{"pageNumber":"175","pageRowStart":"4350","pageSize":"25","recordCount":37001,"records":[{"id":70068782,"text":"ofr20071047SRP007 - 2007 - Sm-Nd and U-Pb isotopic constraints for crustal evolution during Late Neoproterozic from rocks of the Schirmacher Oasis, East Antarctica: geodynamic development coeval with the East African Orogeny","interactions":[],"lastModifiedDate":"2014-01-13T12:56:23","indexId":"ofr20071047SRP007","displayToPublicDate":"2007-01-23T12:45:00","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-007","title":"Sm-Nd and U-Pb isotopic constraints for crustal evolution during Late Neoproterozic from rocks of the Schirmacher Oasis, East Antarctica: geodynamic development coeval with the East African Orogeny","docAbstract":"Recent post-750 Ma continental reconstructions constrain models for East African Orogeny formation and \nalso the scattered remnants of ~640 Ma granulites, whose genesis is controversial. One such Neoproterozoic granulite \nbelt is the Schirmacher Oasis in East Antarctica, isolated from the distinctly younger Pan-African orogen to the south in \nthe central Droning Maud Land. To ascertain the duration of granulite-facies events in these remnants, garnet Sm-Nd \nand monazite and titanite U-Pb IDTIMS geochronology was carried out on a range of metamorphic rocks. Garnet \nformation ages from a websterite enclave and gabbro were 660±48 Ma and 587±9 Ma respectively, and those from Stype granites were 598±4 Ma and 577±4 Ma. Monazites from metapelite and metaquartzite yielded lower intercept UPb ages of 629±3 Ma and 639±5 Ma, respectively. U-Pb titanite age from calcsilicate gneiss was 580±5 Ma. These \nindicate peak metamorphism to have occurred between 640 and 630 Ma, followed by near isobaric cooling to ~580 Ma. \nThough an origin as an exotic terrane from the East African Orogen cannot be discounted, from the present data there is \na greater likelihood that Mesoproterozoic microplate collision between Maud orogen and a northerly Lurio-Nampula \nblock resulted in formation of these granulite belt(s).","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/ofr20071047SRP007","usgsCitation":"Ravikant, V., Laux, J., and Pimentel, M., 2007, Sm-Nd and U-Pb isotopic constraints for crustal evolution during Late Neoproterozic from rocks of the Schirmacher Oasis, East Antarctica: geodynamic development coeval with the East African Orogeny: U.S. Geological Survey Open-File Report 2007-1047-SRP-007, 5 p., https://doi.org/10.3133/ofr20071047SRP007.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280882,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP007.JPG"},{"id":280881,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp007/of2007-1047srp007.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":"53cd7312e4b0b29085108b87","contributors":{"authors":[{"text":"Ravikant, V.","contributorId":6367,"corporation":false,"usgs":true,"family":"Ravikant","given":"V.","email":"","affiliations":[],"preferred":false,"id":488126,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Laux, J.H.","contributorId":79013,"corporation":false,"usgs":true,"family":"Laux","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":488127,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pimentel, M.M.","contributorId":99460,"corporation":false,"usgs":true,"family":"Pimentel","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":488128,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70059586,"text":"ofr20071047KP05 - 2007 - Landscape evolution of Antarctica","interactions":[],"lastModifiedDate":"2013-12-23T11:51:08","indexId":"ofr20071047KP05","displayToPublicDate":"2007-01-23T11:32:00","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-KP-05","title":"Landscape evolution of Antarctica","docAbstract":"The relative roles of fluvial versus glacial processes in shaping the landscape of Antarctica have been debated since the \nexpeditions of Robert Scott and Ernest Shackleton in the \nearly years of the 20th century. Here we build a synthesis of \nAntarctic landscape evolution based on the geomorphology of \npassive continental margins and former northern mid-latitude \nPleistocene ice sheets. What makes Antarctica so interesting \nis that the terrestrial landscape retains elements of a record of \nchange that extends back to the Oligocene. Thus there is the \npotential to link conditions on land with those in the oceans \nand atmosphere as the world switched from a greenhouse \nto a glacial world and the Antarctic ice sheet evolved to its \npresent state. In common with other continental fragments of \nGondwana there is a fluvial signature to the landscape in the \nform of the coastal erosion surfaces and escarpments, incised \nriver valleys, and a continent-wide network of river basins. \nA selective superimposed glacial signature reflects the presence or absence of ice at the pressure melting point. Earliest \ncontinental-scale ice sheets formed around 34 Ma, growing \nfrom local ice caps centered on mountain massifs, and featured phases of ice-sheet expansion and contraction. These \nice masses were most likely cold-based over uplands and \nwarm-based across lowlands and near their margins. For 20 \nmillion years ice sheets fluctuated on Croll-Milankovitch frequencies. At ~14 Ma the ice sheet expanded to its maximum \nand deepened a preexisting radial array of troughs selectively \nthrough the coastal mountains and eroded the continental\nshelf before retreating to its present dimensions at ~13.5 Ma. \nSubsequent changes in ice extent have been forced mainly by \nsea-level change. Weathering rates of exposed bedrock have \nbeen remarkably slow at high elevations around the margin of \nEast Antarctica under the hyperarid polar climate of the last \n~13.5 Ma, offering potential for a long quantitative record \nof ice-sheet evolution with techniques such as cosmogenic \nisotope analysis","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":"The National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP05","usgsCitation":"Jamieson, S., and Sugden, D., 2007, Landscape evolution of Antarctica: U.S. Geological Survey Open-File Report 2007-1047-KP-05, 16 p., https://doi.org/10.3133/ofr20071047KP05.","productDescription":"16 p.","startPage":"39","endPage":"54","costCenters":[],"links":[{"id":280509,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP05.JPG"},{"id":280508,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp05/of2007-1047kp05.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":"53cd6402e4b0b290850ff2ef","contributors":{"authors":[{"text":"Jamieson, S.S.R.","contributorId":9953,"corporation":false,"usgs":true,"family":"Jamieson","given":"S.S.R.","email":"","affiliations":[],"preferred":false,"id":487703,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sugden, D.E.","contributorId":80072,"corporation":false,"usgs":true,"family":"Sugden","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":487704,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":79587,"text":"ofr20061390 - 2007 - Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada","interactions":[{"subject":{"id":79587,"text":"ofr20061390 - 2007 - Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada","indexId":"ofr20061390","publicationYear":"2007","noYear":false,"title":"Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada"},"predicate":"SUPERSEDED_BY","object":{"id":80141,"text":"sir20075062 - 2007 - Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill-Hole Data in Yucca Flat, Nye County, Nevada","indexId":"sir20075062","publicationYear":"2007","noYear":false,"title":"Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill-Hole Data in Yucca Flat, Nye County, Nevada"},"id":1}],"supersededBy":{"id":80141,"text":"sir20075062 - 2007 - Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill-Hole Data in Yucca Flat, Nye County, Nevada","indexId":"sir20075062","publicationYear":"2007","noYear":false,"title":"Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill-Hole Data in Yucca Flat, Nye County, Nevada"},"lastModifiedDate":"2012-02-02T00:14:12","indexId":"ofr20061390","displayToPublicDate":"2007-01-20T00:00:00","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":"2006-1390","title":"Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada","docAbstract":"Yucca Flat is a topographic and structural basin in the northeastern part of the Nevada Test Site (NTS) in Nye County, Nevada, that has been the site of numerous underground nuclear tests; many of these tests occurred within the young alluvial basin-fill deposits. The migration of radionuclides to the Paleozoic carbonate aquifer involves passage through this thick, heterogeneous section of Tertiary and Quaternary rock. An understanding of the lateral and vertical changes in the material properties of young alluvial basin-fill deposits will aid in the further development of the hydrogeologic framework and the delineation of hydrostratigraphic units and hydraulic properties required for simulating ground-water flow in the Yucca Flat area. This report by the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, presents data and interpretation regarding the three-dimensional variability of the shallow alluvial aquifers in areas of testing at Yucca Flat, data that are potentially useful in the understanding of the subsurface flow system. This report includes a summary and interpretation of alluvial basin-fill stratigraphy in the Yucca Flat area based on drill hole data from 285 selected drill holes. Spatial variations in lithology and grain size of the Neogene basin-fill sediments can be established when data from numerous drill holes are considered together. Lithologic variations are related to different depositional environments within the basin including alluvial fan, channel, basin axis, and playa deposits.