic impacts on the Earth system and thus to climate \nchange. The acquired data permit retrieving information on the Earth’s atmosphere from troposphere up to the \nmesosphere","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP011","usgsCitation":"Gottwald, M., Krieg, E., von Savigny, C., Noel, S., Reichl, A., Bovensmann, H., and Burrows, J., 2007, SCIAMACHY’s View of the Polar Atmosphere: U.S. Geological Survey Open-File Report 2007-1047-SRP-011, 4 p., https://doi.org/10.3133/ofr20071047SRP011.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280901,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP011.JPG"},{"id":280900,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp011/of2007-1047srp011.pdf"}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd713ae4b0b290851078a1","contributors":{"authors":[{"text":"Gottwald, M.","contributorId":90637,"corporation":false,"usgs":true,"family":"Gottwald","given":"M.","email":"","affiliations":[],"preferred":false,"id":488164,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Krieg, E.","contributorId":15929,"corporation":false,"usgs":true,"family":"Krieg","given":"E.","email":"","affiliations":[],"preferred":false,"id":488159,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"von Savigny, C.","contributorId":62137,"corporation":false,"usgs":true,"family":"von Savigny","given":"C.","email":"","affiliations":[],"preferred":false,"id":488161,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Noel, S.","contributorId":80582,"corporation":false,"usgs":true,"family":"Noel","given":"S.","email":"","affiliations":[],"preferred":false,"id":488162,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Reichl, A.","contributorId":30139,"corporation":false,"usgs":true,"family":"Reichl","given":"A.","email":"","affiliations":[],"preferred":false,"id":488160,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bovensmann, H.","contributorId":91015,"corporation":false,"usgs":true,"family":"Bovensmann","given":"H.","email":"","affiliations":[],"preferred":false,"id":488165,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Burrows, J.P.","contributorId":85879,"corporation":false,"usgs":true,"family":"Burrows","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":488163,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70074756,"text":"ofr20071047SRP028 - 2007 - Crustal structure and evolution of the Mawson Sea, western Wilkes Land margin, East Antarctica","interactions":[],"lastModifiedDate":"2014-02-03T13:54:13","indexId":"ofr20071047SRP028","displayToPublicDate":"2007-01-01T13:46:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-028","title":"Crustal structure and evolution of the Mawson Sea, western Wilkes Land margin, East Antarctica","docAbstract":"Thisstudy is based on about 4000 km of MCS, magnetic and gravity data as well as 10 sonobuoys collected\nby the 2005 Russian Antarctic Expedition in the Mawson Sea and adjacent Australian-Antarctic basin between 102°E \nand 115°E. Major identified tectonic provinces and features of the study region include: 1) A marginal rift about 300 km \nwide which developed as a result of extreme crustal extension and unroofing of the upper mantle, and 2) An oceanic \nbasin with the crust of not older than 81 Ma, which is characterized by ultraslow sea-floorspreading ratesranging from\n3 to 11 mm/yr. Three major unconformities are identified in the sedimentary cover of the Mawson Sea and are \ninterpreted to be caused by break-up between Australia and Antarctica at about 81 Ma ago (WL1), the first arrival of the \nice sheet to the Mawson Sea (WL3) and continental scale glaciation at about 34 Ma ago (WL4).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP028","usgsCitation":"Leitchenkov, G., Gandyukhin, V., Guseva, Y.B., and Kazankov, A.Y., 2007, Crustal structure and evolution of the Mawson Sea, western Wilkes Land margin, East Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-028, 4 p., https://doi.org/10.3133/ofr20071047SRP028.","productDescription":"4 p.","numberOfPages":"4","costCenters":[],"links":[{"id":281904,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP028.JPG"},{"id":281903,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp028/of2007-1047srp028.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5384e4b0b290850f5337","contributors":{"authors":[{"text":"Leitchenkov, G.L.","contributorId":70126,"corporation":false,"usgs":true,"family":"Leitchenkov","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":489825,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gandyukhin, V.V.","contributorId":35081,"corporation":false,"usgs":true,"family":"Gandyukhin","given":"V.V.","email":"","affiliations":[],"preferred":false,"id":489822,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Guseva, Yu. B.","contributorId":67803,"corporation":false,"usgs":true,"family":"Guseva","given":"Yu.