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Landform Evolution in the Dry Valleys and its implications for Miocene-Pliocene Climate Change in Antarctica
Entry ID:
NSF-ANT07-39452
Summary
Abstract:
This project seeks to answer a simple question: how old are potholes and related geomorphic features found in the uplands of the McMurdo Dry Valleys, Antarctica? Some research suggests that they are over ten million years old and date the growth of the East Antarctic Ice Sheet, the world's largest. However, some evidence suggests that these are young, erosional features that continuing to evolve to this day. This project uses cosmogenic nuclide dating to determine the age of the pothole floors. The results are important for determining the ice sheet?s history and interpreting the O-isotope record from the marine sediment cores, key records of global climate. Broader impacts include K12 outreach and incorporation of outcomes into university courses.
Related URL
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
Temporal Coverage
Start Date:
2008-06-01
Stop Date:
2009-05-31
Location Keywords
Science Keywords
ISO Topic Category
Data Set Progress
COMPLETE
Data Center
Personnel
Role:
INVESTIGATOR
Email:
sujoy at eps.harvard.edu
Contact Address:
Harvard University
City:
Cambridge
Province or State:
MA
Postal Code:
02138
Country:
US
Creation and Review Dates
DIF Creation Date:
2009-03-30
Last DIF Revision Date:
2009-04-02
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- Webmaster: Monica Holland
- Responsible NASA Official: Lola Olsen
- Last updated: May 2013
