Collaborative Research: Structural and Geochronological Study of the Coast Mountains Orogen Near Portland Canal, SE Alaska and Coastal British Columbia

合作研究：阿拉斯加东南部波特兰运河附近的海岸山脉造山带和​​不列颠哥伦比亚省沿海地区的结构和年代学研究

• 批准号: 9304321
• 负责人: Maria Crawford
• 金额: $ 19.28万
• 依托单位: Bryn Mawr College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-09-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9304321&HistoricalAwards=false
• 关键词: Collaborative; Research; Structural; Geochronological; Study

9304321 Crawford The Coast Mts. Orogen of the North American Cordillera, comprises several important tectonic features, including one of the largest batholiths in the world, a major suture zone, regionally extensive upper amphibolite granulite facies rocks and a major thrust belt. This research will determine the detailed geochronology of the major structures and integrate the findings with interpreted plate motions. The results will provide tight constraints on timing and style of plate-margin processes, especially at the cessation of subduction and onset of orogen-parallel transform motion.

9304321克劳福德海岸MTS。北美科迪拉拉（North America Cordillera）的造型包括几个重要的构造特征，其中包括世界上最大的浴力石之一，一个主要的缝合区，区域广泛的上闪石颗粒颗粒相岩石和主要推力带。 这项研究将确定主要结构的详细地年代学，并将发现与解释的板块运动整合。 结果将对板块修订过程的时机和样式产生严格的限制，尤其是在俯冲和造型平行转换运动的开始时。