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":489824,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kazankov, A. Yu","contributorId":38061,"corporation":false,"usgs":true,"family":"Kazankov","given":"A.","email":"","middleInitial":"Yu","affiliations":[],"preferred":false,"id":489823,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70093609,"text":"ofr20071047SRP037 - 2007 - East Antarctic Ice Sheet fluctuations during the Middle Miocene Climatic  Transition inferred from faunal and biogeochemical data on planktonic  foraminifera (ODP Hole 747A, Kerguelen Plateau)","interactions":[],"lastModifiedDate":"2014-02-10T13:54:59","indexId":"ofr20071047SRP037","displayToPublicDate":"2007-01-01T13:39:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-037","title":"East Antarctic Ice Sheet fluctuations during the Middle Miocene Climatic  Transition inferred from faunal and biogeochemical data on planktonic  foraminifera (ODP Hole 747A, Kerguelen Plateau)","docAbstract":"This research focuses on a detailed study of faunal and biogeochemical changes that occurred at ODP Hole \n747A in the Kerguelen Plateau region of the Southern Ocean during the middle Miocene (14.8-11.8 Ma). Abundance \nfluctuations of several planktonic foraminiferal taxa, stable oxygen isotope and Mg/Ca ratios have been integrated as a \nmulti-proxy approach to reach a better understanding of the growth modality and fluctuations of the East Antarctic Ice \nSheet (EAIS) during this period. A 7°C decrease in Sea Surface Temperature (SST), an abrupt turnover in the planktonic \nforaminiferal assemblage, a 1.5‰ shift towards heavier δ<sup>18</sup>O values (Mi3 event) and a related shift towards heavier \nseawater δ1<sup>18</sup>O values between 13.9 and 13.7 Ma, are interpreted to reflect rapid surface water cooling and EAIS \nexpansion. Hole 747A data suggest a major change in the variability of the climate system fostered by EAIS expansion \nbetween 13.9 and 13.7 Ma. Ice sheet fluctuations were greater during the interval 14.8-13.9 Ma compared with those \nfrom 13.7 to 11.8 Ma, whereas the latter interval was characterized by a more stable EAIS. In our opinion, the middle \nMiocene ice sheet expansion in Antarctica represents a first step towards the development of the modern permanent ice \nsheet","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP037","usgsCitation":"Verducci, M., Foresi, L., Scott, G., Tiepolo, Sprovieri, M., and Lirer, F., 2007, East Antarctic Ice Sheet fluctuations during the Middle Miocene Climatic  Transition inferred from faunal and biogeochemical data on planktonic  foraminifera (ODP Hole 747A, Kerguelen Plateau): U.S. Geological Survey Open-File Report 2007-1047-SRP-037, 5 p., https://doi.org/10.3133/ofr20071047SRP037.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282223,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP037.JPG"},{"id":282222,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp037/of2007-1047srp037.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd563ae4b0b290850f6cb2","contributors":{"authors":[{"text":"Verducci, M.","contributorId":62134,"corporation":false,"usgs":true,"family":"Verducci","given":"M.","email":"","affiliations":[],"preferred":false,"id":490077,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Foresi, L.M.","contributorId":107608,"corporation":false,"usgs":true,"family":"Foresi","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":490078,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scott, G.H.","contributorId":54509,"corporation":false,"usgs":true,"family":"Scott","given":"G.H.","email":"","affiliations":[],"preferred":false,"id":490076,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tiepolo","contributorId":128047,"corporation":true,"usgs":false,"organization":"Tiepolo","id":535627,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sprovieri, M.","contributorId":12775,"corporation":false,"usgs":true,"family":"Sprovieri","given":"M.","email":"","affiliations":[],"preferred":false,"id":490073,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lirer, F.","contributorId":54108,"corporation":false,"usgs":true,"family":"Lirer","given":"F.","email":"","affiliations":[],"preferred":false,"id":490075,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70103167,"text":"ofr20071047SRP101 - 2007 - Thermochronologic constraints on the tectonic evolution of the western Antarctic Peninsula in late Mesozoic and Cenozoic times","interactions":[],"lastModifiedDate":"2014-04-29T13:54:18","indexId":"ofr20071047SRP101","displayToPublicDate":"2007-01-01T13:38:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-101","title":"Thermochronologic constraints on the tectonic evolution of the western Antarctic Peninsula in late Mesozoic and Cenozoic times","docAbstract":"West of the Antarctic Peninsula, oceanic lithosphere of the Phoenix plate has been subducted below the \nAntarctic plate. Subduction has ceased successively from south to north over the last 65 Myr. An influence of this \nevolution on the segmentation of the crust in the Antarctic plate is disputed. Opposing scenarios consider effects of \nridge crest – trench interactions with the subduction zone or differences in slip along a basal detachment in the \noverriding plate. Fission track (FT) analyses on apatites and zircons may detect thermochronologic patterns to test these \nhypotheses. While existing data concentrate on accretionary processes in Palmer Land, new data extend information to \nthe northern part of the Antarctic Peninsula. Zircons from different geological units over wide areas of the Antarctic \nPeninsula yield fission track ages between 90 and 80 Ma, indicating a uniform regional cooling episode. Apatite FT \nages obtained so far show considerable regional variability","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP101","usgsCitation":"Brix, M., Faundez, V., Herve, F., Solari, M., Fernandez, J., Carter, A., and Stockhert, B., 2007, Thermochronologic constraints on the tectonic evolution of the western Antarctic Peninsula in late Mesozoic and Cenozoic times: U.S. Geological Survey Open-File Report 2007-1047-SRP-101, 5 p., https://doi.org/10.3133/ofr20071047SRP101.