RUI: Structural and Metamorphic Evolution of the Eastern Margin of the Coast Plutonic Complex East of Mt. Waddington,Southwestern British Columbia

RUI：不列颠哥伦比亚省西南部沃丁顿山东部海岸深成杂岩东缘的结构和变质演化

• 批准号: 8804806
• 负责人: Margaret Rusmore
• 金额: $ 4.86万
• 依托单位: Occidental College
• 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: 1988-06-01 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8804806&HistoricalAwards=false
• 关键词: RUI; Structural; Metamorphic; Evolution; Eastern

The Coast Plutonic Complex, an 1800 km long belt of Cretaceous and Tertiary metamorphic and plutonic rocks, straddles the contact between the Insular and Intermontane super terranes in British Columbia. These allochthonous bodies were accreted either during mid-Cretaceous time or possibly during the Jurassic. In order to help constrain models of the tectonic evolution of the Coast Plutonic Complex, this project will examine the eastern margin of the belt in British Columbia where the structural and metamorphic history of this margin can be documented and the relative importance of transcurrent and thrust faulting be assessed. By providing information on the timing, style and regional extent of deformation and metamorphism, the project will contribute towards a comprehensive model for the origin of the belt and accretion of the Insular terrane.

海岸深成杂岩是一条长1800公里的白垩纪和第三纪变质岩和深成岩带，横跨不列颠哥伦比亚省岛屿和山间超级地体之间的接触。这些异域体是在白垩纪中期或侏罗纪时期形成的。为了帮助约束海岸深成杂岩构造演化的模型，该项目将考察不列颠哥伦比亚省的东缘，在那里可以记录该边缘的构造和变质历史，并评估横向和逆冲断层的相对重要性。通过提供变形变质作用的时间、类型和区域范围等信息，该项目将有助于建立一个完整的岛状地体起源和增生模式。