NSF Org:	EAR Division Of Earth Sciences
Recipient:	UNIVERSITY OF ALABAMA
Initial Amendment Date:	July 5, 1994
Latest Amendment Date:	January 7, 1997
Award Number:	9405994
Award Instrument:	Standard Grant
Program Manager:	Maryellen Cameron EAR  Division Of Earth Sciences GEO  Directorate for Geosciences
Start Date:	July 1, 1994
End Date:	June 30, 1997 (Estimated)
Total Intended Award Amount:	$105,000.00
Total Awarded Amount to Date:	$105,000.00
Funds Obligated to Date:	FY 1994 = $105,000.00
History of Investigator:	W. Stone (Principal Investigator) C. Michael Lesher (Co-Principal Investigator)
Recipient Sponsored Research Office:	University of Alabama Tuscaloosa 801 UNIVERSITY BLVD TUSCALOOSA AL  US  35401 (205)348-5152
Sponsor Congressional District:	07
Primary Place of Performance:	University of Alabama Tuscaloosa 801 UNIVERSITY BLVD TUSCALOOSA AL  US  35401
Primary Place of Performance Congressional District:	07
Unique Entity Identifier (UEI):	RCNJEHZ83EV6
Parent UEI:	RCNJEHZ83EV6
NSF Program(s):	Petrology and Geochemistry
Primary Program Source:	app-0194
Program Reference Code(s):	OTHR, 0000
Program Element Code(s):	157300
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.050

ABSTRACT

9405994 Stone The goal of this study is to establish the physical volcanology, geochemistry, and petrogenesis of selected komatiitic successions in the Abitibi-Pontiac region of the Superior Province. The project will involve: 1) the delineation of volcanic facies in outcrop and diamond drill core in key localities; 2) analysis of whole-rock major and trace elements (including rare-earth, high field-strength, and platinum-group elements) in selected samples; 3) analysis of relict igneous minerals (silicates, oxides, sulfides, and platinum-group minerals) by X-ray emission spectrometry; 4) analysis of Os isotopes by negative thermal ionization mass spectrometry at the Australian National University; and 5) analysis of Nd and Hf isotopes. This study will provide important constraints on the geodynamic settings of the Abitibi and Pontiac greenstone belts, and contribute greatly to our understanding of the petrogenesis of komatiites and the development of Archean greenstone belts.

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