USAP-DC

[{"dataset_id": "601018", "west": 153.327, "east": 165.120012, "south": -76.237352, "north": -73.032547, "gid": 536, "geometry": "0101000020E6100000B60E0EF626E7634024473A03A3A852C0", "cross_dateline": false, "bounds_geometry": "0103000020E610000001000000290000005839B4C8762A63404E250340154252C09EFD929E335063404E250340154252C0E4C17174F07563404E250340154252C02A86504AAD9B63404E250340154252C0704A2F206AC163404E250340154252C0B60E0EF626E763404E250340154252C0FDD2ECCBE30C64404E250340154252C04397CBA1A03264404E250340154252C0895BAA775D5864404E250340154252C0CF1F894D1A7E64404E250340154252C015E46723D7A364404E250340154252C015E46723D7A36440ACC5A700985652C015E46723D7A364400A664CC11A6B52C015E46723D7A364406806F1819D7F52C015E46723D7A36440C6A69542209452C015E46723D7A3644024473A03A3A852C015E46723D7A3644082E7DEC325BD52C015E46723D7A36440DF878384A8D152C015E46723D7A364403D2828452BE652C015E46723D7A364409BC8CC05AEFA52C015E46723D7A36440F96871C6300F53C0CF1F894D1A7E6440F96871C6300F53C0895BAA775D586440F96871C6300F53C04397CBA1A0326440F96871C6300F53C0FDD2ECCBE30C6440F96871C6300F53C0B60E0EF626E76340F96871C6300F53C0704A2F206AC16340F96871C6300F53C02A86504AAD9B6340F96871C6300F53C0E4C17174F0756340F96871C6300F53C09EFD929E33506340F96871C6300F53C05839B4C8762A6340F96871C6300F53C05839B4C8762A63409BC8CC05AEFA52C05839B4C8762A63403D2828452BE652C05839B4C8762A6340DF878384A8D152C05839B4C8762A634082E7DEC325BD52C05839B4C8762A634024473A03A3A852C05839B4C8762A6340C6A69542209452C05839B4C8762A63406806F1819D7F52C05839B4C8762A63400A664CC11A6B52C05839B4C8762A6340ACC5A700985652C05839B4C8762A63404E250340154252C0"}]

