Petrogenesis of an Alkaline Granitoid Batholith in East-Central Asia
Petrogenesis of an Alkaline Granitoid Batholith in East-Central Asia
批准号:
9304080
负责人:
Stephen Wickham
金额:
$14.9万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1993
资助国家:
美国
项目状态:
已结题
起止时间:
1993-07-15 至 1996-06-30
中文摘要
古生界和中生代碱性侵入作用是 在俄罗斯外贝加尔湖的岩基规模上发展起来, 在长达1000公里的带状区域内 数亿年的时间。 岩石成因 这些岩石将通过一个多- 学科研究项目,涉及领域,同位素和 岩石学研究 通过结合详细的研究, 个别的深成杂岩,年代跨度很大 沿着岩浆的长度进行区域研究, 带,碱性的化学和同位素变化 将描绘花岗岩类岩浆的时间和空间。 将详细的露头规模研究与区域 地球化学系统和现场关系将有助于 解释为什么这个地区会产生如此巨大的 古生代和中生代的碱性岩浆, 并可能导致我们理解的相当大的进步 大陆非造山岩浆作用的证据
英文摘要
Paleozoic and Mesozoic silicic alkaline plutonism is developed on a batholith scale in Transbaikalia, Russia, within belts 1000's of kilometers long and spanning a time period of hundreds of millions of years. The petrogenesis of these rocks will be investigated through a multi- disciplinary research project involving field, isotopic and petrological studies. By combining detailed studies of individual plutonic complexes spanning a wide range of age with regional studies along the length of the magmatic belts, the chemical and isotopic variations of the alkaline granitoid magmas in time and space will be delineated. Integration of detailed outcrop-scale studies with regional geochemical systematic and field relationships will help to explain why this region produces such prodigious volumes of silicic alkaline magma during the Paleozoic and Mesozoic, and may lead to considerable advances in our understanding of continental anorogenic magmatism.
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Geochemistry and Petrology of Fluid Flow and Melting During Metamorphism in North-Eastern Nevada
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批准号:9019256
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项目类别:Standard Grant
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资助金额:$12.72万
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财政年份:1991
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负责人:Stephen Wickham
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依托单位:
Laser-Assisted Stable Isotope Research (LASIR)
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批准号:9104982
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项目类别:Standard Grant
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资助金额:$2.07万
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财政年份:1991
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负责人:Stephen Wickham
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依托单位:
Purchase of Components for Hydrogen Isotope Analysis
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批准号:8717056
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项目类别:Standard Grant
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资助金额:$0.69万
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财政年份:1988
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负责人:Stephen Wickham
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依托单位:
Geochemical and Petrological Studies of Fluid Transport in Nevada and the Pyrenees
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批准号:8720097
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项目类别:Standard 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:Stephen Wickham
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依托单位:
Purchase of Hydrogen Isotope Collectors
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批准号:8618916
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项目类别:Standard Grant
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资助金额:$0.86万
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财政年份:1987
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负责人:Stephen Wickham
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依托单位:
海外基金