\r\n","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20061390","collaboration":"Prepared in cooperation with the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office under Interagency Agreement DE-AI52-01NV13944","usgsCitation":"Sweetkind, D., and Drake, R.M., 2007, Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada (Superseded by SIR 2007-5062): U.S. Geological Survey Open-File Report 2006-1390, iv, 17 p., https://doi.org/10.3133/ofr20061390.","productDescription":"iv, 17 p.","numberOfPages":"21","onlineOnly":"Y","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":190899,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9206,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2006/1390/","linkFileType":{"id":5,"text":"html"}}],"edition":"Superseded by SIR 2007-5062","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a870d","contributors":{"authors":[{"text":"Sweetkind, Donald S.","contributorId":18732,"corporation":false,"usgs":true,"family":"Sweetkind","given":"Donald S.","affiliations":[],"preferred":false,"id":290303,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Drake, Ronald M. II 0000-0002-1770-4667 rmdrake@usgs.gov","orcid":"https://orcid.org/0000-0002-1770-4667","contributorId":1353,"corporation":false,"usgs":true,"family":"Drake","given":"Ronald","suffix":"II","email":"rmdrake@usgs.gov","middleInitial":"M.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":290302,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70074344,"text":"ofr20071047SRP022 - 2007 - Lithospheric structure across the Transantarctic Mountains constrained by an analysis of gravity and thermal structure","interactions":[],"lastModifiedDate":"2014-01-29T11:50:41","indexId":"ofr20071047SRP022","displayToPublicDate":"2007-01-18T11:14:00","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-022","title":"Lithospheric structure across the Transantarctic Mountains constrained by an analysis of gravity and thermal structure","docAbstract":"The Transantarctic Mountains demarcate the boundary between the highly extended lithosphere of the West\nAntarctic Rift System and the Proterozoic East Antarctic Craton. Although the last stage of relief development was in\nthe Eocene, the TAM retain peak elevations in excess of 4500 m. This combination of old age and high relief are\ndifficult to reconcile, and the mechanism(s) responsible for uplift and support of this mountain range remain elusive and\ncontroversial. Recent seismic studies provide key constraints on the crustal structure. Here we constrain the lithospheric\nstructure across this boundary by forward modeling of the gravity based on a density structure that reflects the thermal\nstructure. Our results show that the observed very-long wavelength (>500km) gravity anomaly can be modeled by a\nWest Antarctic lithosphere ~60 km thick, and an East Antarctic lithosphere ~250 km thick. In addition, the gravity\nanomaly associated with the TAM can be modeled by including the thermal effects of heat producing elements\nconcentrated in the crust.","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/ofr20071047SRP022","usgsCitation":"Huerta, A.D., 2007, Lithospheric structure across the Transantarctic Mountains constrained by an analysis of gravity and thermal structure: U.S. Geological Survey Open-File Report 2007-1047-SRP-022, 4 p., https://doi.org/10.3133/ofr20071047SRP022.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281653,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP022.png"},{"id":281652,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp022/of2007-1047srp022.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":"53cd64cfe4b0b290850ffb0d","contributors":{"authors":[{"text":"Huerta, Audrey D.","contributorId":72300,"corporation":false,"usgs":true,"family":"Huerta","given":"Audrey","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":489536,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70059624,"text":"ofr20071047KP07 - 2007 - Late Cenozoic Climate History of the Ross Embayment from the AND-1B Drill Hole: Culmination of Three Decades of Antarctic Margin Drilling","interactions":[],"lastModifiedDate":"2013-12-23T16:24:22","indexId":"ofr20071047KP07","displayToPublicDate":"2007-01-17T16:00:00","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-KP-07","title":"Late Cenozoic Climate History of the Ross Embayment from the AND-1B Drill Hole: Culmination of Three Decades of Antarctic Margin Drilling","docAbstract":"Because of the paucity of exposed rock, the direct physical \nrecord of Antarctic Cenozoic glacial history has become \nknown only recently and then largely from offshore shelf \nbasins through seismic surveys and drilling. The number \nof holes on the continental shelf has been small and largely \nconfined to three areas (McMurdo Sound, Prydz Bay, and \nAntarctic Peninsula), but even in McMurdo Sound, where \nOligocene and early Miocene strata are well cored, the late Cenozoic is poorly known and dated. The latest Antarctic \ngeological drilling program, ANDRILL, successfully cored \na 1285-m-long record of climate history spanning the last 13 \nm.y. from subsea-floor sediment beneath the McMurdo Ice \nShelf (MIS), using drilling systems specially developed for \noperating through ice shelves. The cores provide the most \ncomplete Antarctic record to date of ice-sheet and climate \nfluctuations for this period of Earth’s history. The >60 cycles \nof advance and retreat of the grounded ice margin preserved \nin the AND-1B record the evolution of the Antarctic ice sheet \nsince a profound global cooling step in deep-sea oxygen \nisotope records ~14 m.y.a. A feature of particular interest is a \n~90-m-thick interval of diatomite deposited during the warm \nPliocene and representing an extended period (~200,000 \nyears) of locally open water, high phytoplankton productivity, and retreat of the glaciers on land.","language":"English","publisher":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP07","usgsCitation":"Naish, T., Powell, R., Barrett, P.J., Levy, R., Henrys, S., Wilson, G., Krissek, L., Niessen, F., Pompilio, M., Ross, J., Scherer, R., Talarico, F., Pyne, A., and ANDRILL-MIS Science team, 2007, Late Cenozoic Climate History of the Ross Embayment from the AND-1B Drill Hole: Culmination of Three Decades of Antarctic Margin Drilling: U.S. Geological Survey Open-File Report 2007-1047-KP-07, 12 p., https://doi.org/10.3133/ofr20071047KP07.","productDescription":"12 p.","startPage":"71","endPage":"82","numberOfPages":"12","costCenters":[],"links":[{"id":280529,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP07.JPG"},{"id":280528,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp07/of2007-1047kp07.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":"53cd6422e4b0b290850ff42b","contributors":{"authors":[{"text":"Naish, T.R.","contributorId":9168,"corporation":false,"usgs":true,"family":"Naish","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":487741,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powell, R.D.","contributorId":74015,"corporation":false,"usgs":true,"family":"Powell","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":487749,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barrett, P. J.","contributorId":96347,"corporation":false,"usgs":false,"family":"Barrett","given":"P.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":487752,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Levy, R.H.","contributorId":100278,"corporation":false,"usgs":true,"family":"Levy","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":487753,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Henrys, S.","contributorId":27632,"corporation":false,"usgs":true,"family":"Henrys","given":"S.","email":"","affiliations":[],"preferred":false,"id":487744,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wilson, G.S.","contributorId":16603,"corporation":false,"usgs":true,"family":"Wilson","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":487743,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Krissek, L.A.","contributorId":63712,"corporation":false,"usgs":true,"family":"Krissek","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":487748,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Niessen, F.","contributorId":56063,"corporation":false,"usgs":true,"family":"Niessen","given":"F.","email":"","affiliations":[],"preferred":false,"id":487745,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Pompilio, M.","contributorId":61261,"corporation":false,"usgs":true,"family":"Pompilio","given":"M.","email":"","affiliations":[],"preferred":false,"id":487746,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Ross, J.","contributorId":9076,"corporation":false,"usgs":true,"family":"Ross","given":"J.","email":"","affiliations":[],"preferred":false,"id":487740,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Scherer, R.","contributorId":10752,"corporation":false,"usgs":true,"family":"Scherer","given":"R.","email":"","affiliations":[],"preferred":false,"id":487742,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Talarico, F.","contributorId":84585,"corporation":false,"usgs":true,"family":"Talarico","given":"F.","email":"","affiliations":[],"preferred":false,"id":487751,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Pyne, A.","contributorId":61332,"corporation":false,"usgs":true,"family":"Pyne","given":"A.","email":"","affiliations":[],"preferred":false,"id":487747,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"ANDRILL-MIS Science team","contributorId":128178,"corporation":true,"usgs":false,"organization":"ANDRILL-MIS Science team","id":535615,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}}
