NSF Org:	EAR Division Of Earth Sciences
Recipient:	CALIFORNIA INSTITUTE OF TECHNOLOGY
Initial Amendment Date:	February 20, 2004
Latest Amendment Date:	December 7, 2007
Award Number:	0318518
Award Instrument:	Standard Grant
Program Manager:	Russell Kelz EAR  Division Of Earth Sciences GEO  Directorate for Geosciences
Start Date:	February 15, 2004
End Date:	January 31, 2009 (Estimated)
Total Intended Award Amount:	$0.00
Total Awarded Amount to Date:	$332,198.00
Funds Obligated to Date:	FY 2004 = $332,198.00
History of Investigator:	George Rossman (Principal Investigator) grr@gps.caltech.edu Edward Stolper (Co-Principal Investigator)
Recipient Sponsored Research Office:	California Institute of Technology 1200 E CALIFORNIA BLVD PASADENA CA  US  91125-0001 (626)395-6219
Sponsor Congressional District:	28
Primary Place of Performance:	California Institute of Technology 1200 E CALIFORNIA BLVD PASADENA CA  US  91125-0001
Primary Place of Performance Congressional District:	28
Unique Entity Identifier (UEI):	U2JMKHNS5TG4
Parent UEI:
NSF Program(s):	Instrumentation & Facilities
Primary Program Source:	app-0104
Program Reference Code(s):	0000, OTHR
Program Element Code(s):	158000
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.050

ABSTRACT

0318518
Rossman

This grant provides partial support for the acquisition of a new electron microprobe (EMP) at Caltech's Division of Geological and Planetary Sciences. The EMP will be equipped with five wavelength dispersive spectrometers with specialized spectrometer crystals for light element analytical capabilities, oil-free pumping system, energy dispersive spectrometer, cathodoluminescence spectrometer, high precision specimen stage, and digital imaging capabilities. A high vacuum carbon coater for sample preparation will also be acquired. The new EMP will replace an aging (15 yrs old) JEOL 733 Superprobe and will be immediately employed for ongoing research requiring high precision, microscale, elemental analysis of solid materials. Examples of research applications that will benefit from the new EMP include: studies of elemental portioning between silicate mineral and coexisting liquids in quenched experimental run products, petrologic characterization of meteorites, identification of chemically unzoned mineral grains for subsequent dating via (U-Th)/He geochronology, studies of hydrous components of mantle mineral phases, and studies of non-equilibrium and metastable synthetic materials.
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