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Global Geology 2015, 18(4) 203- DOI:
ISSN: 1673-9736 CN: 22-1371/P |
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Study on fluid inclusions of Qiangsheng gold deposit in Fushun of Liaoning |
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CHEN Yang,WANG Li,ZHANG Yajing,XU Chunliang,JU Mingshen,LIU Kuoliang,LI Qiang,SUN Dexiang and ZHAO Chenghui |
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1. College of Earth Sciences,Jilin University,Changchun 130061,China;
2. Jinyang Mining Limited Company,Fushun 113106,Liaoning,China |
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Abstract:
The Qiangsheng gold deposit belongs to quartz vein type. The fluid inclusions consist of four types: aqueous single-phase inclusions,aqueous two-phase inclusions,carbonated two-phase inclusions and carbonated three-phase inclusions. The fluid inclusions are characterized by low salinity ( 5%-9%NaCl eqv) ,low density ( 0. 66--0. 72 g /cm3 ) and medium temperature ( 210℃--250℃) . The pressure of ore-forming is 60--95 MPa and the metallogenic depth is about 5. 49--7. 56 km. During the mineralizing process,ore-forming fluid underwent fluid unmixing in CO2-H2O-NaCl system. The stable isotope results indicate that the ore-forming fluids mainly generated from mantle,with the participation of a small amount of atmospheric water. Comprehensive studies have suggested that Qiangsheng gold deposit belongs to the type of mesothermal hydrotherm with mantlederived fluid participating in mineralization. |
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Keywords:
fluid inclusion
ore-forming fluid
Qiangsheng gold deposit
Fushun
Liaoning
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Received Revised Online: |
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