东至县花山地区金矿体特征及金的成因探讨  

Discussion on the characteristics of gold deposits and the genesis of gold in the Huashan area of Dongzhi County

作　　者：钟光杰 郑磊[1] 杜志正 ZHONG Guang-jie;ZHENG Lei;DU Zhi-zheng(Geological Team of Anhui Provincial Geological and Mineral Exploration Bureau,Chizhou 247100,China)

机构地区：[1]安徽省地质矿产勘查局324地质队,安徽池州247100

出　　处：《世界有色金属》2024年第12期96-98,共3页World Nonferrous Metals

摘　　要：花山金矿地区大地构造位置处于江南过渡带南部,江南深大断裂南侧,东至断裂西侧。矿体受近东西向断层控制,含矿岩石为早寒武世杨柳岗组条纹状泥灰岩、粘土页岩。主要矿石矿物为黄铁矿、毒砂、辉锑矿等。其中花岗闪长斑岩黄铁矿化发育,绢英岩化发育,并伴随较普遍的细脉浸染状金矿化,具有斑岩型金矿特征,在江南过渡带应把中酸性斑岩体作为寻找斑岩型金矿的重点。找矿标志有构造、岩性、蚀变等。The tectonic position of the Huashan gold mine area is located in the southern part of the Jiangnan transition zone,on the south side of the Jiangnan deep fault,and from the east to the west side of the fault.The ore body is controlled by nearly east-west trending faults,and the ore bearing rocks are the early Cambrian Yangliugang Formation striped mudstone and clay shale.The main ore minerals are pyrite,arsenopyrite,antimonite,etc.Among them,granite diorite porphyry pyrite mineralization is developed,sericite mineralization is developed,and is accompanied by more common vein disseminated gold mineralization,which has the characteristics of porphyry type gold deposits.In the Jiangnan transition zone,medium acidic porphyry should be the focus of searching for porphyry type gold deposits.The indicators for mineral exploration include structure,lithology,and alteration.

关 键 词：花山 金矿 条纹灰岩 细脉浸染状 

分 类 号：P618.51[天文地球—矿床学]