Oceanic Faults in the Josephine Ophiolite: Geometry, Fluid Flow, and Magnetism
Oceanic Faults in the Josephine Ophiolite: Geometry, Fluid Flow, and Magnetism
批准号:
9005406
负责人:
Gregory Harper
金额:
$12.07万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1990
资助国家:
美国
项目状态:
已结题
起止时间:
1990-06-01 至 1993-05-31
中文摘要
约瑟芬蛇绿岩是一个大型、完整的蛇绿岩, 加州西北部,可能是由一个缓慢的- 伸展的大洋中脊 以前的工作表明, 岩浆房是幕式的,导致构造伸展 以及整个地壳序列在上地幔之上的倾斜 支队 这项工作将侧重于制定标准 对于大洋断层,包括 拆离作用,以及岩浆作用、断裂作用和 热液变质作用 预计结果将提供 对大洋中脊缓慢扩张的几个方面的深入了解 和他们在古代的例子中的认识。
英文摘要
The Josephine ophiolite is a large, complete ophiolite in northwestern California, which probably formed by a slow- spreading mid-ocean ridge. Previous work has indicated that magma chambers were episodic resulting in structural extension and tilting of the entire crustal sequence above an upper mantle detachment. This continuation will focus on developing criteria for oceanic faults, including serpentinite shear zones above the detachment, and the relationships between magmatism, faulting and hydrothermal metamorphism. Results are expected to provide insights into several aspects of slow-spreading mid-ocean ridges and their recognition in ancient examples.
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会议论文
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批准号:0003444
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项目类别:Standard Grant
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资助金额:$7.11万
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批准号:9706798
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资助金额:$12.99万
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依托单位:
Oceanic Faulting in the Northern Apennine Ophiolites, Italy
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批准号:9219534
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项目类别:Standard Grant
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资助金额:$12.02万
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财政年份:1993
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依托单位:
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批准号:8722425
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项目类别:Continuing Grant
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资助金额:$10.0万
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财政年份:1988
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负责人:Gregory Harper
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依托单位:
US-France Cooperative Research: Ophiolites and Ancient Island Arcs in the Klamath Mountains and Northern Sierra Nevada, California
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批准号:8612666
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项目类别:Standard Grant
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资助金额:$0.47万
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财政年份:1987
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依托单位:
Geochronology and Petrology of Arc Magmatism Associated withthe Josephine Ophiolite, Western Klamath Mountains, California-Oregon
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批准号:8518974
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项目类别:Standard Grant
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资助金额:$6.94万
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依托单位:
An Archean Ophiolite in the Wind River Mountains, Wyoming: Implications for Archean Tectonics
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批准号:8415566
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项目类别:Standard Grant
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资助金额:$2.65万
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财政年份:1984
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负责人:Gregory Harper
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依托单位:
An Archean Ophiolite(?) in the Wind River Mountains, Wyoming: Implications For Archean Tectonics
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批准号:8306376
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项目类别:Standard Grant
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资助金额:$5.0万
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财政年份:1983
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负责人:Gregory Harper
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依托单位:
海外基金