Magmatic and Solid-State Strains in Plutons of the Central Sierra Nevada Batholith: Implications for Pluton Ascent, Emplacement, and Batholith Dynamics

内华达山脉中部岩基岩浆和固态应变：对岩体上升、就位和岩基动力学的影响

• 批准号: 9204712
• 负责人: Othmar Tobisch
• 金额: $ 15万
• 依托单位: University of California-Santa Cruz
• 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: 1992-07-01 至 1995-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9204712&HistoricalAwards=false
• 关键词: Magmatic; Solid; State; Strains; Plutons

Plutons and their wallrocks are an interrelated system in which the regional strain field and physical condition of the wallrock influence pluton ascent and emplacement, while the heat, fluids and local strain field of the rising magma in turn influence wallrock deformation. This project will attempt to better under- stand this interrelationship by study of magmatic strains, structures and kinematics in three spatially related plutons in the Sierra Nevada and in the adjacent wallrocks. The data obtained will yield insight into the nature of pluton ascent and emplacement in large volume magmatic arcs, and is expected to be applicable to continental magmatic arcs in general.

岩体及其围岩是一个相互联系的系统，围岩的区域应变场和物理条件影响着岩体的上升和侵位，而上升岩浆的热、流体和局部应变场反过来又影响着围岩的变形。该项目将试图通过研究内华达山脉及其邻近围岩中三个空间上相关的深成岩体中的岩浆应变、结构和运动学来更好地理解这种相互关系。所获得的数据将有助于深入了解大体积岩浆弧中岩体上升和侵位的本质，并有望普遍适用于大陆岩浆弧。