Integrating Geomorphological and Paleoecological Studies to Reconstruct Neogene Environments of the Transantarctic Mountains
Entry ID: NSF-ANT07-39693

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Summary
Abstract: This project studies the last vestiges of life in Antarctica from exceptionally well-preserved fossils of tundra life--mosses, diatoms, ostracods, Nothofagus leaves, wood, and insect remains recently discovered in ancient lake sediments from the McMurdo Dry Valleys. The area will be studied by an interdisciplinary team to elucidate information about climate and biogeography. These deposits offer unique and direct information about the characteristics of Antarctica during a key period in its history, the time when it was freezing. This information is critical for correlation with indirect proxies, such as though obtained from drill cores, for climate and state of the ice sheet. The results will also help understand the origin and migration of similar organisms found in South America, India and Australia. In terms of broader impacts, this project supports an early career researcher, undergraduate and graduate student research, various forms of outreach to K12 students, and extensive international collaboration. The work also has societal relevance in that the outcomes will offer direct constraints on Antarctica's ice sheet during a time with atmospheric CO2 contents similar to those of the earth in the coming centuries, and thus may help predictive models of sea level rise.

Related URL
Link: VIEW RELATED INFORMATION
Description: NSF Award Abstract #0739693


Geographic Coverage
 N: -77.0 S: -78.0  E: 162.0  W: 160.0

Temporal Coverage
Start Date: 2008-07-15
Stop Date: 2011-06-30


Location Keywords
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR
VERTICAL LOCATION > LAND SURFACE


Science Keywords
SOLID EARTH >GEOMORPHIC LANDFORMS/PROCESSES >GLACIAL LANDFORMS    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION


Project
NSF/PLR >Division of Polar Programs, National Science Foundation    [Information]


Data Set Progress
IN WORK


Data Center
Data Coordination Center, United States Antarctic Program    [Information]
Data Center URL: http://www.usap-data.org/
Dataset ID: NSF-ANT07-39693

Data Center Personnel
Name: ROBERT A. ARKO
Email: info at usap-data.org
Contact Address:
Lamont-Doherty Earth Observatory
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA


Personnel
ALLAN ASHWORTH
Role: INVESTIGATOR
Email: allan.ashworth at ndsu.edu
Contact Address:
North Dakota State University
City: Fargo
Province or State: ND
Postal Code: 58102
Country: US


ADAM LEWIS
Role: INVESTIGATOR
Email: adam.lewis at ndsu.edu
Contact Address:
North Dakota State University
City: Fargo
Province or State: ND
Postal Code: 58102
Country: US



Creation and Review Dates
DIF Creation Date: 2009-06-22
Last DIF Revision Date: 2009-06-25

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