Upper Mantle Shear Wave Velocity Structure beneath the Northern Transantarctic Mountains

Dataset Identification:

Resource Abstract: 
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.
Citation
Title  Upper Mantle Shear Wave Velocity Structure beneath the Northern Transantarctic Mountains
publication date 2017-04-20
cited responsible party - author
individual Name  Hansen, Samantha
organisation Name  University of Alabama, Tuscaloosa, AL, 35487, US
Contact information
Postal Address:
electronic Mail Address:  shansen@geo.ua.edu
Linkage for online resource
URL:  http://orcid.org/ORCID:0000-0001-7608-5715
protocol  ORCID
cited responsible party - publisher
organisation Name  U.S. Antarctic Program (USAP) Data Center
No contact information provided.
Topic Category:   geoscientificInformation
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Resource language:   eng
Resource progress code:   Complete
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Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
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Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
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Classification  unclassified
Format
Format name  
Format version  1
Resource extent
Extent description 
Transantarctic Mountains
Geographic Extent
Geographic Bounding Box
westBoundLongitude  153.327
eastBoundLongitude  165.120012
northBoundLatitude  -73.032547
southBoundLatitude  -76.237352
Credits: 
funderName:NSF:GEO:PLR:Antarctic Earth Sciences awardNumber:1148982 awardTitle:CAREER: Deciphering the Tectonic History of the Transantarctic Mountains and the Wilkes Subglacial Basin
point of contact - pointOfContact
individual Name  Hansen, Samantha
organisation Name  University of Alabama, Tuscaloosa, AL, 35487, US
Contact information
No address provided.
Linkage for online resource
URL:  http://orcid.org/ORCID:0000-0001-7608-5715
protocol  ORCID
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name  Landing Page
URL:  http://dx.doi.org/10.15784/601018
protocol  WWW:LINK-1.0-http--link
link function  information
Description  Link to DOI landing page or data facility landing page if no DOI is assigned.
Linkage for online resource
name  landing page
URL:  http://www.usap-dc.org/view/dataset/601018
protocol  WWW:LINK-1.0-http--link
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Metadata Information

Metadata data stamp:  2018-05-17
Resource Maintenance Information
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notes:  This metadata record was generated by an xslt transformation from a DataCite metadata record; The transform was created by Damian Ulbricht and Stephen M. Richard. 2017-11-15 these records include new IEDA keywords for geoportal facets Run on 2018-06-21T19:05:25-07:00
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organisation Name  Interdisciplinary Earth Data Alliance
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electronic Mail Address:  web@usap-dc.org
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URL:  http://www.usap-dc.org/static/imgs/header/usaplogo.png
link function  browseGraphic
Metadata scope code  dataset
Metadata hierarchy level name:  Dataset
Metadata language   eng
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:  2007
Metadata record identifier:  urn:ieda:metadataabout:10.15784-601018
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