Magnetic Petrology of the Lower Crust

下地壳磁性岩石学

• 批准号: 9316066
• 负责人: Richard Warner
• 金额: $ 6万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-02-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9316066&HistoricalAwards=false
• 关键词: Magnetic; Petrology; Lower; Crust

9316066 Warner The PI has undertaken a study of the magnetic petrology of lower crustal rocks. The general long-term goal is to increase our understanding of lower crustal magnetization through the study of xenoliths, crustal cross sections, etc. He will analyze xenolith samples from convergent volcanic arcs (Aleutian and Japanese islands) and continental rift zones (Rio Grande and West Antarctic rifts), and investigate the effects of prograde (amphibolite to granulite facies) metamorphism in a traverse through lower crustal rocks exposed in the Kohistan arc, Pakistan. The samples will be analyzed via a dual approach involving magnetic property measurements (initial susceptibilities, natural and saturation isothermal remanence, Curie points, magnetic hysteresis, etc.), supplemented by petrographic and microprobe studies. ****

9316066华纳国际对下地壳岩石的磁性岩石学进行了研究。总的长期目标是通过对包体、地壳剖面等的研究来增加我们对下地壳磁化的理解。他将分析来自汇聚的火山弧(阿留申群岛和日本岛屿)和大陆裂谷带(里奥格兰德和西南极裂谷)的包裹体样品，并研究穿过巴基斯坦科希斯坦弧出露的下地壳岩石的递进(角闪岩到麻粒岩相)变质作用的影响。样品将通过双重方法进行分析，包括磁性测量(初始磁化率、自然和饱和等温剩磁、居里点、磁滞等)，并辅之以岩相学和微探针研究。****