{"pageNumber":"178","pageRowStart":"4425","pageSize":"25","recordCount":37001,"records":[{"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":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":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":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, 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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, 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,{"id":70094918,"text":"ofr20071047SRP068 - 2007 - The United States Polar Rock Repository: A geological resource for the Earth science community","interactions":[],"lastModifiedDate":"2014-02-25T11:28:24","indexId":"ofr20071047SRP068","displayToPublicDate":"2007-01-01T11:05:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-068","title":"The United States Polar Rock Repository: A geological resource for the Earth science community","docAbstract":"The United States Polar Rock Repository (USPRR) is a U. S. national facility designed for the permanent \ncuratorial preservation of rock samples, along with associated materials such as field notes, annotated air photos and \nmaps, raw analytic data, paleomagnetic cores, ground rock and mineral residues, thin sections, and microfossil mounts, \nmicroslides and residues from Polar areas. This facility was established by the Office of Polar Programs at the U. S. \nNational Science Foundation (NSF) to minimize redundant sample collecting, and also because the extreme cold and \nhazardous field conditions make fieldwork costly and difficult. The repository provides, along with an on-line database \nof sample information, an essential resource for proposal preparation, pilot studies and other sample based research that \nshould make fieldwork more efficient and effective. This latter aspect should reduce the environmental impact of \nconducting research in sensitive Polar Regions. The USPRR also provides samples for educational outreach. Rock \nsamples may be borrowed for research or educational purposes as well as for museum exhibits.","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/ofr20071047SRP068","usgsCitation":"Grunow, A.M., Elliot, D.H., and Codispoti, J.E., 2007, The United States Polar Rock Repository: A geological resource for the Earth science community: U.S. Geological Survey Open-File Report 2007-1047-SRP-068, Report: 3 p.; Plate 1: 2 p.; Plate 2: 1 p.; Plate 3: 1 p., https://doi.org/10.3133/ofr20071047SRP068.","productDescription":"Report: 3 p.; Plate 1: 2 p.; Plate 2: 1 p.; Plate 3: 1 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282748,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp068/of2007-1047srp068.pdf"},{"id":282749,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP068.JPG"},{"id":282753,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp068/of2007-1047srp068_plate2.pdf"},{"id":282754,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp068/of2007-1047srp068_plate3.pdf"},{"id":282752,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp068/of2007-1047srp068_plate1.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd775be4b0b2908510b7b6","contributors":{"authors":[{"text":"Grunow, Annie M.","contributorId":34822,"corporation":false,"usgs":true,"family":"Grunow","given":"Annie","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":490948,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elliot, David H.","contributorId":51597,"corporation":false,"usgs":true,"family":"Elliot","given":"David","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":490949,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Codispoti, Julie E.","contributorId":105641,"corporation":false,"usgs":true,"family":"Codispoti","given":"Julie","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490950,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70074341,"text":"ofr20071047SRP021 - 2007 - Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet?","interactions":[],"lastModifiedDate":"2014-01-29T10:57:43","indexId":"ofr20071047SRP021","displayToPublicDate":"2007-01-01T10:45:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-021","title":"Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet?","docAbstract":"We observe in 6 key sectors of East and West Antarctica continental margin a change in the geometry of the\nsedimentary deposits which is characterized by: margin-wide erosion and subsequent progradation on the continental\nshelf; downlap on the continental slope; major mass wasting deposits on the continental rise. The change occurs in the\nlate Neogene in all sectors, though some natural variation exists, and the stratigraphic position is not obvious for every\nmargin. The change is apparently synchronous and dated about 3 Ma in Antarctic Peninsula and Prydz Bay margins and\nbroadly concomitant in the others sectors. This suggests a common driving force, which we suggest to be the transition\nof the Antarctic ice sheet regime from polythermal to present polar cold, dry-based 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/ofr20071047SRP021","usgsCitation":"Rebesco, M., and Camerlenghi, A., 2007, Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet?: U.S. Geological Survey Open-File Report 2007-1047-SRP-021, 5 p., https://doi.org/10.3133/ofr20071047SRP021.