Microplate Capture, Large-Scale Rotations and Initiation of the San Andreas Transform: Test of a New Tectonic Model

微板捕获、大规模旋转和圣安地列斯变换的启动：新构造模型的测试

• 批准号: 9405261
• 负责人: Craig Nicholson
• 金额: $ 8.37万
• 依托单位: University of California-Santa Barbara
• 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: 1994-07-15 至 1995-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9405261&HistoricalAwards=false
• 关键词: Microplate; Capture; Large; Scale; Rotations

9405261 Nicholson The tectonic evolution of the Pacific-North America plate boundary is tied to the development of several engimtic features of the California margin, including large-scale rotations of the Transverse Ranges, the location of several strike-slip faults and regions of extreme crustal extension. A recent tectonic model based largely on seismic reflection data has been developed that, in theory, accommodates these features. This project will test this model by investigating the relationship and interaction of off-shore oceanic plates with respect to known geology of western North America, taken from a variety of databases. Results should test the new model, and if successful, will result in a series of quantitative palinspastic maps of the evolving Pacific- North America plate boundary since 30ma.

小行星9405261 太平洋-北美板块边界的构造演化与加州边缘的几个动力学特征的发展有关，包括横向山脉的大规模旋转、几个走滑断层的位置和极端地壳伸展区域。 最近的构造模型主要是基于地震反射数据已经开发出来，在理论上，容纳这些功能。 该项目将通过调查近海海洋板块与取自各种数据库的北美西部已知地质的关系和相互作用来检验这一模型。 结果应该测试新的模型，如果成功，将导致一系列的定量古地磁图的演变太平洋-北美板块边界自30马。