| 广西大厂沉积-热液叠加型锡矿床的成矿模拟实验 |
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| 引用本文： | 陈骏,周怀阳,吴厚泽,曾骥良.广西大厂沉积-热液叠加型锡矿床的成矿模拟实验[J].桂林工学院学报,1989(4). |
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| 作者姓名： | 陈骏 周怀阳 吴厚泽 曾骥良 |
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| 作者单位： | 南京大学
(陈骏，周怀阳)，中国有色金属工业总公司矿产地质研究院
(吴厚泽)，中国有色金属工业总公司矿产地质研究院(曾骥良) |
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| 摘 要： | 广西大厂锡石硫化物矿床是在泥盆系同生沉积的基础上,经燕山晚期花岗岩热液的改造和叠加形成的。成矿模拟实验结果表明:矿床中同生沉积的黄铁矿在热流的作用下,一方面相变为磁黄铁矿,另一方面作为碱性的地球化学垒,促使晚期含锡热液卸载、沉淀;酸碱度的变化是控制含矿溶液在层状硫化物矿体中叠加矿化的主要因素。
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| 关 键 词： | 锡矿床 层控矿床 成矿溶液 模拟实验 广西 大厂 |
ORE-FORMING SIMULATING EXPERIMENTS OF DACHANG STRATA-BOUND TIN DEPOSITS, GUANGXI |
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| Chen Jun,Zhou Huaiyang,Wu Houze,Zeng Jiliang Nanjing University Research Institute of Geology for Mineral Resources,Non-ferrous Metals Industry Corporation,China.ORE-FORMING SIMULATING EXPERIMENTS OF DACHANG STRATA-BOUND TIN DEPOSITS, GUANGXI[J].Journal of Guilin University of Technology,1989(4). |
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| Authors: | Chen Jun Zhou Huaiyang Wu Houze Zeng Jiliang Nanjing University Research Institute of Geology for Mineral Resources Non-ferrous Metals Industry Corporation China |
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| Abstract: | The geological survey and geochemical researches show that Dachangtin deposits are controlled by Devonian tin-bearing stratiform sulfidesfollowed by transformation and superimposition of tin-bearing hydrother-mal solutions derived from Late Yenshanian granites. Simulation experi-ments reveal that, under the impact of heat current some synsedimentarypyrites carried from the straitiform sulfides can, on the one hand. betransformed into pyrrhotites and on the other hand, be acted as analkaline geochemical barrier. or a neutralizer, resulting in the precipita-tion of cassiterites from acid tin-bearing solutions. |
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| Keywords: | tin ore deposit strata-bound ore deposit ore-forming solution simulation expetiment Guangxi Dachang |
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