{"pageNumber":"177","pageRowStart":"4400","pageSize":"25","recordCount":36989,"records":[{"id":70094187,"text":"ofr20071047SRP054 - 2007 - Modeling environmental bias and computing velocity field from data of Terra Nova Bay GPS network in Antarctica by means of a quasi-observation processing approach","interactions":[],"lastModifiedDate":"2014-02-18T13:58:14","indexId":"ofr20071047SRP054","displayToPublicDate":"2007-01-01T13:38:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-054","title":"Modeling environmental bias and computing velocity field from data of Terra Nova Bay GPS network in Antarctica by means of a quasi-observation processing approach","docAbstract":"A semi-permanent GPS network of about 30 vertices has been installed at Terra Nova Bay (TNB) near \nRoss Sea in Antarctica. A permanent GPS station TNB1 based on an Ashtech Z-XII dual frequency P-code GPS \nreceiver with ASH700936D_M Choke Ring Antenna has been mounted on a reinforced concrete pillar built on \nbedrock since October 1998 and has recorded continuously up to the present. The semi-permanent network has been \nroutinely surveyed every summer using high quality dual frequency GPS receivers with 24 hour sessions at 15 sec \nrate; data, metadata and solutions will be available to the scientific community at (http://www.geodant.unimore.it). \nWe present the results of a distributed session approach applied to processing GPS data of the TNB GPS network, and \nbased on Gamit/Globk 10.2-3 GPS analysis software. The results are in good agreement with other authors' \ncomputations and with many of the theoretical models.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP054","usgsCitation":"Casula, G., Dubbini, M., and Galeandro, A., 2007, Modeling environmental bias and computing velocity field from data of Terra Nova Bay GPS network in Antarctica by means of a quasi-observation processing approach: U.S. Geological Survey Open-File Report 2007-1047-SRP-054, 4 p., https://doi.org/10.3133/ofr20071047SRP054.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282489,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP054.JPG"},{"id":282488,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp054/of2007-1047srp054.pdf"}],"otherGeospatial":"Antarctica;Terra Nova Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 160.76,-75.01 ], [ 160.76,-69.98 ], [ 171.32,-69.98 ], [ 171.32,-75.01 ], [ 160.76,-75.01 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd67dde4b0b29085101ab6","contributors":{"authors":[{"text":"Casula, Giuseppe","contributorId":27357,"corporation":false,"usgs":true,"family":"Casula","given":"Giuseppe","email":"","affiliations":[],"preferred":false,"id":490543,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dubbini, Marco","contributorId":93819,"corporation":false,"usgs":true,"family":"Dubbini","given":"Marco","email":"","affiliations":[],"preferred":false,"id":490544,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Galeandro, Angelo","contributorId":96586,"corporation":false,"usgs":true,"family":"Galeandro","given":"Angelo","email":"","affiliations":[],"preferred":false,"id":490545,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70103167,"text":"ofr20071047SRP101 - 2007 - Thermochronologic constraints on the tectonic evolution of the western Antarctic Peninsula in late Mesozoic and Cenozoic times","interactions":[],"lastModifiedDate":"2014-04-29T13:54:18","indexId":"ofr20071047SRP101","displayToPublicDate":"2007-01-01T13:38:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-101","title":"Thermochronologic constraints on the tectonic evolution of the western Antarctic Peninsula in late Mesozoic and Cenozoic times","docAbstract":"West of the Antarctic Peninsula, oceanic lithosphere of the Phoenix plate has been subducted below the \nAntarctic plate. Subduction has ceased successively from south to north over the last 65 Myr. An influence of this \nevolution on the segmentation of the crust in the Antarctic plate is disputed. Opposing scenarios consider effects of \nridge crest – trench interactions with the subduction zone or differences in slip along a basal detachment in the \noverriding plate. Fission track (FT) analyses on apatites and zircons may detect thermochronologic patterns to test these \nhypotheses. While existing data concentrate on accretionary processes in Palmer Land, new data extend information to \nthe northern part of the Antarctic Peninsula. Zircons from different geological units over wide areas of the Antarctic \nPeninsula yield fission track ages between 90 and 80 Ma, indicating a uniform regional cooling episode. Apatite FT \nages obtained so far show considerable regional variability","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP101","usgsCitation":"Brix, M., Faundez, V., Herve, F., Solari, M., Fernandez, J., Carter, A., and Stockhert, B., 2007, Thermochronologic constraints on the tectonic evolution of the western Antarctic Peninsula in late Mesozoic and Cenozoic times: U.S. Geological Survey Open-File Report 2007-1047-SRP-101, 5 p., https://doi.org/10.3133/ofr20071047SRP101.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286775,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP101.JPG"},{"id":286774,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp101/of2007-1047srp101.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5360c9fde4b082a3ecf53e3d","contributors":{"authors":[{"text":"Brix, M.R.","contributorId":100295,"corporation":false,"usgs":true,"family":"Brix","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":493190,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Faundez, V.","contributorId":44464,"corporation":false,"usgs":true,"family":"Faundez","given":"V.","email":"","affiliations":[],"preferred":false,"id":493186,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Herve, F.","contributorId":26975,"corporation":false,"usgs":true,"family":"Herve","given":"F.","email":"","affiliations":[],"preferred":false,"id":493185,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Solari, M.","contributorId":12374,"corporation":false,"usgs":true,"family":"Solari","given":"M.","email":"","affiliations":[],"preferred":false,"id":493184,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fernandez, J.","contributorId":46229,"corporation":false,"usgs":true,"family":"Fernandez","given":"J.","affiliations":[],"preferred":false,"id":493187,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Carter, A.","contributorId":62438,"corporation":false,"usgs":true,"family":"Carter","given":"A.","email":"","affiliations":[],"preferred":false,"id":493188,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Stockhert, B.","contributorId":69064,"corporation":false,"usgs":true,"family":"Stockhert","given":"B.","email":"","affiliations":[],"preferred":false,"id":493189,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70103490,"text":"ofr20071047SRP109 - 2007 - Crustal architecture of the oblique-slip conjugate margins of George V Land  and southeast Australia","interactions":[],"lastModifiedDate":"2014-05-05T13:56:27","indexId":"ofr20071047SRP109","displayToPublicDate":"2007-01-01T13:37:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-109","title":"Crustal architecture of the oblique-slip conjugate margins of George V Land  and southeast Australia","docAbstract":"A conceptual, lithospheric-scale cross-section of the conjugate, oblique-slip margins of George V Land, East \nAntarctica, and southeast Australia (Otway Basin) has been constructed based on the integration of seismic and sample \ndata. This cross-section is characterised by asymmetry in width and thickness, and depth-dependent crustal extension at \nbreakup in the latest Maastrichtian. The broad Antarctic margin (~360 km apparent rift width) developed on thick \ncrust (~42 km) of the Antarctic craton, whereas the narrow Otway margin (~220 km) developed on the thinner crust \n(~31 km) of the Ross–Delamerian Orogen. The shallow basement (velocities ~5.5 km.s-1) and the deep continental \ncrust (velocities >6.4 km.s-1) appear to be largely absent across the central rift, while the mid-crustal, probably granitic \nlayer (velocities ~6 km.s-1) is preserved. Comparison with published numerical models suggests that the shallow \nbasement and deep crust may have been removed by simple shear, whereas the mid-crust has been ductilely deformed.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP109","usgsCitation":"Stagg, H., and Reading, A., 2007, Crustal architecture of the oblique-slip conjugate margins of George V Land  and southeast Australia: U.S. Geological Survey Open-File Report 2007-1047-SRP-109, 6 p., https://doi.org/10.3133/ofr20071047SRP109.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286882,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp109/of2007-1047srp109.pdf"},{"id":286883,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP109.JPG"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5368b2ece4b059f7e828832b","contributors":{"authors":[{"text":"Stagg, H.M.J.","contributorId":7843,"corporation":false,"usgs":true,"family":"Stagg","given":"H.M.J.","email":"","affiliations":[],"preferred":false,"id":493372,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reading, A.M.","contributorId":55342,"corporation":false,"usgs":true,"family":"Reading","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":493373,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70093760,"text":"ofr20071047SRP044 - 2007 - Thermochronologic constraints on Jurassic rift flank denudation in the Thiel Mountains, Antarctica","interactions":[],"lastModifiedDate":"2014-02-17T16:06:45","indexId":"ofr20071047SRP044","displayToPublicDate":"2007-01-01T13:35:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-044","title":"Thermochronologic constraints on Jurassic rift flank denudation in the Thiel Mountains, Antarctica","docAbstract":"The Thiel Mountains are part of the Transantarctic Mountains (TAM) and occupy a strategic position close \nto the East-West Antarctic boundary. They occur in a region of relatively subdued topography distal from high \ntopography and high relief of most of the TAM adjacent to the West Antarctic rift system. Low-temperature \nthermochronology on samples collected from the Reed Ridge granite on the north flank of the Thiel Mountains \nconstrain the thermal and hence tectonic history. Apatite fission track data plus thermal models indicate cooling from \nca. 165-150 Ma. In conjunction with <sup>40</sup>Ar/<sup>39</sup>Ar K-feldspar data, the results indicate cooling was due to relatively slow \nerosional denudation, and not thermal relaxation following Jurassic tholeiitic magmatism. Denudation was most likely \nassociated with the formation of the Jurassic rift system across Antarctica that marked the initial breakup of Gondwana. \nThis is the oldest episode of denudation associated with formation of the present day TAM","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP044","usgsCitation":"Fitzgerald, P., and Baldwin, S., 2007, Thermochronologic constraints on Jurassic rift flank denudation in the Thiel Mountains, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-044, 4 p., https://doi.org/10.3133/ofr20071047SRP044.