岩屑地球化学测量在甘肃北山干旱戈壁荒漠区的找矿效果——以三白墩地区金砷矿的发现为例

雷自强, 陈杰, 陈世明, 方成豪, 杨镇熙, 王振

Application of geochemical survey of lithic fragments in ore prospecting in arid Gobi desert of the Beishan area, Gansu Province: A case study of the discovery of the gold-arsenic deposit in Sanbaidun area

LEI Zi-Qiang, CHEN Jie, CHEN Shi-Ming, FANG Cheng-Hao, YANG Zhen-Xi, WANG-Zhen

图2 三白墩一带1:5万水系沉积物测量综合异常 1—第四系;2—敦煌岩群B岩组;3—敦煌岩群C岩组;4—正长花岗岩;5—石英二长闪长岩;6—石英闪长岩;7—英云闪长岩;8—二长花岗岩;9—花岗闪长岩;10—花岗岩;11—斑状花岗岩;12—斑状二长花岗岩;13—二长花岗质糜棱岩;14—实测正断层;15—实测右行平移断层;16—性质不明断层;17—糜棱岩化带;18—综合异常位置及编号

Fig.2 Comprehensive anomaly map of 1:50 000 stream sediment survey in Sanbaidun area 1—Quaternary system; 2—rock group B of Dunhuang rock group; 3—rock group C of Dunhuang rock group; 4—syenogranite; 5—quartz monzonite diorite; 6—quartz diorite;7—tonalite; 8—monzogranite; 9—granodiorite; 10—granite; 11—porphyritic granite; 12—porphyritic monzogranite; 13—monzonitic granitic mylonite; 14—measured normal fault; 15—measured right lateral translation fault; 16—faults of unknown nature; 17—mylonitization zone; 18—comprehensive abnormal location and number