{"@context": "https://schema.org/", "@type": "Dataset", "@id": "doi:10.15784/601018", "additionalType": ["geolink:Dataset", "vivo:Dataset"], "name": "Upper Mantle Shear Wave Velocity Structure beneath the Northern Transantarctic Mountains", "description": "Using data from the Transantarctic Mountains (TAMs) Northern Network, the shear wave velocity structure beneath the northern TAMs was investigated with surface wave tomography. Rayleigh wave phase velocities were calculated using a two-plane wave approximation and were then inverted for shear velocity structure. The resulting model shows a low velocity zone (~4.24 km/s) at ~160 km depth offshore and adjacent to Mt. Melbourne that extends inland and vertically upwards to ~100 km depth beneath the northern TAMs and Victoria Land. Another low velocity zone (~4.16-4.24 km/s) is also seen at ~150 km depth beneath Ross Island, and relatively slow velocities (~4.24-4.32 km/s) along the Terror Rift connect the two low velocity zones. This structure has been interpreted to reflect rift-related decompression melting along the TAMs front, which would provide thermal buoyancy to uplift the mountain range.", "citation": "Hansen, S. (2017) \"Upper Mantle Shear Wave Velocity Structure beneath the Northern Transantarctic Mountains\" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601018.", "datePublished": "2017-04-20", "keywords": ["Antarctica", "Geology/Geophysics - Other", "Model", "Seismology", "Solid Earth", "Tomography", "Transantarctic Mountains"], "creator": [{"@type": "Person", "additionalType": "geolink:Person", "name": "Hansen, Samantha", "email": "shansen@geo.ua.edu", "affiliation": {"@type": "Organization", "name": "University of Alabama"}}], "distribution": [{"@type": "DataDownload", "additionalType": "http://www.w3.org/ns/dcat#DataCatalog", "encodingFormat": "text/xml", "name": "ISO Metadata Document", "url": "https://www.usap-dc.org/metadata/isoxml/601018iso.xml", "contentUrl": "/dataset/filename"}, {"@type": "DataDownload", "@id": "http://dx.doi.org/10.15784/601018", "additionalType": "dcat:distribution", "url": "http://dx.doi.org/10.15784/601018", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}, {"@type": "DataDownload", "@id": "https://www.usap-dc.org/view/dataset/601018", "additionalType": "dcat:distribution", "url": "https://www.usap-dc.org/view/dataset/601018", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}], "identifier": {"@type": "PropertyValue", "propertyID": "https://registry.identifiers.org/registry/doi", "value": "doi:10.15784/601018", "url": "https://doi.org/10.15784/601018"}, "contributor": [{"@type": "Role", "roleName": "credit", "description": "funderName:NSF:GEO:PLR:Antarctic Earth Sciences awardNumber:1148982 awardTitle:CAREER: Deciphering the Tectonic History of the Transantarctic Mountains and the Wilkes Subglacial Basin"}], "license": [{"@type": "CreativeWork", "URL": "https://creativecommons.org/licenses/by-nc/4.0/", "name": "MD_Constraints", "description": "useLimitation: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0]."}, {"@type": "CreativeWork", "name": "MD_LegalConstraints", "description": "accessConstraints: license. otherConstraints: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0]."}, {"@type": "CreativeWork", "name": "MD_SecurityConstraints", "description": "classification: "}], "publisher": {"@type": "Organization", "name": "U.S. Antarctic Program (USAP) Data Center"}, "spatialCoverage": [{"@type": "Place", "geo": {"@type": "GeoShape", "box": "-76.237352, 153.327, -73.032547, 165.120012"}}]}

Upper Mantle Shear Wave Velocity Structure beneath the Northern Transantarctic Mountains Data DOI: https://doi.org/10.15784/601018 Cite as Hansen, S. (2017) "Upper Mantle Shear Wave Velocity Structure beneath the Northern Transantarctic Mountains" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601018. AMD - DIF Record(s) USAP-1148982_1 Abstract Using data from the Transantarctic Mountains (TAMs) Northern Network, the shear wave velocity structure beneath the northern TAMs was investigated with surface wave tomography. Rayleigh wave phase velocities were calculated using a two-plane wave approximation and were then inverted for shear velocity structure. The resulting model shows a low velocity zone (~4.24 km/s) at ~160 km depth offshore and adjacent to Mt. Melbourne that extends inland and vertically upwards to ~100 km depth beneath the northern TAMs and Victoria Land. Another low velocity zone (~4.16-4.24 km/s) is also seen at ~150 km depth beneath Ross Island, and relatively slow velocities (~4.24-4.32 km/s) along the Terror Rift connect the two low velocity zones. This structure has been interpreted to reflect rift-related decompression melting along the TAMs front, which would provide thermal buoyancy to uplift the mountain range. Creator(s): Hansen, Samantha Date Created: 2017-04-20 Repository: USAP-DC (current) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: 153.327, East: 165.120012, South: -76.237352, North: -73.032547 Award(s) NSF 1148982 Version: 1 Related Project(s) CAREER: Deciphering the Tectonic History of the Transantarctic Mountains and the Wilkes Subglacial Basin References Graw, J.H., A.N. Adams, S.E. Hansen, D.A. Wiens, L. Hackworth, and Y. Park, (2016). Upper mantle shear wave velocity structure beneath northern Victoria Land, Antarctica: Volcanism and uplift in the northern Transantarctic Mountains, Earth Planet. Sci. Lett., 449, 48-60, doi:10.1016/j.epsl.2016.05.026. (doi:10.1016/j.epsl.2016.05.026) Keywords Antarctica Geology/Geophysics - Other Model Seismology Solid Earth Tomography Transantarctic Mountains