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282453,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP044.png"},{"id":282452,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp044/of2007-1047srp044.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd78e1e4b0b2908510c722","contributors":{"authors":[{"text":"Fitzgerald, P.G.","contributorId":18579,"corporation":false,"usgs":true,"family":"Fitzgerald","given":"P.G.","email":"","affiliations":[],"preferred":false,"id":490195,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baldwin, S.L.","contributorId":16752,"corporation":false,"usgs":true,"family":"Baldwin","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":490194,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70074381,"text":"ofr20071047SRP024 - 2007 - Abrupt turnover in calcareous-nannoplankton assemblages across the  Paleocene/Eocene Thermal Maximum: implications for surface-water  oligotrophy over the Kerguelen Plateau, Southern Indian Ocean","interactions":[],"lastModifiedDate":"2014-02-03T12:46:55","indexId":"ofr20071047SRP024","displayToPublicDate":"2007-01-01T13:34:00","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-024","title":"Abrupt turnover in calcareous-nannoplankton assemblages across the  Paleocene/Eocene Thermal Maximum: implications for surface-water  oligotrophy over the Kerguelen Plateau, Southern Indian Ocean","docAbstract":"Ocean Drilling Program (ODP) Core Section 183-1135A-25R-4 from the Kerguelen Plateau in the Indian \nOcean sector of the Southern Ocean represents only the second complete, expanded sequence through the \nPaleocene/Eocene Thermal Maximum (PETM; ~55 Ma) recovered from Antarctic waters. Calcareous nannoplankton at \nthis site underwent an abrupt, fundamental turnover across the PETM as defined by a carbon isotope excursion. \nAlthough Chiasmolithus, Discoaster, and Fasciculithus exponentially increase in abundance at the onset, the former \nabruptly drops but then rapidly recovers, whereas the latter two taxa show opposite trends due to surface-water \noligotrophy. These observations confirm previous results from ODP Site 690 on Maud Rise. The elevated pCO<sub>2</sub> that \naccompanied the PETM caused a shoaling of the lysocline and carbonate compensation depth, leading to intensive \ndissolution of susceptible holococcoliths and poor preservation of the assemblages. Similarities and contrasts between \nthe results of this study and previous work from open-ocean sites and shelf margins further demonstrate that the \nresponse to the PETM was consistent in open-ocean environments, but could be localized on continental shelves where \nnutrient regimes depend on the local geologic setting and oceanographic conditions.","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/ofr20071047SRP024","usgsCitation":"Jiang, S., and Wise, S.W., 2007, Abrupt turnover in calcareous-nannoplankton assemblages across the  Paleocene/Eocene Thermal Maximum: implications for surface-water  oligotrophy over the Kerguelen Plateau, Southern Indian Ocean: U.S. Geological Survey Open-File Report 2007-1047-SRP-024, 5 p., https://doi.org/10.3133/ofr20071047SRP024.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281663,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp024/of2007-1047srp024.pdf"},{"id":281664,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP024.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":"53cd4ae5e4b0b290850f00c3","contributors":{"authors":[{"text":"Jiang, Shijun","contributorId":86684,"corporation":false,"usgs":true,"family":"Jiang","given":"Shijun","email":"","affiliations":[],"preferred":false,"id":489551,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wise, Sherwood W. Jr.","contributorId":36052,"corporation":false,"usgs":true,"family":"Wise","given":"Sherwood","suffix":"Jr.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":489550,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70074750,"text":"ofr20071047SRP027 - 2007 - Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island,  Antarctic Peninsula; a possible result from Holocene climate fluctuations","interactions":[],"lastModifiedDate":"2014-02-03T13:40:31","indexId":"ofr20071047SRP027","displayToPublicDate":"2007-01-01T13:30:00","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-027","title":"Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island,  Antarctic Peninsula; a possible result from Holocene climate fluctuations","docAbstract":"We present a granulometric study of emerged pebble beach ridges in the Fort Williams Point, Greenwich \nIsland, Antarctic Peninsula. We studied 8 beach ridges from the shore up to 13.5 m above current sea level. The beach \nridges are made of volcanic material from the surrounding relief, but also include glacially transported gneiss and \ngranodiorite pebble and cobble. Based on granulometric distribution analysis of 2100 samples from 39 locations we \nidentified evidence of 4 sequences of 1 to 3 ridges. Most of the material seems to be reworked from a till. Pavement \nformation by iceberg between the sequences of beach ridges suggests periods of lower temperature. The interpretation \nsuggests that sequences of beach ridge construction formed during warmer periods of the late Holocene. This occurs in \nthe framework of an isostatic postglacial uplift allowing the progressive mobilization of periglaciar material.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP027","usgsCitation":"Santana, E., and Dumont, J., 2007, Granulometry of pebble beach ridges in Fort Williams Point, Greenwich Island,  Antarctic Peninsula; a possible result from Holocene climate fluctuations: U.S. Geological Survey Open-File Report 2007-1047-SRP-027, 4 p., https://doi.org/10.3133/ofr20071047SRP027.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281897,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp027/of2007-1047srp027.pdf"},{"id":281900,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP027.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":"53cd5f0de4b0b290850fc160","contributors":{"authors":[{"text":"Santana, E.","contributorId":103568,"corporation":false,"usgs":true,"family":"Santana","given":"E.","email":"","affiliations":[],"preferred":false,"id":489817,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dumont, J.F.","contributorId":92574,"corporation":false,"usgs":true,"family":"Dumont","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":489816,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70103166,"text":"ofr20071047SRP100 - 2007 - Major magmatic events in Mt Meredith, Prince Charles Mountains: First evidence for early Palaeozoic syntectonic granites","interactions":[],"lastModifiedDate":"2014-04-29T13:35:27","indexId":"ofr20071047SRP100","displayToPublicDate":"2007-01-01T13:18:00","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-100","title":"Major magmatic events in Mt Meredith, Prince Charles Mountains: First evidence for early Palaeozoic syntectonic granites","docAbstract":"Precambrian rocks at Mt Meredith underwent granulite-facies metamorphism M1. Zircon isotope dating for \ntwo orthogneisses revealed the following age signatures: 1294±3 and 957±4Ma; 1105±5 and 887±2Ma. The oldest ages \ncould reflect the time of orthogneiss protolith crystallization and the latest age determinations date Grenvillian \nmetamorphism. The metamorphic rocks were intruded by two-mica and garnet-biotite granites. The granites and host \nrocks underwent amphibolite-facies metamorphism M2. Zircon isotope analysis of the two-mica granites showed age \nestimation within 550-510Ma and zircon dating of the garnet-biotite granites revealed the ages of 1107±5, 953±8, and \n551±4Ma. As Pan-African age signatures were obtained from only the granite samples, it is possible to suggest that the \ngranites were formed at the time of 510-550Ma and the zircons with greater age values were captured by granites from \nthe host rocks.","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/ofr20071047SRP100","usgsCitation":"Gongurov, N., Laiba, A., and Beliatsky, B., 2007, Major magmatic events in Mt Meredith, Prince Charles Mountains: First evidence for early Palaeozoic syntectonic granites: U.S. Geological Survey Open-File Report 2007-1047-SRP-100, 4 p., https://doi.org/10.3133/ofr20071047SRP100.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286771,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp100/of2007-1047srp100.pdf"},{"id":286772,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP100.