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| 广东高要河台金矿同位素年代学研究 | |
| 引用本文： | 王成辉,张长青,王永磊,邱小平,龚朝阳.广东高要河台金矿同位素年代学研究[J].大地构造与成矿学,2012,36(3):427-433. |
| 作者姓名： | 王成辉 张长青 王永磊 邱小平 龚朝阳 |
| 作者单位： | 1. 国土资源部成矿作用与资源评价重点实验室,中国地质科学院矿产资源研究所,北京100037 2. 中国地质科学院地质研究所,北京,100037 3. 广东河台金矿,广东高要,526127 |
| 基金项目： | 全国危机矿山接替资源找矿项目“桂东-粤西地区铅锌金等矿床成矿规律总结研究”，中国地质大调查项目“我国重要矿产和区域成矿规律研究”，深部探测技术与实验专项“南岭成矿带地壳岩浆系统结构探测实验” |
| 摘 要： | 河台金矿是桂东-粤西成矿带中代表性大型金矿之一,其容矿围岩主要是震旦系糜棱岩,矿体受到NEE向剪切带控制。本次研究获得河台金矿云西矿段混合岩中黑云母Ar-Ar坪年龄为161.8±1.2Ma;河台金矿河海矿段富硫化物石英脉中绢云母Ar-Ar坪年龄为157.1±1.0Ma;首次测得河台金矿河海矿段富硫化物石英脉中磁黄铁矿的Re-Os等时线年龄为175.5±4.3Ma。结合前人工作,研究表明河台金矿的形成可能经历了一个复杂的演变过程,区域剪切作用主要集中在印支期-燕山早期,矿床的成矿时代可能主要集中在175Ma左右。 |
| 关 键 词： | Ar-Ar法 Re-Os法 成矿时代 河台金矿 粤西 |
Chronological Research of the Hetai Gold Mine in Gaoyao County, Guangdong Province |
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| WANG Chenghui , ZHANG Changqing , WANG Yonglei , QIU Xiaoping , GONG Chaoyang.Chronological Research of the Hetai Gold Mine in Gaoyao County, Guangdong Province[J].Geotectonica et Metallogenia,2012,36(3):427-433. | |
| Authors: | WANG Chenghui ZHANG Changqing WANG Yonglei QIU Xiaoping GONG Chaoyang |
| Institution: | 1.MLR Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China;2.Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China;3.Guangdong Hetai Gold Mine,Gaoyao 526127,Guangdong,China) |
| Abstract: | The Hetai gold deposit in Guangdong province is one of the most important gold deposits in the Guidong-Yuexi orogenic belt.The deposit hosted in Sinian metamorphic rocks is controlled by the NEE-trending shear zone.Based on previous studies and new Ar-Ar age of the biotite from the Au-bearing shear zone,the authors propose that the Hetai gold deposit was formed in a prolonged period,which is also supported by the fact that the shear zone initiated earlier than 150 Ma ago.This paper reported the Re-Os age of the pyrrhotites from Au-bearing sulfide-rich quartz veins for the first time.The result indicates the main metallogenic epoch of the Hetai gold deposit is about 175 Ma. |
| Keywords: | Ar-Ar Re-Os metallogenic epoch Hetai gold mine Guangdong |
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