Kinematic History of the Pasayten and Entiat Fault Zones, Northwestern Washington

华盛顿州西北部帕赛坦断层带和恩蒂亚特断层带的运动史

• 批准号: 8803614
• 负责人: Darrel Cowan
• 金额: $ 8.81万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-06-15 至 1991-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8803614&HistoricalAwards=false
• 关键词: Kinematic; History; Pasayten; Entiat; Fault

The role of transcurrent faulting during Late Cretaceous to early tertiary deformation associate with terrane accretion to northwest North America is controversial, and several different hypotheses exist to explain the evolution of the orogen from Washington north into Canada. This project will collect data on displacement history (sense of shear through time), the Pressure-Temperature conditions during deformation and the age of movements along two major basin-bounding faults, the Pasayten and Entiat faults in northwestern Washington. Results will help elucidate the relative importance of contractional and transcurrent structures in one of the major Late Mesozoic orogenic belts of North America, and more fundamental questions regarding the role of transcurrent faults near convergent margins.

晚白垩世横断层作用 到第三纪早期变形， 北美西北部的加积是有争议的， 有几种不同的假说可以解释 从华盛顿向北延伸到加拿大。 这 该项目将收集有关位移历史的数据（ 剪切通过时间），压力-温度条件 在变形和运动的年龄沿着两个主要 盆地边界断层，Pasayten断层和Dallatat断层， 位于华盛顿西北部。 结果将有助于阐明 收缩和横流的相对重要性 晚中生代主要造山带之一 关于北美的一些基本问题， 会聚边缘附近的横断层的作用。