| NSF Org: |
OPP Office of Polar Programs (OPP) |
| Recipient: |
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| Initial Amendment Date: | May 7, 2010 |
| Latest Amendment Date: | May 7, 2010 |
| Award Number: | 1039365 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Alexandra Isern
OPP Office of Polar Programs (OPP) GEO Directorate for Geosciences |
| Start Date: | August 28, 2009 |
| End Date: | February 29, 2012 (Estimated) |
| Total Intended Award Amount: | $41,015.00 |
| Total Awarded Amount to Date: | $41,015.00 |
| Funds Obligated to Date: |
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| History of Investigator: |
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| Recipient Sponsored Research Office: |
900 S NORMAL AVE CARBONDALE IL US 62901-4302 (618)453-4540 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
900 S NORMAL AVE CARBONDALE IL US 62901-4302 |
| Primary Place of
Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): | ANT Earth Sciences |
| Primary Program Source: |
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| Program Reference Code(s): |
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| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.078 |
ABSTRACT
This project studies the Permian-Triassic extinction event as recorded in sedimentary rocks from the Transantarctic Mountains of Antarctica. Two hundred and fifty million years ago most life on Earth was wiped out in a geologic instant. The cause is a subject of great debate. Researchers have identified a unique stratigraphic section near Shackleton glacier laid down during the extinction event. Organic matter from these deposits will be analyzed by density gradient centrifugation (DGC), which will offer detailed information on the carbon isotope composition. The age of these layers will be precisely dated by U/Pb-zircon-dating of intercalated volcanics. Combined, these results will offer detailed constraints on the timing and duration of carbon isotope excursions during the extinction, and offer insight into the coupling of marine and terrestrial carbon cycles.
The broader impacts of this project include graduate and undergraduate student research, K12 outreach and teacher involvement, and societal relevance of the results, since the P/T extinction may have been caused by phenomena such as methane release, which could accompany global warming.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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