| 坪定砷金矿床氧化带的表生地球化学作用 |
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| 引用本文： | 林宝增.坪定砷金矿床氧化带的表生地球化学作用[J].甘肃地质学报,1993,2(2):67-74. |
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| 作者姓名： | 林宝增 |
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| 作者单位： | 甘肃省地质矿产局第三地质队 合作 |
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| 摘 要： | 坪定砷金矿床的浅部矿体在表生地球化学条件下,经受了氧化—淋滤与次生富集两种相互矛盾的地质作用。金和砷总的趋势是淋失,但在某些部位也产生了一定的次生富集作用。经过表生作用以后,矿体中元素之间的关系也发生了显著变化。但由于本区的剥蚀速率较快,浅部矿石不断更新;赋矿地层的岩性以泥板岩为主,构造裂隙不很发育,地下水的泄水作用受阻,第四系冰碛层的覆盖也对矿体起到一定的保护作用,故总的看来,现存于氧化带的矿石,其氧化程度并不是很高。
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| 关 键 词： | 表生地球化学作用 元素的淋失与富集 元素之间关系的变化 |
THE HYPERGENE GEOCHEMICAL PROCESS IN OXIDIZED ZONE OF THE ARSENIC -GOLD DEPOSIT IN PINGDING, GANSU |
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| Lin Baozeng.THE HYPERGENE GEOCHEMICAL PROCESS IN OXIDIZED ZONE OF THE ARSENIC -GOLD DEPOSIT IN PINGDING, GANSU[J].Acta Geologica Gansu,1993,2(2):67-74. |
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| Authors: | Lin Baozeng |
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| Institution: | Lin Baozeng(No. 3Geological Team, Geology and Mineral Resources Bureau of Gansu Province, Hezuo 747000) |
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| Abstract: | The paper passes through the practical material to have analyzed the geochemical factors in both aspect for the advantage of adtivation-migration and enrichment of gold in oxidized zone of the arsenic-gold deposit in Pingding, expounded the hypergene geochemical role feature on oxidized zone and changes have taken place in relations between the various elements in the ore. It is make known in total that the gold element is continuous undergoing leach run off and produce secondary enrichment in some place at the same time. |
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| Keywords: | Hypergene geochemical process Leaching out and enrichment of elements Changes of relation between various elements |
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