Spreading Structure and Detachment Faulting in the JosephineOphiolite: Implications for Slow-Spreading-Mid-Ocean Ridges

约瑟芬蛇绿岩中的扩张结构和拆离断层：对缓慢扩张的大洋中脊的影响

• 批准号: 8722425
• 负责人: Gregory Harper
• 金额: $ 10万
• 依托单位: SUNY at Albany
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-01-15 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8722425&HistoricalAwards=false
• 关键词: Spreading; Structure; Detachment; Faulting; JosephineOphiolite

Ophiolites represent obducted slabs of ocean crust, and as such offer the possibility of insights into ocean crust formation. The Josephine ophiolite represents one of the largest and most intact ophiolites in the world. This project will investigate in detail recently discovered low angle faults that may represent low angle detachment faults that were active during initial slow- spreading mid-ocean ridge activity. The geometry and spreading structure associated with such detachment faults can not be easily obtained from ocean drilling, and can best be developed from ophiolite examples. Results will be applicable to several important subjects including how lithosphere forms at slow spreading centers.

蛇颈岩代表着洋壳的仰冲板块， 这为深入了解洋壳的形成提供了可能性。 约瑟芬蛇绿岩代表了世界上最大、 世界上最完整的蛇类 该项目将在 最近发现的低角度断层的细节， 角状滑脱断层在最初的缓慢- 大洋中脊活动的扩散 几何形状和传播 与这种滑脱断层有关的构造， 很容易从海洋钻探中获得， 蛇绿岩的例子。 结果将适用于几个 重要的课题包括岩石圈是如何缓慢形成的 扩散中心