40 Ar/39 Ar Geochronological Research in the Sambagawa and Adjacent Terranes, Japan: Analytical Expenses

40 Ar/39 Ar 日本三波川及邻近地体的年代学研究：分析费用

• 批准号: 8915135
• 负责人: R. David Dallmeyer
• 金额: $ 6.49万
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915135&HistoricalAwards=false
• 关键词: 40; Ar; 39; Geochronological; Research

Funds will defray the analytical laboratory costs involved in a 40Ar/39Ar geochronological research program in the classic Sambagawa high-pressure terrane and adjacent lithotectonic units exposed on the islands of Shikoku and Honshu, Japan. Travel and all logistical expenses of the project are covered by grants awarded to R.D. Dallmeyer from the U.S. National Science Foundation ($12,154: INT-8815932) and to A. Takasu (Shimane University) from the Japan Society for the Promotion of Science. The proposed Japanese collaborators (A. Taksu and T. Hirajima) have been investigating the thermal evolution of the Sambagawa and adjacent belts for over 10 years. The U.S. collaborator (R.D. Dallmeyer) has been utilizing the 40Ar/39Ar dating method in complex polymetamorphic terranes in major orogenic belts. The specific goals of the proposed research are to calibrate the time-temperature-pressure evolutionary histories of the Sambagawa terrane and adjacent areas and to coordinate the results with various proposed tectonic modes. The expected results will be of importance not only to the Japanese archipelago, but to high- pressure subduction complexes of all ages throughout the world.

资金将用于支付在日本四国岛和本州岛上暴露的经典Sambagawa高压地体和邻近的岩石构造单元中的40Ar/39Ar地质年代学研究项目所涉及的分析实验室成本。该项目的旅行和所有后勤费用由美国国家科学基金会授予R.D.Dallmeyer(12,154美元：INT-8815932)和日本科学促进会授予A.Takasu(岛根大学)的赠款支付。被提议的日本合作者(A.Taksu和T.Hirajima)已经研究Sambagawa及其邻近带的热演化超过10年了。这位美国合作者(R.D.Dallmeyer)一直在主要造山带的复杂多变质地体中使用40Ar/39Ar测年方法。拟议研究的具体目标是校准Sambagawa地体及其邻区的时间-温度-压力演化史，并将结果与各种拟议的构造模式相协调。预期的结果不仅对日本群岛，而且对世界各地各个年龄段的高压俯冲复合体都是重要的。