NSF Org:	EAR Division Of Earth Sciences
Recipient:	TEXAS A & M RESEARCH FOUNDATION
Initial Amendment Date:	May 12, 2005
Latest Amendment Date:	May 12, 2005
Award Number:	0454525
Award Instrument:	Standard Grant
Program Manager:	Gregory Anderson greander@nsf.gov  (703)292-4693 EAR  Division Of Earth Sciences GEO  Directorate for Geosciences
Start Date:	June 1, 2005
End Date:	May 31, 2008 (Estimated)
Total Intended Award Amount:	$0.00
Total Awarded Amount to Date:	$119,982.00
Funds Obligated to Date:	FY 2005 = $119,982.00
History of Investigator:	Judith Chester (Principal Investigator) chesterj@tamu.edu Frederick Chester (Co-Principal Investigator)
Recipient Sponsored Research Office:	Texas A&M Research Foundation 400 HARVEY MITCHELL PKWY S STE 300 COLLEGE STATION TX  US  77845-4375 (979)862-6777
Sponsor Congressional District:	10
Primary Place of Performance:	Texas A&M University 400 HARVEY MITCHELL PKY S STE 300 COLLEGE STATION TX  US  77845-4375
Primary Place of Performance Congressional District:	10
Unique Entity Identifier (UEI):	EQH8NQ4AXFT7
Parent UEI:
NSF Program(s):	EARTHSCOPE-SCIENCE UTILIZATION
Primary Program Source:	app-0105
Program Reference Code(s):	OTHR, 0000
Program Element Code(s):	017F00
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.050

ABSTRACT

0454525
Chester


The scientific objective of SAFOD is to understand the physical and chemical processes of
deformation and earthquake generation within an active, plate-bounding fault. Comprehensive
understanding will be possible only if the structure and geochemistry of the fault zone are
thoroughly documented and integrated with other data. This collaborative effort will characterize
the composition, structure and deformation mechanisms of the San Andreas fault at the
Observatory. Observations of core and cuttings from the pilot hole and first two phases of drilling
(2004-2005), and of samples from fault exposures near the drill site, will be integrated with
geophysical and hydrologic data presented in other SAFOD studies to address key questions
regarding structure, physical properties and mechanics of the fault, and to test hypotheses of
earthquake rupture dynamics, energy balance, and fault weakening. Work includes determining
fault rock lithology, and distributions and orientations of fractures, secondary faults, veins, and
particle sizes, and targeting key structures for detailed microstructure, mineralogy, and
geochemistry analyses.

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