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281646,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP021.png"},{"id":281645,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp021/of2007-1047srp021.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":"53cd55c1e4b0b290850f67fd","contributors":{"authors":[{"text":"Rebesco, M.","contributorId":60120,"corporation":false,"usgs":true,"family":"Rebesco","given":"M.","affiliations":[],"preferred":false,"id":489526,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Camerlenghi, Angelo","contributorId":7450,"corporation":false,"usgs":true,"family":"Camerlenghi","given":"Angelo","email":"","affiliations":[],"preferred":false,"id":489525,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70094914,"text":"ofr20071047SRP067 - 2007 - Influence of submarine morphology on bottom water flow across the western Ross Sea continental margin","interactions":[],"lastModifiedDate":"2014-02-25T11:02:27","indexId":"ofr20071047SRP067","displayToPublicDate":"2007-01-01T10:43:00","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-067","title":"Influence of submarine morphology on bottom water flow across the western Ross Sea continental margin","docAbstract":"Multibeam sonar bathymetry documents a lack of significant channels crossing outer continental shelf and \nslope of the western Ross Sea. This indicates that movement of bottom water across the shelf break into the deep ocean \nin this area is mainly by laminar or sheet flow. Subtle, ~20 m deep and up to 1000 m wide channels extend down the \ncontinental slope, into tributary drainage patterns on the upper rise, and then major erosional submarine canyons. These \ndown-slope channels may have been formed by episodic pulses of rapid down slope water flow, some recorded on \nbottom current meters, or by sub-ice melt water erosion from an icesheet grounded at the margin. Narrow, mostly linear \nfurrows on the continental shelf thought to be caused by iceberg scouring are randomly oriented, have widths generally \nless than 400 m and depths less than 30m, and extend to water depths in excess of 600 m.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP067","usgsCitation":"Davey, F., and Jacobs, S., 2007, Influence of submarine morphology on bottom water flow across the western Ross Sea continental margin: U.S. Geological Survey Open-File Report 2007-1047-SRP-067, 5 p., https://doi.org/10.3133/ofr20071047SRP067.","productDescription":"5 p.","onlineOnly":"N","costCenters":[],"links":[{"id":282747,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP067.JPG"},{"id":282746,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp067/of2007-1047srp067.pdf"}],"otherGeospatial":"Antarctica;Ross Sea","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -175.59,-78.65 ], [ -175.59,-74.01 ], [ -148.95,-74.01 ], [ -148.95,-78.65 ], [ -175.59,-78.65 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd628fe4b0b290850fe403","contributors":{"authors":[{"text":"Davey, F.J.","contributorId":99152,"corporation":false,"usgs":true,"family":"Davey","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":490944,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jacobs, S.S.","contributorId":19471,"corporation":false,"usgs":true,"family":"Jacobs","given":"S.S.","email":"","affiliations":[],"preferred":false,"id":490943,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70100984,"text":"ofr20071047SRP089 - 2007 - Airborne laser swath mapping of the Denton Hills, Transantarctic Mountains, Antarctica: Applications for structural and glacial geomorphic mapping","interactions":[],"lastModifiedDate":"2014-04-08T11:30:04","indexId":"ofr20071047SRP089","displayToPublicDate":"2007-01-01T10:35:00","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-089","title":"Airborne laser swath mapping of the Denton Hills, Transantarctic Mountains, Antarctica: Applications for structural and glacial geomorphic mapping","docAbstract":"High-resolution digital elevation data acquired by airborne laser scanning (ALS) for the Denton Hills, along \nthe coastal foothills of the Royal Society Range, Transantarctic Mountains, are examined for applications to bedrock \nand glacial geomorphic mapping. Digital elevation models (DEMs), displayed as shaded-relief images and slope maps, \nportray geomorphic landscape features in unprecedented detail across the region. Structures of both ductile and brittle \norigin, ranging in age from the Paleozoic to the Quaternary, can be mapped from the DEMs. Glacial features, providing \na record of the limits of grounded ice, of lake paleoshorelines, and of proglacial lake-ice conveyor deposits, are also \nprominent on the DEMs. The ALS-derived topographic data have great potential for a range of mapping applications in \nregions of ice-free terrain in Antarctica","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"High-resolution digital elevation data acquired by airborne laser scanning (ALS) for the Denton Hills, along  the coastal foothills of the Royal Society Range, Transantarctic Mountains, are examined for applications to bedrock  and glacial geomorphic mapping. Digital elevation models (DEMs), displayed as shaded-relief images and slope maps,  portray geomorphic landscape features in unprecedented