,{"id":70065939,"text":"ofr20071047SRP001 - 2007 - Advances through collaboration: sharing seismic reflection data via the Antarctic Seismic Data Library System for Cooperative Research (SDLS)","interactions":[],"lastModifiedDate":"2014-01-07T14:09:02","indexId":"ofr20071047SRP001","displayToPublicDate":"2007-01-17T13:44:00","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-001","title":"Advances through collaboration: sharing seismic reflection data via the Antarctic Seismic Data Library System for Cooperative Research (SDLS)","docAbstract":"The Antarctic Seismic Data Library System for Cooperative Research (SDLS) has served for the past 16 \nyears under the auspices of the Antarctic Treaty (ATCM Recommendation XVI-12) as a role model for collaboration \nand equitable sharing of Antarctic multichannel seismic reflection (MCS) data for geoscience studies. During this \nperiod, collaboration in MCS studies has advanced deciphering the seismic stratigraphy and structure of Antarctica’s \ncontinental margin more rapidly than previously. MCS data compilations provided the geologic framework for scientific \ndrilling at several Antarctic locations and for high-resolution seismic and sampling studies to decipher Cenozoic \ndepositional paleoenvironments. The SDLS successes come from cooperation of National Antarctic Programs and \nindividual investigators in “on-time” submissions of their MCS data. Most do, but some do not. The SDLS \ncommunity has an International Polar Year (IPY) goal of all overdue MCS data being sent to the SDLS by end of IPY. \nThe community science objective is to compile all Antarctic MCS data to derive a unified seismic stratigraphy for the \ncontinental margin – a stratigraphy to be used with drilling data to derive Cenozoic circum-Antarctic paleobathymetry \nmaps and local-to-regional scale paleoenvironmental histories.","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/ofr20071047SRP001","usgsCitation":"Wardell, N., Childs, J., and Cooper, A.K., 2007, Advances through collaboration: sharing seismic reflection data via the Antarctic Seismic Data Library System for Cooperative Research (SDLS): U.S. Geological Survey Open-File Report 2007-1047-SRP-001, Text: 4 p.; Plate: 1 PDF poster, https://doi.org/10.3133/ofr20071047SRP001.","productDescription":"Text: 4 p.; Plate: 1 PDF poster","additionalOnlineFiles":"Y","costCenters":[],"links":[{"id":280663,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP001.JPG"},{"id":280660,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp001/of2007-1047srp001_text.pdf"},{"id":280659,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp001/of2007-1047srp001_plate1.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":"53cd4b3ae4b0b290850f03ed","contributors":{"authors":[{"text":"Wardell, N.","contributorId":71093,"corporation":false,"usgs":true,"family":"Wardell","given":"N.","email":"","affiliations":[],"preferred":false,"id":487937,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Childs, J.R.","contributorId":63011,"corporation":false,"usgs":true,"family":"Childs","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":487936,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cooper, A. K.","contributorId":50149,"corporation":false,"usgs":true,"family":"Cooper","given":"A.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":487935,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70074265,"text":"ofr20071047SRP019 - 2007 - Paleocene and Maastrichtian calcareous nannofossils from clasts in Pleistocene  glaciomarine muds from the northern James Ross Basin, western Weddell Sea,  Antarctica","interactions":[],"lastModifiedDate":"2014-01-29T08:24:34","indexId":"ofr20071047SRP019","displayToPublicDate":"2007-01-17T11:18:00","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-019","title":"Paleocene and Maastrichtian calcareous nannofossils from clasts in Pleistocene  glaciomarine muds from the northern James Ross Basin, western Weddell Sea,  Antarctica","docAbstract":"Site NBP0602A-9, drilled during the SHALDRIL II cruise of the RV/IB Nathaniel B. Palmer, includes two \nholes located in the northern James Ross Basin in the western Weddell Sea, very close to the eastern margin of the \nAntarctic Peninsula. Sediment from both holes consists of very dark grey, pebbly, sandy mud, grading to very dark \ngreenish grey, pebbly, silty mud in the lower 2.5 m of the second hole. In addition to abundant pebbles found \nthroughout the cores, both holes contain numerous sedimentary clasts. Biostratigraphic analysis of diatom assemblages \nfrom the glaciomarine muds yields rare to few, poorly preserved diatoms. The mixed assemblage consists mostly of \nextant species, but also includes reworked taxa that range to the Miocene. The absence of Rouxia spp., however, \nsuggests the sediment is late Pleistocene in age. The sedimentary clasts, on the other hand, are nearly barren of diatoms, \nbut contain rare, moderately to well-preserved calcareous nannofossils. The clasts contain three distinct assemblages. \nTwo clasts are assigned an early Maastrichtian age based on the presence of Biscutum magnum and Nephrolithus \ncorystus, while one clast yields a late Maastrichtian age based on the presence of Nephrolithus frequens. These samples \nalso contain other characteristic Late Cretaceous species, including Biscutum notaculum, Cribrosphaerella daniae, \nEiffellithus gorkae, Kamptnerius magnificus, and Prediscosphaera bukryi. Two samples yield an early Paleocene \nassemblage dominated by Hornibrookina teuriensis. The Maastrichtian assemblages are similar to those found in the \nLópez de Bertodano Formation on Seymour and Snow Hill Islands, making it the likely source area for the Cretaceous \nclast material. Although no calcareous nannofossils have been reported from Paleocene formations on these islands, the \noccurrence of calcareous foraminifers suggests other calcareous plankton may be present; thus the Paleocene clasts \nlikely also originated from the Seymour Island area.","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/ofr20071047SRP019","usgsCitation":"Kulhanek, D., 2007, Paleocene and Maastrichtian calcareous nannofossils from clasts in Pleistocene  glaciomarine muds from the northern James Ross Basin, western Weddell Sea,  Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-019, 5 p., https://doi.org/10.3133/ofr20071047SRP019.","productDescription":"5 p.","costCenters":[],"links":[{"id":281634,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP019.png"},{"id":281605,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp019/of2007-1047srp019.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":"53cd6a76e4b0b2908510344f","contributors":{"authors":[{"text":"Kulhanek, D.K.","contributorId":66172,"corporation":false,"usgs":true,"family":"Kulhanek","given":"D.K.","email":"","affiliations":[],"preferred":false,"id":489461,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70059156,"text":"ofr20071047KP04 - 2007 - Antarctica‘s continent-ocean transitions: consequences for tectonic reconstructions","interactions":[],"lastModifiedDate":"2013-12-18T15:45:40","indexId":"ofr20071047KP04","displayToPublicDate":"2007-01-16T15:10:00","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-KP-04","title":"Antarctica‘s continent-ocean transitions: consequences for tectonic reconstructions","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":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP04","usgsCitation":"Gohl, K., 2007, Antarctica‘s continent-ocean transitions: consequences for tectonic reconstructions: U.S. Geological Survey Open-File Report 2007-1047-KP-04, 10 p., https://doi.org/10.3133/ofr20071047KP04.","productDescription":"10 p.","startPage":"29","endPage":"38","numberOfPages":"10","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280416,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP04.png"},{"id":280415,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp04/of2007-1047kp04.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":"53cd4d74e4b0b290850f1834","contributors":{"authors":[{"text":"Gohl, K.","contributorId":53285,"corporation":false,"usgs":true,"family":"Gohl","given":"K.","email":"","affiliations":[],"preferred":false,"id":487508,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70059150,"text":"ofr20071047KP03 - 2007 - 100 Million Years of Antarctic Climate Evolution: Evidence from Fossil Plants","interactions":[],"lastModifiedDate":"2013-12-18T14:45:45","indexId":"ofr20071047KP03","displayToPublicDate":"2007-01-16T13:56:00","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-KP-03","title":"100 Million Years of Antarctic Climate Evolution: Evidence from Fossil Plants","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":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP03","usgsCitation":"Francis, J., Ashworth, A., Cantrill, D., Crame, J., Howe, J., Stephens, J., Tosolini, A., and Thorn, V., 2007, 100 Million Years of Antarctic Climate Evolution: Evidence from Fossil Plants: U.S. Geological Survey Open-File Report 2007-1047-KP-03, 10 p., https://doi.org/10.3133/ofr20071047KP03.","productDescription":"10 p.","startPage":"19","endPage":"28","numberOfPages":"10","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280414,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP03.png"}],"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":"53cd4907e4b0b290850eed3b","contributors":{"authors":[{"text":"Francis, J.E.","contributorId":61249,"corporation":false,"usgs":true,"family":"Francis","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":487505,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ashworth, A.","contributorId":7988,"corporation":false,"usgs":true,"family":"Ashworth","given":"A.","email":"","affiliations":[],"preferred":false,"id":487501,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cantrill, D.J.","contributorId":41321,"corporation":false,"usgs":true,"family":"Cantrill","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":487502,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Crame, J.A.","contributorId":50438,"corporation":false,"usgs":true,"family":"Crame","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":487504,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Howe, J.","contributorId":98679,"corporation":false,"usgs":true,"family":"Howe","given":"J.","email":"","affiliations":[],"preferred":false,"id":487507,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Stephens, J.","contributorId":46403,"corporation":false,"usgs":true,"family":"Stephens","given":"J.","affiliations":[],"preferred":false,"id":487503,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Tosolini, A.