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Collaborative Research: Causes of Isotopic Variability in Basalts from Southern California: Isotopic and ExperimentalStudies

Collaborative Research: Causes of Isotopic Variability in Basalts from Southern California: Isotopic and ExperimentalStudies
合作研究：南加州玄武岩同位素变异的原因：同位素和实验研究
批准号：
9204961
负责人：
Allen Glazner
金额：
$8.4万
依托单位：
University of North Carolina at Chapel Hill
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1992
资助国家：
美国
项目状态：
已结题
起止时间：
1992-07-01 至 1994-12-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9204961&HistoricalAwards=false
关键词：
CollaborativeResearchCausesIsotopicVariability

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The purpose of this study is to determine how much isotopic variability in basalts arises in the mantle, and how much is a result of crustal interaction. It will consist of (1) an isotopic survey of upper mantle and crustal basalt-borne xenoliths, (2) detailed geochemical studies at volcanoes that show large variability in isotope ratios, (3) textural and microprobe studies of textural disequilibrium, in order to test for the mixing predicted by isotope studies, and (4) experimental studies of interaction between basalt magma and crustal mantle xenoliths. A successful outcome of this research should shed considerable light on the chemical nature of the mantle of the southwest United States.
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  • 项目类别：
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