The "Slab-Window" Hypothesis: Timing and Chemistry of Patagonian Magmatism Relative to the Collision of the Chile Rise

“板窗”假说：巴塔哥尼亚岩浆活动相对于智利海隆碰撞的时间和化学性质

• 批准号: 9219328
• 负责人: Suzanne Kay
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-12-15 至 1995-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9219328&HistoricalAwards=false
• 关键词: Slab; Window; Hypothesis; Timing; Chemistry

As ridges approach and collide, "slab-windows" develop as young, hot and anhydrous subducting slabs lose their integrity. Arguably, the best place to study magmatism and deformation in relation to "slab-windows" is in southern Patagonian, where well defined segments of the Chile Rise have collided with the Chile trench over the last 14 Ma. The purpose of this project is to map the temporal, spatial and chemical distribution of these Patagonian "adakites" and plateau basalts in order to understand the thermal consequences of the intersections of "slab-windows" with continental crust.

随着山脊的接近和碰撞，“板窗”的发展， 年轻的，热的和无水的俯冲板块失去了他们的 完整 可以说，研究岩浆活动的最佳地点， 与“板窗”有关的变形是在南部 巴塔哥尼亚，智利隆起的明确部分 在过去的14 Ma里与智利海沟相撞。 这个项目的目的是绘制时间，空间 巴塔哥尼亚埃达克岩的化学分布， 高原玄武岩，以了解热 “平板窗”与“平板窗”交叉的后果 大陆地壳