长坑金矿床地质特征与成因探讨

    GEOLOGICAL CHARACTERISTICS AND GENESIS OF CHAN GKENG GOLD DEPOSIT IN GUANGDONG

    • 摘要: 通过含矿复成因角砾岩带特征,金矿物,微量元素,稀土,硫、氢、氧稳定同位素和流体包裹体研究,确定成矿物质主要来自下石炭统碳酸盐岩,滑脱断裂叠加不整合面为控矿构造,矿体主要赋存在复成因角砾岩带中,成矿流体以大气水为主,矿床成因属浅成低温热液矿床.

       

      Abstract: Through the research on the features of ore-bearing genetically complex breccia zone, gold minerals, trace elements, REE fluid inclusions, and S, H and O isotopes, the authors conclude that the ore-forming material were mainly derived from carbo nate rocks of lower Carboniferous. Superim position of detachment fault on unconfo rmable contact controlled the ore. The orebody is hosted mainly by the breccia zone. Mineralizing fluid was dominated by meteoric water. The genesis belongs to epithermal deposit.

       

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