内蒙古哈达门沟金矿床构造控矿规律及成矿预测

来源期刊：黄金2010年第12期

论文作者：辛向东 刘纲

文章页码：9 - 14

关键词：哈达门沟金矿床； 构造控矿规律； 找矿标志； 找矿靶区； 内蒙古

Key words：Hadamengou gold deposit； structural ore-controlling law； prospecting indicator； prospecting target； Inner Mongolia

摘    要：哈达门沟金矿区构造格架由乌拉山复式背斜、山前大断裂、控岩断裂、控矿断裂及成矿后断裂等五大构造系统组成,矿床属山前大断裂引导产生的印支—燕山期构造-岩浆活动产物。矿脉受山前大断裂活动派生的次级构造和变质岩片理、不同岩性界面等构造薄弱面联合控制,在空间上具有南北成带、斜列和等距性分布规律,矿化则具有分段富集、向东侧伏、西高东低和上金下钼等特点。据上述成矿规律,在全区圈定3个找矿远景区,定位预测了山前钾化带和13号脉等矿脉深部找矿靶区。

Abstract: The structure frame of Hadamengou gold deposit is formed by Wulashan compound anticline,Shanqian major fault,rock-controlling fault,ore-controlling fault and post-metallogenic fault.The deposit is the product of Indosinian and Yanshanian structure-magmatic activity caused by Shanqian major fault.The ore veins are controlled by the secondary structures,metamorphic rock schistosity,different-lithology interfaces and other weakness structure planes.The spatial laws of the veins are N-S belt,diagonal and isometry.The metallogenic characters are subsection enrichment,eastward lateral trending,west high-east low and top gold-bottom molybdenum.Based on the metallogenic laws,3 prospecting areas are delineated,the Shanqian kalium belt and deep prospecting targets,such as No.13 vein,are forecast and orientated.