Structural and Petrological Investigation of Four Tauride Ophiolites: Implications for the Evolution of Neo Tethys and the "Ophiolite Controversy"
Structural and Petrological Investigation of Four Tauride Ophiolites: Implications for the Evolution of Neo Tethys and the "Ophiolite Controversy"
批准号:
8721166
负责人:
John Casey
金额:
$8.98万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1988
资助国家:
美国
项目状态:
已结题
起止时间:
1988-04-15 至 1991-09-30
中文摘要
根据对两个不同的海洋区域的认识,可以划分出阿尔卑斯山中东的中生代历史,这两个区域在某种程度上是相互依存的。较老的古特提亚地区最初将劳拉西亚与冈瓦那超大陆分开,但当一个微大陆从冈瓦那分离并向劳拉西亚移动时,该地区被关闭,导致新特提亚地区的开放。土耳其最近的研究表明,存在保存完好的古特提斯和新特提斯洋盆的残留物。该项目将研究土耳其的一套蛇绿岩,这些蛇绿岩被认为代表了这两个洋盆的海底,并将研究它们的起源和侵位历史。这些结果与地中海-中东地区相当复杂但总体上趋同的构造直接相关。
英文摘要
The Mesozoic history of the Alpine Middle East can be divided on the basis of the recognition of two distinct oceanic tracts that have evolved somewhat interdependently. The older Paleotethyan tract originally separated Laurasia from the Gondwana supercontinent but was closed when a microcontinent separated from Gondwana and moved towards Laurasia, causing the opening of the Neotethyan tract. Recent work in Turkey has shown the presence of remnants of well-preserved segments of both the Paleo- and Neo- Tethyan ocean basins. This project will study a suite of ophiolites in Turkey believed to represent ocean floor of these two ocean basins, and will address aspects of their origin and emplacement histories. Results bear directly ont he quite complex but overall convergent tectonics of the Mediterranean - Middle East region.
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会议论文
Seafloor Magmatic Construction - A LA ICPMS Based Study
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批准号:0351646
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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:2004
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负责人:John Casey
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依托单位:
Magmatic and Tectonic Segmentation of the Mid-Atlantic Ridge30 Degrees to 34 Degrees North, A U.S. - Soviet Cooperative Study
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批准号:9204105
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项目类别:Continuing Grant
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资助金额:$15.29万
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财政年份:1992
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负责人:John Casey
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依托单位:
ALVIN Diving in the Intra-Transform Spreading Centers of theSiqueiros Transform
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批准号:9106231
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项目类别:Continuing Grant
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资助金额:$5.36万
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财政年份:1991
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负责人:John Casey
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依托单位:
Acquisition of An Inductively Coupled Plasma Emission Spectrometer
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批准号:8916049
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项目类别:Standard Grant
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资助金额:$4.02万
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财政年份:1990
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负责人:John Casey
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依托单位:
Structural and Stratigraphic Study of the Humber Arm Allochthon of Western Newfoundland: Implications for StableMargin Dev., Obduction, Accretion, and Melange Formation
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批准号:8804756
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项目类别:Standard Grant
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资助金额:$4.91万
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财政年份:1988
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负责人:John Casey
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依托单位:
Petrological, Geochemical and Structural Study of ALVIN - Recovered Peridotites From the Mid-Atlantic Ridge Near 23'N
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批准号:8700345
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项目类别:Standard Grant
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资助金额:$8.47万
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财政年份:1987
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负责人:John Casey
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依托单位:
海外基金