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286775,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP101.JPG"},{"id":286774,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp101/of2007-1047srp101.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5360c9fde4b082a3ecf53e3d","contributors":{"authors":[{"text":"Brix, M.R.","contributorId":100295,"corporation":false,"usgs":true,"family":"Brix","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":493190,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Faundez, V.","contributorId":44464,"corporation":false,"usgs":true,"family":"Faundez","given":"V.","email":"","affiliations":[],"preferred":false,"id":493186,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Herve, F.","contributorId":26975,"corporation":false,"usgs":true,"family":"Herve","given":"F.","email":"","affiliations":[],"preferred":false,"id":493185,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Solari, M.","contributorId":12374,"corporation":false,"usgs":true,"family":"Solari","given":"M.","email":"","affiliations":[],"preferred":false,"id":493184,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fernandez, J.","contributorId":46229,"corporation":false,"usgs":true,"family":"Fernandez","given":"J.","affiliations":[],"preferred":false,"id":493187,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Carter, A.","contributorId":62438,"corporation":false,"usgs":true,"family":"Carter","given":"A.","email":"","affiliations":[],"preferred":false,"id":493188,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Stockhert, B.","contributorId":69064,"corporation":false,"usgs":true,"family":"Stockhert","given":"B.","email":"","affiliations":[],"preferred":false,"id":493189,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70094187,"text":"ofr20071047SRP054 - 2007 - Modeling environmental bias and computing velocity field from data of Terra Nova Bay GPS network in Antarctica by means of a quasi-observation processing approach","interactions":[],"lastModifiedDate":"2014-02-18T13:58:14","indexId":"ofr20071047SRP054","displayToPublicDate":"2007-01-01T13:38:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-054","title":"Modeling environmental bias and computing velocity field from data of Terra Nova Bay GPS network in Antarctica by means of a quasi-observation processing approach","docAbstract":"A semi-permanent GPS network of about 30 vertices has been installed at Terra Nova Bay (TNB) near \nRoss Sea in Antarctica. A permanent GPS station TNB1 based on an Ashtech Z-XII dual frequency P-code GPS \nreceiver with ASH700936D_M Choke Ring Antenna has been mounted on a reinforced concrete pillar built on \nbedrock since October 1998 and has recorded continuously up to the present. The semi-permanent network has been \nroutinely surveyed every summer using high quality dual frequency GPS receivers with 24 hour sessions at 15 sec \nrate; data, metadata and solutions will be available to the scientific community at (http://www.geodant.unimore.it). \nWe present the results of a distributed session approach applied to processing GPS data of the TNB GPS network, and \nbased on Gamit/Globk 10.2-3 GPS analysis software. The results are in good agreement with other authors' \ncomputations and with many of the theoretical models.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP054","usgsCitation":"Casula, G., Dubbini, M., and Galeandro, A., 2007, Modeling environmental bias and computing velocity field from data of Terra Nova Bay GPS network in Antarctica by means of a quasi-observation processing approach: U.S. Geological Survey Open-File Report 2007-1047-SRP-054, 4 p., https://doi.org/10.3133/ofr20071047SRP054.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282489,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP054.JPG"},{"id":282488,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp054/of2007-1047srp054.pdf"}],"otherGeospatial":"Antarctica;Terra Nova Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 160.76,-75.01 ], [ 160.76,-69.98 ], [ 171.32,-69.98 ], [ 171.32,-75.01 ], [ 160.76,-75.01 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd67dde4b0b29085101ab6","contributors":{"authors":[{"text":"Casula, Giuseppe","contributorId":27357,"corporation":false,"usgs":true,"family":"Casula","given":"Giuseppe","email":"","affiliations":[],"preferred":false,"id":490543,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dubbini, Marco","contributorId":93819,"corporation":false,"usgs":true,"family":"Dubbini","given":"Marco","email":"","affiliations":[],"preferred":false,"id":490544,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Galeandro, Angelo","contributorId":96586,"corporation":false,"usgs":true,"family":"Galeandro","given":"Angelo","email":"","affiliations":[],"preferred":false,"id":490545,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70103490,"text":"ofr20071047SRP109 - 2007 - Crustal architecture of the oblique-slip conjugate margins of George V Land  and southeast Australia","interactions":[],"lastModifiedDate":"2014-05-05T13:56:27","indexId":"ofr20071047SRP109","displayToPublicDate":"2007-01-01T13:37:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-109","title":"Crustal architecture of the oblique-slip conjugate margins of George V Land  and southeast Australia","docAbstract":"A conceptual, lithospheric-scale cross-section of the conjugate, oblique-slip margins of George V Land, East \nAntarctica, and southeast Australia (Otway Basin) has been constructed based on the integration of seismic and sample \ndata. This cross-section is characterised by asymmetry in width and thickness, and depth-dependent crustal extension at \nbreakup in the latest Maastrichtian. The broad Antarctic margin (~360 km apparent rift width) developed on thick \ncrust (~42 km) of the Antarctic craton, whereas the narrow Otway margin (~220 km) developed on the thinner crust \n(~31 km) of the Ross–Delamerian Orogen. The shallow basement (velocities ~5.5 km.s-1) and the deep continental \ncrust (velocities >6.4 km.s-1) appear to be largely absent across the central rift, while the mid-crustal, probably granitic \nlayer (velocities ~6 km.s-1) is preserved. Comparison with published numerical models suggests that the shallow \nbasement and deep crust may have been removed by simple shear, whereas the mid-crust has been ductilely deformed.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP109","usgsCitation":"Stagg, H., and Reading, A., 2007, Crustal architecture of the oblique-slip conjugate margins of George V Land  and southeast Australia: U.S. Geological Survey Open-File Report 2007-1047-SRP-109, 6 p., https://doi.org/10.3133/ofr20071047SRP109.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286882,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp109/of2007-1047srp109.pdf"},{"id":286883,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP109.JPG"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5368b2ece4b059f7e828832b","contributors":{"authors":[{"text":"Stagg, H.M.J.","contributorId":7843,"corporation":false,"usgs":true,"family":"Stagg","given":"H.M.J.","email":"","affiliations":[],"preferred":false,"id":493372,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reading, A.M.","contributorId":55342,"corporation":false,"usgs":true,"family":"Reading","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":493373,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70093760,"text":"ofr20071047SRP044 - 2007 - Thermochronologic constraints on Jurassic rift flank denudation in the Thiel Mountains, Antarctica","interactions":[],"lastModifiedDate":"2014-02-17T16:06:45","indexId":"ofr20071047SRP044","displayToPublicDate":"2007-01-01T13:35:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-044","title":"Thermochronologic constraints on Jurassic rift flank denudation in the Thiel Mountains, Antarctica","docAbstract":"The Thiel Mountains are part of the Transantarctic Mountains (TAM) and occupy a strategic position close \nto the East-West Antarctic boundary. They occur in a region of relatively subdued topography distal from high \ntopography and high relief of most of the TAM adjacent to the West Antarctic rift system. Low-temperature \nthermochronology on samples collected from the Reed Ridge granite on the north flank of the Thiel Mountains \nconstrain the thermal and hence tectonic history. Apatite fission track data plus thermal models indicate cooling from \nca. 165-150 Ma. In conjunction with <sup>40</sup>Ar/<sup>39</sup>Ar K-feldspar data, the results indicate cooling was due to relatively slow \nerosional denudation, and not thermal relaxation following Jurassic tholeiitic magmatism. Denudation was most likely \nassociated with the formation of the Jurassic rift system across Antarctica that marked the initial breakup of Gondwana. \nThis is the oldest episode of denudation associated with formation of the present day TAM","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP044","usgsCitation":"Fitzgerald, P., and Baldwin, S., 2007, Thermochronologic constraints on Jurassic rift flank denudation in the Thiel Mountains, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-044, 4 p., https://doi.org/10.3133/ofr20071047SRP044.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282453,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP044.png"},{"id":282452,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp044/of2007-1047srp044.