甘肃合作早子沟特大型金矿床主矿带、主矿体特征及勘查、研究意义剖析  

Study on characteristics and exploration significance of main ore belt and orebody of Zaozigou super large gold deposit in Hezuo,Gansu

作　　者：刘春先[1] 陈耀宇[1] 雒晓刚[1] 梁志录[1] 金鼎国[1] 麻红顺 LIU Chunxian;CHEN Yaoyu;LUO Xiaogang;LIANG Zhilu;JING Dingguo;MA Hongshun(Third Institute Geological and Mineral Exploration of Gansu Provincial Bureau of Geology and Mineral Resources,Lanzhou 730050,Gansu,China)

机构地区：[1]甘肃省地矿局第三地质矿产勘查院,甘肃兰州730050

出　　处：《矿产与地质》2018年第6期969-977,共9页Mineral Resources and Geology

基　　金：中国地质调查局地质调查项目"中国矿产地质与成矿规律综合集成和服务(矿产地质志)"(编号:DD20160346)资助

摘　　要：通过对甘肃早子沟特大型金矿探矿工程控制程度的简要分析,认为矿区勘查程度整体达到详查,这些勘查资料为主矿带、主矿体特征的分析、研究提供了基础。通过对NE向、NW向、SN向和叠加于其上的NWW向4组断裂带所控制的4个矿带的矿化规模、矿化强度等特征的对比分析,认为NE向矿带为矿区的主矿化带。在分析主矿体确定要素的基础上,从矿体规模、平均品位、厚度及品位变化系数、金属量等方面对比评述了各矿带主矿体的特征。本研究利用矿区普查、详查成果,通过对主矿体数量、金属量等在各矿带的空间分布及变化特征的对比分析,初步评价了主矿带、主矿体的勘查效果和勘查、研究意义。Through a brief analysis on the exploration control degree of Zaozigou super large gold deposit,Gansu Province,it is considered that the overall exploration level of the mining area has reached the level of detailed investigation.The exploration data could provide a foundation for studying and analyzing the characteristics of the main ore belt and main orebody of this area.Based on the comparison and analysis of the mineralization scale and mineralization intensity of the four ore belts controlled by the NE-trending,NW-trending,north-south direction and the overlaying NWW-trending fault zone,considered that the NE-trending belt is the main mineralization zone of the mining area.On the basis of analyzing the determinants of the main orebody,the characteristics of the main orebody of each ore belt were compared and reviewed in terms of the size,average grade,thickness,grade change coefficient and metal quantity of orebody.In this study,using the results of mining area survey and detailed survey,a contrastive analysis on the spatial distribution and variation characteristics of the main orebody and metal quantity in each ore belt were made.Got the preliminary evaluation of the exploration effect and research significance of the main ore belt and orebody.

关 键 词：早子沟特大型金矿 主矿带特征 主矿体特征 勘查意义 研究意义 甘肃 

分 类 号：P618.51[天文地球—矿床学]