-M.","contributorId":6752,"corporation":false,"usgs":true,"family":"Tosolini","given":"A.-M.","email":"","affiliations":[],"preferred":false,"id":487500,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Thorn, V.","contributorId":75428,"corporation":false,"usgs":true,"family":"Thorn","given":"V.","email":"","affiliations":[],"preferred":false,"id":487506,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70059145,"text":"ofr20071047KP02 - 2007 - Antarctica Earth System Science in the International Polar Year 2007-2008","interactions":[],"lastModifiedDate":"2013-12-18T13:50:30","indexId":"ofr20071047KP02","displayToPublicDate":"2007-01-16T13:20:00","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-KP-02","title":"Antarctica Earth System Science in the International Polar Year 2007-2008","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":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP02","usgsCitation":"Bell, R., 2007, Antarctica Earth System Science in the International Polar Year 2007-2008: U.S. Geological Survey Open-File Report 2007-1047-KP-02, 12 p, https://doi.org/10.3133/ofr20071047KP02.","productDescription":"12 p","startPage":"7","endPage":"18","numberOfPages":"12","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280412,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp02/of2007-1047kp02.pdf"},{"id":280413,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP02.png"}],"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":"53cd4d6ee4b0b290850f182e","contributors":{"authors":[{"text":"Bell, R.E.","contributorId":70010,"corporation":false,"usgs":true,"family":"Bell","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":487494,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70068783,"text":"ofr20071047SRP008 - 2007 - IGY to IPY, the U.S. Antarctic oversnow and airborne geophysical-glaciological research program from 1957 to 1964 from the view of a young graduate student","interactions":[],"lastModifiedDate":"2018-03-15T14:17:37","indexId":"ofr20071047SRP008","displayToPublicDate":"2007-01-16T13:00:00","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-008","title":"IGY to IPY, the U.S. Antarctic oversnow and airborne geophysical-glaciological research program from 1957 to 1964 from the view of a young graduate student","docAbstract":"When 12 countries established scientific stations in Antarctica for the 1957-58 (IGY), the Cold War was at \nits height, seven countries had made claims in Antarctica, and the Antarctic Treaty was in the future. The only major \nfield project of the U.S. IGY Antarctic program was series of oversnow traverses, starting in 1957, making seismic \nreflection ice soundings (and other geophysical measurements) and glaciological studies. The U.S.S.R. and France made \nsimilar traverses coordinated through the IGY. Although geology and topographic mapping were not part of the IGY \nprogram because of the claims issue and the possibility of mineral resources, the oversnow traverse parties did geologic \nwork, during which unknown mountains were discovered. The oversnow traverses continued through 1966 and resulted \nin an excellent first approximation of the snow surface elevation, ice thickness and bed topography of Antarctica, as \nwell as the mean annual temperature of that era and snow accumulation.","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/ofr20071047SRP008","usgsCitation":"Behrendt, J.C., 2007, IGY to IPY, the U.S. Antarctic oversnow and airborne geophysical-glaciological research program from 1957 to 1964 from the view of a young graduate student: U.S. Geological Survey Open-File Report 2007-1047-SRP-008, 4 p., https://doi.org/10.3133/ofr20071047SRP008.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280885,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP008.JPG"},{"id":280884,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp008/of2007-1047srp008.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":"53cd61dfe4b0b290850fdcf1","contributors":{"authors":[{"text":"Behrendt, John C. jbehrendt@usgs.gov","contributorId":25945,"corporation":false,"usgs":true,"family":"Behrendt","given":"John","email":"jbehrendt@usgs.gov","middleInitial":"C.","affiliations":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true},{"id":213,"text":"Crustal Imaging and Characterization Team","active":false,"usgs":true}],"preferred":false,"id":488129,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70068750,"text":"ofr20071047SRP004 - 2007 - The Ellsworth Mountains: critical and enduringly enigmatic","interactions":[],"lastModifiedDate":"2014-01-13T11:48:59","indexId":"ofr20071047SRP004","displayToPublicDate":"2007-01-16T11:22:00","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-004","title":"The Ellsworth Mountains: critical and enduringly enigmatic","docAbstract":"The Ellsworth Mountains, first mapped under the leadership of Campbell Craddock, pose critical geological \nenigmas, solved and unsolved. The isolation of the mountains, their abrupt structural terminations and Paleozoic \nstratigraphic affinities are explained by rotation from the cratonic margin during Gondwanaland breakup. The \nmechanism remains obscure. The absence of intense folding associated with the Cambro-Ordovician Ross orogeny can \nbe ascribed to local extension along a subducting margin. Yet tantalizing questions regarding possible Precambrian \nconnections to Laurentia remain, and the cause of the post-Permian Gondwanide folding is controversial.\nThe elevation (~5000m) is high for an early Mesozoic fold belt. Thermal uplift could have been initiated during \nJurassic-Cretaceous block rotation and Weddell Sea opening and continued into the Cenozoic. The history of glaciation \nprovides input for models of ice loading and unloading. Measurements of present-day uplift test these models and help \nassess change in the mass of the ice sheet and hence in global sea level.","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/ofr20071047SRP004","usgsCitation":"Dalziel, I., 2007, The Ellsworth Mountains: critical and enduringly enigmatic: U.S. Geological Survey Open-File Report 2007-1047-SRP-004, 5 p., https://doi.org/10.3133/ofr20071047SRP004.","productDescription":"5 p.","costCenters":[],"links":[{"id":280869,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP004.JPG"},{"id":280867,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp004/of2007-1047srp004.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":"53cd76e8e4b0b2908510b33d","contributors":{"authors":[{"text":"Dalziel, I.W.D.","contributorId":44070,"corporation":false,"usgs":true,"family":"Dalziel","given":"I.W.D.","email":"","affiliations":[],"preferred":false,"id":488110,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70059132,"text":"ofr20071047KPIntro - 2007 - Introduction to the Keynote Papers","interactions":[],"lastModifiedDate":"2013-12-18T12:07:17","indexId":"ofr20071047KPIntro","displayToPublicDate":"2007-01-16T10:56:00","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-KP-Intro","title":"Introduction to the Keynote Papers","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":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KPIntro","usgsCitation":"Cooper, A.K., Barrett, P., Stagg, H., Storey, B., Stump, E., and Wise, W., 2007, Introduction to the Keynote Papers: U.S. Geological Survey Open-File Report 2007-1047-KP-Intro, 12 p., https://doi.org/10.3133/ofr20071047KPIntro.","productDescription":"12 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280406,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KPIntro.png"},{"id":280405,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp_intro/index.html"},{"id":280404,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp_intro/of2007-1047kp_intro.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":"53cd62fbe4b0b290850fe878","contributors":{"authors":[{"text":"Cooper, Alan K. acooper@usgs.gov","contributorId":2854,"corporation":false,"usgs":true,"family":"Cooper","given":"Alan","email":"acooper@usgs.gov","middleInitial":"K.