U.S.-Japan Cooperative Research: 40Ar/39Ar Geochronology in the High-Pressure Sambagawa Terrane, Japan

美日合作研究：日本三巴川高压地体的 40Ar/39Ar 地质年代学

• 批准号: 8815932
• 负责人: R. David Dallmeyer
• 金额: $ 1.22万
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-04-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8815932&HistoricalAwards=false
• 关键词: U.S.; Japan; Cooperative; Research; 40Ar

This award will enable Prof. R. David Dallmeyer of the University of Georgia to collaborate with Dr. Akira Takasu of Shimane University, Japan, over a period of two years. They will investigate the geochronology of a particular geological formation on the Japanese islands of Shikoku and Honshu, using a radioactive argon isotope dating method to verify and calibrate time-pressure evolutionary histories of the area. The purpose of this research is to enhance our understanding of the thermal and high-pressure phenomena which led to the current status of the geological structure that is known as the Sambagawa terrane in the Japanese islands. Understanding the precise timing, regional distribution, and overprinting relationships of the metamorphic structural events that have contributed to the formation of this terrane would enable geologists to completely assess the thermal effects associated with the various Japanese orogenic cycles, with resulting increase in understanding not only of important Japanese geological events, but of such events anywhere. The U.S. researcher is an expert in the argon dating techniques to be employed, and his Japanese collaborator performed the original survey of the geological history of the Sambagawa terrane.

该奖项将使R教授。芝加哥大学的大卫·达尔迈耶说， 格鲁吉亚与岛根大学的Akira Takasu博士合作， 日本，两年多来。他们会调查 日本一个特殊地质构造的年代学 四国和本州的岛屿，使用放射性氩同位素， 一种验证和标定时间-压力演化的测年方法 该地区的历史。 这项研究的目的是为了加强我们对 高温和高压现象导致了 被称为桑巴加瓦河的地质结构 日本群岛。 了解准确的时间，区域 分布和叠印关系 结构性事件促成了这一形成， 这将使地质学家能够完全评估热 与各种日本造山周期相关的影响， 这不仅增加了对日本重要文化的了解， 地质事件，但这样的事件在任何地方。 美国研究人员 他是氩测年技术的专家， 日本合作者进行了最初的地质调查 关于Sambagawa的历史