| 尉犁蛭石矿床的地质特征及成因探讨 |
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| 引用本文： | 陈国耀.尉犁蛭石矿床的地质特征及成因探讨[J].新疆地质,1989(1). |
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| 作者姓名： | 陈国耀 |
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| 作者单位： | 新疆维吾尔自治区地质矿产局第三地质大队 |
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| 摘 要： | 新疆尉犁蛭石矿是个大型矿床,含矿岩体为晚元古代超基性杂岩,长4Km,宽200—600m,具分带性,外带为透辉岩,内带为金云母岩和碳酸岩.蛭石矿主要分布在岩体内带.近地表10m品位极富.矿石质量以膨胀Ⅰ级品为主,膨胀10—21倍,最大31.9倍;下部品位贫,膨胀性差,金云母为岩浆晚期结晶而成.蛭石由金云母风化而来.
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| 关 键 词： | 晚元古代超基性杂岩 金云母岩 蛭石 磷灰石 新疆 |
G EOLOGIC FEATURES OF THE VERMICULITE DEPOSIT IN WEILI AND IT'S GENETIC REASONING |
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| Chen Guoyao.G EOLOGIC FEATURES OF THE VERMICULITE DEPOSIT IN WEILI AND IT'S GENETIC REASONING[J].Xinjiang Geology,1989(1). |
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| Authors: | Chen Guoyao |
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| Abstract: | The vermiculite deposit in Weili is a large one. The ore-bearing rock body Comprised Late Proterozoic ultrabasic complex, it is 4 km long and 200-600m wide, and characteristic of zonation, The outer zone is made of bistagite and the inner zone-phlogopite rock ar.d carbcnatite with a very high grade at lom below the sur face. The ore grade is dominated by the products of the first degree expansion with the swelling of 10-20 up to 31.9 times. The grade is lowered and the swelling comes poorer downward below 10m. Phlogoplte was formed in the opimagmatic crystallization. Vermiculite is the weathering product of phlogopite. |
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| Keywords: | Late Proterozoic ultrabasic complex phlogopite vermiculite deposite apatite Xinjiang |
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