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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

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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.
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Description: Original data submitted.

Description: NSF Award Abstract #0739452
Geographic Coverage
Spatial coordinates   
  N: -76.0   S: -78.0   E: 163.0   W: 161.0

Temporal Coverage
Start Date: 2008-06-01
Stop Date: 2009-05-31
ISO Topic Category
Data Set Progress
Data Center
United States Antarctic Program Data Center Supplemental Info
Data Center URL:
Dataset ID: NSF-ANT07-39452

Data Center Personnel
Email: info at
Contact Address:
Lamont-Doherty Earth Observatory
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA
Email: sujoy at
Contact Address:
Harvard University
City: Cambridge
Province or State: MA
Postal Code: 02138
Country: US
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2009-03-30
Last DIF Revision Date: 2016-01-27

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