| 内蒙古东部二连浩特-乌兰浩特地区金矿化特征的初步研究 |
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| 引用本文： | 赵利青,孙世华,肖成东,雷时斌,毛骞,方从益.内蒙古东部二连浩特-乌兰浩特地区金矿化特征的初步研究[J].地质与资源,2004,13(4):222-228. |
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| 作者姓名： | 赵利青 孙世华 肖成东 雷时斌 毛骞 方从益 |
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| 作者单位： | 1. 武警黄金地质研究所, 河北廊坊 065000;2. 中国科学院地质与地球物理研究所矿产资源研究重点实验室, 北京 100029;3. 天津华北地质勘查局, 天津 300181;4. 武警黄金指挥部, 北京 100029 |
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| 基金项目： | 中国科学院资源环境重大项目KZ951-B1-404，武警黄金指挥部项目HJ99-6联合资助. |
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| 摘 要： | 研究区属含古老地块并经中生代改造的中古生代造山带,存在金、锡等丰度较高的锡林浩特元古宙杂岩、古生代蛇绿岩及板块缝合带、二叠系火山岩、中生代伸展构造背景下的大规模火山-侵入活动及锡多金属成矿作用.本区金矿化类型主要有:韧性剪切带中的石英脉型、蚀变岩型金矿,产于幔源中基性侵入岩中的铜金矿,燕山晚期斑岩型铜金矿,与燕山期次火山岩浆活动有关的脉状铜矿床中的伴生金矿化,微细浸染型金矿化,浅成低温热液型金矿化等.研究区金矿成矿时代可分为242~229Ma、169~161.8Ma、132~159Ma (可能以130~140Ma为主)、127~109.2Ma四个区间.认识到存在印支期成矿、燕山期多阶段成矿等特点对于区内金矿勘查有重要意义.新发现7个矿床(点)的伴生金矿化.毛登、大井等多金属矿床的伴生金矿化具有重要的潜在工业意义.
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| 关 键 词： | 大兴安岭 内蒙古 成矿地质构造背景 金矿化类型 成矿时代 伴生金矿化 |
| 文章编号： | 1671-1947(2004)04-0222-07 |
| 收稿时间： | 2003-10-30 |
| 修稿时间： | 2003年10月30 |
CHARACTERISTICS OF GOLD MINERALIZATION IN THE ERENHOT-ULANHOT REGION,EASTERN INNER MONGOLIA,CHINA |
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| ZHAO Li qing,SUN Shi hua,XIAO Cheng dong,LEI Shi bin,MAO Qian,FANG Cong yi.CHARACTERISTICS OF GOLD MINERALIZATION IN THE ERENHOT-ULANHOT REGION,EASTERN INNER MONGOLIA,CHINA[J].Geology and Resources,2004,13(4):222-228. |
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| Authors: | ZHAO Li qing SUN Shi hua XIAO Cheng dong LEI Shi bin MAO Qian FANG Cong yi |
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| Institution: | 1. Gold Geological Institute, Langfang 065000, China;2. Research Center for Mineral Exploration, Institute of Geology and Geophysics, CAS, Beijing 100029, China;3. Tianjin Bureau of Geological Exploration, Tianjin 300181, China;4. Gold Administration of China, Beijing 100102, China |
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| Abstract: | The studied area belongs to the Middle Paleozoic orogenic belt containing old block and reformed during Mesozoic era.Xilinhot Proterozoic complex with high Au and Sn content occurs in the region,also with Paleozoic ophiolites,suture belts, Permian volcanic rocks and large scale of Mesozoic magmatic activity and related polymetal mineralization.The types of gold mineralization are as follows: quartz vein type and alteration rock type in shear zones; basic and ultrabasic intrusive rock hosted (high temperature) hydrothermal Fe Cu Au deposit;Yanshanian sub volcanic rock hosted Cu Zn Au deposit and gold mineralization associated with copper deposits,which are related to sub volcanic activity.In addition, sediment hosted Au Sb mineralization and epithermal gold mineralization are also discovered and should be paid great attention to for exploration. Metallogenic ages include four intervals: 242-229 Ma, 169-161.8 Ma,132-159 Ma (mainly 130-140 Ma) and 127-109.2 Ma. |
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| Keywords: | Daxinganling Inner Mongolia types of gold mineralization metallogenic age accompanied gold mineralization |
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