Deformation and the Mechanisms of Ar Loss in Mylonite Zones
Deformation and the Mechanisms of Ar Loss in Mylonite Zones
批准号:
9506063
负责人:
Kip Hodges
金额:
$12.56万
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:
1995-07-01 至 1998-06-30
中文摘要
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英文摘要
One of the fundamental goals of tectonic research is to age date the formation of geologic structures and associated deformation fabrics. This project will attempt to apply the argon dating technique to a mylonite, whose age is tightly constrained by independent means. The work involves laser microprobe 40Ar/39Ar age determinations and standard electron microprobe and TEM methods. Results are expected to provide a better understanding of the way in which structural defect development and recrystalization associated with mylonitization affects Argon loss mechanisms in deformed rocks. Such information is required to develop a reliable and useful geochronometric method for mylonite events.
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