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| 兴蒙造山带东缘内生钼矿床的成因类型、成矿年代及成矿动力学背景 | |
| 引用本文： | 孙景贵,张勇,邢树文,赵克强,张增杰,白令安,马玉波,刘勇胜.兴蒙造山带东缘内生钼矿床的成因类型、成矿年代及成矿动力学背景[J].岩石学报,2012,28(4):1317-1332. |
| 作者姓名： | 孙景贵 张勇 邢树文 赵克强 张增杰 白令安 马玉波 刘勇胜 |
| 作者单位： | 1. 吉林大学地球科学学院,长春,130061 2. 中国地质科学院矿产资源研究所,北京,100037 3. 中国地质大学地质过程与矿产资源国家重点实验室,武汉,430074 |
| 基金项目： | 本文受吉林省科技发展规划项目(20100450)、中国地质调查计划项目(资[2010]矿评01-26-06)和国家自然科学基金(40772052、41172072)联合资助. |
| 摘 要： | 兴蒙造山带东缘是中国重要内生多金属成矿区,近年来已发现钼矿床20余座。依据矿床地质、地球化学特征和年代学成果,将该区内生钼矿床类型划分为斑岩型、接触交代热液型和中高温浅成热液型。初步确定斑岩型矿床形成与高钾钙碱性花岗质岩浆作用有关,而接触交代热液型矿床形成与钙碱性花岗质岩浆作用以及围岩性质有关,成矿作用主要发生在195～165Ma和115～110Ma两个区间,成矿物质普遍具有壳幔混合源的特点;而其地球动力学背景分别与古太平洋板块俯冲欧亚大陆和伊泽奈崎板块俯冲欧亚大陆相适应。 |
| 关 键 词： | 内生钼矿类型 成矿期次 成矿动力学背景 兴蒙造山带东缘 |
| 收稿时间： | 6/1/2011 12:00:00 AM |
| 修稿时间： | 2011/10/27 0:00:00 |
Genetic types, ore-forming age and geodynamic setting of endogenic molybdenum deposits in the eastern edge of Xing-Meng orogenic belt |
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| SUN JingGui,ZHANG Yong,XING ShuWen,ZHAO KeQiang,ZHANG ZengJie,BAI LingAn,MA YuBo and LIU YongSheng.Genetic types, ore-forming age and geodynamic setting of endogenic molybdenum deposits in the eastern edge of Xing-Meng orogenic belt[J].Acta Petrologica Sinica,2012,28(4):1317-1332. | |
| Authors: | SUN JingGui ZHANG Yong XING ShuWen ZHAO KeQiang ZHANG ZengJie BAI LingAn MA YuBo and LIU YongSheng |
| Institution: | College of Earth Sciences, Jilin University, Changchun 130061, China;College of Earth Sciences, Jilin University, Changchun 130061, China;Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;College of Earth Sciences, Jilin University, Changchun 130061, China;Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;College of Earth Sciences, Jilin University, Changchun 130061, China;Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China |
| Abstract: | The eastern edge of Xing-Meng orogenic belt in China, is an important polymetallic metallogenic district, where more than 20 large-, medium- and small-scale Mo deposits have been found in recent years. According to geological features, geochemical characteristics and geochronology, the endogenic molybdenum deposits in the region are divided into porphyry type, contact-metasomatic hydrothermal type and medium-high temperature hydrothermal type. The research results show that porphyry deposits are associated with high-potassium calc-alkaline granitic magmas, while contact-metasomatic hydrothermal deposits are related to calc-alkaline granitic magma and the nature of host rocks. Metallogenic materials possess the characteristic of crust-mantle mixing source. The Mo mineralization in the study area mainly occurred in 195~165Ma and 115~110Ma. The corresponding geodynamic mechanisms responsible for the Mo mineralization in different times may be closely related to the subduction of paleo-Pacific plate and Izanagi plate towards the Eurasia continent, respectively. |
| Keywords: | Endogenic Mo deposit types Ore-forming episodes Geodynamic setting The eastern edge of Xing-Meng orogenic belt |
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