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| 鄂东南矿集区程潮大型矽卡岩铁矿的矿物学特征及其地质意义 | |
| 引用本文： | 姚磊,谢桂青,张承帅,刘佳林,杨海波,郑先伟,刘晓帆.鄂东南矿集区程潮大型矽卡岩铁矿的矿物学特征及其地质意义[J].岩石学报,2012,28(1):133-146. |
| 作者姓名： | 姚磊 谢桂青 张承帅 刘佳林 杨海波 郑先伟 刘晓帆 |
| 作者单位： | 1. 地质过程与矿产资源国家重点实验室,中国地质大学地球科学与资源学院,北京100083 2. 中国地质科学院矿产资源研究所,国土资源部成矿作用和资源评价重点实验室,北京100037 3. 武汉钢铁集团矿业有限责任公司程潮铁矿,鄂州,436051 4. 北京华油联合燃气开发有限公司,北京,100101 |
| 基金项目： | 本文受国土资源部公益性行业课题(200911007-18)、科学技术部973课题(2012CB416802)、中央级公益性科研院所基本科研业务费专项资金(K0902)和地质大调查项目(1212011120994)联合资助. |
| 摘 要： | 程潮铁矿是鄂东南地区典型的矽卡岩铁矿,迄今为止对其矽卡岩矿物学特征研究较少。本文以程潮铁矿主要矽卡岩矿物为研究对象,利用电子探针技术对该矿矽卡岩矿物学特征进行了研究。电子探针分析结果表明:程潮铁矿石榴石和辉石分别以钙铁榴石和透辉石为主;角闪石主要是韭闪石,其次为铁韭闪石、透闪石、阳起石。其中,早期矽卡岩阶段的石榴石和辉石分别以钙铁榴石和透辉石为主;晚期脉状矽卡岩阶段的石榴石端员组分介于钙铁榴石和钙铝榴石之间,而辉石则相对于早期矽卡岩阶段的辉石更趋近于钙铁辉石端员。通过矽卡岩矿物学特征研究表明,花岗岩对矽卡岩和矿体的形成起到了重要作用。 |
| 关 键 词： | 矽卡岩 矿物学 程潮铁矿 鄂东南 |
| 收稿时间： | 2011/9/18 0:00:00 |
| 修稿时间： | 2011/11/30 0:00:00 |
Mineral characteristics of skarns in the Chengchao large-scale Fe deposit of southeastern Hubei Province and their geological significance |
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| YAO Lei,XIE GuiQing,ZHANG ChengShuai,LIU JiaLin,YANG HaiBo,ZHENG XianWei and LIU XiaoFan.Mineral characteristics of skarns in the Chengchao large-scale Fe deposit of southeastern Hubei Province and their geological significance[J].Acta Petrologica Sinica,2012,28(1):133-146. | |
| Authors: | YAO Lei XIE GuiQing ZHANG ChengShuai LIU JiaLin YANG HaiBo ZHENG XianWei and LIU XiaoFan |
| Institution: | State Key Laboratory of Geological Processes and Mineral Resources, School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;State Key Laboratory of Geological Processes and Mineral Resources, School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;State Key Laboratory of Geological Processes and Mineral Resources, School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;State Key Laboratory of Geological Processes and Mineral Resources, School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;Chengchao Iron Mine of Wuhan Iron & Steel Group Minerals Co., Ltd, Ezhou 436051, China;Beijing Huayou Union Gas Development Co., Ltd, Beijing 100101, China |
| Abstract: | Chengchao Fe deposit is a typical skarn deposit in southeastern Hubei Province. Electron microprobe analyses show that the end member of garnets in the skarn stage is dominated by andradite, with minor grossular. The clinopyroxene comprises mainly diopside, with minor hedenbergite. The amphibole in the Chengchao Fe deposit mostly belongs to calcic amphiboles, such as pargasite, tremolite, actinolite and ferropargasite. The end member of garnets in the vein skarn is between andradite and grossular. Vein clinopyroxene is dominated by diopside. Characteristics of skarn in Chengchao Fe deposit shows that granite may play a key role in the formation of skarns and ore bodies. |
| Keywords: | Skarn Mineralogy Chengchao Fe deposit Southeastern Hubei Province |
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