detail across the region. Structures of both ductile and brittle  origin, ranging in age from the Paleozoic to the Quaternary, can be mapped from the DEMs. Glacial features, providing  a record of the limits of grounded ice, of lake paleoshorelines, and of proglacial lake-ice conveyor deposits, are also  prominent on the DEMs. The ALS-derived topographic data have great potential for a range of mapping applications in  regions of ice-free terrain in Antarctica","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP089","usgsCitation":"Wilson, T., and Csatho, B., 2007, Airborne laser swath mapping of the Denton Hills, Transantarctic Mountains, Antarctica: Applications for structural and glacial geomorphic mapping: U.S. Geological Survey Open-File Report 2007-1047-SRP-089, 6 p., https://doi.org/10.3133/ofr20071047SRP089.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":285883,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp089/of2007-1047srp089.pdf"},{"id":285885,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP089.PNG"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53558fc5e4b0120853e8be2b","contributors":{"authors":[{"text":"Wilson, Terry","contributorId":33618,"corporation":false,"usgs":true,"family":"Wilson","given":"Terry","affiliations":[],"preferred":false,"id":492483,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Csatho, Beata","contributorId":17530,"corporation":false,"usgs":true,"family":"Csatho","given":"Beata","email":"","affiliations":[],"preferred":false,"id":492482,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70094913,"text":"ofr20071047SRP066 - 2007 - Occurrence of a young elasmosaurid plesiosaur skeleton from the Late Cretaceous (Maastrichtian) of Antarctica","interactions":[],"lastModifiedDate":"2014-02-25T10:39:32","indexId":"ofr20071047SRP066","displayToPublicDate":"2007-01-01T10:26:00","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-066","title":"Occurrence of a young elasmosaurid plesiosaur skeleton from the Late Cretaceous (Maastrichtian) of Antarctica","docAbstract":"The most completely articulated fossil skeleton heretofore found on the continent of Antarctica is \nrepresented by a juvenile plesiosaur. The specimen was found in the Sandwich Bluff area of Vega Island east of the \nAntarctic Peninsula from Late Cretaceous (Maastrichtian) marine deposits from the upper Snow Hill Island Formation. \nThe plesiosaur skeleton is represented by a nearly complete torso, partial paddles, and neck and tail sections. Along the \nventral margin of the torso are articulated gastralia, some that are unusual in being forked. Numerous small gastroliths \nare associated within the trunk cavity, indicating that even juveniles ingest gastroliths. Coupled with other known \nspecimens, the skeleton indicates shallow marine environment may have been an area where marine reptiles had their \nyoung, and the young remained until reaching maturity prior to facing open marine environments. The morphology of \nthe specimen suggests the skeleton represents a juvenile Mauisaurus, an elasmosaurid plesiosaur taxon originally \ndescribed from New Zealand and endemic to the Weddellian Province of the austral region.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP066","usgsCitation":"Martin, J.E., Sawyer, J.F., Reguero, M., and Case, J.A., 2007, Occurrence of a young elasmosaurid plesiosaur skeleton from the Late Cretaceous (Maastrichtian) of Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-066, 4 p., https://doi.org/10.3133/ofr20071047SRP066.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282740,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP066.JPG"},{"id":282737,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp066/of2007-1047srp066.pdf"}],"otherGeospatial":"Antarctica;Vega Island","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -57.7225,-63.9193 ], [ -57.7225,-63.8526 ], [ -57.5134,-63.8526 ], [ -57.5134,-63.9193 ], [ -57.7225,-63.9193 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd69b9e4b0b29085102cb1","contributors":{"authors":[{"text":"Martin, James E.","contributorId":93826,"corporation":false,"usgs":true,"family":"Martin","given":"James","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490942,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sawyer, J. Foster","contributorId":80344,"corporation":false,"usgs":true,"family":"Sawyer","given":"J.","email":"","middleInitial":"Foster","affiliations":[],"preferred":false,"id":490941,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Reguero, Marcelo","contributorId":50079,"corporation":false,"usgs":true,"family":"Reguero","given":"Marcelo","email":"","affiliations":[],"preferred":false,"id":490940,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Case, Judd A.","contributorId":11945,"corporation":false,"usgs":true,"family":"Case","given":"Judd","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":490939,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70094159,"text":"ofr20071047SRP049 - 2007 - Tectonic history of mid-Miocene to present southern Victoria Land Basin,  inferred from seismic stratigraphy in McMurdo Sound, Antarctica","interactions":[],"lastModifiedDate":"2014-02-18T10:39:00","indexId":"ofr20071047SRP049","displayToPublicDate":"2007-01-01T10:26:00","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-049","title":"Tectonic