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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
浅倾滑脱断层下方剥蚀的下盘岩石的均衡抬升被认为是造成滑脱的向上拱起,并可能导致断层的浅部过去被遗弃。这一理论预测,随着断层滑动的继续,断层陡峭、活动和浅不活动部分之间的铰接区将通过下盘迁移。另一种模型预测,不同的应变路径将记录在下盘岩石中。这项研究将通过检查来自不同构造环境的三条拆离断层下围岩的应变状态来验证迁移铰链区的假设:犹他州的比弗坝山脉、加利福尼亚州的惠普尔山脉和东部阿尔卑斯山的布伦纳线。这一结果将允许对运移铰模型进行评估,并将对各种构造环境中的伸展带具有广泛的适用性。
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
  • 资助金额:
    $27.0万
  • 财政年份:
    2009
  • 负责人:
    Jane Selverstone
  • 依托单位:
Collaborative Research: What is the Strength of Low-Angle Normal Faults?
  • 批准号:
    0809220
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $14.86万
  • 财政年份:
    2008
  • 负责人:
    Jane Selverstone
  • 依托单位:
Collaborative Research: Metamorphic Fluid Evolution and Rock Rheology
  • 批准号:
    0509937
  • 项目类别:
    Standard Grant
  • 资助金额:
    $0.0万
  • 财政年份:
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  • 依托单位:
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    0229238
  • 项目类别:
    Standard Grant
  • 资助金额:
    $19.47万
  • 财政年份:
    2003
  • 负责人:
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海外基金
Research on Quantum Field Theory without a Lagrangian Description
  • 批准号:
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  • 项目类别:
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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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