Structure and Chronology of Tectonism, Northwest Great Valley: Implications for Convergent-Margin Evolution

西北大峡谷构造运动的结构和年代学：对汇聚边缘演化的启示

• 批准号: 9317096
• 负责人: Roy Johnson
• 金额: $ 8.88万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-02-15 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9317096&HistoricalAwards=false
• 关键词: Structure; Chronology; Tectonism; Northwest; Great

9317096 Johnson This project will examine and reprocess recently acquired seismic profile data, released from Industrial sources, for the northern Coast Ranges section of northern California. The data will be used to test two currently prevailing models - one involving Late Cretaceous to Paleocene extensional unroofing of the Franciscan blueschist complex, and the other involving unroofing of the complex in a compressional stress field - by providing a link between surface structural geometry and that at depth. The results will have wide applicability to forearc regions of other major orogenic regions. ***

该项目将检查和重新处理最近获得的地震剖面数据，这些数据来自加利福尼亚北部海岸山脉部分的工业来源。这些数据将用于测试目前流行的两种模型——一种涉及晚白垩世至古新世弗朗西斯蓝片杂岩的伸展拆顶，另一种涉及挤压应力场中杂岩的拆顶——通过提供地表结构几何形状与深处结构几何形状之间的联系。研究结果对其他主要造山带的弧前地区也具有广泛的适用性。＊＊＊