【作者】 王世称； 刘少华； 杨宝俊； 王应太；

【Author】 Wang Shicheng~(1)) Liu Shaohua~(2)) Yang Baojun~(1)) Wang Yingtai~(1)) 1)(Changchun university of science and technology,Changchun 130026) 2)(Institute of Geophysics,Chinese Academy of science,Beijing 100101)

【机构】 长春科技大学； 中国科学院地球物理研究所；

【摘要】 本文阐述了中国大型超大型金矿床具有"鹤立鸡群"的分布特点,根据矿床空间分布特征,将中国已知金矿床划分为8个分布带(A带～H带),具体论述了各个金矿带的区域地球物理场特征和深部地质构造。金矿床分布带的整体地球物理场特征表现为,壳内低阻层顶面埋深、磁性构造层底面埋深、上地幔内低阻层顶面埋深都较浅,均衡重力异常、卫星重力异常和中波长磁异常不是高负异常带,平均地震纵波速度约为6.2～6.4 km/s。其所处的大地构造位置主要为褶皱带、火山岩带以及平移断裂带。用已知金矿床带的深部构造和区域地球物理场特征分析预测了63个未知金矿床单元,并对其中的13个单元进行了综合分析,提出了金矿床找寻的区域和局部规律,并讨论了预测的依据和可能的效果。更多还原

【Abstract】 The key features of Gold deposits belts on regional geophysical field and depth geological structures are elaborated in this paper.According to the characteristics of the space distribution of gold deposits belts,they are divided into 8 belts(from A to H).The key features of gold deposits belts on geophysical fields are shown as follows:The top depth of the resistivity conductive bed inner the earth’s crusts and on the upper mantle are shallow relatively;and the bottom depth of the magnetic structure layer are also shallow.Balanced gravity anomaly,satellite gravity anomaly and medium wave magnetic anomaly are not high-negative anomaly belts; average velocity of the seismic P wave is about 6.2～6.4 km/s.The tectonic location of most gold deposits belts is the fold belts,wrench fault belts and volcanic structure belts.According to the characteristics of known gold deposits belts on the geophysical field and deep toctonics,we can predict some new gold deposits targets.63 gold deposits gold deposit targets are given and in which,13 targets are further discussed.更多还原