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The Geology of Donegal: A Geochronological Study of Granite Emplacement and Unroofing (Insights Into Terminal Orogenesis)

The Geology of Donegal: A Geochronological Study of Granite Emplacement and Unroofing (Insights Into Terminal Orogenesis)
多尼戈尔的地质：花岗岩就位和屋顶脱落的年代学研究（末期造山作用的见解）
批准号：
0125899
负责人：
Samuel Bowring
金额：
$11.39万
依托单位：
Massachusetts Institute of Technology
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2002
资助国家：
美国
项目状态：
已结题
起止时间：
2002-02-01 至 2005-01-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0125899&HistoricalAwards=false
关键词：
GeologyDonegalGeochronologicalStudyGranite

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Many mountain belts are characterized by late stage normal faults and bimodal igneous activity, both considered to be reflective of orogenic collapse. This proposal will address a classic example of such activity, the Donegal granitic suite of northern Ireland by collecting a suite of very high quality radiometric ages on igneous rocks and fabric-forming minerals in shear zones believed to related to plutonism. The ages of plutonic rocks coupled with ages of activity on major shear zones will provide critical data needed to evaluate various mechanisms which produced the late stage activity.
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