NSF Org:	OCE Division Of Ocean Sciences
Recipient:	NEW MEXICO INSTITUTE OF MINING AND TECHNOLOGY
Initial Amendment Date:	November 18, 2005
Latest Amendment Date:	November 18, 2005
Award Number:	0451508
Award Instrument:	Standard Grant
Program Manager:	Rodey Batiza OCE  Division Of Ocean Sciences GEO  Directorate for Geosciences
Start Date:	November 15, 2005
End Date:	November 30, 2007 (Estimated)
Total Intended Award Amount:	$199,427.00
Total Awarded Amount to Date:	$199,427.00
Funds Obligated to Date:	FY 2006 = $0.00
History of Investigator:	Harold Tobin (Principal Investigator) htobin@uw.edu
Recipient Sponsored Research Office:	New Mexico Institute of Mining and Technology 801 LEROY PL SOCORRO NM  US  87801-4681 (575)835-5496
Sponsor Congressional District:	02
Primary Place of Performance:	New Mexico Institute of Mining and Technology 801 LEROY PL SOCORRO NM  US  87801-4681
Primary Place of Performance Congressional District:	02
Unique Entity Identifier (UEI):	HZJ2JZUALWN4
Parent UEI:
NSF Program(s):	OCEAN DRILLING PROGRAM
Primary Program Source:	app-0106
Program Reference Code(s):	OTHR, 0000
Program Element Code(s):	572000
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.050

ABSTRACT

Abstract

The PI team will acquire, process, and interpret a high-quality 3-D seismic reflection data volume in the Kumano Basin region south of Kii Peninsula, Japan. The 3D seismic survey will be carried out in April 2006 by PGS ship R/V Ramform Victory (Norwegian registry), jointly supported by the NSF and JAMSTEC. These data will define the fundamental geometry, history and physical properties of the multiple faults that compose the up-dip end of the seismogenic zone, many of which ruptured in the 1944 M 8.1 Tonankai earthquake. The proposed work is a major component of the integrated Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE), including the recently highly ranked shallow non-riser drilling and the deep riser drilling planned through the Integrated Ocean Drilling Program (IODP). With ground-truth from drilling and associated borehole geophysical experiments, this 3D seismic volume will provide unprecedented illumination of a plate boundary fault system to visualize its geometry, history, and associated rock properties, as it evolves down dip into a seismogenic zone. Furthermore, 3D imaging and seismic attribute mapping are essential components for refining drill site locations and for detailed planning for drilling and casing operations in support of the most ambitious scientific ocean drilling operation ever conceived. This project is a collaborative effort among four U.S. and two Japanese institutions to contract a seismic company to collect and provide preliminary processing of an ~20x80 km 3-D seismic reflection grid, along a transect from the Kumano Basin to the frontal thrust of the Nankai accretionary prism. The study encompasses a number of broader impacts, including the societal benefit of better understanding the origin of dangerous subduction zone thrust earthquakes.

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