青海省都兰县五龙沟地区金矿区域地质特征及找矿标志

Geological characteristics and prospecting signs of gold deposits in Wulonggou area of Dulan County,Qinghai Province

青海省都兰县五龙沟地区金矿区内出露的地层有青白口系丘吉东沟组、长城系小庙组、金水口岩群,岩浆活动强烈,构造发育,研究了青海省都兰县五龙沟地区金矿区域地质特征及找矿标志,在地质特征方面,研究了重力场特征、航磁异常特征、地磁异常特征、激电异常特征和地球化学特征,为研究区进一步开展金矿勘查提供依据。确定了以含矿破碎带的主断裂带—黑色断层泥化带、脆—韧性剪切带内的多方向、多性质张剪性脆性断裂、构造蚀变岩、火山岩组中节理密集带等作为找矿标志,研究对实际工程勘探提供一定的理论基础。

The strata exposed in the gold mining area of Wulonggou area,Dulan County,Qinghai Province include the Qingbaikou Qiujidonggou Formation,the Changcheng Department Xiaomiao Formation and the Jinshuikou rock group.The magmatic activity was strong and the tectonic development has been studied.Dulan County,Qinghai Province has been studied.The geological characteristics and prospecting indicators of the gold deposits in the Wulonggou area.In terms of geological characteristics,gravity field characteristics,aeromagnetic anomaly characteristics,geomagnetic anomaly characteristics,IP anomaly characteristics and geochemical characteristics were studied to further develop gold deposits in the study area.The survey provided the basis.The main fault zone with the ore-bearing fracture zone：the black fault muddy zone,the multi-directional,multi-stretch shear brittle fracture,the tectonic altered rock,the jointed dense zone in the volcanic rock group,etc.The prospecting mark provides a theoretical basis for actual engineering exploration.