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd78e1e4b0b2908510c722","contributors":{"authors":[{"text":"Fitzgerald, P.G.","contributorId":18579,"corporation":false,"usgs":true,"family":"Fitzgerald","given":"P.G.","email":"","affiliations":[],"preferred":false,"id":490195,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baldwin, S.L.","contributorId":16752,"corporation":false,"usgs":true,"family":"Baldwin","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":490194,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70120680,"text":"70120680 - 2007 - Survey report of NOAA Ship McArthur II cruises AR-04-04, AR-05-05 and AR-06-03: habitat classification of side scan sonar imagery in support of deep-sea coral/sponge explorations at the Olympic Coast National Marine Sanctuary","interactions":[],"lastModifiedDate":"2014-08-15T13:47:10","indexId":"70120680","displayToPublicDate":"2007-01-01T13:32:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesNumber":"ONMS-07-01","title":"Survey report of NOAA Ship McArthur II cruises AR-04-04, AR-05-05 and AR-06-03: habitat classification of side scan sonar imagery in support of deep-sea coral/sponge explorations at the Olympic Coast National Marine Sanctuary","docAbstract":"<p>Habitat mapping and characterization has been defined as a high-priority management issue for the Olympic Coast National Marine Sanctuary (OCNMS), especially for poorly known deep-sea habitats that may be sensitive to anthropogenic disturbance. As a result, a team of scientists from OCNMS, National Centers for Coastal Ocean Science (NCCOS), and other partnering institutions initiated a series of surveys to assess the distribution of deep-sea coral/sponge assemblages within the sanctuary and to look for evidence of potential anthropogenic impacts in these critical habitats. Initial results indicated that remotely delineating areas of hard bottom substrate through acoustic sensing could be a useful tool to increase the efficiency and success of subsequent ROV-based surveys of the associated deep-sea fauna. Accordingly, side scan sonar surveys were conducted in May 2004, June 2005, and April 2006 aboard the NOAA Ship <i>McArthur II</i> to: (1) obtain additional imagery of the seafloor for broader habitat-mapping coverage of sanctuary waters, and (2) help delineate suitable deep-sea coral-sponge habitat, in areas of both high and low commercial-fishing activities, to serve as sites for surveying-in more detail using an ROV on subsequent cruises, Several regions of the sea floor throughout the OCNMS were surveyed and mosaicked at 1-meter pixel resolution. Imagery from the side scan sonar mapping efforts was integrated with other complementary data from a towed camera sled, ROVs, sedentary samples, and bathymetry records to describe geological and biological (where possible) aspects of habitat. Using a hierarchical deep-water marine benthic classification scheme (Greene et al. 1999), we created a preliminary map of various habitat polygon features for use in a geographical information system (GIS). This report provides a description of the mapping and groundtruthing efforts as well as results of the image classification procedure for each of the areas surveyed.</p>","language":"English","publisher":"U.S. Department of Commerce","publisherLocation":"Silver Spring, MD","usgsCitation":"Intelmann, S.S., Cochrane, G.R., Bowlby, C.E., Brancato, M.S., and Hyland, J., 2007, Survey report of NOAA Ship McArthur II cruises AR-04-04, AR-05-05 and AR-06-03: habitat classification of side scan sonar imagery in support of deep-sea coral/sponge explorations at the Olympic Coast National Marine Sanctuary, iv, 50 p.","productDescription":"iv, 50 p.","numberOfPages":"60","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292312,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":292311,"type":{"id":15,"text":"Index Page"},"url":"https://sanctuaries.noaa.gov/science/conservation/mcarthur.html"}],"country":"United States","state":"Washington","otherGeospatial":"Olympic Coast National Marine Sanctuary","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.547442,48.269384 ], [ -123.547442,48.100402 ], [ -123.145116,48.100402 ], [ -123.145116,48.269384 ], [ -123.547442,48.269384 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ef1ed8e4b0bfa1f993f017","contributors":{"authors":[{"text":"Intelmann, Steven S.","contributorId":69072,"corporation":false,"usgs":true,"family":"Intelmann","given":"Steven","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":498383,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cochrane, Guy R. 0000-0002-8094-4583 gcochrane@usgs.gov","orcid":"https://orcid.org/0000-0002-8094-4583","contributorId":2870,"corporation":false,"usgs":true,"family":"Cochrane","given":"Guy","email":"gcochrane@usgs.gov","middleInitial":"R.","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498379,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bowlby, C. Edward","contributorId":25478,"corporation":false,"usgs":true,"family":"Bowlby","given":"C.","email":"","middleInitial":"Edward","affiliations":[],"preferred":false,"id":498380,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brancato, Mary Sue","contributorId":67017,"corporation":false,"usgs":true,"family":"Brancato","given":"Mary","email":"","middleInitial":"Sue","affiliations":[],"preferred":false,"id":498382,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hyland, Jeffrey","contributorId":45640,"corporation":false,"usgs":true,"family":"Hyland","given":"Jeffrey","email":"","affiliations":[],"preferred":false,"id":498381,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
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