| NSF Org: |
EAR Division Of Earth Sciences |
| Recipient: |
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| Initial Amendment Date: | August 23, 2004 |
| Latest Amendment Date: | June 17, 2008 |
| Award Number: | 0451952 |
| Award Instrument: | Continuing Grant |
| Program Manager: |
Leonard E. Johnson
EAR Division Of Earth Sciences GEO Directorate for Geosciences |
| Start Date: | July 20, 2004 |
| End Date: | July 31, 2009 (Estimated) |
| Total Intended Award Amount: | $132,765.00 |
| Total Awarded Amount to Date: | $179,489.00 |
| Funds Obligated to Date: |
FY 2005 = $23,786.00 FY 2006 = $71,597.00 FY 2007 = $29,979.00 FY 2008 = $31,376.00 |
| History of Investigator: |
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| Recipient Sponsored Research Office: |
3720 S FLOWER ST FL 3 LOS ANGELES CA US 90033 (213)740-7762 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
3720 S FLOWER ST FL 3 LOS ANGELES CA US 90033 |
| 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): | CONTINENTAL DYNAMICS PROGRAM |
| Primary Program Source: |
app-0105 app-0106 app-0107 01000809DB NSF RESEARCH & RELATED ACTIVIT |
| 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): | 47.050 |
ABSTRACT
0409754
Becker
This project involves a study of the Hellenic subduction system, one of several young subduction systems within the Mediterranean region that are characterized by extension of upper plate lithosphere and roll-back of the trench away from the over-riding plate. Such subduction systems are thought to be driven primarily by the presence of a negatively buoyant slab. The Hellenic subduction system exhibits large variations in subduction rate and in the density of subducted lithosphere, in space and in time, as slow subduction of continental lithosphere along the entire belt was replaced by rapid subduction of oceanic lithosphere along the southern portion of the subduction boundary at ~8 Ma. Thus it provides an excellent opportunity to quantify the relationships among slab density and geometry, subduction rate, deformation of upper plate lithosphere, and the dynamic interactions between the slab and the surrounding mantle.
Specifically, the PIs will carry out a multidisciplinary study consisting of geologic mapping, isotopic dating, paleomagnetic studies, passive seismic studies, and theoretical and analog modeling of subduction processes. Through better documentation of magnitudes, rates, timing and geometry of this subduction system, the PIs aim at a fundamental understanding of the dynamic processes that control subduction in the Hellenic system and the way in which these processes are expressed at the surface.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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