| 江西银山外围地层中金的地球化学降低场及其成矿意义 |
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| 引用本文： | 华仁民,陈克荣,赵连泽. 江西银山外围地层中金的地球化学降低场及其成矿意义[J]. 矿床地质, 1993, 12(4): 289-296 |
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| 作者姓名： | 华仁民 陈克荣 赵连泽 |
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| 作者单位： | 南京大学地球科学系，南京大学地球科学系，南京大学地球科学系 |
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| 摘 要： | 通过对江西银山矿区外围２２５ｋｍ＾２范围内２１３个双桥山群地层样品的金含量分析，获得了明显的围绕矿区展布的金地球化学降低及其含量梯度变化，从而证实双桥山群为银山矿床的金矿化提供了成矿物质。作者根据这一降低场的性质，对银山的蚀变矿化特征、ＮＥ向断裂构造的控矿作用以及找矿方向等进行了讨论。
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| 关 键 词： | 双桥山群 金 江西 矿化 |
Geochemlcal gold depleted zone around the Yinshan ore district,Jiangxi Province,and its metallogenic significance |
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| Abstract: | Based on gold analyses of 213 samples from the Shuangqiaoshan Group in an area of 225 km2 centered on the Yinshan polymetallic district, Jiangxi Province, the present paper describes a distinct geochemical gold depleted zone that exists around the ore district, suggesting that the Shuangqiaoshan Group must have been an important gold source bed for the Yinshan ore deposit. In the light of characteristics of this gold-depleted zone and its gradient, a discussion is given concerning the alteration-mineralization features of the Yinshan deposit, the ore-controlling action of the NE-trending faulted zone and the possible target area for further ore prospecting. |
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