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This site is maintained by the MARGINS Office. Please share your comments and suggestions with us.
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Browse MARGINS-related
awards in reverse chronological order after start
date (most recent first):
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Observational Constraints on Melt-Rock Reactions during Melting of
the Upper Mantle
| MARGINS Focus Area |
Subduction Factory |
| NSF Org |
OCE |
| Latest Amendment Date |
March 16, 2001 |
| Award Number |
0096533 |
| Award Instrument |
Continuing grant |
| Program Manager |
Rodey Batiza
OCE DIVISION OF OCEAN SCIENCES
GEO DIRECTORATE FOR GEOSCIENCES |
| Start Date |
May 1, 2001 |
| Expires |
May 31, 2003 (Estimated) |
| Expected Total Amount |
$95,800 (Estimated) |
| Investigator |
Craig C. Lundstrom (Principal
Investigator current) |
| Sponsor |
U of Ill Urbana-Champaign
801 South Wright Street
Champaign, IL 61820 |
| NSF Program |
1620 MARINE GEOLOGY AND GEOPHYSICS |
| Field Application |
0204000 Oceanography |
| Abstract |
Recent work has indicated that dunite bodies in ophiolites, and
presumably also in layered ocean crust, represent melt transport
conduits through which basaltic melt has migrated and interacted
chemically. In this proposal, Lundstrom proposes to test two aspects
of this general hypothesis. First, he proposes to test the hypothesis
that the melts that moved through the dunites are in fact very enriched
and produced by melting of mafic heterogenieties in the mantle.
He proposes to do this by measuring the isotopic compositions of
oxygen and lithium in mantle spinels from ophiolite samples and
mantle xenoliths. A second test, using samples from the Trinity
ophiolite, is to determine whether there exist gradients in lithium
and other incompatible element isotopes as a function of distance
from dunite bodies. |
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