This proposal addresses the detailed examination of cumulate- textured and layered igneous rocks from a geologic environment not yet thoroughly evaluated in terms of cumulate processes. This project plans a comprehensive study of hundreds of Mauna Kea xenoliths from many cinder cones. The PIs will apply petrography, electron microprobe, ion microprobe, XRF, INA, and O-isotopes to develop models for crustal/cumulate processes, compositions of liquids that produced the cumulate rocks, relationships among the different rock types, and the attending crystal/crystal and crystal/melt fractionations for a closed igneous environment. The results should contribute to a better understanding of cumulate processes, and constrain future crystallization models for Hawaiian basaltic magmas.

Agency
National Science Foundation (NSF)
Institute
Division of Earth Sciences (EAR)
Type
Standard Grant (Standard)
Application #
9104927
Program Officer
John L. Snyder
Project Start
Project End
Budget Start
1991-08-15
Budget End
1994-07-31
Support Year
Fiscal Year
1991
Total Cost
$52,600
Indirect Cost
Name
North Carolina State University Raleigh
Department
Type
DUNS #
City
Raleigh
State
NC
Country
United States
Zip Code
27695