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| 宁镇中段矽卡岩的石榴子石与成矿关系研究 | |
| 引用本文： | 张术根,杨惠钫,丁存根,马春,徐忠发. 宁镇中段矽卡岩的石榴子石与成矿关系研究[J]. 矿物岩石, 2009, 29(2) |
| 作者姓名： | 张术根 杨惠钫 丁存根 马春 徐忠发 |
| 作者单位： | 中南大学地学与环境工程学院,湖南,长沙,410083;有色金属华东地质勘察局,江苏,南京,210007 |
| 基金项目： | 江苏省财政补助地勘项目 |
| 摘 要： | 宁镇中段铜多金属矿床与矽卡岩、尤以石榴子石矽卡岩关系密切，故从矿物学角度研究该区矽卡岩的石榴子石与成矿的关系具有现实找矿意义。通过现场观察、光学显微镜、扫描电镜、X射线衍射分析、微区能谱分析及成矿元素含量分析等，对宁镇中段矽卡岩石榴子石的形貌、结构、成分、种类及其与成矿的关系进行研究，结果表明：本区石榴子石属钙铝-钙铁榴石系列，但铜矿化区的石榴子石均属其中的钙铁榴石亚种，并且铜矿化区石榴子石的铜含量远远低于无矿化区石榴子石。研究认为，成矿元素在矽卡岩期的富集或分散趋势是石榴子石成矿元素含量高低的关键原因，若岩浆分异出来的成矿元素总量相同，则在矽卡岩期即富集到石榴子石等矿物使其成矿元素较高不利于成矿，反之则石榴子石成矿元素较低而矽卡岩期后热液具有利物质条件利于成矿。 |
| 关 键 词： | 宁镇中段 矽卡岩 钙铁榴石 钙铝榴石 成矿元素 |
RESEARCH ON RELATIONSHIP BETWEEN MINERALIZATION AND GARNET IN SKARN IN CENTRAL PART OF NINGZHEN AREA |
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| ZHANG Shu-gen,YANG Hui-fang,DING Cun-gen,MA Chun,XU Zhong-fa. RESEARCH ON RELATIONSHIP BETWEEN MINERALIZATION AND GARNET IN SKARN IN CENTRAL PART OF NINGZHEN AREA[J]. Journal of Mineralogy and Petrology, 2009, 29(2) | |
| Authors: | ZHANG Shu-gen YANG Hui-fang DING Cun-gen MA Chun XU Zhong-fa |
| Affiliation: | ZHANG Shu-gen1,YANG Hui-fang1,DING Cun-gen2,MA Chun2,XU Zhong-fa2 1.School of Geosciences , Environmental Engineering,Central South University,Changsha 410083,China,2.Eastern china Geological &Mining Oraganization for Non-ferrous Metals,Nanjing 210007 |
| Abstract: | Garnet is a common mineral in most skarn deposits.The morphology,structure,composition,end-members and the mineralization of garnet in the central part of Ningzhen region are researched through the ways of situ observation,optical microscope,SEM,X-ray diffraction,EDX and the chemical analysis for ore-forming metallic elements.The result shows that the garnet belongs to grossular-andradite series.The garnet in Cu skarn deposits all belong andradite subspecies and it contains less Cu in Cu skarn deposits than... |
| Keywords: | Central Part of Ningzhen area skarn andradite grossular ore-forming metallic elements |
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