Margins: Collaborative Research: Seismic and geologic study of Gulf of California rifting and magmatism

边缘：合作研究：加利福尼亚湾裂谷和岩浆作用的地震和地质研究

• 批准号: 0112152
• 负责人: W Steven Holbrook
• 金额: $ 24.69万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-04-01 至 2006-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0112152&HistoricalAwards=false
• 关键词: Margins; Collaborative; Research; Seismic; geologic

Funding is provided for a seismic and structural geology experiment to delineate the geometries and patterns of crustal extension and rift magmatism along three main conjugate margins across Alarcon, Guaymas and Delfin Basins (to study the south to north seafloor-spreading to non-spreading mode) and a E-W profile along Wagner Basin (to study the low-angle detachment fault at depth). The questions to be addressed include, strain partitioning, volumetric and emplacement style of rift magmatism, along-axis differences in extension style and the influence of sedimentation on deformation. An integrated land-based and at sea study is planned for the next three years.

为地震和构造地质学实验提供资金，以描绘阿拉尔孔盆地、瓜伊马斯盆地和德尔芬盆地三个主要共轭边缘的地壳伸展和裂谷岩浆作用的几何形状和模式（研究从南到北海底扩张到非扩张模式）以及沿瓦格纳盆地的东西向剖面（用于研究深度的低角度滑脱断层）。需要解决的问题包括应变划分、裂谷岩浆作用的体积和侵位方式、伸展方式的沿轴差异以及沉积对变形的影响。计划在未来三年内进行综合陆基和海上研究。