history of mid-Miocene to present southern Victoria Land Basin,  inferred from seismic stratigraphy in McMurdo Sound, Antarctica","docAbstract":"New and existing seismic reflection data in southern McMurdo Sound have been used to investigate\nNeogene tectonic history of the Terror Rift adjacent to the Transantarctic Mountains and along the western margin of the West Antarctic Rift System. Seismic data image a young rifting episode that is largely unsampled by CRP and CIROS drill holes. Data reveal up to 3.5 km of post middle Miocene strata deposited in this part of the NNW-\nSSE trending Terror Rift basin. Mapped fault trends in the southern Terror Rift parallel the axis of the basin and are\nprominent in a 40 km wide zone north of Ross Island. Displacement on individual faults in this zone can exceed 100\nm and faults collectively accommodate approximately 10-15 km of middle Miocene to recent extension.","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/ofr20071047SRP049","usgsCitation":"Henrys, S., Wilson, T., Whittaker, J., Fielding, C., Hall, J., and Naish, T., 2007, Tectonic history of mid-Miocene to present southern Victoria Land Basin,  inferred from seismic stratigraphy in McMurdo Sound, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-049, 4 p., https://doi.org/10.3133/ofr20071047SRP049.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282465,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP049.JPG"},{"id":282464,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp049/of2007-1047srp049.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":"53cd7668e4b0b2908510ae14","contributors":{"authors":[{"text":"Henrys, S.","contributorId":27632,"corporation":false,"usgs":true,"family":"Henrys","given":"S.","email":"","affiliations":[],"preferred":false,"id":490489,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, T.","contributorId":49581,"corporation":false,"usgs":true,"family":"Wilson","given":"T.","affiliations":[],"preferred":false,"id":490490,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Whittaker, J.M.","contributorId":26226,"corporation":false,"usgs":true,"family":"Whittaker","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":490488,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fielding, C.","contributorId":20652,"corporation":false,"usgs":true,"family":"Fielding","given":"C.","email":"","affiliations":[],"preferred":false,"id":490487,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hall, J.","contributorId":66425,"corporation":false,"usgs":true,"family":"Hall","given":"J.","affiliations":[],"preferred":false,"id":490491,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Naish, T.","contributorId":82151,"corporation":false,"usgs":true,"family":"Naish","given":"T.","email":"","affiliations":[],"preferred":false,"id":490492,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70103155,"text":"ofr20071047SRP097 - 2007 - Subglacial conditions at a sticky spot along Kamb Ice Stream, West Antarctica","interactions":[],"lastModifiedDate":"2014-04-29T11:23:30","indexId":"ofr20071047SRP097","displayToPublicDate":"2007-01-01T10:23:00","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-097","title":"Subglacial conditions at a sticky spot along Kamb Ice Stream, West Antarctica","docAbstract":"We present the results of a seismic reflection experiment performed transverse to flow a few tens of \nkilometers above the main trunk of Kamb Ice Stream, West Antarctica, where we image a basal high surrounded by \nvariable subglacial conditions. This high rises as much as 200 m above the surrounding bed, acting as a major \nsticking point that resists fast flow. Application of the amplitude variation with offset (AVO) seismic technique has \nhighlighted regions of frozen sediments along our profile, suggesting that the ice stream is experiencing basal \nfreeze-on in the region. The bedrock high appears to be at least partially draped in sediment cover, with a \nconcentrated area of weak, dilatant till flanking one edge. This dilatant till is further dispersed along our profile, \nthough it does not possess enough continuity to maintain streaming ice conditions. These results support the \nhypothesis that the ongoing shutdown of Kamb Ice Stream is due to a loss in continuous basal lubrication.","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/ofr20071047SRP097","usgsCitation":"Peters, L., and Anandakrishnan, S., 2007, Subglacial conditions at a sticky spot along Kamb Ice Stream, West Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-097, 5 p., https://doi.org/10.3133/ofr20071047SRP097.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286762,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP097.JPG"},{"id":286761,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp097/of2007-1047srp097.