| 安徽贵池铜山矽卡岩铜矿石榴石及其环带研究 |
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| 引用本文： | 邱瑞龙.安徽贵池铜山矽卡岩铜矿石榴石及其环带研究[J].岩石矿物学杂志,1988,7(3):244-252. |
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| 作者姓名： | 邱瑞龙 |
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| 作者单位： | 安徽省地质科学研究所 |
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| 摘 要： | 研究区为矽卡岩铜矿床,岩体与围岩接触带石榴石矽卡岩十分发育。通过类质同像端员分子百分比计算,石榴石划分为钙铁榴石、钙铝榴石及钙铝—钙铁榴石三种类型,其中钙铝—钙铁榴石是本区常见的石榴石类型。发育于矽卡岩晶洞或空隙中的半自形—自形石榴石具明显的非均质性及发育良好的环带。环带状石榴石CaFe及CaAl端员组分具有三种变异方式。研究表明,石榴石环带及其非均质性不仅与石榴石类质同像端员分子百分比组成有关,而且与石榴石的生成条件有关。
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| 关 键 词： | 矽卡岩铜矿床 石榴石 环带 成因 |
A Study of Garnets and Their Zonal Structure in the Tongshan Skarn Type Copper Ore Deposit, Guichi County |
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| Qiu Ruilong.A Study of Garnets and Their Zonal Structure in the Tongshan Skarn Type Copper Ore Deposit, Guichi County[J].Acta Petrologica Et Mineralogica,1988,7(3):244-252. |
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| Authors: | Qiu Ruilong |
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| Institution: | Anhui Institute of Geological Sciences |
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| Abstract: | The Tongshan skarn type copper deposit in Guichi county has well-developed garnet skarn zone. Garnets in this area can be classified into three types, i. e., andradite, grossularite and andradite-grossularite, of which the last type is most commonly seen. The massive garnets are isotropic, while subhedraleuhedral garnets are anisotropic with well-developed zonal structure. According to the calculation of isomorphic end molecule percentage of garnets, the zoned garnets have three variation types in their molecule components. Studies show that the zonation and nonhomogeneity of garnets are related not only to their isomorphic molecule percentage, but to their formation environment as well. |
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| Keywords: | skarn copper deposit garnet zone genesis |
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