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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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Advanced CORKs for ODP Drilling in the Nankai Trough: Sustained Observations
of Subsurface Pressures in an Accretionary Prism
| MARGINS Focus Area |
Seismogenic Zone |
| NSF Org |
OCE |
| Latest Amendment Date |
July 26, 2000 |
| Award Number |
0083156 |
| Award Instrument |
Standard Grant |
| Program Manager |
James F. Allan
OCE DIVISION OF OCEAN SCIENCES
GEO DIRECTORATE FOR GEOSCIENCES |
| Start Date |
October 1, 2000 |
| Expires |
September 30, 2003 (Estimated) |
| Expected Total Amount |
$319,719 (Estimated) |
| Investigator |
Keir Becker (Principal
Investigator current) |
| Sponsor |
U of Miami Sch Mar&Atmos
4600 Rickenbacker Causeway
Key Biscayne, FL 33149 |
| NSF Program |
5720 OCEAN DRILLING PROGRAM |
| Field Application |
0204000 Oceanography |
| Abstract |
Recommended project is for acquisition and instrumentation costs
for two Advanced Circulation Obviation Retrofit Kits (A-CORKs) that
will be installed on Ocean Drilling Program (ODP) Leg 196. These
will be used for sustained observations of subsurface fluid pressures
in three stratigraphic regions of the Nankai Trough subduction zone-
the oceanic basement of the subducting plate, the decollement between
the accretionary wedge and the subducting crust, and in major faults
within the accretionary wedge. The advanced CORKs use multiple packer
strings to independently seal off several regions of the borehole,
in contrast to the original CORK design that integrated fluid pressure
measurements over the entire borehole length. The A-CORKs will also
allow for eventual sampling of in-situ fluids. This proposal is
part of a larger, multi-national effort that includes Canadian and
ODP resources in designing and fabricating the A-CORKs, installation
of the A-CORKs and associated, Japanese-funded instrument strings
by the ODP JOIDES Resolution drillship, and related logging-while-drilling
(LWD) occurring in conjunction on the same cruise. Ship and submersible
operations for follow-up data recovery and instrument servicing
will be funded by the Japanese technology agency JAMSTEC. *** |
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