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":"5360c9efe4b082a3ecf53e13","contributors":{"authors":[{"text":"Gongurov, N.A.","contributorId":41342,"corporation":false,"usgs":true,"family":"Gongurov","given":"N.A.","email":"","affiliations":[],"preferred":false,"id":493181,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Laiba, A.A.","contributorId":98634,"corporation":false,"usgs":true,"family":"Laiba","given":"A.A.","email":"","affiliations":[],"preferred":false,"id":493183,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Beliatsky, B.V.","contributorId":80587,"corporation":false,"usgs":true,"family":"Beliatsky","given":"B.V.","email":"","affiliations":[],"preferred":false,"id":493182,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70120916,"text":"ofr20071397 - 2007 - Cartographic production for the Florida Shelf Habitat (FLaSH) map study: generation of surface grids, contours, and KMZ files","interactions":[],"lastModifiedDate":"2014-08-18T13:20:41","indexId":"ofr20071397","displayToPublicDate":"2007-01-01T13:16:00","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":"2007-1397","title":"Cartographic production for the Florida Shelf Habitat (FLaSH) map study: generation of surface grids, contours, and KMZ files","docAbstract":"<p>The Florida shelf represents a finite source of economic resources, including commercial and recreational fisheries, tourism, recreation, sand and gravel resources, phosphate, and freshwater reserves. Yet the basic information needed to locate resources, or to interpret and utilize existing data, comes from many sources, dates, and formats. A multi-agency effort is underway to coordinate and prioritize the compilation of suitable datasets for an integrated information system of Florida’s coastal and ocean resources. This report and the associated data files represent part of the effort to make data accessible and useable with computer-mapping systems, web-based technologies, and user-friendly visualization tools. Among the datasets compiled and developed are seafloor imagery, marine sediment data, and existing bathymetric data. A U.S. Geological Survey-sponsored workshop in January 2007 resulted in the establishment of mapping priorities for the state. Bathymetry was identified as a common priority among agencies and researchers. State-of-the-art computer-mapping techniques and data-processing tools were used to develop shelf-wide raster and vector data layers. Florida Shelf Habitat (FLaSH) Mapping Project (<a href=\"http://coastal.er.usgs.gov/flash\">http://coastal.er.usgs.gov/flash</a>) endeavors to locate available data, identify data gaps, synthesize existing information, and expand our understanding of geologic processes in our dynamic coastal and marine systems.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071397","usgsCitation":"Robbins, L.L., Hansen, M., Raabe, E., Knorr, P.O., and Browne, J., 2007, Cartographic production for the Florida Shelf Habitat (FLaSH) map study: generation of surface grids, contours, and KMZ files: U.S. Geological Survey Open-File Report 2007-1397, HTML Document, https://doi.org/10.3133/ofr20071397.","productDescription":"HTML Document","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292444,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":292443,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1397/"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Shelf","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -87.0,25.0 ], [ -87.0,30.0 ], [ -80.0,30.0 ], [ -80.0,25.0 ], [ -87.0,25.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f25fc4e4b03334187188fa","contributors":{"authors":[{"text":"Robbins, Lisa L. 0000-0003-3681-1094 lrobbins@usgs.gov","orcid":"https://orcid.org/0000-0003-3681-1094","contributorId":422,"corporation":false,"usgs":true,"family":"Robbins","given":"Lisa","email":"lrobbins@usgs.gov","middleInitial":"L.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498611,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hansen, Mark","contributorId":81893,"corporation":false,"usgs":true,"family":"Hansen","given":"Mark","affiliations":[],"preferred":false,"id":498613,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Raabe, Ellen","contributorId":98402,"corporation":false,"usgs":true,"family":"Raabe","given":"Ellen","affiliations":[],"preferred":false,"id":498614,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Knorr, Paul O. pknorr@usgs.gov","contributorId":3691,"corporation":false,"usgs":true,"family":"Knorr","given":"Paul","email":"pknorr@usgs.gov","middleInitial":"O.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498612,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Browne, Joseph","contributorId":102398,"corporation":false,"usgs":true,"family":"Browne","given":"Joseph","email":"","affiliations":[],"preferred":false,"id":498615,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70103487,"text":"ofr20071047SRP108 - 2007 - Structure of the central Terror Rift, western Ross Sea, Antarctica","interactions":[],"lastModifiedDate":"2014-05-05T13:32:52","indexId":"ofr20071047SRP108","displayToPublicDate":"2007-01-01T13:15:00","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-108","title":"Structure of the central Terror Rift, western Ross Sea, Antarctica","docAbstract":"The Terror Rift is a zone of post-middle Miocene faulting and volcanism along the western margin of the \nWest Antarctic Rift System. A new seismic data set from NSF geophysical cruise NBP04-01, integrated with the \nprevious dataset to provide higher spatial resolution, has been interpreted in this study in order to improve \nunderstanding of the architecture and history of the Terror Rift. The Terror Rift contains two components, a \nstructurally-controlled rollover anticlinal arch intruded by younger volcanic bodies and an associated synclinal basin. \nOffsets and trend changes in fault patterns have been identified, coincident with shifts in the location of depocenters that \ndefine rift sub-basins, indicating that the Terror Rift is segmented by transverse structures. Multiple phases of faulting \nall post-date 17 Ma, including faults cutting the seafloor surface, indicating Neogene rifting and possible modern \nactivity.","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/ofr20071047SRP108","usgsCitation":"Hall, J., Wilson, T., and Henrys, S., 2007, Structure of the central Terror Rift, western Ross Sea, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-108, 5 p., https://doi.org/10.3133/ofr20071047SRP108.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286881,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP108.JPG"},{"id":286880,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp108/of2007-1047srp108.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":"5368b2fee4b059f7e8288385","contributors":{"authors":[{"text":"Hall, Jerome","contributorId":68656,"corporation":false,"usgs":true,"family":"Hall","given":"Jerome","email":"","affiliations":[],"preferred":false,"id":493363,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, Terry","contributorId":33618,"corporation":false,"usgs":true,"family":"Wilson","given":"Terry","affiliations":[],"preferred":false,"id":493362,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Henrys, Stuart","contributorId":21464,"corporation":false,"usgs":true,"family":"Henrys","given":"Stuart","affiliations":[],"preferred":false,"id":493361,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70100993,"text":"ofr20071047SRP090 - 2007 - Seismic facies and stratigraphy of the Cenozoic succession in McMurdo Sound, Antarctica: Implications for tectonic, climatic and glacial history","interactions":[],"lastModifiedDate":"2014-04-08T15:58:42","indexId":"ofr20071047SRP090","displayToPublicDate":"2007-01-01T13:08:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-090","title":"Seismic facies and stratigraphy of the Cenozoic succession in McMurdo Sound, Antarctica: Implications for tectonic, climatic and glacial history","docAbstract":"A new stratigraphic model is presented for the evolution of the Cenozoic Victoria Land Basin of the West \nAntarctic Rift, based on integration of seismic reflection and drilling data. The Early Rift phase (?latest Eocene to Early \nOligocene) comprises wedges of strata confined by early extensional faults, and which contain seismic facies consistent \nwith drainage via coarse-grained fans and deltas into discrete, actively subsiding grabens and half-grabens. The Main \nRift phase (Early Oligocene to Early Miocene) comprises a lens of strata that thickens symmetrically from the basin \nmargins into a central depocenter, and in which stratal events pass continuously over the top of the Early Rift \nextensional topography. Internal seismic facies and lithofacies indicate a more organized, cyclical shallow marine \nsuccession, influenced increasingly upward by cycles of glacial advance and retreat into the basin. The Passive Thermal \nSubsidence phase (Early Miocene to ?) comprises an evenly distributed sheet of strata that does not thicken appreciably \ninto the depocentre, with more evidence for clinoform sets and large channels. These patterns are interpreted to record \naccumulation under similar environmental conditions but in a regime of slower subsidence. The Renewed Rifting phase \n(? to Recent, largely unsampled by coring thus far) has been further divided into 1, a lower interval, in which the section \nthickens passively towards a central depocentre, and 2. an upper interval, in which more dramatic thickening patterns \nare complicated by magmatic activity. The youngest part of the stratigraphy was accumulated under the influence of \nflexural loading imposed by the construction of large volcanic edifices, and involved minimal sediment supply from the \nwestern basin margin, suggesting a change in environmental (glacial) conditions at possibly c. 2 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/ofr20071047SRP090","usgsCitation":"Fielding, C., Whittaker, J., Henrys, S., Wilson, T.J., and Nash, T., 2007, Seismic facies and stratigraphy of the Cenozoic succession in McMurdo Sound, Antarctica: Implications for tectonic, climatic and glacial history: U.S. Geological Survey Open-File Report 2007-1047-SRP-090, 4 p., https://doi.org/10.3133/ofr20071047SRP090.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":285904,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.