Collaborative Research: China-United States Scientific Cooperative Project: Academia Sinica (China) Stanford - Geophysical Lab; Petrogeochemical Study...

合作研究：中美科学合作项目：中央研究院（中国）斯坦福大学地球物理实验室；

• 批准号: 9526700
• 负责人: Douglas Rumble
• 金额: $ 3.79万
• 依托单位: Carnegie Institution of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-15 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9526700&HistoricalAwards=false
• 关键词: Collaborative; Research; China; United; States

9526700 Rumble This research involves a study of rocks from the Dabie-Sulu ultrahigh-pressure (UHP) terrane of eastcentral China. Topics to be studied include: (1) the areal extent of the extreme geochemical anomalies in negative delta 18-oxygen values and high epsilon Nd bulk-roak values, (2) the breadth of UHP metamorphism in the Dabie-Sulu collision zone, (3) the source and composition of volatiles during UHP metamorphism, and (4) the petrochemical differences between the UHP garnet-bearing ultramafics derived from cumulate intrusive and those from mantle wedges. These UHP metamorphic rocks are under intense investigation because they have been subjected to P-T conditions involving low temperatures and high pressures up to 45 kbars, in a tectonic setting responsible for arc-magma genesis and for intermediate-depth earthquakes.

9526700隆隆声这项研究涉及对中国东中心的Dabie-Sulu Ultrahigh Press（UHP）地形的岩石进行的研究。 要研究的主题包括：（1）在负18氧值负值的极端地球化学异常的范围和高含量的大量散装价值，（2）dabie-sulu碰撞区域中UHP变质的广度富含石榴石的超富夫源自累积的侵入性和地幔楔形物。 这些UHP变质岩正在接受激烈的研究，因为它们遭受了涉及低温和高压高达45 kbars的P-T条件，在负责ARC-MAGMA Genesis和中间深入地震的构造环境中。