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":"5360c9fce4b082a3ecf53e39","contributors":{"authors":[{"text":"Peters, L.E.","contributorId":106014,"corporation":false,"usgs":true,"family":"Peters","given":"L.E.","email":"","affiliations":[],"preferred":false,"id":493171,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anandakrishnan, Sridhar","contributorId":29307,"corporation":false,"usgs":true,"family":"Anandakrishnan","given":"Sridhar","email":"","affiliations":[],"preferred":false,"id":493170,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70101053,"text":"ofr20071047SRP093 - 2007 - The next generation Antarctic digital magnetic anomaly map","interactions":[],"lastModifiedDate":"2014-04-09T12:19:44","indexId":"ofr20071047SRP093","displayToPublicDate":"2007-01-01T10:18:00","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-093","title":"The next generation Antarctic digital magnetic anomaly map","docAbstract":"Initiated in 1995, the Antarctic Digital Magnetic Anomaly Project (ADMAP) produced the first magnetic \nanomaly map of the Antarctic region south of 60\no\nS (Golynsky et al., 2001). This map synthesized over 7.1 million line-kms of survey data available up through 1999 from marine, airborne and Magsat satellite observations. Since the \nproduction of the initial map, a large number of new marine and airborne surveys and improved magnetic observations \nfrom the Ørsted and CHAMP satellite missions have become available. In addition, an improved core field model for \nthe Antarctic has been developed to better isolate crustal anomalies in these data. The next generation compilation also \nwill likely represent the magnetic survey observations of the region in terms of a high-resolution spherical cap harmonic \nmodel. In this paper, we review the progress and problems of developing an improved magnetic anomaly map to \nfacilitate studies of the Antarctic crustal magnetic field","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/ofr20071047SRP093","usgsCitation":"von Frese, R.R., Golynsky, A., Kim, H., Gaya-Pique, L., Thébault, E., Chiappinii, M., Ghidella, M., Grunow, A., and ADMAP Working Group, 2007, The next generation Antarctic digital magnetic anomaly map: U.S. Geological Survey Open-File Report 2007-1047-SRP-093, Report: 4 p.; Plate: 33.11 inches x 46.81 inches, https://doi.org/10.3133/ofr20071047SRP093.","productDescription":"Report: 4 p.; Plate: 33.11 inches x 46.81 inches","additionalOnlineFiles":"Y","costCenters":[],"links":[{"id":285955,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP093.png"},{"id":285953,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp093/of2007-1047srp093_plate1.pdf"},{"id":285954,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp093/of2007-1047srp093.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":"535595a0e4b0120853e8c28b","contributors":{"authors":[{"text":"von Frese, Ralph R. B.","contributorId":33953,"corporation":false,"usgs":true,"family":"von Frese","given":"Ralph","email":"","middleInitial":"R. B.","affiliations":[],"preferred":false,"id":492563,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Golynsky, A.V.","contributorId":15513,"corporation":false,"usgs":true,"family":"Golynsky","given":"A.V.","email":"","affiliations":[],"preferred":false,"id":492562,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kim, H.R.","contributorId":100742,"corporation":false,"usgs":true,"family":"Kim","given":"H.R.","email":"","affiliations":[],"preferred":false,"id":492569,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gaya-Pique, L.","contributorId":6761,"corporation":false,"usgs":true,"family":"Gaya-Pique","given":"L.","email":"","affiliations":[],"preferred":false,"id":492561,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Thébault, E.","contributorId":56974,"corporation":false,"usgs":true,"family":"Thébault","given":"E.","affiliations":[],"preferred":false,"id":492565,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chiappinii, M.","contributorId":72707,"corporation":false,"usgs":true,"family":"Chiappinii","given":"M.","email":"","affiliations":[],"preferred":false,"id":492566,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ghidella, M.","contributorId":95794,"corporation":false,"usgs":true,"family":"Ghidella","given":"M.","affiliations":[],"preferred":false,"id":492567,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Grunow, A.","contributorId":99892,"corporation":false,"usgs":true,"family":"Grunow","given":"A.","affiliations":[],"preferred":false,"id":492568,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"ADMAP Working Group","contributorId":128064,"corporation":true,"usgs":false,"organization":"ADMAP Working Group","id":535648,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70100555,"text":"ofr20071047SRP087 - 2007 - The \"Golden Shale\": An indicator of coastal stability for Marble Point, McMurdo Sound, over the last four million years","interactions":[],"lastModifiedDate":"2014-04-02T11:02:22","indexId":"ofr20071047SRP087","displayToPublicDate":"2007-01-01T10:15:00","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-087","title":"The \"Golden Shale\": An indicator of coastal stability for Marble Point, McMurdo Sound, over the last four million years","docAbstract":"A small sedimentary deposit near Gneiss Point on the western side of McMurdo Sound, previously identified as \nshale, is described. The deposit is phillipsite, a zeolite that is believed to have formed from the deposition and alteration of \nvolcanic ash in a small ice-marginal saline lake. Other previously recorded occurrences of phillipsite in the dry valleys are \nbelieved to be several million years