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":"53559560e4b0120853e8c1d9","contributors":{"authors":[{"text":"Fielding, C.R.","contributorId":25864,"corporation":false,"usgs":true,"family":"Fielding","given":"C.R.","email":"","affiliations":[],"preferred":false,"id":492495,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Whittaker, J.","contributorId":88650,"corporation":false,"usgs":true,"family":"Whittaker","given":"J.","email":"","affiliations":[],"preferred":false,"id":492499,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Henrys, S.A.","contributorId":56097,"corporation":false,"usgs":true,"family":"Henrys","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":492497,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wilson, T. J.","contributorId":31942,"corporation":false,"usgs":false,"family":"Wilson","given":"T.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":492496,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nash, T.R.","contributorId":63721,"corporation":false,"usgs":true,"family":"Nash","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":492498,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70074741,"text":"ofr20071047SRP025 - 2007 - Basement and crustal structure of the Davis Sea region (East Antarctica): implications for tectonic setting and continent to oceanic boundary definition","interactions":[],"lastModifiedDate":"2014-02-03T13:14:29","indexId":"ofr20071047SRP025","displayToPublicDate":"2007-01-01T13:01:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-025","title":"Basement and crustal structure of the Davis Sea region (East Antarctica): implications for tectonic setting and continent to oceanic boundary definition","docAbstract":"This study is based on about 8400 km of MCS, magnetic and gravity data as well as 20 sonobuoys collected \nby the Russian Antarctic Expedition during 2003 and 2004 in the Davis Sea and adjacent areas between 80°E and \n102°E. Major tectonic provinces and features are identified and mapped in the study region including: 1) A marginal rift \nwith a the extended continental crust ranging 130 to more than 200 km in width; 2) The marginal volcanic plateau of the \nBruce Bank consisting of the Early Cretaceous igneous rocks; 3) The Early Cretaceous and Late Cretaceous−Paleogene \noceanic basins; and 4) The Early Cretaceous igneous province of the Kerguelen Plateau. Four major horizons identified \nin the sedimentary cover of the Davis Sea region are attributed to main tectonic events and/or paleoenvironmental \nchanges.","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/ofr20071047SRP025","usgsCitation":"Guseva, Y., Leitchenkov, G., Gandyukhin, V., and Ivanov, S., 2007, Basement and crustal structure of the Davis Sea region (East Antarctica): implications for tectonic setting and continent to oceanic boundary definition: U.S. Geological Survey Open-File Report 2007-1047-SRP-025, 4 p., https://doi.org/10.3133/ofr20071047SRP025.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281892,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP025.JPG"},{"id":281890,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp025/of2007-1047srp025.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":"53cd4ed6e4b0b290850f25a6","contributors":{"authors":[{"text":"Guseva, Y.B.","contributorId":103808,"corporation":false,"usgs":true,"family":"Guseva","given":"Y.B.","email":"","affiliations":[],"preferred":false,"id":489776,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leitchenkov, G.L.","contributorId":70126,"corporation":false,"usgs":true,"family":"Leitchenkov","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":489775,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gandyukhin, V.V.","contributorId":35081,"corporation":false,"usgs":true,"family":"Gandyukhin","given":"V.V.","email":"","affiliations":[],"preferred":false,"id":489774,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ivanov, S.V.","contributorId":23435,"corporation":false,"usgs":true,"family":"Ivanov","given":"S.V.","email":"","affiliations":[],"preferred":false,"id":489773,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70094181,"text":"ofr20071047SRP053 - 2007 - Microstructural study of natural fractures in Cape Roberts Project 3 core, Western Ross Sea, Antarctica","interactions":[],"lastModifiedDate":"2014-02-18T13:24:54","indexId":"ofr20071047SRP053","displayToPublicDate":"2007-01-01T12:59:00","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-053","title":"Microstructural study of natural fractures in Cape Roberts Project 3 core, Western Ross Sea, Antarctica","docAbstract":"Microstructures in natural fractures in core recovered offshore from Cape Roberts, Ross Sea, Antarctica, \nprovide new constraints on the relative timing of faulting and sedimentation in the Victoria Land Basin along the \nTransantarctic Mountain rift flank. This study characterizes the textures, fabrics and grain-scale structures from thin \nsection analysis of samples of microfaults, veins, and clastic dikes. Microfaults are abundant and display two different \ntypes of textures, interpreted to record two different deformation modes: pre-lithification shearing and brittle faulting of \ncohesive sediment. Both clastic dikes and calcite veins commonly follow fault planes, indicating that injections of \nliquefied sediment and circulating fluids used pre-existing faults as conduits. The close association of clastic injections, \ndiagenetic mineralization, and faulting indicates that faulting was synchronous with deposition in the rift basin","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/ofr20071047SRP053","usgsCitation":"Millan, C., Wilson, T., and Paulsen, T., 2007, Microstructural study of natural fractures in Cape Roberts Project 3 core, Western Ross Sea, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-053, 4 p., https://doi.org/10.3133/ofr20071047SRP053.","productDescription":"4 p.","onlineOnly":"N","costCenters":[],"links":[{"id":282487,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP053.JPG"},{"id":282486,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp053/of2007-1047srp053.pdf"}],"otherGeospatial":"Antarctica;Ross Sea","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -165.07,-79.3 ], [ -165.07,-76.9 ], [ -157.42,-76.9 ], [ -157.42,-79.3 ], [ -165.07,-79.3 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd670fe4b0b29085101220","contributors":{"authors":[{"text":"Millan, C.","contributorId":94123,"corporation":false,"usgs":true,"family":"Millan","given":"C.","email":"","affiliations":[],"preferred":false,"id":490542,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, T.","contributorId":49581,"corporation":false,"usgs":true,"family":"Wilson","given":"T.","affiliations":[],"preferred":false,"id":490540,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Paulsen, T.","contributorId":78167,"corporation":false,"usgs":true,"family":"Paulsen","given":"T.","email":"","affiliations":[],"preferred":false,"id":490541,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70094739,"text":"ofr20071047SRP062 - 2007 - Metamorphic conditions during formation of a metapelitic sillimanite-garnet  gneiss from Clemence Massif, Prince Charles Mountains, East Antarctica","interactions":[],"lastModifiedDate":"2014-02-24T13:57:27","indexId":"ofr20071047SRP062","displayToPublicDate":"2007-01-01T12:55:00","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-062","title":"Metamorphic conditions during formation of a metapelitic sillimanite-garnet  gneiss from Clemence Massif, Prince Charles Mountains, East Antarctica","docAbstract":"The pressure (P) and temperature (T) conditions during metamorphism of a metapelitic sillimanite-garnet \ngneiss from Clemence Massif, Antarctic Prince Charles Mountains, are estimated using mineral abundance information \nand petrogenetic P–T pseudosections computed in the chemical system MnO–N<sub>2</sub>O–CaO–K<sub>2</sub>O–FeO–MgO–Al<sub>2</sub>O<sub>3</sub>–\nSiO<sub>2</sub>–H<sub>2</sub>O–TiO<sub>2</sub>–Fe<sub>2</sub>O<sub>3</sub> (MnNCKFMASHTO). Calculated mineral equilibria for the appropriate bulk composition predict that the observed assemblage, of K-feldspar–garnet–quartz–sillimanite–biotite–ilmenite–rutile, stabilised at \napproximately 8–9 kbar and 760–790ºC. Reaction microstructures are rare, but the preservation of relic spinel \ninclusions in garnet indicates an earlier low-P, high-T component and possible anticlockwise path.","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/ofr20071047SRP062","usgsCitation":"Corvino, A., Boger, S., and Wilson, C., 2007, Metamorphic conditions during formation of a metapelitic sillimanite-garnet  gneiss from Clemence Massif, Prince Charles Mountains, East Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-062, 9 p., https://doi.org/10.3133/ofr20071047SRP062.","productDescription":"9 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282697,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP062.png"},{"id":282696,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp062/of2007-1047srp062.pdf"}],"otherGeospatial":"Antarctica;Prince Charles Mountains","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 63.18,-73.21 ], [ 63.18,-70.34 ], [ 68.22,-70.34 ], [ 68.22,-73.21 ], [ 63.18,-73.21 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd66c3e4b0b29085100f6e","contributors":{"authors":[{"text":"Corvino, A.F.","contributorId":24682,"corporation":false,"usgs":true,"family":"Corvino","given":"A.F.","email":"","affiliations":[],"preferred":false,"id":490846,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boger, S.D.","contributorId":53694,"corporation":false,"usgs":true,"family":"Boger","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":490847,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilson, C.J.L.","contributorId":83439,"corporation":false,"usgs":true,"family":"Wilson","given":"C.J.L.","email":"","affiliations":[],"preferred":false,"id":490848,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70094921,"text":"ofr20071047SRP071 - 2007 - The contribution of geomagnetic observatories and magnetic models to the study of secular variation and jerks in Antarctica","interactions":[],"lastModifiedDate":"2014-02-25T12:55:27","indexId":"ofr20071047SRP071","displayToPublicDate":"2007-01-01T12:46:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-071","title":"The contribution of geomagnetic observatories and magnetic models to the study of secular variation and jerks in Antarctica","docAbstract":"Some of the most interesting features of the geomagnetic field and its time variations are displayed in polar\nareas. Observatory monthly means usually provide an excellent opportunity to study the temporal changes of the\nmagnetic field at a given location. Unfortunately, on the Antarctic continent the distribution of the permanent ground-\nbased observatories does not permit a uniform coverage of the examined area. Furthermore, the magnetic records are\ncharacterized by intense external disturbances and noise that make the analysis of the magnetic field difficult. To improve our knowledge of the secular variation and detect the presence of secular variation impulses (geomagnetic\njerks) in Antarctica, we use both observatory data and the CM4 quiet time magnetic field model. In particular CM4\nimproves our knowledge of geomagnetic jerks over Antarctica through the study of the sign changes of the secular\nacceleration 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":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP071","usgsCitation":"Meloni, A., Cafarella, L., Michelis, P.D., and Tozzi, R., 2007, The contribution of geomagnetic observatories and magnetic models to the study of secular variation and jerks in Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-071, 5 p., https://doi.org/10.3133/ofr20071047SRP071.