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":487482,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barrett, Peter","contributorId":64986,"corporation":false,"usgs":true,"family":"Barrett","given":"Peter","affiliations":[],"preferred":false,"id":487487,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stagg, Howard","contributorId":11498,"corporation":false,"usgs":true,"family":"Stagg","given":"Howard","email":"","affiliations":[],"preferred":false,"id":487483,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Storey, Bryan","contributorId":33613,"corporation":false,"usgs":true,"family":"Storey","given":"Bryan","email":"","affiliations":[],"preferred":false,"id":487485,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stump, Edmund","contributorId":22845,"corporation":false,"usgs":true,"family":"Stump","given":"Edmund","affiliations":[],"preferred":false,"id":487484,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wise, Woody","contributorId":37239,"corporation":false,"usgs":true,"family":"Wise","given":"Woody","email":"","affiliations":[],"preferred":false,"id":487486,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":79558,"text":"ofr20061199 - 2007 - Surficial geology in central Narragansett Bay, Rhode Island: interpretations of sidescan sonar and multibeam bathymetry","interactions":[],"lastModifiedDate":"2024-09-09T17:05:34.555145","indexId":"ofr20061199","displayToPublicDate":"2007-01-13T00:00:00","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":"2006-1199","title":"Surficial geology in central Narragansett Bay, Rhode Island: interpretations of sidescan sonar and multibeam bathymetry","docAbstract":"<p>The United States Geological Survey (USGS) is working cooperatively with the National Oceanic and Atmospheric Association (NOAA) to interpret the surficial geology in estuaries along the coast of the northeastern United States. The purpose of our present study is to determine the distributions of surficial sediments and sedimentary environments in two areas of Narragansett Bay, Rhode Island, using sidescan sonar imagery, high-resolution bathymetry, and sediment data. This study provides a framework for future studies on topics such as benthic habitats and oceanographic processes that control the transport and distribution of bottom sediments. This study mapped two separate areas totalling about 33 km² One area lies in West Passage between Plum Point, Quonset Point and Conanicut Island; the other area lies in East Passage around Dyer Island and extends south of Prudence Island.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20061199","usgsCitation":"McMullen, K.Y., Poppe, L.J., Signell, R.P., Denny, J.F., Crocker, J.M., Beaver, A.L., and Schattgen, P., 2007, Surficial geology in central Narragansett Bay, Rhode Island: interpretations of sidescan sonar and multibeam bathymetry: U.S. Geological Survey Open-File Report 2006-1199, HTML Document, https://doi.org/10.3133/ofr20061199.","productDescription":"HTML Document","costCenters":[{"id":680,"text":"Woods Hole Science Center","active":false,"usgs":true}],"links":[{"id":9174,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2006/1199/","text":"Index Page","linkFileType":{"id":5,"text":"html"}},{"id":195452,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20061199.PNG"},{"id":395720,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_80461.htm"}],"country":"United States","state":"Rhode Island","otherGeospatial":"Narragansett Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -71.41593933105469,\n              41.5198886863019\n            ],\n            [\n              -71.28787994384766,\n              41.5198886863019\n            ],\n            [\n              -71.28787994384766,\n              41.6010669423553\n            ],\n            [\n              -71.41593933105469,\n              41.6010669423553\n            ],\n            [\n              -71.41593933105469,\n              41.5198886863019\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","contact":"<p><a href=\"https://pubs.usgs.gov/contact\" data-mce-href=\"../contact\">Contact Pubs Warehouse</a></p>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae3e4b07f02db689168","contributors":{"authors":[{"text":"McMullen, Katherine Y. kmcmullen@usgs.gov","contributorId":24036,"corporation":false,"usgs":true,"family":"McMullen","given":"Katherine","email":"kmcmullen@usgs.gov","middleInitial":"Y.","affiliations":[],"preferred":false,"id":290227,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poppe, Larry J.","contributorId":55913,"corporation":false,"usgs":true,"family":"Poppe","given":"Larry","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":290230,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Signell, Richard P. rsignell@usgs.gov","contributorId":1435,"corporation":false,"usgs":true,"family":"Signell","given":"Richard","email":"rsignell@usgs.gov","middleInitial":"P.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":290226,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Denny, Jane F. 0000-0002-3472-618X jdenny@usgs.gov","orcid":"https://orcid.org/0000-0002-3472-618X","contributorId":418,"corporation":false,"usgs":true,"family":"Denny","given":"Jane","email":"jdenny@usgs.gov","middleInitial":"F.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":290225,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Crocker, Jim M.","contributorId":36642,"corporation":false,"usgs":true,"family":"Crocker","given":"Jim","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":290228,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Beaver, Andrew L.","contributorId":78832,"corporation":false,"usgs":true,"family":"Beaver","given":"Andrew","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":290231,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Schattgen, P. 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,{"id":70066097,"text":"ofr20071047SRP003 - 2007 - The dinosaurs of the Early Jurassic Hanson Formation of the Central Transantarctic Mountains: phylogenetic review and synthesis","interactions":[],"lastModifiedDate":"2014-01-13T11:49:42","indexId":"ofr20071047SRP003","displayToPublicDate":"2007-01-07T14:48:00","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-003","title":"The dinosaurs of the Early Jurassic Hanson Formation of the Central Transantarctic Mountains: phylogenetic review and synthesis","docAbstract":"The Hanson Formation of the Central Transantarctic Mountains has yielded a diverse Early Jurassic\nterrestrial fauna, which includes the nearly complete theropod dinosaur, Cryolophosaurus ellioti, and a fragmentary\nbasal sauropodomorph dinosaur. The Hanson Formation dinosaurs are important for understanding early dinosaur\nevolution because: 1) they preserve a mosaic of morphological traits that render them useful for interpreting poorly\nknown parts of the dinosaur evolutionary tree; 2) they are from the Early Jurassic, a critical period in early dinosaur\nevolution about which knowledge is scant; and 3) they are the only known Early Jurassic dinosaurs from Antarctica,\nmaking them particularly valuable for understanding patterns of biotic interchange during this time. Recent research\nsuggests that Cryolophosaurus belongs to a geographically widespread clade of mid-sized, Early Jurassic theropods\nwith cranial crests that includes Dilophosaurus wetherilli, ‘Dilophosaurus’ sinensis, and Dracovenator, and renders\nCoelophysoidea sensu lato non-monophyletic. The Antarctic sauropodomorph represents a distinct taxon that is a\nmember of a similarly diverse massospondylid clade. This taxon shares a number of features with more derived\nsauropodomorphs, and provides additional evidence for the paraphyly of Prosauropoda. The phylogenetic relationships\nof the Antarctic dinosaurs are also consistent with a pattern of worldwide faunal homogeneity between Early Jurassic\ncontinental biotas. Furthermore, these analyses support a “ladder-like” arrangement for basal theropod and basal\nsauropodomorph phylogeny, suggesting that these groups passed through “coelophysoid” and “prosauropod” stages of\nmorphological organization early in their respective evolutionary histories.","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/ofr20071047SRP003","usgsCitation":"Smith, N., Makovicky, P., Hammer, W., and Currie, P., 2007, The dinosaurs of the Early Jurassic Hanson Formation of the Central Transantarctic Mountains: phylogenetic review and synthesis: U.S. Geological Survey Open-File Report 2007-1047-SRP-003, 5 p., https://doi.org/10.3133/ofr20071047SRP003.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280687,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP003.JPG"},{"id":280684,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp003/of2007-1047srp003.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":"53cd77a6e4b0b2908510ba5d","contributors":{"authors":[{"text":"Smith, N.D.","contributorId":99883,"corporation":false,"usgs":true,"family":"Smith","given":"N.D.","email":"","affiliations":[],"preferred":false,"id":487956,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Makovicky, P.J.","contributorId":53692,"corporation":false,"usgs":true,"family":"Makovicky","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":487953,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hammer, W.R.","contributorId":74666,"corporation":false,"usgs":true,"family":"Hammer","given":"W.R.","email":"","affiliations":[],"preferred":false,"id":487955,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Currie, P.J.","contributorId":64994,"corporation":false,"usgs":true,"family":"Currie","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":487954,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70065972,"text":"ofr20071047SRP002 - 2007 - Antarctic Multibeam Bathymetry and Geophysical Data Synthesis: an on-line digital data Resource for marine geoscience research in the Southern Ocean","interactions":[],"lastModifiedDate":"2014-01-13T11:56:18","indexId":"ofr20071047SRP002","displayToPublicDate":"2007-01-07T14:13:00","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-002","title":"Antarctic Multibeam Bathymetry and Geophysical Data Synthesis: an on-line digital data Resource for marine geoscience research in the Southern Ocean","docAbstract":"The Antarctic Multibeam Bathymetry and Geophysical Data Synthesis(AMBS) is a web-accessible data\nresource for marine geoscience research in the Southern Ocean. The primary focusisto preserve and provide public\naccessto multibeam bathymetry acquired during expeditions of research vesselssupported by the U.S. National Science\nFoundation. Since itsinception in 2003, our primary goal has been to facilitate visualization and exploration of the subsea landscape to the full detail of the original data by both specialists and non-specialists. Visualization across a widerange of map scales at high latitudesis made possible by dynamic accessto a gridded synthesisin both Polar and\nMercator projections. A second goal isto support multi-disciplinary research needs by offering data discovery and\nvisualization of numerous complementary geoscience datasets.In thisreport, we describe the design objectives and\narchitecture of the AMBS, as well asrecent developmentsregarding data submission and delivery via Web Services","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/ofr20071047SRP002","usgsCitation":"Carbotte, S., Ryan, W., O’Hara, S., Arko, R., Goodwillie, A., Melkonian, A., Weissel, R., and Ferrini, V., 2007, Antarctic Multibeam Bathymetry and Geophysical Data Synthesis: an on-line digital data Resource for marine geoscience research in the Southern Ocean: U.S. Geological Survey Open-File Report 2007-1047-SRP-002, 4 p., https://doi.org/10.3133/ofr20071047SRP002.","productDescription":"4 p.","costCenters":[],"links":[{"id":280672,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP002.