Fine-Scale Magmatic Processes at Superfast Spreading: EPR 17o-19o-S
Fine-Scale Magmatic Processes at Superfast Spreading: EPR 17o-19o-S
批准号:
9415989
负责人:
John Sinton
金额:
$10.25万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1995
资助国家:
美国
项目状态:
已结题
起止时间:
1995-11-15 至 1998-10-31
中文摘要
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英文摘要
9415989 Sinton This work is the combined effort of three investigators to analyze rocks collected during a dive program that was conducted on the East Pacific Rise between 17 and 19 degrees S in December 1993. The rocks are from the ridge axis, from an abandoned ridge a few kilometers from the active ridge and from nearby seamounts. The purpose in analyzing the rocks is to determine the frequency and chemical variability on this very fast spreading ridge. They will also review dive tapes and photographs to estimate the volumes of eruptions. The techniques to be used are electron microprobe of basalt glass, XRF of whole rocks, and U-Th-Ra geochronology. ***
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Acquisition of an Automated X-ray Fluorescence Spectrometry System for Geological and Geochemical Research
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