Tracing of the Deep Fluids in Western Tianshan by the Electron Microprobe Analyses of Omphacite Form High-Pressure Veins and Host-Rocks

De Zhi Huang; Yu Han Liu; Zhen Liu; Long Wang; Huang Ling Gu

doi:10.4028/www.scientific.net/AMR.734-737.219

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737Tracing of the Deep Fluids in Western Tianshan by...

Tracing of the Deep Fluids in Western Tianshan by the Electron Microprobe Analyses of Omphacite Form High-Pressure Veins and Host-Rocks

Abstract:

Western Tianshan High-pressure (HP)-metamorphic belt is characterized by developed High-pressure (HP) veins, which are composed by HP-metamorphic minerals. The host rocks of the HP-veins are mainly composed by eclogites and blueschists. As the direct record of the deep fluids in the paleo-subduction zones, the HP-veins can provide us deep samples for probing into the deep fluids in the subduction zones. Fluids in the deep subduction zones play an important role in crust-mantle exchange related to plate subduction process. The electron microprobe analyses of HP-metamorphic minerals omphacite inside the veins and host rocks in western Tianshan high-pressure metamorphic belt is mostly paid attention. The result shows that the composition of the omphacite from HP-veins have the same composition of the omphacite from the host rocks, which indicates that the fluids from which the HP-vein precipitated originated from the host rock.

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Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

219-223

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.734-737.219

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Online since:

August 2013

Authors:

De Zhi Huang*, Yu Han Liu, Zhen Liu, Long Wang, Huang Ling Gu

Keywords:

Electron Probe Analysis, Fluids Sudduction Zone, High-Pressure Veins, Western Tianshan

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