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":"53cd4d69e4b0b290850f1824","contributors":{"authors":[{"text":"Carbotte, S.M.","contributorId":91400,"corporation":false,"usgs":true,"family":"Carbotte","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":487942,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ryan, William B. F.","contributorId":86486,"corporation":false,"usgs":false,"family":"Ryan","given":"William B. F.","affiliations":[{"id":7135,"text":"Lamont Doherty Earth Observatory, Columbia University, Palisades, NY","active":true,"usgs":false}],"preferred":false,"id":487941,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"O’Hara, S.","contributorId":95790,"corporation":false,"usgs":true,"family":"O’Hara","given":"S.","email":"","affiliations":[],"preferred":false,"id":487944,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Arko, R.","contributorId":12771,"corporation":false,"usgs":true,"family":"Arko","given":"R.","email":"","affiliations":[],"preferred":false,"id":487938,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Goodwillie, A.","contributorId":91401,"corporation":false,"usgs":true,"family":"Goodwillie","given":"A.","email":"","affiliations":[],"preferred":false,"id":487943,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Melkonian, A.","contributorId":27352,"corporation":false,"usgs":true,"family":"Melkonian","given":"A.","email":"","affiliations":[],"preferred":false,"id":487940,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Weissel, R.A.","contributorId":103565,"corporation":false,"usgs":true,"family":"Weissel","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":487945,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Ferrini, V.L.","contributorId":26965,"corporation":false,"usgs":true,"family":"Ferrini","given":"V.L.","email":"","affiliations":[],"preferred":false,"id":487939,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70065903,"text":"ofr20071047KP10 - 2007 - The significance of Antarctica for studies of global geodynamics","interactions":[],"lastModifiedDate":"2014-01-07T13:21:37","indexId":"ofr20071047KP10","displayToPublicDate":"2007-01-07T13:11:00","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-KP-10","title":"The significance of Antarctica for studies of global geodynamics","docAbstract":"Antarctica has geometric significance for global plate kinematic studies, because it links seafloor spreading systems of \nthe African hemisphere (Indian and Atlantic Oceans) with \nthose of the Pacific. Inferences of plate motions back to 44 \nMa, around the onset of rapid spreading south of Australia \nand formation of a new boundary through New Zealand, are \nconsistent with Antarctic rifting and formation of the Adare \nBasin during 44-26 Ma (i.e., no additional plate motions \nare required in the South Pacific). The time period 52-44 \nMa represents a profound global and South Pacific tectonic \nchange, and significant details remain unresolved. For 74 Ma \na significant nonclosure of the South Pacific plate-motion circuit is identified if Antarctic motion is not included. Alternate \ninferences of motion through Antarctica during the interval \n74-44 Ma imply significantly different subduction volumes \nand directions around the Pacific, and imply different relative \nmotions between hotspots","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":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP10","usgsCitation":"Sutherland, R., 2007, The significance of Antarctica for studies of global geodynamics: U.S. Geological Survey Open-File Report 2007-1047-KP-10, 10 p., https://doi.org/10.3133/ofr20071047KP10.","productDescription":"10 p.","startPage":"115","endPage":"124","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280655,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP10.JPG"},{"id":280654,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp10/of2007-1047kp10.pdf"}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,90.0 ], [ 180.0,90.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7897e4b0b2908510c41a","contributors":{"authors":[{"text":"Sutherland, R.","contributorId":48089,"corporation":false,"usgs":true,"family":"Sutherland","given":"R.","email":"","affiliations":[],"preferred":false,"id":487931,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70074796,"text":"ofr20071047SRP036 - 2007 - Solar forcing and El Niño-Southern Oscillation (ENSO) influences on  productivity cycles interpreted from a late-Holocene high-resolution marine  sediment record, Adélie Drift, East Antarctic Margin","interactions":[],"lastModifiedDate":"2014-02-10T13:30:28","indexId":"ofr20071047SRP036","displayToPublicDate":"2007-01-02T16:29:00","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-036","title":"Solar forcing and El Niño-Southern Oscillation (ENSO) influences on  productivity cycles interpreted from a late-Holocene high-resolution marine  sediment record, Adélie Drift, East Antarctic Margin","docAbstract":"Core JPC17B was collected from the Adélie-Drift, a nearly 300-m thick drift deposit at 140ºE along the\nIndian Ocean sector of the Antarctic continental shelf. Sediments consist of nearly continuously laminated diatom mud and diatom ooze, with accumulation rates on the order of 20-21 m kyr<sup>-1</sup> based on 10 AMS radiocarbon dates. Spectral analysis was performed on time series of opal content, d<sup>13</sup>C<sub>org</sub>, Ti content, and Ba content. Strong decadal to century-\nscale variability is present in all proxies. Opal and Ti-time series show strong variance at periods of 11, 22 and 110-\nyears, which are suggestive of solar forcing. Ba-time series exhibits strong variance at a period of 3-3.6-yr, consistent with possible El Niño-Southern-Oscillation (ENSO) forcing.","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/ofr20071047SRP036","usgsCitation":"Costa, E., Dunbar, R., Kryc, K., Mucciarone, D., Brachfeld, S., Roark, E., Manley, P., Murray, R., and Leventer, A., 2007, Solar forcing and El Niño-Southern Oscillation (ENSO) influences on  productivity cycles interpreted from a late-Holocene high-resolution marine  sediment record, Adélie Drift, East Antarctic Margin: U.S. Geological Survey Open-File Report 2007-1047-SRP-036, 6 p., https://doi.org/10.3133/ofr20071047SRP036.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282218,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP036.JPG"},{"id":282217,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp036/of2007-1047srp036.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":"53cd7334e4b0b29085108cae","contributors":{"authors":[{"text":"Costa, E.","contributorId":20654,"corporation":false,"usgs":true,"family":"Costa","given":"E.","email":"","affiliations":[],"preferred":false,"id":489893,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dunbar, R. B.","contributorId":92834,"corporation":false,"usgs":false,"family":"Dunbar","given":"R. B.","affiliations":[],"preferred":false,"id":489898,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kryc, K.A.","contributorId":93383,"corporation":false,"usgs":true,"family":"Kryc","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":489899,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mucciarone, D.A.","contributorId":80865,"corporation":false,"usgs":true,"family":"Mucciarone","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":489896,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brachfeld, S.","contributorId":91256,"corporation":false,"usgs":true,"family":"Brachfeld","given":"S.","email":"","affiliations":[],"preferred":false,"id":489897,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Roark, E.B.","contributorId":30076,"corporation":false,"usgs":true,"family":"Roark","given":"E.B.","email":"","affiliations":[],"preferred":false,"id":489894,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Manley, P.L.","contributorId":103477,"corporation":false,"usgs":true,"family":"Manley","given":"P.L.","email":"","affiliations":[],"preferred":false,"id":489900,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Murray, R.W.","contributorId":6196,"corporation":false,"usgs":true,"family":"Murray","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":489892,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Leventer, A.","contributorId":55587,"corporation":false,"usgs":false,"family":"Leventer","given":"A.","affiliations":[],"preferred":false,"id":489895,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70065938,"text":"ofr20071047KP11 - 2007 - Antarctica and global paleogeography: from Rodinia, rhrough Gondwanaland and Pangea, to the birth of the Southern Ocean and the opening of gateways","interactions":[],"lastModifiedDate":"2014-01-07T13:38:04","indexId":"ofr20071047KP11","displayToPublicDate":"2007-01-02T13:24:00","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-KP-11","title":"Antarctica and global paleogeography: from Rodinia, rhrough Gondwanaland and Pangea, to the birth of the Southern Ocean and the opening of gateways","docAbstract":"Neoproterozoic Rodinia reconstructions associate East Antarctica (EANT) with cratonic Western Australia. By further \nlinking EANT to both Gondwana and Pangea with relative \nplate circuits, a Synthetic Apparent Polar Wander (SAPW) \npath for EANT is calculated. This path predicts that EANT \nwas located at tropical to subtropical southerly latitudes from \nca. 1 Ga to 420 Ma. Around 400 Ma and again at 320 Ma, \nEANT underwent southward drift. Ca. 250 Ma Antarctica \nvoyaged briefly north but headed south again ca. 200 Ma. \nSince 75 Ma EANT became surrounded by spreading centers \nand has remained extremely stable. Although paleomagnetic \ndata of the blocks that embrace West Antarctica are sparse, \nwe attempt to model their complex kinematics since the \nMesozoic. Together with the SAPW path and a revised \ncircum-Antarctic seafloor spreading history we construct a \nseries of new paleogeographic maps.","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":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP11","usgsCitation":"Torsvik, T., Gaina, C., and Redfield, T., 2007, Antarctica and global paleogeography: from Rodinia, rhrough Gondwanaland and Pangea, to the birth of the Southern Ocean and the opening of gateways: U.S. Geological Survey Open-File Report 2007-1047-KP-11, 16 p., https://doi.org/10.3133/ofr20071047KP11.","productDescription":"16 p.","startPage":"125","endPage":"140","costCenters":[],"links":[{"id":280658,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP11.JPG"},{"id":280657,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp11/of2007-1047kp11.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":"53cd4d73e4b0b290850f1830","contributors":{"authors":[{"text":"Torsvik, T.H.","contributorId":59342,"corporation":false,"usgs":true,"family":"Torsvik","given":"T.H.","email":"","affiliations":[],"preferred":false,"id":487932,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gaina, C.","contributorId":71389,"corporation":false,"usgs":true,"family":"Gaina","given":"C.","email":"","affiliations":[],"preferred":false,"id":487933,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Redfield, T.F.","contributorId":102278,"corporation":false,"usgs":true,"family":"Redfield","given":"T.F.","email":"","affiliations":[],"preferred":false,"id":487934,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70094919,"text":"ofr20071047SRP069 - 2007 - Craddock Massif and Vinson Massif remeasured","interactions":[],"lastModifiedDate":"2014-02-25T11:43:52","indexId":"ofr20071047SRP069","displayToPublicDate":"2007-01-02T11:33:00","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-069","title":"Craddock Massif and Vinson Massif remeasured","docAbstract":"The highest peak in Antarctica, the Vinson Massif (78º35’S, 85º25’W), is at an elevation of 4892 m (16,046 \nft), as determined in 2004. Measurements of the elevation have fluctuated over the years, from its earliest surveyed \nelevation of 5140 m (16,859 ft), to its present height. Vinson Massif and three of its near neighbors in the Sentinel \nRange of the Ellsworth Mountains are the highest peaks in Antarctica, making them a favorite objective of \nmountaineers. Well over 1,100 people have climbed Vinson since the first ascent by a team in the 1966-67 austral \nsummer. The range is composed of Crashsite quartzite, making the Sentinel’s very resistant to erosion. Very accurate \nelevations have been achieved annually by GPS mapping done by a climbing team sponsored by the Omega \nFoundation, active in Antarctica since 1998. The Craddock Massif now includes Mt. Craddock, the ninth highest peak \nin Antarctica, at 4368 m (14,327 ft). Both are named for Campbell Craddock*, a U.S. geologist active in Antarctic \nresearch beginning in 1959-60.","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/ofr20071047SRP069","usgsCitation":"Gildea, D., and Splettstoesser, J.F., 2007, Craddock Massif and Vinson Massif remeasured: U.S. Geological Survey Open-File Report 2007-1047-SRP-069, 3 p., https://doi.org/10.3133/ofr20071047SRP069.","productDescription":"3 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282755,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp069/of2007-1047srp069.pdf"},{"id":282756,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP069.JPG"}],"otherGeospatial":"Antarctica;Craddock Massif;Vinson Massif","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -89.14,-79.26 ], [ -89.14,-77.00 ], [ -83.30,-77.00 ], [ -83.30,-79.26 ], [ -89.14,-79.26 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5369e4b0b290850f5215","contributors":{"authors":[{"text":"Gildea, Damien","contributorId":104396,"corporation":false,"usgs":true,"family":"Gildea","given":"Damien","email":"","affiliations":[],"preferred":false,"id":490952,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Splettstoesser, John F.","contributorId":55331,"corporation":false,"usgs":false,"family":"Splettstoesser","given":"John","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":490951,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70098929,"text":"ofr20071047SRP074 - 2007 - Miocene-Pliocene ice-volcano interactions at monogenetic volcanoes near Hobbs Coast, Marie Byrd Land, Antarctica","interactions":[],"lastModifiedDate":"2014-03-19T10:05:25","indexId":"ofr20071047SRP074","displayToPublicDate":"2007-01-02T09:34:00","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-074","title":"Miocene-Pliocene ice-volcano interactions at monogenetic volcanoes near Hobbs Coast, Marie Byrd Land, Antarctica","docAbstract":"Paleoenvironmental reconstructions and \n40\nAr/\n39\nAr geochronology of seven eroded monogenetic volcanoes \nnear the Hobbs Coast, Marie Byrd Land, West Antarctica provide proxy records of WAIS paleo-ice-levels in Miocene-Pliocene times. Interpretations, based on lithofacies analysis, indicate whether the volcanoes erupted below, near, or \nabove the level of the ice sheet. Our interpretations differ significantly from previous interpretations as they highlight \nthe abundant evidence for ice-volcano interactions at emergent paleoenvironments but limited evidence of higher-than-present syn-eruptive ice-levels. Evidence for subglacial volcanic paleoenvironments is limited to Kennel Peak, a ~8 Ma \nvolcano where a pillow lava sequence extending 25 m above current ice level overlies an inferred glacial till and \nunconformity. A major complication in the Hobbs Coast region is that the volcanism occurred on interfluves between \nregions of fast-flowing ice. Such a setting precludes establishing precise regional paleo-ice-levels although the presence \nor absence of ice at times of eruptions can be inferred.","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/ofr20071047SRP074","usgsCitation":"Wilch, T., and McIntosh, W.C., 2007, Miocene-Pliocene ice-volcano interactions at monogenetic volcanoes near Hobbs Coast, Marie Byrd Land, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-074, 7 p., https://doi.org/10.3133/ofr20071047SRP074.","productDescription":"7 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":284200,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP074.PNG"},{"id":284199,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp074/of2007-1047srp074.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":"53cd67c6e4b0b29085101995","contributors":{"authors":[{"text":"Wilch, T.I.","contributorId":69881,"corporation":false,"usgs":true,"family":"Wilch","given":"T.I.","email":"","affiliations":[],"preferred":false,"id":491738,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McIntosh, W. C.","contributorId":68039,"corporation":false,"usgs":true,"family":"McIntosh","given":"W.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":491737,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70094148,"text":"ofr20071047SRP045 - 2007 - Basal Adare volcanics, Robertson Bay, North Victoria Land, Antarctica: Late Miocene intraplate basalts of subaqueous origin","interactions":[],"lastModifiedDate":"2014-02-18T08:54:51","indexId":"ofr20071047SRP045","displayToPublicDate":"2007-01-01T16:12:00","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-045","title":"Basal Adare volcanics, Robertson Bay, North Victoria Land, Antarctica: Late Miocene intraplate basalts of subaqueous origin","docAbstract":"Late Cenozoic lavas and associated hyaloclastite breccias of the Adare volcanics (Hallett volcanic \nprovince) in Robertson Bay, North Victoria Land rest unconformably on Paleozoic greywackes. Abundant hyaloclastite \nbreccias are confined to a paleovalley; their primary geological features, and the stable isotope ratios of secondary \nminerals, are consistent with eruption in a subaqueous environment with calcite formation probably involving seawater. \nIn contrast, the lavas which stratigraphically overlie the hyaloclastites on Mayr Spur probably were erupted subaerially. \nK-Ar dating of eight samples from this basal sequence confirms the known older age limit (Late Miocene) of the Hallett \nvolcanic province. Geochemical data reveal an ocean island basalt-like affinity, similar to other Cenozoic igneous rocks \nof the Hallett volcanic province. If a submarine eruptive paleoenvironment is accepted then there has been net tectonic \nor isostatic post-Late Miocene uplift of a few hundred metres in the Robertson Bay-Adare Peninsula area","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/ofr20071047SRP045","usgsCitation":"Mortimer, N., Dunlap, W., Isaac, M., Sutherland, R., and Faure, K., 2007, Basal Adare volcanics, Robertson Bay, North Victoria Land, Antarctica: Late Miocene intraplate basalts of subaqueous origin: U.S. Geological Survey Open-File Report 2007-1047-SRP-045, 7 p., https://doi.org/10.3133/ofr20071047SRP045.","productDescription":"7 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282456,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP045.JPG"},{"id":282455,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp045/of2007-1047srp045.