
NSF Org: |
EAR Division Of Earth Sciences |
Recipient: |
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Initial Amendment Date: | January 22, 1993 |
Latest Amendment Date: | January 22, 1993 |
Award Number: | 9218892 |
Award Instrument: | Standard Grant |
Program Manager: |
Christopher G. Maples
EAR Division Of Earth Sciences GEO Directorate for Geosciences |
Start Date: | March 1, 1993 |
End Date: | August 31, 1995 (Estimated) |
Total Intended Award Amount: | $49,285.00 |
Total Awarded Amount to Date: | $49,285.00 |
Funds Obligated to Date: |
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History of Investigator: |
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Recipient Sponsored Research Office: |
319 SHOWALTER HALL CHENEY WA US 99004-2445 (509)359-6567 |
Sponsor Congressional District: |
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Performance Congressional District: |
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Unique Entity Identifier (UEI): |
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Parent UEI: |
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NSF Program(s): | SCEC |
Primary Program Source: |
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Program Element Code(s): |
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Award Agency Code: | 4900 |
Fund Agency Code: | 4900 |
Assistance Listing Number(s): | 47.050 |
ABSTRACT
Extinction, which may be the ultimate fate of all species, has always held a special interest for geologists and biologists, and even legislators (e.g., Endangered Species Act). Extinction events, when a number of species become extinct over a geologically short period time, have always had historical significance to Earth scientists and evolutionary biologists, as they are conveniently used to divide up geologic time. In this project, PI and students will examine in detail one of the earliest extinction events, at the Lower-Middle Cambrian boundary, and help answer questions such as how sudden the event really was, what percentage of the fauna went extinct, and whether species began to decline in numbers prior to their extinction. The paleoenvironment in which these early taxa lived will also be reconstructed from the type of rock that now entombs them.
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