安徽青阳盛公山金多金属矿床特征及潜在矿产资源预测

Characteristics and potential mineral resources of the Shenggongshan gold polymetallic deposit,Qingyang,Anhui

青阳盛公山金多金属矿床长期以来一直被认为是单一的岩浆热液型矿床,近年来勘查发现花岗闪长斑岩及围岩裂隙中也广泛发育金多金属矿化,区内金多金属矿体主要呈浸染状、细脉网脉状产于北东向断裂及派生的次级羽状断裂、剪切裂隙及流体作用形成的裂隙-破裂系统中,具有斑岩型矿床“上脉下体”二元空间结构特征。现有矿体尚未完全控制,本文通过体积法预测地表以下250 m范围内,潜在矿产资源金金属量有望达到中型规模,值得进一步开展工作。

The Shenggongshan gold polymetallic deposit,Qingyang has long been regarded as a single,magmatic hydrothermal type deposit.Exploration in recent years indicates that the gold polymetallic mineralization is also widely developed in the granodiorite porphyry and wall rock fractures,mainly as disseminated,stringer or stockwork ore bodies in the NE-trending faults and their secondary feather fractures,shear fractures,and the fissures and fractures formed by the fluid,exhibiting the binary spatial structure of a porphyry deposit.The existing ore bodies have not been fully controlled.The gold metal resource is predicted to be medium-sized in quantity in the subsurface of 0~-250 m using volumetric method.Further work is encouraged.