old. A similar age for this deposit is suggested for the Gneiss Point deposit. This is \nconsistent with other weathering and landscape features found in the immediate area, including traces of halloysite in soils. \nThe deposit is very close to sea level but could not have formed if the site had been below sea level, indicating that there has \nbeen very little uplift following that which caused the sea to retreat from the Wright Fiord.","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/ofr20071047SRP087","usgsCitation":"Claridge, G., and Campbell, I., 2007, The \"Golden Shale\": An indicator of coastal stability for Marble Point, McMurdo Sound, over the last four million years: U.S. Geological Survey Open-File Report 2007-1047-SRP-087, 4 p., https://doi.org/10.3133/ofr20071047SRP087.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":285299,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP087.PNG"},{"id":285298,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp087/of2007-1047srp087.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":"5355959ae4b0120853e8c252","contributors":{"authors":[{"text":"Claridge, G.G.C.","contributorId":89059,"corporation":false,"usgs":true,"family":"Claridge","given":"G.G.C.","email":"","affiliations":[],"preferred":false,"id":492261,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Campbell, I.B.","contributorId":40127,"corporation":false,"usgs":true,"family":"Campbell","given":"I.B.","email":"","affiliations":[],"preferred":false,"id":492260,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70098931,"text":"ofr20071047SRP075 - 2007 - Aeromagnetic search for Cenozoic magmatism over the Admiralty Mountains Block (East Antarctica)","interactions":[],"lastModifiedDate":"2014-03-19T11:49:59","indexId":"ofr20071047SRP075","displayToPublicDate":"2007-01-01T10:12:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-075","title":"Aeromagnetic search for Cenozoic magmatism over the Admiralty Mountains Block (East Antarctica)","docAbstract":"Cenozoic magmatic rocks of the Transantarctic Mountains provide an important window on the tectonic and \nmagmatic processes of the West Antarctic Rift System. Previous aeromagnetic investigations in northern Victoria Land \nhave delineated Cenozoic volcanic and intrusive complexes assigned to the McMurdo Volcanic Group and Meander \nIntrusives over the Transantarctic Mountains. We present a new aeromagnetic anomaly map for the region north of the \nMariner Glacier to study the extent and spatial distribution of these Cenozoic rocks over the previously unexplored \nAdmiralty Mountains. The new map shows that the Meander Intrusives are restricted to the coastal region between the \nMalta Plateau and the Daniell Peninsula. However, the McMurdo Volcanic Group rocks extend further inland, and may \ndelineate a hitherto unrecognised volcano-tectonic rift zone, extending as far north as the Trafalgar Glacier.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Society","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP075","usgsCitation":"Armadillo, E., Ferraccioli, F., Zunino, A., Bozzo, E., Rocchi, S., and Armienti, P., 2007, Aeromagnetic search for Cenozoic magmatism over the Admiralty Mountains Block (East Antarctica): U.S. Geological Survey Open-File Report 2007-1047-SRP-075, 4 p., https://doi.org/10.3133/ofr20071047SRP075.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":284213,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP075.PNG"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4bdee4b0b290850f09d5","contributors":{"authors":[{"text":"Armadillo","contributorId":128038,"corporation":true,"usgs":false,"organization":"Armadillo","id":535642,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"E.","contributorId":128276,"corporation":true,"usgs":false,"organization":"E.","id":535643,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ferraccioli, Fausto","contributorId":43591,"corporation":false,"usgs":true,"family":"Ferraccioli","given":"Fausto","email":"","affiliations":[],"preferred":false,"id":491741,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zunino, A.","contributorId":36046,"corporation":false,"usgs":true,"family":"Zunino","given":"A.","email":"","affiliations":[],"preferred":false,"id":491740,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bozzo, E.","contributorId":46001,"corporation":false,"usgs":true,"family":"Bozzo","given":"E.","email":"","affiliations":[],"preferred":false,"id":491743,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Rocchi, S.","contributorId":21063,"corporation":false,"usgs":true,"family":"Rocchi","given":"S.","email":"","affiliations":[],"preferred":false,"id":491739,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Armienti, P.","contributorId":81009,"corporation":false,"usgs":true,"family":"Armienti","given":"P.","email":"","affiliations":[],"preferred":false,"id":491744,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70094912,"text":"ofr20071047SRP065A - 2007 - Pan-African granulites of central Dronning Maud Land and Mozambique: A comparison within the East-African-Antarctic orogen","interactions":[],"lastModifiedDate":"2014-02-25T10:20:33","indexId":"ofr20071047SRP065A","displayToPublicDate":"2007-01-01T10:02:00","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-065","title":"Pan-African