Paleomagnetic Study of the Post-Cretaceous Displacement History of the Liquine-Ofqui Fault, Southern Chile

智利南部 Liquine-Ofqui 断层白垩纪后位移历史的古地磁研究

• 批准号: 9020524
• 负责人: Myrl Beck
• 金额: $ 1.59万
• 依托单位: Western Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1993-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9020524&HistoricalAwards=false
• 关键词: Paleomagnetic; Study; Post; Cretaceous; Displacement

This award supports cooperative research in paleontology to be conducted by Myrl Beck and others at Western Washington University and several Chilean geologists led by Francisco Herve of the University of Chile. Together they will carry out a study of the Liquine-Ofqui fault (LOF) which is a topographically prominent linear feature that extends more than 800 km through the fjords of southern Chile and into the active volcanic arc east of the Lake District. It is thus only slightly shorter than the San Andreas fault system of California. Unlike the San Andreas, however, the tectonic significance of the LOF is unknown. The investigators have located two large exposures of Cretaceous volcanic rocks on either side of the fault, and have obtained test samples that have favorable magnetic behavior. This proposal is for funding to do the paleomagnetic part of a multidisciplinary study of the LOF; other aspects of the research (geochemistry, geochronology, field mapping) are being funded by a grant from the Chilean government. Because two U.S. sceintists and six Chileans including two graduate students at W.W.U. are invloved, this is a good example of collaboration. Also, because of the education and training aspects of the work, it satisfies very well the goals of the Science in Developing Countries program.

该奖项支持古生物学的合作研究， 由米奥·贝克和其他人在西华盛顿指挥 大学和由弗朗西斯科领导的几位智利地质学家 智利大学的埃尔韦说。 他们将一起 研究了液化石油气-奥夫基断层（LOF）， 地形上突出的线状特征，延伸更多 穿越智利南部的峡湾， 湖区东部的活火山弧。 因此 比圣安德烈亚斯断层系统稍短 加州。 与圣安德烈亚斯不同的是， LOF的重要性尚不清楚。 调查人员已 发现了白垩纪火山岩的两个大的暴露， 故障的任何一侧，并已获得测试样品， 具有良好的磁性。 该提案是为 资助做一个多学科的古地磁部分 LOF研究;研究的其他方面（地球化学， 地质年代学、野外测绘）由赠款资助 从智利政府。 因为两名美国科学家和六名智利人， 华盛顿大学的研究生这是一个很好的例子。 合作的例子。 此外，由于教育和 培训方面的工作，它满足了很好的 发展中国家科学计划的目标。