|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
This site is maintained by the MARGINS Office. Please share your comments and suggestions with us.
|
|
|
Browse MARGINS-related
awards in reverse chronological order after start
date (most recent first):
|
|
|
 |
3-D Seismic Investigation of the Sediment-to-Rock Transition and Its
Relationship to Nankai Subduction Seismicity: U.S.-Japan Collaborative
Program
| MARGINS Focus Area |
Seismogenic Zone |
| NSF Org |
OCE |
| Latest Amendment Date |
September 15, 1998 |
| Award Number |
9802295 |
| Award Instrument |
Standard Grant |
| Program Manager |
Bruce T. Malfait
OCE DIVISION OF OCEAN SCIENCES
GEO DIRECTORATE FOR GEOSCIENCES |
| Start Date |
September 15, 1998 |
| Expires |
August 31, 2002 (Estimated) |
| Expected Total Amount |
$805,500 (Estimated) |
| Investigator |
Gregory F. Moore (Principal
Investigator current)
Julia K. Morgan (Co-Principal Investigator current) |
| Sponsor |
U of Hawaii Manoa
2530 Dole Street
Honolulu, HI 96822 |
| NSF Program |
5720 OCEAN DRILLING PROGRAM |
| Field Application |
0204000 Oceanography |
| Abstract |
This award will support a seismic reflection, refraction and passive
seismicity program to study underthrusting of oceanic crust along
the Nankai Trough off the east coast of Japan. The primary feature
to be examined in this experiment is the subduction thrust fault
from its aseismic zone in the Trough (trench) to a depth of at least
15 kilometers beneath the continental margin where the thrust is
marked by significant seismic activity. The goal of the study is
to examine changes in physical properties along the thrust as it
changes from aseismic to seismic expression. Understanding this
transition from compaction and aseismic slip to brittle failure
is a major unknown in understanding lithospheric consumption and
earthquake dynamics. This Nankai seismogenic zone marks the location
of major destructive earthquakes along the Japanese margin. The
project is a collaborative experiment. United State scientists will
be responsible for acquiring and interpreting 3-dimensional seismic
reflection data from the thrust fault and accreting margin. Japanese
colleagues will be responsible for deploying ocean bottom seismometers
for seismic refraction and passive seismicity studies. In addition
t the basic scientific interpretation to be derived from the data,
the experiment is critical to the development of the MARGINS initiative
and will provide necessary site location data for future drilling
by the international Ocean Drilling Program. *** |
|