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282767,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP071.JPG"},{"id":282766,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp071/of2007-1047srp071.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":"53cd7787e4b0b2908510b98f","contributors":{"authors":[{"text":"Meloni, A.","contributorId":12778,"corporation":false,"usgs":true,"family":"Meloni","given":"A.","email":"","affiliations":[],"preferred":false,"id":490961,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cafarella, L.","contributorId":31673,"corporation":false,"usgs":true,"family":"Cafarella","given":"L.","email":"","affiliations":[],"preferred":false,"id":490963,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Michelis, P. De","contributorId":57368,"corporation":false,"usgs":true,"family":"Michelis","given":"P.","email":"","middleInitial":"De","affiliations":[],"preferred":false,"id":490964,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tozzi, R.","contributorId":13539,"corporation":false,"usgs":true,"family":"Tozzi","given":"R.","email":"","affiliations":[],"preferred":false,"id":490962,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70065877,"text":"ofr20071047KP09 - 2007 - Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension","interactions":[],"lastModifiedDate":"2014-01-07T13:06:57","indexId":"ofr20071047KP09","displayToPublicDate":"2007-01-01T12:39:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-KP-09","title":"Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension","docAbstract":"The West Antarctic rift system (WARS) is the product of \nmultiple stages of intracontinental deformation from Jurassic to Present. The Cretaceous rifting phase accomplished \n>100 percent extension across the Ross Sea and central West \nAntarctica, and is widely perceived as a product of pure shear \nextension orthogonal to the Transantarctic Mountains that led \nto breakup and opening of the Southern Ocean between West \nAntarctica and New Zealand. New structural, petrological, \nand geochronological data from Marie Byrd Land reveal \naspects of the kinematics, thermal history, and chronology of \nthe Cretaceous intracontinental extension phase that cannot \nbe readily explained by a single progressive event. Elevated \ntemperatures in \"Lachlan-type\" crust caused extensive \ncrustal melting and mid-crustal flow within a dextral transcurrent strain environment, leading to rapid extension and \nlocally to exhumation and rapid cooling of a migmatite dome \nand detachment footwall structures. Peak metamorphism and \nonset of crustal flow that brought about WARS extension \nbetween 105 Ma and 90 Ma is kinematically, temporally, \nand spatially linked to the active convergent margin system \nof East Gondwana. West Antarctica-New Zealand breakup \nis distinguished as a separate event at 83-70 Ma, from the \nstandpoint of kinematics and thermal evolution","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/ofr20071047KP09","usgsCitation":"Siddoway, C., 2007, Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension: U.S. Geological Survey Open-File Report 2007-1047-KP-09, 24 p., https://doi.org/10.3133/ofr20071047KP09.","productDescription":"24 p.","startPage":"91","endPage":"114","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280653,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP09.JPG"},{"id":280652,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp09/of2007-1047kp09.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":"53cd766fe4b0b2908510ae5e","contributors":{"authors":[{"text":"Siddoway, C.S.","contributorId":28893,"corporation":false,"usgs":true,"family":"Siddoway","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":487930,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70101070,"text":"ofr20071047SRP094 - 2007 - Seismic and chronostratigraphic results from SHALDRIL II, northwestern Weddell Sea","interactions":[],"lastModifiedDate":"2014-04-09T13:49:47","indexId":"ofr20071047SRP094","displayToPublicDate":"2007-01-01T12:31:00","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-094","title":"Seismic and chronostratigraphic results from SHALDRIL II, northwestern Weddell Sea","docAbstract":"The 2006 SHALDRIL II cruise was conducted in the northwestern Weddell Sea, with primary drilling \ntargets in the James Ross Basin. A site drilled along the northern edge of the James Ross Basin sampled either latest \nEocene or earliest Oligocene deposits, providing a lower chronostratigraphic benchmark for our seismic stratigraphic \nage model. Severe sea ice conditions forced abandonment of several of the James Ross Basin sites. Three alternate \nsites were drilled along the southern flank of the Joinville Plateau. Seismic data from the area show a thick, southward \ndipping stratigraphic succession with no conspicuous gaps. Three drill sites sampled this succession and recovered \nOligocene, middle Miocene, and early Pliocene strata overlain by a thin drape of Pleistocene deposits. The Pliocene-Miocene boundary appears to be represented by a disconformity within the cored interval. Otherwise, this is one of the \nmost complete post-Eocene successions anywhere on Antarctica and its adjacent margins","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/ofr20071047SRP094","usgsCitation":"Anderson, J., Wellner, J., Wise, S., Bohaty, S., Manley, P., Smith, T., Weaver, F., and Kulhanek, D., 2007, Seismic and chronostratigraphic results from SHALDRIL II, northwestern Weddell Sea: U.S. Geological Survey Open-File Report 2007-1047-SRP-094, 4 p., https://doi.org/10.3133/ofr20071047SRP094.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286017,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP094.png"},{"id":286013,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp094/of2007-1047srp094.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":"53559560e4b0120853e8c1d7","contributors":{"authors":[{"text":"Anderson, J.B.","contributorId":93965,"corporation":false,"usgs":true,"family":"Anderson","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":492583,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wellner, J.","contributorId":11507,"corporation":false,"usgs":true,"family":"Wellner","given":"J.","affiliations":[],"preferred":false,"id":492576,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wise, S.","contributorId":46415,"corporation":false,"usgs":true,"family":"Wise","given":"S.","email":"","affiliations":[],"preferred":false,"id":492581,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bohaty, S.","contributorId":33219,"corporation":false,"usgs":true,"family":"Bohaty","given":"S.","affiliations":[],"preferred":false,"id":492579,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Manley, P.","contributorId":37089,"corporation":false,"usgs":true,"family":"Manley","given":"P.","email":"","affiliations":[],"preferred":false,"id":492580,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Smith, T.","contributorId":28032,"corporation":false,"usgs":true,"family":"Smith","given":"T.","affiliations":[],"preferred":false,"id":492578,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Weaver, F.","contributorId":73500,"corporation":false,"usgs":true,"family":"Weaver","given":"F.","email":"","affiliations":[],"preferred":false,"id":492582,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kulhanek, D.","contributorId":16319,"corporation":false,"usgs":true,"family":"Kulhanek","given":"D.","email":"","affiliations":[],"preferred":false,"id":492577,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70094172,"text":"ofr20071047SRP052 - 2007 - Regional seismic stratigraphic correlations of the Ross Sea: Implications for the tectonic history of the West Antarctic Rift System","interactions":[],"lastModifiedDate":"2014-02-18T12:50:36","indexId":"ofr20071047SRP052","displayToPublicDate":"2007-01-01T11:56:00","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-SRP-052","title":"Regional seismic stratigraphic correlations of the Ross Sea: Implications for the tectonic history of the West Antarctic Rift System","docAbstract":"Using existing and new seismic reflection data, new and updated correlations of late Oligocene-early \nMiocene RSS-2 strata were made between the southern parts of Ross Sea basins. Previous studies documented \nCretaceous extension across much of Ross Sea. We interpret that Cenozoic extension also occurred across Ross Sea. \nSubsidence during and following this extension deepened existing basins and may have initiated basins in the west, \nsubsiding ridges between basins below sea level during the late Oligocene. Pre-Oligocene strata record cessation of L. \nCretaceous extension in easternmost Ross Sea. Successively younger Cenozoic extension occurred from east to west \nacross the rest of Ross Sea.