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COLLABORATIVE RESEARCH: Mechanics of Footwall Uplift DuringDetachment Faulting: A Field Test of Kinematic and Dynamic Models

COLLABORATIVE RESEARCH: Mechanics of Footwall Uplift DuringDetachment Faulting: A Field Test of Kinematic and Dynamic Models
合作研究:拆离断层期间下盘隆起的力学:运动学和动力学模型的现场测试
批准号:
9219472
负责人:
Jane Selverstone
金额:
$6.75万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1992
资助国家:
美国
项目状态:
已结题
起止时间:
1992-08-01 至 1995-07-31

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中文摘要
翻译
地壳下剥蚀下盘岩石的均衡抬升 浅倾拆离断层被认为是导致向上 分离的破坏,并可能导致浅过去的 错误被抛弃。 这一理论预测随着断层的滑动 继续,陡峭,活跃和浅之间的铰链区, 断层的不活跃部分将通过下盘迁移。 替代模型预测将记录不同的应变路径 在下盘岩石中 这项研究将测试一个假设, 通过检查下盘应变状态迁移铰链带 三条不同构造背景的拆离断层下的岩石 设置:比弗坝山脉,犹他州;维普莱山脉, 加州和阿尔卑斯山东部的布伦纳线。 结果将允许 评估迁移的枢纽模型,并将有广泛的 适用于各种构造中的伸展带 环境.
英文摘要
Isostatic uplift of denuded footwall rocks beneath a shallowly-dipping detachment fault is thought to cause upwards arching of the detachment and may cause the shallow past of the fault to be abandoned. This theory predicts that as fault slip continues, the hinge zone between steep, active and shallow, inactive parts of the fault will migrate through the footwall. Alternative models predict different strain paths will be recorded in the footwall rocks. This study will test the hypothesis of a migrating hinge zone by examining the strain state in footwall rocks beneath three detachment faults from different tectonic settings: Beaver Dam Mountains, Utah; Whipple Mountains, California; and Brenner Line, eastern Alps. The results will allow assessment of the migrating hinge models and will have broad applicability to extensional zones in a variety of tectonic environments.
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Linked Isotopic (Cl, O, H) and Petrologic Studies of Fluid-rock Interaction During the Subduction Cycle
  • 批准号:
    0911669
  • 项目类别:
    Standard Grant
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    $27.0万
  • 财政年份:
    2009
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    Jane Selverstone
  • 依托单位:
Collaborative Research: What is the Strength of Low-Angle Normal Faults?
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    0809220
  • 项目类别:
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  • 财政年份:
    2008
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  • 依托单位:
Collaborative Research: Metamorphic Fluid Evolution and Rock Rheology
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  • 项目类别:
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  • 资助金额:
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Research on Quantum Field Theory without a Lagrangian Description
  • 批准号:
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  • 批准年份:
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  • 负责人:
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  • 依托单位:
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