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":"53cd4ecbe4b0b290850f252b","contributors":{"authors":[{"text":"Mortimer, N.","contributorId":45907,"corporation":false,"usgs":true,"family":"Mortimer","given":"N.","email":"","affiliations":[],"preferred":false,"id":490439,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dunlap, W.J.","contributorId":44833,"corporation":false,"usgs":true,"family":"Dunlap","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":490438,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Isaac, M.J.","contributorId":55336,"corporation":false,"usgs":true,"family":"Isaac","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":490440,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sutherland, R.P.","contributorId":43272,"corporation":false,"usgs":true,"family":"Sutherland","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":490437,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Faure, K.","contributorId":24687,"corporation":false,"usgs":true,"family":"Faure","given":"K.","email":"","affiliations":[],"preferred":false,"id":490436,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70101011,"text":"ofr20071047SRP092 - 2007 - <sup>40</sup>Ar-<sup>39</sup>Ar Age Constraints on Volcanism and Tectonism in the Terror Rift of the Ross Sea, Antarctica","interactions":[],"lastModifiedDate":"2014-04-09T10:06:48","indexId":"ofr20071047SRP092","displayToPublicDate":"2007-01-01T16:10:00","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-092","title":"<sup>40</sup>Ar-<sup>39</sup>Ar Age Constraints on Volcanism and Tectonism in the Terror Rift of the Ross Sea, Antarctica","docAbstract":"Volcanic sills and dikes inferred from seismic reflection profiles and geophysical studies of the Ross Sea are \nthought to be related to the rift basins in the region, and their emplacement to be coeval with extension. However, lack \nof precise geochronology in the Terror Rift of the Ross Sea region has left these inferred relationships poorly \nconstrained and has hindered neotectonic studies, because of the large temporal gaps between seismic reflectors of \nknown ages. New 40Ar/39Ar geochronology presented here for submarine volcanic rocks provides better age constraints \nfor neotectonic interpretations within the Terror Rift. Several samples from seamounts yielded young ages between 156 \n± 21 and 122 ± 26 Ka. These ages support interpretations that extension within the Terror Rift was active at least \nthrough the Pleistocene. Three evenly spaced samples from the lowermost 100 m of Franklin Island range in age from \n3.28 ± 0.04 to 3.73 ± 0.05 Ma. These age determinations demonstrate that construction of a small volcanic edifice such \nas Franklin Island took at least several hundred thousand years, and therefore that much larger ones in the Erebus \nVolcanic Province are likely to have taken considerably longer than previously inferred. This warrants caution in \napplying a limited number of age determinations to define the absolute ages of events in the Ross Sea region","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/ofr20071047SRP092","usgsCitation":"U.S. Geological Survey, 2007, <sup>40</sup>Ar-<sup>39</sup>Ar Age Constraints on Volcanism and Tectonism in the Terror Rift of the Ross Sea, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-092, 4 p., https://doi.org/10.3133/ofr20071047SRP092.","productDescription":"4 p.","onlineOnly":"N","costCenters":[],"links":[{"id":285939,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP092.png"},{"id":285935,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp092/of2007-1047srp092.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":"53cd493ae4b0b290850ef002"}
,{"id":70093631,"text":"ofr20071047SRP041 - 2007 - History of views on the relative positions of Antarctica and South America: A 100-year tango between Patagonia and the Antarctic Peninsula","interactions":[],"lastModifiedDate":"2014-02-11T09:24:31","indexId":"ofr20071047SRP041","displayToPublicDate":"2007-01-01T16:06:00","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-041","title":"History of views on the relative positions of Antarctica and South America: A 100-year tango between Patagonia and the Antarctic Peninsula","docAbstract":"Discussion of continental drift around Antarctica began nearly 100 years ago. While the Gondwana \nconnections of Antarctica to Africa and Australia have been well defined for decades, the relative pre-drift positions of \nthe Antarctic Peninsula and Patagonia continue to be subjects of controversy. Certainly older figures, which showed a \npaleo-position of the Peninsula crossing over continental crust of the Falkland Plateau or even South Africa or \nPatagonia, are out of consideration now. But contradictory opinions remain over the relative paleo-position of the \nPeninsula as a more or less straight prolongation of the Patagonian Andes, versus a position parallel to Patagonia along \nthe Pacific coast. Geological reasons are found for both opinions, but geophysical observations on the adjacent ocean \nfloors, particularly the evolution of the Weddell Sea crust, speak for the last-mentioned reconstruction.","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/ofr20071047SRP041","usgsCitation":"Miller, H., 2007, History of views on the relative positions of Antarctica and South America: A 100-year tango between Patagonia and the Antarctic Peninsula: U.S. Geological Survey Open-File Report 2007-1047-SRP-041, 4 p., https://doi.org/10.3133/ofr20071047SRP041.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282236,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp041/of2007-1047srp041.pdf"},{"id":282252,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP041.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":"53cd60ade4b0b290850fd143","contributors":{"authors":[{"text":"Miller, H.","contributorId":57009,"corporation":false,"usgs":true,"family":"Miller","given":"H.","affiliations":[],"preferred":false,"id":490100,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70074791,"text":"ofr20071047SRP035 - 2007 - New M<sup>40</sup>Ar/<sup>39</sup>Ar and K/Ar Ages of Dikes in the South Shetland Islands (Antarctic Peninsula)","interactions":[],"lastModifiedDate":"2014-02-03T16:18:05","indexId":"ofr20071047SRP035","displayToPublicDate":"2007-01-01T16:05:00","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-035","title":"New M<sup>40</sup>Ar/<sup>39</sup>Ar and K/Ar Ages of Dikes in the South Shetland Islands (Antarctic Peninsula)","docAbstract":"Eighteen plagioclase 40Ar/39Ar and 7 whole rock K/Ar ages suggest that dikes in the South Shetland Islands\n(Antarctic Peninsula) are of Paleocene to Eocene age. The oldest dikes are exposed on Hurd Peninsula (Livingston Island)\nand do not yield 40Ar/39Ar plateaux. Our best estimates suggest dike intrusion at about the Cretaceous/Paleogene boundary.\nAn older age limit for the dikes is established by Campanian nannofossil ages from their metasedimentary host. Dike\nintrusion began earlier and lasted longer on Hurd Peninsula (Danian to Priabonian) than on King George Island (Thanetian\nto Lutetian). Arc magmatism on King George Island, possibly accompanied also by hypabyssal intrusions, began in the\nCretaceous as indicated by ages from the stratiform volcanic sequence. The dikes on King George Island were emplaced\nbeginning in the late Paleocene and ending 47–45 Ma. The youngest arc-related dikes on Hurd Peninsula were emplaced\n~37 Ma","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/ofr20071047SRP035","usgsCitation":"Kraus, S., McWilliams, M., and Pecskay, Z., 2007, New M<sup>40</sup>Ar/<sup>39</sup>Ar and K/Ar Ages of Dikes in the South Shetland Islands (Antarctic Peninsula): U.S. Geological Survey Open-File Report 2007-1047-SRP-035, 3 p., https://doi.org/10.3133/ofr20071047SRP035.","productDescription":"3 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281936,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP035.JPG"},{"id":281935,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/publication/ofr20071047SRP006"}],"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":"53cd68eae4b0b290851025c2","contributors":{"authors":[{"text":"Kraus, S.","contributorId":10329,"corporation":false,"usgs":true,"family":"Kraus","given":"S.","email":"","affiliations":[],"preferred":false,"id":489888,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McWilliams, M.","contributorId":39121,"corporation":false,"usgs":true,"family":"McWilliams","given":"M.","email":"","affiliations":[],"preferred":false,"id":489890,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pecskay, Z.","contributorId":13898,"corporation":false,"usgs":true,"family":"Pecskay","given":"Z.","email":"","affiliations":[],"preferred":false,"id":489889,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
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