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP052","usgsCitation":"Decesari, R.C., Sorlien, C., Luyendyk, B.P., Wilson, D.S., Bartek, L., Diebold, J., and Hopkins, S.E., 2007, Regional seismic stratigraphic correlations of the Ross Sea: Implications for the tectonic history of the West Antarctic Rift System: U.S. Geological Survey Open-File Report 2007-1047-SRP-052, 4 p., https://doi.org/10.3133/ofr20071047SRP052.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282481,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP052.JPG"},{"id":282479,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp052/of2007-1047srp052.pdf"}],"otherGeospatial":"Ross Sea","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 167.51,-84.68 ], [ 167.51,-74.86 ], [ -153.12,-74.86 ], [ -153.12,-84.68 ], [ 167.51,-84.68 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7004e4b0b29085106c6d","contributors":{"authors":[{"text":"Decesari, Robert C.","contributorId":78243,"corporation":false,"usgs":true,"family":"Decesari","given":"Robert","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":490533,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sorlien, Christopher C.","contributorId":78813,"corporation":false,"usgs":true,"family":"Sorlien","given":"Christopher C.","affiliations":[],"preferred":false,"id":490534,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luyendyk, Bruce P.","contributorId":100942,"corporation":false,"usgs":true,"family":"Luyendyk","given":"Bruce","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":490535,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wilson, Douglas S.","contributorId":68782,"corporation":false,"usgs":true,"family":"Wilson","given":"Douglas","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":490531,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bartek, Louis","contributorId":69060,"corporation":false,"usgs":true,"family":"Bartek","given":"Louis","email":"","affiliations":[],"preferred":false,"id":490532,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Diebold, John","contributorId":41736,"corporation":false,"usgs":true,"family":"Diebold","given":"John","affiliations":[],"preferred":false,"id":490530,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hopkins, Sarah E.","contributorId":20252,"corporation":false,"usgs":true,"family":"Hopkins","given":"Sarah","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490529,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70098940,"text":"ofr20071047SRP076 - 2007 - Organic carbon stocks in permafrost-affected soils from Admiralty Bay, Antarctica","interactions":[],"lastModifiedDate":"2014-03-19T12:51:16","indexId":"ofr20071047SRP076","displayToPublicDate":"2007-01-01T11:56:00","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-SRP-076","title":"Organic carbon stocks in permafrost-affected soils from Admiralty Bay, Antarctica","docAbstract":"Recent works show that organic matter accumulation in some soils from coastal Antarctica is higher than \npreviously expected. The objective of the present work was to estimate the organic C stocks for soils from maritime \nAntarctica. Cryosols from subpolar desert landscapes presented the lowest organic C stocks. Ornithogenic soils are the \nmost important C reservoirs in terrestrial ecosystems in this part of Antarctica. Although these soils correspond to only \n2.5 % of the ice-free areas at Admiralty Bay, they contain approximately 20 % of the estimated C stock. Most of the \norganic C in the studied soils is stored in the active layer but in some cases the C is also stored in the permafrost.","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/ofr20071047SRP076","usgsCitation":"Simas, F., Schaefer, C., Mendonca, E., Silva, I., Santana, R., and Ribeiro, A., 2007, Organic carbon stocks in permafrost-affected soils from Admiralty Bay, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-076, 4 p., https://doi.org/10.3133/ofr20071047SRP076.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":284232,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP076.PNG"},{"id":284230,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp076/of2007-1047srp076.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":"53cd6a11e4b0b2908510303a","contributors":{"authors":[{"text":"Simas, F.N.B.","contributorId":27784,"corporation":false,"usgs":true,"family":"Simas","given":"F.N.B.","affiliations":[],"preferred":false,"id":491755,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schaefer, C.E.G.R.","contributorId":25861,"corporation":false,"usgs":true,"family":"Schaefer","given":"C.E.G.R.","email":"","affiliations":[],"preferred":false,"id":491754,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mendonca, E.S.","contributorId":62926,"corporation":false,"usgs":true,"family":"Mendonca","given":"E.S.","email":"","affiliations":[],"preferred":false,"id":491756,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Silva, I.R.","contributorId":73915,"corporation":false,"usgs":true,"family":"Silva","given":"I.R.","email":"","affiliations":[],"preferred":false,"id":491757,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Santana, R.M.","contributorId":77043,"corporation":false,"usgs":true,"family":"Santana","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":491758,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ribeiro, A.S.S.","contributorId":77044,"corporation":false,"usgs":true,"family":"Ribeiro","given":"A.S.S.","email":"","affiliations":[],"preferred":false,"id":491759,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70103484,"text":"ofr20071047SRP107 - 2007 - Review of the geology and paleontology of the Ellsworth Mountains, Antarctica","interactions":[],"lastModifiedDate":"2014-05-05T13:12:33","indexId":"ofr20071047SRP107","displayToPublicDate":"2007-01-01T11:51:00","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-107","title":"Review of the geology and paleontology of the Ellsworth Mountains, Antarctica","docAbstract":"The geology of the Ellsworth Mountains has become known in detail only within the past 40-45 years, and \nthe wealth of paleontologic information within the past 25 years. The mountains are an anomaly, structurally speaking, \noccurring at right angles to the Transantarctic Mountains, implying a crustal plate rotation to reach the present location. \nPaleontologic affinities with other parts of Gondwanaland are evident, with nearly 150 fossil species ranging in age \nfrom Early Cambrian to Permian, with the majority from the Heritage Range. Trilobites and mollusks comprise most of \nthe fauna discovered and identified, including many new genera and species. A Glossopteris flora of Permian age \nprovides a comparison with other Gondwana floras of similar age. The quartzitic rocks that form much of the Sentinel \nRange have been sculpted by glacial erosion into spectacular alpine topography, resulting in eight of the highest peaks \nin Antarctica.","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/ofr20071047SRP107","usgsCitation":"Webers, G., and Splettstoesser, J., 2007, Review of the geology and paleontology of the Ellsworth Mountains, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-107, 5 p., https://doi.org/10.3133/ofr20071047SRP107.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286879,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP107.JPG"},{"id":286878,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp107/of2007-1047srp107.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":"5368b2fae4b059f7e828836c","contributors":{"authors":[{"text":"Webers, G.F.","contributorId":37651,"corporation":false,"usgs":true,"family":"Webers","given":"G.F.","affiliations":[],"preferred":false,"id":493359,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Splettstoesser, J.F.","contributorId":72306,"corporation":false,"usgs":true,"family":"Splettstoesser","given":"J.F.","affiliations":[],"preferred":false,"id":493360,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70103161,"text":"ofr20071047SRP099 - 2007 - Global polar geospatial information service retrieval based on search engine and ontology reasoning","interactions":[],"lastModifiedDate":"2014-04-29T13:15:57","indexId":"ofr20071047SRP099","displayToPublicDate":"2007-01-01T11:48:00","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-099","title":"Global polar geospatial information service retrieval based on search engine and ontology reasoning","docAbstract":"In order to improve the access precision of polar geospatial information service on web, a new methodology \nfor retrieving global spatial information services based on geospatial service search and ontology reasoning is proposed, \nthe geospatial service search is implemented to find the coarse service from web, the ontology reasoning is designed to \nfind the refined service from the coarse service. The proposed framework includes standardized distributed geospatial \nweb services, a geospatial service search engine, an extended UDDI registry, and a multi-protocol geospatial \ninformation service client. Some key technologies addressed include service discovery based on search engine and \nservice ontology modeling and reasoning in the Antarctic geospatial context. Finally, an Antarctica multi protocol OWS \nportal prototype based on the proposed methodology is introduced.","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/ofr20071047SRP099","usgsCitation":"Chen, N., E, D., Di, L., Gong, J., and Chen, Z., 2007, Global polar geospatial information service retrieval based on search engine and ontology reasoning: U.S. Geological Survey Open-File Report 2007-1047-SRP-099, 4 p., https://doi.org/10.3133/ofr20071047SRP099.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286770,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":286769,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp099/of2007-1047srp099.