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 National Science
Foundation Award #9019247 |
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Antarctic Marine Heat Flow
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| Investigator(s): |
Lawrence Lawver (PI)
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| Sponsor: |
University of Texas at Austin, TX 78713 5124716424
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| Start Date/Expiration Date |
1991-04-01 to 1995-03-31 (amended 1994-01-31) |
| Awarded Amount to Date: |
$335,339 |
| Abstract: Major progress has been made with respect to our understanding of the tectonic evolution of the Antarctic Plate. Paleomagnetic data, marine magnetic anomaly identifications, Geosat-derived tectonic lineations, heat flow derived seafloor ages and mathematical solutions for plate motions around triple junctions have all contributed to a better model for the tectonic evolution of the circum- Antarctic region. Even so, major problems still exist with respect to the Mesozoic to Recent tectonic evolution of the Antarctic continental margin which can be tackled using heat flow measurements. This award supports the study of a tectonic problem that heat flow can address, the determination of the age of the Powell Basin at the end of the West Antarctic Peninsula and its relationship to the opening of Drake's Passage. Specifically, heat flow measurement will be used to study the age and mode of crustal extension of the Powell Basin, where standard age determination fails and heat flow is the only method that can be used to date its opening. |
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| NSF Org: |
OPP - Office of Polar Programs |
| Award Number: |
9019247 |
| Award Instrument: |
Continuing grant |
| Program Manager: |
Scott Borg
OPP Office of Polar Programs
O/D OFFICE OF THE DIRECTOR
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| NSF Program(s): |
ANTARCTIC GEOLOGY & GEOPHYSICS, ANTARCTIC GEOLOGY & GEOPHYSICS
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| Field Application(s): |
Geological Sciences, Polar Programs-Related |
| Program Reference Code(s): |
EARTH SYSTEM HISTORY, 1304
RIDGE INTERDISC GLOBAL EXPERIMENTS, 1319
UNASSIGNED, 0000 |
| Program Element Code(s): |
5112
, 5112
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