| 大陆板块俯冲和折返过程中的流体活动：稳定同位素证据 |
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| 关键词:ultrahigh pressure metamorphism fluid activity structural hydroxyl stable isotope |
| 基金项目:本文由国家自然科学基金项目（编号：G1999075503)资助。 |
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| 摘要: |
| Stable Isotope Evidence for Fluid Activity During Subduction and Exhumation of the Continental Crust |
| Systematic studies involving stable isotopes, fluid inclusions and petrological phase relationships were conducted in the past few years with respect to the mobility and amounts of metamorphic fluids in UHP metamorphic rocks of the Dabie-Sulu orogenic belt. The results demonstrate that the fluid activity during the exhumation of deep-subducted continental crust has the following effects:①amphibolite-facies retrogression due to pervasive fluid flow;②formation of HP quartz veins within eclogites due to channelized fluid flour;③partial melting of overlying crustal rocks due to focused fluid flow, producing syn-exhumation magmatism within the orogenic belt. |
| ZHENG Yongfei.2005.Stable Isotope Evidence for Fluid Activity During Subduction and Exhumation of the Continental Crust[J].Acta Geoscientica Sinica,26(z1):94-97. |
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