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":"5360c9eee4b082a3ecf53e08","contributors":{"authors":[{"text":"Chen, Nengcheng","contributorId":14734,"corporation":false,"usgs":true,"family":"Chen","given":"Nengcheng","email":"","affiliations":[],"preferred":false,"id":493176,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"E, Dongcheng","contributorId":37654,"corporation":false,"usgs":true,"family":"E","given":"Dongcheng","email":"","affiliations":[],"preferred":false,"id":493177,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Di, Liping","contributorId":41340,"corporation":false,"usgs":true,"family":"Di","given":"Liping","email":"","affiliations":[],"preferred":false,"id":493178,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gong, Jianya","contributorId":64566,"corporation":false,"usgs":true,"family":"Gong","given":"Jianya","email":"","affiliations":[],"preferred":false,"id":493179,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Chen, Zeqiang","contributorId":89447,"corporation":false,"usgs":true,"family":"Chen","given":"Zeqiang","email":"","affiliations":[],"preferred":false,"id":493180,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70094920,"text":"ofr20071047SRP070 - 2007 - Permafrost and active layer monitoring in the maritime Antarctic: Preliminary results from CALM sites on Livingston and Deception Islands","interactions":[],"lastModifiedDate":"2014-02-25T12:39:28","indexId":"ofr20071047SRP070","displayToPublicDate":"2007-01-01T11:47:00","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-070","title":"Permafrost and active layer monitoring in the maritime Antarctic: Preliminary results from CALM sites on Livingston and Deception Islands","docAbstract":"This paper describes results obtained from scientific work and experiments performed on Livingston and \nDeception Islands. Located in the South Shetland Archipelago, these islands have been some of the most sensitive \nregions over the last 50 years with respect to climate change with a Mean Annual Air Temperature (MAAT) close to -2 \nºC. Three Circumpolar Active Layer Monitoring (CALM) sites were installed to record the thermal regime and the \nbehaviour of the active layer in different places with similar climate, but with different soil composition, porosity, and \nwater content. The study’s ultimate aim is to document the influence of climate change on permafrost degradation. \nPreliminary results, obtained in 2006, on maximum active-layer thickness (around 40 cm in the CALM of Deception \nIsland), active layer temperature evolution, snow thickness, and air temperatures permit early characterization of \nenergy exchange mechanisms between the ground and the atmosphere in the CALM-S sites.","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/ofr20071047SRP070","usgsCitation":"Ramos, M., Vieira, G., Blanco, J., Hauck, C., Hidalgo, M., Tome, D., Nevers, M., and Trindade, A., 2007, Permafrost and active layer monitoring in the maritime Antarctic: Preliminary results from CALM sites on Livingston and Deception Islands: U.S. Geological Survey Open-File Report 2007-1047-SRP-070, 5 p., https://doi.org/10.3133/ofr20071047SRP070.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282764,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP070.JPG"},{"id":282763,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp070/of2007-1047srp070.pdf"}],"otherGeospatial":"Antarctica;Deception Island;Livingston Island","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -61.3430,-63.0195 ], [ -61.3430,-62.4517 ], [ -59.8054,-62.4517 ], [ -59.8054,-63.0195 ], [ -61.3430,-63.0195 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6ad4e4b0b29085103840","contributors":{"authors":[{"text":"Ramos, M.","contributorId":22677,"corporation":false,"usgs":true,"family":"Ramos","given":"M.","email":"","affiliations":[],"preferred":false,"id":490956,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vieira, G.","contributorId":35640,"corporation":false,"usgs":true,"family":"Vieira","given":"G.","email":"","affiliations":[],"preferred":false,"id":490957,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blanco, J.J.","contributorId":17136,"corporation":false,"usgs":true,"family":"Blanco","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":490954,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hauck, C.","contributorId":79017,"corporation":false,"usgs":true,"family":"Hauck","given":"C.","email":"","affiliations":[],"preferred":false,"id":490959,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hidalgo, M.A.","contributorId":96190,"corporation":false,"usgs":true,"family":"Hidalgo","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":490960,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Tome, D.","contributorId":17529,"corporation":false,"usgs":true,"family":"Tome","given":"D.","email":"","affiliations":[],"preferred":false,"id":490955,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Nevers, M.","contributorId":77453,"corporation":false,"usgs":true,"family":"Nevers","given":"M.","email":"","affiliations":[],"preferred":false,"id":490958,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Trindade, A.","contributorId":7614,"corporation":false,"usgs":true,"family":"Trindade","given":"A.","email":"","affiliations":[],"preferred":false,"id":490953,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70065870,"text":"ofr20071047KP08 - 2007 - A pan-Precambrian link between deglaciation and environmental oxidation","interactions":[],"lastModifiedDate":"2014-01-07T11:55:04","indexId":"ofr20071047KP08","displayToPublicDate":"2007-01-01T11:38:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-KP-08","title":"A pan-Precambrian link between deglaciation and environmental oxidation","docAbstract":"Despite a continuous increase in solar luminosity to the present, Earth’s glacial record appears to become more frequent, \nthough less severe, over geological time. At least two of the \nthree major Precambrian glacial intervals were exceptionally \nintense, with solid evidence for widespread sea ice on or near \nthe equator, well within a “Snowball Earth” zone produced \nby ice-albedo runaway in energy-balance models. The end \nof the first unambiguously low-latitude glaciation, the early \nPaleoproterozoic Makganyene event, is associated intimately \nwith the first solid evidence for global oxygenation, including the world’s largest sedimentary manganese deposit. \nSubsequent low-latitude deglaciations during the Cryogenian \ninterval of the Neoproterozoic Era are also associated with \nprogressive oxidation, and these young Precambrian ice ages \ncoincide with the time when basal animal phyla were diversifying. However, specifically testing hypotheses of cause \nand effect between Earth’s Neoproterozoic biosphere and \nglaciation is complicated because large and rapid True Polar \nWander events appear to punctuate Neoproterozoic time and \nmay have episodically dominated earlier and later intervals \nas well, rendering geographic reconstruction and age correlation challenging except for an exceptionally well-defined \nglobal paleomagnetic database.","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":6,"text":"USGS Unnumbered Series"},"language":"English","publisher":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP08","usgsCitation":"Raub, T., and Kirschvink, J., 2007, A pan-Precambrian link between deglaciation and environmental oxidation: U.S. Geological Survey Open-File Report 2007-1047-KP-08, 8 p., https://doi.org/10.3133/ofr20071047KP08.","productDescription":"8 p.","startPage":"83","endPage":"90","costCenters":[],"links":[{"id":280649,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP08.JPG"},{"id":280648,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp08/of2007-1047kp08.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":"53cd4a40e4b0b290850efa7b","contributors":{"authors":[{"text":"Raub, T.J.","contributorId":74290,"corporation":false,"usgs":true,"family":"Raub","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":487919,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kirschvink, J.L.","contributorId":59717,"corporation":false,"usgs":true,"family":"Kirschvink","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":487918,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70094168,"text":"ofr20071047SRP051 - 2007 - Jurassic silicic volcanism in the Transantarctic Mountains: Was it related to plate margin processes or to Ferrar magmatism?","interactions":[],"lastModifiedDate":"2014-02-18T11:52:38","indexId":"ofr20071047SRP051","displayToPublicDate":"2007-01-01T11:34:00","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-051","title":"Jurassic silicic volcanism in the Transantarctic Mountains: Was it related to plate margin processes or to Ferrar magmatism?","docAbstract":"Silicic volcanism in the Transantarctic Mountains, represented by rhyolitic tuff that mainly precedes \nemplacement of the Ferrar Large Igneous Province, is important in interpretation of the tectonic evolution of the \nAntarctic sector of Gondwana. Sr and Nd isotope data indicate that the tuffs are not directly related to Ferrar \nmagmatism nor to melting of the underlying Ross orogen crust yet zircon gives a U-Pb age of 182.7±1.8 Ma, similar to \nthe U/Pb age for the Ferrar. Distribution of the silicic tuffs along 1400 km of the Transantarctic Mountains suggests, \nalternatively, a relationship to the Gondwana plate margin. Although West Antarctica comprises Mesoproterozoic \ncrustal terrains, few analyzed rocks are compatible isotopically with the Lower Jurassic tuffs. The source of the tuffs \nmust lie in unexposed Early Jurassic magmatic centers in West Antarctica or an unexposed crustal terrain beneath the \nTransantarctic Mountains.","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/ofr20071047SRP051","usgsCitation":"Elliot, D., Fleming, T., Foland, K., and Fanning, C., 2007, Jurassic silicic volcanism in the Transantarctic Mountains: Was it related to plate margin processes or to Ferrar magmatism?: U.S. Geological Survey Open-File Report 2007-1047-SRP-051, 5 p., https://doi.org/10.3133/ofr20071047SRP051.","productDescription":"5 p.","onlineOnly":"N","costCenters":[],"links":[{"id":282478,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP051.JPG"},{"id":282477,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp051/of2007-1047srp051.