| Geological and Geochemical Characteristics of the Cherts in the Mojiang Gold Deposit and Their Implications |
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| 作者姓名： | 谢桂青 胡瑞忠 |
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| 作者单位： | OpemLaboratoryofOreDepositGeochemistry,InstituteofGeochemistry,ChineseAcademyofSciences,Guiyang550002 |
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| 摘 要： | Geological and geochemical characteristics of cherts of the low-middle parts of the Jinchang Formation indicate that cherts are associated with hydrothermal sedimentation,but the middle-upper parts of the Jinchang Formaiton are mixed with normal sediments.The cherts are characterized by high Fe,As,Sb,Si and Ga,low Al and totoal REE,negative Ce anomaly and HREE enrichment.Their δ^18O values show that the forming temperatures of the cherts range from 128℃ tp 146℃.
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| 关 键 词： | 金矿床 地球化学 氧同位素 黑硅石 热液沉降 成矿作用 成矿温度 |
Geological and geochemical characteristics of the cherts in the Mojiang gold deposit and their implications |
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| Guiqing Xie,Ruizhong Hu,weixuan Fang,Liang Qi.Geological and Geochemical Characteristics of the Cherts in the Mojiang Gold Deposit and Their Implications[J].Chinese Journal of Geochemistry,2001,20(3):249-257. |
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| Authors: | Guiqing Xie Ruizhong Hu weixuan Fang Liang Qi |
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| Institution: | 1. Open Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002, Guiyang, China
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| Abstract: | Geological and geochemical characteristics of cherts of the low-middle parts of the Jinchang Formation indicate that cherts are associated with hydrothermal sedimentation, but the middle-upper parts of the Jinchang Formation are mixed with normal sediments. The cherts are characterized by high Fe, As, Sb, Bi and Ga, low Al and total REE, negative Ce anomaly and HREE enrichment. Their δ18O values show that the forming temperatures of the cherts range from 128°C to 146°C. |
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