granulites of central Dronning Maud Land and Mozambique: A comparison within the East-African-Antarctic orogen","docAbstract":"Granulite-facies metamorphism is extensively reported in Late Neoproterozoic/Early Palaeozoic time during formation of the East-African-Antarctic orogen (EAAO). Metamorphic data acquired from the Pan-African orogen of central Dronning Maud Land (cDML) are compared with data from northern Mozambique. The metamorphic rocks of cDML are characterised by Opx±Grt-bearing gneisses and Sil+Kfs-bearing metapelites which indicate medium-P granulite-facies metamorphism. Peak conditions, which are estimated to 800-900ºC at pressures up to 1.0 GPa, were followed by near-isothermal decompression during late Pan-African extension and exhumation. Granulite-facies lithologies are widespread in northern Mozambique, and Grt+Cpx-bearing assemblages show that high-P granulite-facies conditions with PT reaching 1.55 GPa and 900ºC were reached during the Pan-African orogeny. Garnet is replaced by symplectites of Pl+Opx+Mag indicating isothermal decompression, and the subsequent formation of Pl+amphibole-coronas suggests cooling into amphibolite facies. It is concluded that high-T metamorphism was pervasive in EAAO in Late Neoproterozoic/Early Paleozoic time, strongly overprinting evidences of earlier metamorphic assemblages.","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/ofr20071047SRP065A","usgsCitation":"Engvik, A., Elevevold, S., Jacobs, J., Tveten, E., de Azevedo, S., and Njange, F., 2007, Pan-African granulites of central Dronning Maud Land and Mozambique: A comparison within the East-African-Antarctic orogen: U.S. Geological Survey Open-File Report 2007-1047-SRP-065, 5 p., https://doi.org/10.3133/ofr20071047SRP065A.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282736,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP065A.JPG"},{"id":282735,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp065/of2007-1047srp065.pdf"}],"otherGeospatial":"Antarctica;Queen Maud Land","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -18.83,-78.89 ], [ -18.83,-68.64 ], [ 50.14,-68.64 ], [ 50.14,-78.89 ], [ -18.83,-78.89 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6a98e4b0b2908510359b","contributors":{"authors":[{"text":"Engvik, A.K.","contributorId":77839,"corporation":false,"usgs":true,"family":"Engvik","given":"A.K.","email":"","affiliations":[],"preferred":false,"id":490937,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elevevold, S.","contributorId":13535,"corporation":false,"usgs":true,"family":"Elevevold","given":"S.","email":"","affiliations":[],"preferred":false,"id":490933,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jacobs, J.","contributorId":96999,"corporation":false,"usgs":true,"family":"Jacobs","given":"J.","affiliations":[],"preferred":false,"id":490938,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tveten, E.","contributorId":48476,"corporation":false,"usgs":true,"family":"Tveten","given":"E.","email":"","affiliations":[],"preferred":false,"id":490935,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"de Azevedo, S.","contributorId":69883,"corporation":false,"usgs":true,"family":"de Azevedo","given":"S.","email":"","affiliations":[],"preferred":false,"id":490936,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Njange, F.","contributorId":37644,"corporation":false,"usgs":true,"family":"Njange","given":"F.","email":"","affiliations":[],"preferred":false,"id":490934,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70093688,"text":"ofr20071047SRP043 - 2007 - East Antarctic ice-sheet dynamics between 5.2 and 0 Ma from a high-resolution terrigenous particle size record, ODP Site 1165, Prydz Bay-Cooperation Sea","interactions":[],"lastModifiedDate":"2014-02-11T10:19:26","indexId":"ofr20071047SRP043","displayToPublicDate":"2007-01-01T10:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1047-SRP-043","title":"East Antarctic ice-sheet dynamics between 5.2 and 0 Ma from a high-resolution terrigenous particle size record, ODP Site 1165, Prydz Bay-Cooperation Sea","docAbstract":"This paper discusses a 5.2-0 Ma high-resolution terrigenous particle size record recovered from a sediment \ndrift off East Antarctica. The particle size properties of Hole 1165B are interpreted in the context of previously acquired \ndata on a continental shelf to slope transect drilled by ODP Leg 188 in Prydz Bay and the Cooperation Sea. The new \ndata indicate that the Lambert ice stream stayed predominantly landward of the shelf break in the early Pliocene (5.2-3.5 \nMa) with periods of ice sheet recession on land. The middle Pliocene (3.5-3.1 Ma) is characterized as major ice \nexpansion during glacials with deposition of laminated clays from meltwater plumes on the continental rise, alternating \nwith periods of ice recession. A change in sedimentary facies and a decrease in sedimentation rates occurred at ~3.1 Ma \nindicating a more retreated Lambert Glacier. Between 2.5 and 1 Ma the ice stream was generally stable and had become \ncold-based with ice flow in a glacial trough extending to the shelf break. Three-four large pulses of coarse-grained \nglacigenic debris mark the record at ~1 Ma. These are interpreted as extensive calving due to decoupling of the marine \nterminus from its bed in response to Northern Hemisphere deglaciations and associated sea level rises.","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/ofr20071047SRP043","usgsCitation":"Passchier, S., 2007, East Antarctic ice-sheet dynamics between 5.2 and 0 Ma from a high-resolution terrigenous particle size record, ODP Site 1165, Prydz Bay-Cooperation Sea: U.S. Geological Survey Open-File Report 2007-1047-SRP-043, 4 p., https://doi.org/10.3133/ofr20071047SRP043.