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| 黑龙江金厂金矿床18号矿体围岩蚀变及短波红外光谱特征 | |
| 引用本文： | 孙雨沁,许虹,李胜荣,张岩.黑龙江金厂金矿床18号矿体围岩蚀变及短波红外光谱特征[J].矿物岩石地球化学通报,2012,31(1):14-22. |
| 作者姓名： | 孙雨沁 许虹 李胜荣 张岩 |
| 作者单位： | 1. 山东省地质科学实验研究院,济南250013;山东省金属矿产成矿地质过程与资源利用重点实验室,济南250013;中国地质大学地质过程与矿产资源国家重点实验室,北京100083 2. 中国地质大学地球科学与资源学院,北京100083;中国地质大学地质过程与矿产资源国家重点实验室,北京100083 3. 山东省地质科学实验研究院,济南250013;山东省金属矿产成矿地质过程与资源利用重点实验室,济南250013 |
| 基金项目： | 公益性行业科研专项，国家自然科学基金重大研究计划资助项目，高等学校学科创新引智计划 |
| 摘 要： | 金厂金矿18号矿体围岩蚀变发育顺序从早到晚为:钾化、硅化、绿泥石化、绢云母化、碳酸盐化、高蛉土化,从内往外依次发育青磐岩化带、绢英岩化带和钾化带.矿化出现在泥化和绢英岩化叠加处,以及泥化和青磐岩化叠加处.通过短波红外光谱测试技术,识别出本矿区有26种蚀交矿物,其中白云母含量与金矿体呈正相关,说明绢云母化与金矿化关系密切；青磐岩化带蚀变矿物组合为绿泥石+绿帘石+伊利石±埃洛石±蒙脱石±石英；钾化带蚀变矿物组合为钾长石+高岭石+埃洛石±蒙脱石±石英；绢英岩化带蚀变矿物组合为绢云母+埃洛石±蒙脱石±高岭石±石英. |
| 关 键 词： | 金厂金矿 围岩蚀变 PIMA 蚀变矿物 |
Characteristics of Wall-Rock Alteration and the Shortwave Infrared Spectra for Minerals in the 18th Orebody, Jinchang Gold DepositHeilongjiang Province |
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| SUN Yu-qin , XU Hong , LI Sheng-rong , ZHANG Yan.Characteristics of Wall-Rock Alteration and the Shortwave Infrared Spectra for Minerals in the 18th Orebody, Jinchang Gold DepositHeilongjiang Province[J].Bulletin of Mineralogy Petrology and Geochemistry,2012,31(1):14-22. | |
| Authors: | SUN Yu-qin XU Hong LI Sheng-rong ZHANG Yan |
| Institution: | 1,2 1.Shandong Institute and Laboratory of Geological Sciences,Jinan 250013,China;2.Shandong Key Laboratory of Geological Processes and Resource Utilization in Metallic Minerals,Jinan 250013,China; 3.School of the Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China;4.State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Beijing 100083,China |
| Abstract: | The wall-rock alteration sequence of the 18th orebody in the Jinchang gold deposit is feldspathization,silicification,chloritization,sericitization,calcitization and kaolinite,including propylitic,phyllic and potassic alteration zones from central to outword parts of the complex.The gold mineralization occurs mainly in the overlapped parts of argillization and phyllic alteration zones and of argillization and propylitic alteration zones.26 species of hydrothermal alteration minerals were identified by the short-wave infrared spectroscope technique.The positive correlation of muscovite and Au contents in these minerals suggested that the gold mineralization is closely related with the sericitization.The minerals associated with the propylitic alteration zone are chlorite + epidote + illite ± halloysite ± montmorillonite ± quartz,the minerals in the potassic alteration zone are K-feldspar + kaolinite + halloysite ± montmorillonite ± quartz and the minerals in the phyllic alteration zone are muscovite + halloysite ± montmorillonite ± kaolinite ± quartz. |
| Keywords: | Jinchang gold deposit wall-rock alteration PIMA alterative minerals |
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