Collaborative Proposal: 4-D Assessment of the Earliest Stages of Magmatism in a Continental Margin Arc
Collaborative Proposal: 4-D Assessment of the Earliest Stages of Magmatism in a Continental Margin Arc
批准号:
0001102
负责人:
Akhaury Sinha
金额:
$18.5万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-07-15 至 2004-06-30
中文摘要
当外来物质通过收缩构造向大陆边缘聚集时,发生了一些重要的条件变化,其中一些导致岩浆的产生,这些岩浆随后参与了持续的构造发育。由于调性岩体通常是在大陆边缘弧的增生过程中产生的,它们的成分提供了源区P-T-X - H2O条件的信息,并结合构造和构造数据,为岩浆在穿越和侵位地壳过程中可能导致化学修饰的搬运和侵位过程提供了约束。该项目将利用阿拉斯加东南部Revillagigedo岛上的一套调性岩体,这些岩体记录了大陆弧岩浆活动的早期阶段。研究结果有望详细描述和追踪这些岩浆在这一会聚背景下的起源、改造和构造相互作用。
英文摘要
0000719 Beard0001004 Crawford0001102 SinhaAs exotic material accretes to a continental margin by convergent tectonics, a number of important changes in conditions occurs, some of which lead to production of magma that subsequently becomes involved in the ongoing structural development of the accretion. As tonalitic plutons are commonly generated as continental margin arcs accrete, their composition provides information about the P-T-X H2O conditions of the source region, and combined with fabric and structural data, provide constraints for the transport and emplacement processes that might lead to chemical modification of magmas as they traverse and are emplaced in the crust. The project will utilize a suite of tonalitic plutons on Revillagigedo Island in southeastern Alaska that record early stages of continental arc magmatism. Results are expected to detail and track the origin, modification and tectonic interactions of these magmas in this convergent setting.
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Collaborative workshop proposal: Drawing the roadmap for the semantic/ontology based infrastructure for Geosciences
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批准号:1238438
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项目类别:Standard Grant
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资助金额:$8.99万
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财政年份:2012
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负责人:Akhaury Sinha
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依托单位:
Geoinformatics 2007 Conference; La Jolla, California; May 17-18, 2007
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批准号:0719890
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:2007
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负责人:Akhaury Sinha
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依托单位:
Research Frontiers in Appalachian Geology: A Pre-EARTHSCOPE (USArray) Workshop Proposal
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批准号:0345385
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项目类别:Standard Grant
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资助金额:$3.35万
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财政年份:2004
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负责人:Akhaury Sinha
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依托单位:
Collaborative Research: ITR: GEON-A Research Project to Create Cyberinfrastructure for the Geosciences
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批准号:0225588
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项目类别:Continuing Grant
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资助金额:$96.73万
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财政年份:2002
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负责人:Akhaury Sinha
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依托单位:
Collaborative Research: ACCRETE: An Integrated Study of Continental Growth at a Convergent to Transpressive Plate Margin
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批准号:9526613
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项目类别:Continuing Grant
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资助金额:$9.37万
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财政年份:1996
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负责人:Akhaury Sinha
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依托单位:
COLLABORATIVE RESEARCH: Thermal Evolution of the Maryland Pennsylvania Piedmont: Application of U-Pb Geochronology to Collisional Tectonics
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批准号:9303694
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项目类别:Standard Grant
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资助金额:$14.72万
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财政年份:1993
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负责人:Akhaury Sinha
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依托单位:
Metamorphic and Isotopic Studies of Mylonites
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批准号:9004277
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项目类别:Standard Grant
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资助金额:$9.99万
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财政年份:1990
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负责人:Akhaury Sinha
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依托单位:
Acquisition of a New Multi-Collector, Solid Source Mass Spectrometer
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批准号:8816643
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项目类别:Standard Grant
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资助金额:$18.53万
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财政年份:1989
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负责人:Akhaury Sinha
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依托单位:
Metamorphic and Isotopic Studies of Mylonite
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批准号:8707388
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项目类别:GAA
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资助金额:$10.0万
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财政年份:1987
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负责人:Akhaury Sinha
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依托单位:
Radiometric Ages and Metamorphic Geochemistry of Selected Mylonite Zones from the Southern Appalachians
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批准号:8416575
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项目类别:Continuing Grant
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资助金额:$9.48万
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财政年份:1985
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负责人:Akhaury Sinha
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依托单位:
Isotopic and Geochemical Characterization of Granulites FromVirginia and the Baltimore Mafic Complex, Maryland
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批准号:8206822
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项目类别:Continuing Grant
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资助金额:$6.09万
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财政年份:1982
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负责人:Akhaury Sinha
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依托单位:
The Bearing of Lead Isotopes on the Origin of Granitic Rocks and Their Zircon Ages
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批准号:7926340
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项目类别:Standard Grant
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资助金额:$6.99万
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财政年份:1980
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负责人:Akhaury Sinha
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依托单位:
U-Pb Geochronology of the Central and Southern Appalachians And Pb-U-Th Studies of Iron Meteorites
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批准号:7100566
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项目类别:Standard Grant
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资助金额:$8.08万
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财政年份:1971
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负责人:Akhaury Sinha
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依托单位:
海外基金