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282256,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP043.JPG"},{"id":282255,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp043/of2007-1047srp043.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":"53cd563ae4b0b290850f6cb4","contributors":{"authors":[{"text":"Passchier, S.","contributorId":15117,"corporation":false,"usgs":false,"family":"Passchier","given":"S.","email":"","affiliations":[],"preferred":false,"id":490148,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70094157,"text":"ofr20071047SRP048 - 2007 - Geology of the Terre Adélie Craton (135 – 146˚ E)","interactions":[],"lastModifiedDate":"2014-02-18T10:16:19","indexId":"ofr20071047SRP048","displayToPublicDate":"2007-01-01T09:53:00","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-048","title":"Geology of the Terre Adélie Craton (135 – 146˚ E)","docAbstract":"More than 15 years of field and laboratory investigations on samples from Terre Adélie to the western \npart of George V<sup>th</sup> Land (135 to 146°E) during the GEOLETA program allow a reassessment of the Terre Adélie \nCraton (TAC) geology. The TAC represents the largest exposed fragment of the East Antarctic Shield preserved from \nboth Grenville and Ross tectono-metamorphic events. Therefore it corresponds to a well-preserved continental \nsegment that developed from the Neoarchean to the Paleoproterozoic. Together with the Gawler Craton in South \nAustralia, the TAC is considered as part of the Mawson continent, i.e. a striking piece of the Rodinia Supercontinent. \nHowever, this craton represents one of the less studied parts of the East Antarctic Shield. The three maps presented \nhere clearly point out the extent of two distinct domains within the Terre Adélie Craton and suggest that the TAC was \nbuilt up through a polyphased evolution during the Neoarchean-Siderian (c.a. 2.5Ga) and the Statherian (c.a. 1.7Ga) \nperiods. These data support a complete re-assessment of the TAC geology and represent a valuable base for the \nunderstanding of global geodynamics changes during Paleoproterozoic times.","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/ofr20071047SRP048","usgsCitation":"Menot, R., Duclaux, G., Peucat, J., Rolland, Y., Guillot, S., Fanning, M., Bascou, J., Gapais, D., and Pecher, A., 2007, Geology of the Terre Adélie Craton (135 – 146˚ E): U.S. Geological Survey Open-File Report 2007-1047-SRP-048, 5 p., https://doi.org/10.3133/ofr20071047SRP048.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282463,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP048.JPG"},{"id":282462,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp048/of2007-1047srp048.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":"53cd5e70e4b0b290850fbb3e","contributors":{"authors":[{"text":"Menot, R.P.","contributorId":41738,"corporation":false,"usgs":true,"family":"Menot","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":490480,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Duclaux, G.","contributorId":67006,"corporation":false,"usgs":true,"family":"Duclaux","given":"G.","email":"","affiliations":[],"preferred":false,"id":490482,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Peucat, J.J.","contributorId":73438,"corporation":false,"usgs":true,"family":"Peucat","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":490483,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rolland, Y.","contributorId":30137,"corporation":false,"usgs":true,"family":"Rolland","given":"Y.","email":"","affiliations":[],"preferred":false,"id":490479,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Guillot, S.","contributorId":79401,"corporation":false,"usgs":true,"family":"Guillot","given":"S.","email":"","affiliations":[],"preferred":false,"id":490484,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fanning, M.","contributorId":10624,"corporation":false,"usgs":true,"family":"Fanning","given":"M.","email":"","affiliations":[],"preferred":false,"id":490477,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Bascou, J.","contributorId":60127,"corporation":false,"usgs":true,"family":"Bascou","given":"J.","email":"","affiliations":[],"preferred":false,"id":490481,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gapais, D.","contributorId":79798,"corporation":false,"usgs":true,"family":"Gapais","given":"D.","email":"","affiliations":[],"preferred":false,"id":490485,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Pecher, A.","contributorId":28162,"corporation":false,"usgs":true,"family":"Pecher","given":"A.","email":"","affiliations":[],"preferred":false,"id":490478,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
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