欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
位置：立项数据库 > 立项详情页
中文摘要：
在深俯冲陆壳的折返过程中，含水矿物分解、原生包裹体爆裂和结构羟基出溶能够产生可观的含水流体，成为碰撞造山带变质作用研究的重要目标之一。采用岩石学和地球化学方法示踪大别-苏鲁造山带峰期超高压变质作用之后的流体活动，是探索深俯冲陆壳折返过程中流体活动性大小和数量的有效手段。本项目拟在岩相学观察基础上，通过稳定同位素地球化学和同位素年代学相结合方法，确定不同类型原岩在板块深俯冲和折返过程中锆石生长的准确时间，认识石英脉及其寄主变质岩在矿物氢氧同位素、锆石U-Pb年龄和显微结构上的差异，区分榴辉岩内部形成高压石英脉的隧道式流体流动与导致角闪岩相退变质弥散式流体流动，探索深俯冲板块折返过程中流体活动对不同同位素体系的影响。结果不仅对理解高压-超高压变质过程中流体来源、流体活动时间、流体参与的矿物学反应等科学问题，而且对认识陆陆碰撞造山带的地球动力学过程和壳幔物质再循环具有重要意义。
成果综合统计
期刊论文
会议论文
专利
获奖
著作
期刊论文
Dehydration and melting during continental collision: constraints from element and isotope geochemis
Diffusion compensation for argon, hydrogen, lead, and strontium in minerals: Empirical relationships
Isotopic constraints on age and duration of fluid-assisted high-pressure eclogite-facies recrystalli
Fluid flow during exhumation of deeply subducted continental crust: Zircon U-Pb age and O isotope st
A perspective view on ultrahigh-pressure metamorphism and continental collision in the Dabie-Sulu or
Origin of retrograde fluid in ultrahigh-pressure metamorphic rocks: constraints from mineral hydroge
Mineral oxygen isotope and hydroxyl content changes in ultrahigh-pressure eclogite-gneiss transition
U-Pb, Hf and O isotope evidence for two episodes of fluid-assisted zircon growth in marble-hosted ec
Geochronology and stable isotope geochemistry of UHP metamorphic rocks at Taohang in the Sulu orogen
Zircon U-Pb age, Hf and O isotope constraints on protolith origin of ultrahigh-pressure eclogite and
Zircon U-Pb ages and Hf isotopes in ultrahigh-pressure metamorphic rocks from the Chinese Continenta
TC/EA-MS online determination of hydrogen isotope composition and water concentration in eclogitic g
相关项目
郑永飞的项目