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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
Awards in reverse chronological order after start
date (most recent first):
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MARGINS: Laboratory Experiments on 3-D Circulation and Temperature
Distribution in Subduction Zones
| MARGINS Focus Area |
Subduction Factory |
| NSF Org |
OCE |
| Latest Amendment Date |
August 20, 2001 |
| Award Number |
0105456 |
| Award Instrument |
Standard Grant |
| Program Manager |
Rodey Batiza
OCE DIVISION OF OCEAN SCIENCES
GEO DIRECTORATE FOR GEOSCIENCES |
| Start Date |
August 15, 2001 |
| Expires |
July 31, 2003 (Estimated) |
| Expected Total Amount |
$143,480 (Estimated) |
| Investigator |
Christopher R. Kincaid
(Principal Investigator current) |
| Sponsor |
U of Rhode Island
Kingston, RI 02881 |
| NSF Program |
1620 MARINE GEOLOGY AND GEOPHYSICS |
| Field Application |
0204000 Oceanography |
| Abstract |
This laboratory study of subduction is motivated by recent seismic
and geochemical advances on understanding of subduction and mantle
flow attending subduction. The PI proposes laboratory experiments
similar to those he has done for ridges and plumes, to investigate
subduction processes. There will be four types of analog lab experiments:
1) studies aimed at understanding longitudinal subduction vs. rollback
(slab sinking), 2) experiments to study the role of rollback-style
subduction on back arc basin spreading and plate motion, 3) experiments
to look at the effects of oscillating longitudinal and rollback
subduction on the thermal structure of the slab and wedge, and 4)
the effects of this oscillation on generation of mantle diapirs
in the wedge region. All these experiments have relevance to the
processes being studied in the MARGINS program. Part of the work
will be done at Australian National University (ANU) with Ross Griffiths,
where Kincaid will spend a one-year sabbatical. This will take advantage
of the excellent lab facilities available at ANU. |
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