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 146.0,-88.1 ], [ 146.0,-71.4 ], [ -15.4,-71.4 ], [ -15.4,-88.1 ], [ 146.0,-88.1 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6364e4b0b290850fec44","contributors":{"authors":[{"text":"Elliot, D.H.","contributorId":40670,"corporation":false,"usgs":true,"family":"Elliot","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":490526,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fleming, T.H.","contributorId":69057,"corporation":false,"usgs":true,"family":"Fleming","given":"T.H.","email":"","affiliations":[],"preferred":false,"id":490527,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Foland, K.A.","contributorId":13357,"corporation":false,"usgs":true,"family":"Foland","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":490525,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fanning, C.M.","contributorId":82434,"corporation":false,"usgs":true,"family":"Fanning","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":490528,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70103159,"text":"ofr20071047SRP098 - 2007 - Cretaceous and Tertiary extension throughout the Ross Sea, Antarctica","interactions":[],"lastModifiedDate":"2014-04-29T11:44:24","indexId":"ofr20071047SRP098","displayToPublicDate":"2007-01-01T11:28:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-098","title":"Cretaceous and Tertiary extension throughout the Ross Sea, Antarctica","docAbstract":"Marine geophysical data from the deep sea adjacent to the Ross Sea, Antarctica suggest that \u001870 km of \nextension occurred between East and West Antarctica from 46 to 2\u0018 Ma. The Northern and Victoria Land Basins in the \nwestern Ross Sea adjacent to the Transantarctic Mountains accommodated 95 km of this extension. Several kilometers \nof Oligocene sediments are found in the Central Trough and Eastern Basin in the eastern Ross Sea. Subsidence \nmodeling accounts for these accumulations with about 40 km of extension in each basin centered on 35 Ma; therefore \nRoss Sea-wide Tertiary extension was comparable to extension in the deep-sea system. The early Tertiary geometry was \nof one oceanic rift that branched into at least three rifts in the continental lithosphere. This pattern is likely due to the \ncontrast of physical properties and thermal state between the two different lithospheres at the continent-ocean boundary.","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/ofr20071047SRP098","usgsCitation":"Decesari, R.C., Wilson, D.C., Luyendyk, B.P., and Faulkner, M., 2007, Cretaceous and Tertiary extension throughout the Ross Sea, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-098, 6 p., https://doi.org/10.3133/ofr20071047SRP098.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286763,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp098/of2007-1047srp098.pdf"},{"id":286764,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP098.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":"5360c9e9e4b082a3ecf53df1","contributors":{"authors":[{"text":"Decesari, Robert C.","contributorId":78243,"corporation":false,"usgs":true,"family":"Decesari","given":"Robert","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":493173,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, Douglas C.","contributorId":34828,"corporation":false,"usgs":true,"family":"Wilson","given":"Douglas","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":493172,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luyendyk, Bruce P.","contributorId":100942,"corporation":false,"usgs":true,"family":"Luyendyk","given":"Bruce","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":493175,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Faulkner, Michael","contributorId":100294,"corporation":false,"usgs":true,"family":"Faulkner","given":"Michael","email":"","affiliations":[],"preferred":false,"id":493174,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70094167,"text":"ofr20071047SRP050 - 2007 - New magnetic anomaly map of East Antarctica and surrounding regions","interactions":[],"lastModifiedDate":"2014-02-18T11:30:56","indexId":"ofr20071047SRP050","displayToPublicDate":"2007-01-01T11:19:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-050","title":"New magnetic anomaly map of East Antarctica and surrounding regions","docAbstract":"More than 500,000 line-km of new airborne and shipborne data, recently acquired by the international\ncommunity over East Antarctica and surrounding regions, significantly upgrade the Antarctic Digital Magnetic \nAnomaly Project (ADMAP) compilation and lead to substantial improvements in magnetic anomaly pattern recognition. \nNew data have been matched in one inverse operation by minimizing the data differences for the areas of overlap. The \naeromagnetic data show many previously unknown magnetic patterns, lineaments and trends, defining the spatial extent \nof Ferrar volcanics and plutonic Granite Harbour Intrusives in the Transantarctic Mountains and previously unknown \ntectonic trends of the East Antarctic craton. Regional aeromagnetic investigations have successfully delineated Early \nPaleozoic inherited crustal features along the flanks of the West Antarctic Rift System and the southern boundary of the \nArchean Ruker Terrane in the Prince Charles Mountains. Magnetic records along the East Antarctic continental margin \nprovide new constraints on the breakup of Gondwana.","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/ofr20071047SRP050","usgsCitation":"Golynsky, A., Blankenship, D., Chiappini, M., Damaske, D., Ferraccioli, F., Finn, C., Golynsky, D., Goncharov, A., Ishihara, T., Ivanov, S., Jokat, W., Kim, H., Konig, M., Masolov, V., Nogi, Y., Sand, M., Studing, M., and ADMAP Working Group, 2007, New magnetic anomaly map of East Antarctica and surrounding regions: U.S. Geological Survey Open-File Report 2007-1047-SRP-050, Report: 4 p.; Plate: 30.85 inches x 34.18 inches, https://doi.org/10.3133/ofr20071047SRP050.","productDescription":"Report: 4 p.; Plate: 30.85 inches x 34.18 inches","additionalOnlineFiles":"Y","costCenters":[],"links":[{"id":282476,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP050.JPG"},{"id":282475,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp050/of2007-1047srp050_plate1.pdf"},{"id":282474,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp050/of2007-1047srp050.pdf"}],"otherGeospatial":"Antarctica","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd68fce4b0b290851026ba","contributors":{"authors":[{"text":"Golynsky, A.","contributorId":78242,"corporation":false,"usgs":true,"family":"Golynsky","given":"A.","email":"","affiliations":[],"preferred":false,"id":490518,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blankenship, D.","contributorId":108260,"corporation":false,"usgs":true,"family":"Blankenship","given":"D.","affiliations":[],"preferred":false,"id":490524,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chiappini, Massimo","contributorId":73106,"corporation":false,"usgs":true,"family":"Chiappini","given":"Massimo","email":"","affiliations":[],"preferred":false,"id":490516,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Damaske, D.","contributorId":66771,"corporation":false,"usgs":true,"family":"Damaske","given":"D.","affiliations":[],"preferred":false,"id":490515,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ferraccioli, Fausto","contributorId":43591,"corporation":false,"usgs":true,"family":"Ferraccioli","given":"Fausto","email":"","affiliations":[],"preferred":false,"id":490510,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Finn, C.","contributorId":60219,"corporation":false,"usgs":true,"family":"Finn","given":"C.","email":"","affiliations":[],"preferred":false,"id":490514,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Golynsky, D.","contributorId":93379,"corporation":false,"usgs":true,"family":"Golynsky","given":"D.","email":"","affiliations":[],"preferred":false,"id":490519,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Goncharov, A.","contributorId":105221,"corporation":false,"usgs":true,"family":"Goncharov","given":"A.","affiliations":[],"preferred":false,"id":490523,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Ishihara, T.","contributorId":14298,"corporation":false,"usgs":true,"family":"Ishihara","given":"T.","email":"","affiliations":[],"preferred":false,"id":490507,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Ivanov, S.","contributorId":37252,"corporation":false,"usgs":true,"family":"Ivanov","given":"S.","email":"","affiliations":[],"preferred":false,"id":490509,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Jokat, W.","contributorId":59242,"corporation":false,"usgs":true,"family":"Jokat","given":"W.","affiliations":[],"preferred":false,"id":490513,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Kim, H.R.","contributorId":100742,"corporation":false,"usgs":true,"family":"Kim","given":"H.R.","email":"","affiliations":[],"preferred":false,"id":490520,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Konig, M.","contributorId":35229,"corporation":false,"usgs":true,"family":"Konig","given":"M.","email":"","affiliations":[],"preferred":false,"id":490508,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Masolov, Valery","contributorId":102788,"corporation":false,"usgs":true,"family":"Masolov","given":"Valery","email":"","affiliations":[],"preferred":false,"id":490522,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Nogi, Y.","contributorId":102379,"corporation":false,"usgs":true,"family":"Nogi","given":"Y.","email":"","affiliations":[],"preferred":false,"id":490521,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Sand, M.","contributorId":49270,"corporation":false,"usgs":true,"family":"Sand","given":"M.","email":"","affiliations":[],"preferred":false,"id":490511,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Studing, M.","contributorId":76224,"corporation":false,"usgs":true,"family":"Studing","given":"M.","email":"","affiliations":[],"preferred":false,"id":490517,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"ADMAP Working Group","contributorId":128064,"corporation":true,"usgs":false,"organization":"ADMAP Working Group","id":535628,"contributorType":{"id":1,"text":"Authors"},"rank":18}]}}
]}