Study on high saline ore-forming fluid and its deep-source characteristics of typical gold deposits in Devonian, south Qinling, China.

被引：0
|
作者：
Xie, YL [1 ]
Qian, DY [1 ]
Xu, JH [1 ]
机构：
[1] Univ Sci & Technol Beijing, Resources Engn Sch, Beijing 100083, Peoples R China
来源：
ACTA PETROLOGICA SINICA | 2000年 / 16卷 / 04期
关键词：
gold deposits; Devonian; South Qinling; high saline aqueous inclusion; deep source fluid;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
High salinity fluid inclusions containing daughter minerals have been found in quartz and ankerite of main mineralizing stages, Taibai and Baguamiao gold deposits of Shaanxi province, located in South Qinling. Both deposits occur in Devonian low-grade metamorphic rocks. Daughter minerals were detected as pyrite, ankerite, halite and arsenopyrite by SEM/EDS and EPMA. It is concluded that ore-forming fluid was formed under complex physico-chemical conditions. According to the tectonic setting, mineral association of main mineralizing stages, high PGE content in hydrothermal sulfides, Chondrite-normalized REE pattern of carbonate cement from Taibai gold deposit, carbon isotope characteristics, it is believed that ore-forming fluid has a deep (mantle) source.
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页码：655 / 660
页数：6
相关论文
共 15 条
  • [1] CHEN PR, 1996, CHINESE SCI BULL, V41, P632
  • [2] Chu X, 1995, CHINESE SCI BULL, V40, P62
  • [3] FAN HR, 1998, GEOLOGICAL SCI TECHN, V17, P111
  • [4] Irianto B, 1995, AUSTRALAS I MIN MET, V95, P299
  • [5] KHIN Z, 1996, ORE GEOL REV, V10, P251
  • [6] Liu W.J., 1997, J CHENGDOU U TECH, V24, P65
  • [7] Lu WC, 1986, STABLE ISOTOPE GEOCH
  • [8] MAEDA H, 1997, EOS T AGU S, V78, pS335
  • [9] HYDROGEN MOVEMENT INTO AND OUT OF FLUID INCLUSIONS IN QUARTZ - EXPERIMENTAL-EVIDENCE AND GEOLOGIC IMPLICATIONS
    MAVROGENES, JA
    BODNAR, RJ
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 1994, 58 (01) : 141 - 148
  • [10] Geology, zonation, and fluid evolution of the big Gossan Cu-Au skarn deposit, Ertsberg district: Irian Jaya
    Meinert, LD
    Hefton, KK
    Mayes, D
    Tasiran, I
    [J]. ECONOMIC GEOLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS, 1997, 92 (05): : 509 - 534
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