Erosion History and Sediment Provenance of East Antarctica from Multi-method Detrital Geo- and Thermochronology


Dataset Identification:

Resource Abstract:
Abstract: Much of the inventory of East Antarctic bedrock geochronology, as well as a record of its erosional history, is preserved in Cenozoic sediments around its margin. This project is to use these sediments to understand their sub-ice provenance and the erosional history of the shield by measuring ages of multiple geo- and thermochronometers on single detrital crystals and on multiple crystals in detrital clasts (U/Pb, fission-track, and (U-Th)/He dating of zircon and apatite, and 40Ar/39Ar dating of hornblende, mica, and feldspar). The combination of multi-chronometer ages in single grains and clasts provides a powerful fingerprint of bedrock sources, allowing us to trace provenance in Eocene fluvial sandstones through Quaternary diamicts around the margin. Multiple thermochronometric (cooling) ages in the same grains and clasts also allows us to interpret the timing and rates of erosion from these bedrock sources. Delineating a distribution of bedrock age units, their sediment transport connections, and their erosional histories over the Cenozoic, will in turn allow us to test tectonic models bearing on: (1) the origin of the Gamburtsev Subglacial Mountains, (2) fluvial and topographic evolution, and (3) the history of glacial growth and erosion.
Citation
Title  Erosion History and Sediment Provenance of East Antarctica from Multi-method Detrital Geo- and Thermochronology
publication date 2012
cited responsible party - author
individual Name  Gehrels, George
organisation Name  University of Arizona, Tucson, AZ, 85721, US
Contact information
Postal Address:
electronic Mail Address: ggehrels@email.arizona.edu
cited responsible party - author
individual Name  Reiners, Peter
organisation Name  University of Arizona, Tucson, AZ, 85721, US
Contact information
Postal Address:
electronic Mail Address: reiners@u.arizona.edu
Linkage for online resource
URL: http://orcid.org/ORCID:0000-0001-7240-2373
protocol  ORCID
cited responsible party - author
individual Name  Thompson, Stuart
organisation Name  University of Arizona, Tucson, AZ, 85721, US
Contact information
Postal Address:
electronic Mail Address: thomson@email.arizona.edu
cited responsible party - publisher
organisation Name  U.S. Antarctic Program (USAP) Data Center
No contact information provided.
Topic Category:   geoscientificInformation
Keywords:
Resource language:   eng
Resource progress code:   Complete
Constraints on resource usage:
Constraints
Use limitation statement:
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
Constraints on resource usage:
Legal Constraints
Access Constraints   license
Other constraints
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
Constraints on resource usage:
Security Constraints
Classification  unclassified
Resource extent
Extent description
Gamburtsev Mountains; Prydz Bay
Geographic Extent
Geographic Bounding Box
westBoundLongitude  61.9
eastBoundLongitude  75.08
northBoundLatitude  -67.28
southBoundLatitude  -73.7
Resource extent
Temporal Extent
2009-06-15 2012-05-31
Credits:
funderName:NSF:GEO:PLR:Antarctic Earth Sciences awardNumber:0838722 awardTitle:Collaborative Research: Erosion History and Sediment Provenance of East Antarctica from Multi-method Detrital Geo- and Thermochronology
point of contact - pointOfContact
individual Name  Gehrels, George
organisation Name  University of Arizona, Tucson, AZ, 85721, US
No contact information provided.
Back to top:

Resource distribution information

Digital Transfer Options
Linkage for online resource
name  Landing Page
URL: http://dx.doi.org/10.15784/600093
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/600093
protocol  WWW:LINK-1.0-http--link
link function  information
Description  Link to a web page related to the resource.
Back to top

Metadata Information

Metadata data stamp:  2018-05-17
Resource Maintenance Information
maintenance or update frequency:
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 2018-06-21T19:05:24-07:00
Metadata contact - pointOfContact
organisation Name  Interdisciplinary Earth Data Alliance
Contact information
Postal Address:
electronic Mail Address: web@usap-dc.org
Linkage for online resource
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:10.15784-600093
Back to top

Metadata record format is ISO19139 XML (MD_Metadata)