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Rapid Alteration and the Origin of the Central Anomaly Magnetic High

Rapid Alteration and the Origin of the Central Anomaly Magnetic High
快速蚀变与中心异常磁高压的起源
批准号：
9402307
负责人：
Jeffrey Gee
金额：
$9.68万
依托单位：
Columbia University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1994
资助国家：
美国
项目状态：
已结题
起止时间：
1994-05-15 至 1996-04-30
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9402307&HistoricalAwards=false
关键词：
RapidAlterationOriginCentralAnomaly

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英文摘要
9402307 Gee Sea surface magnetic anomaly profiles typically exhibit a short wavelength acial high (called CAMH) over mid-oceanic ridges. In this project the PIs will carry out a coring program to investigate the origin of this high. They want to test the hypothesis whethr low-temperature alteration of the crust is responsible for CAMH. Because this high is sensitive to age, the PIs argue that a time scale may also be developed that will allow determination of ages of 30 k.y. old MORB.
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Collaborative Research: A geomagnetic intensity time series from the Proterozoic Laramie anorthosite
Collaborative Research: Tracking the thermal and petrologic evolution of magmatically robust fast spread lower ocean crust
Collaborative Research: High Precision 40Ar/39Ar Geochronology and Paleomagnetism to Determine the History and Consequences of Louisville Mantle Plume Motion
Collaborative Research: An Evaluation of Ash Flow Tuffs as Geomagnetic Paleointensity Recorders
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