RUI: COLLABORATIVE RESEARCH: Pluton Emplacement in Relation to Jurassic Volcanic Arc Evolution and Orogenesis in the Northern Sierra Terrane, California

RUI：合作研究：与加利福尼亚州北部山脉侏罗纪火山弧演化和造山作用相关的岩体侵位

• 批准号: 9220066
• 负责人: Gary Girty
• 金额: $ 7.82万
• 依托单位: San Diego State University Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-01 至 1995-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9220066&HistoricalAwards=false
• 关键词: RUI; COLLABORATIVE; RESEARCH; Pluton; Emplacement

The northern Sierra terrane of California contains extensive exposures of a Jurassic volcano-plutonic assemblage that formed on the Pacific margin of north American. If offers the possibility of placing tight limits on the timing of tectonic events including arc magmatism, metamorphism and deformation associated with building of the arc and its subsequent development and final destruction. The work involves using fossil ages and extensive radiometric age determinations from various phases of the plutonic assemblage. When integrated with other data, the detailed chronology of structural and magmatic events established for the study area will allow rigorous comparison with other mid-Mesozoic terranes in the Sierra and will help evaluate regional tectonic models.

加利福尼亚州北部的山脉地体广泛暴露了在北美太平洋边缘形成的侏罗纪火山-深成岩组合。 如果提供了对构造事件的时间进行严格限制的可能性，包括与弧的形成及其随后的发展和最终破坏相关的弧岩浆作用、变质作用和变形。 这项工作涉及使用化石年龄和对深成体组合各个阶段的广泛辐射年龄测定。 当与其他数据整合时，为研究区域建立的构造和岩浆事件的详细年表将允许与山脉其他中生代地体进行严格比较，并有助于评估区域构造模型。