广东省惠来县青坑锡矿床成矿地质特征及找矿方向  

Metallogenic geological characteristics and prospecting direction of QingKeng tin deposit in Huilai County,Guangdong Province

作　　者：周荣德 李表鹏 胡文杰 朱沛云 ZHOU Rong-de;LI Biao-peng;HU Wen-jie;ZHU Pei-yun(Team 931,Guangdong Nonferrous Metals Geological Bureau,Shantou 515041,China)

机构地区：[1]广东省有色金属地质局九三一队,广东汕头515041

出　　处：《世界有色金属》2021年第7期76-77,共2页World Nonferrous Metals

摘　　要：广东惠来青坑锡矿床位于惠来县青坑村,结合区内工作成果,对区域地质、矿区地质及矿体地质特征分析结果表明:①锡矿体呈脉状赋存于矿脉产于泥质粉砂岩、粉砂质泥岩、长石石英砂岩及云英岩的裂隙中;②区内与成矿有关的岩浆岩为花岗斑岩脉;③金属矿物共生组合为锡石、黄铁矿、黄铜矿及少量毒砂、闪锌矿、方铅矿;④区内围岩蚀变主要为云英岩化、石英褐铁矿化、高岭土化、黄铁矿化和矽卡岩化。在以上基础上,分析认为广东惠来青坑锡矿床锡矿属于高-中温热液充填交代矿床,矿床的形成离不开花岗斑岩。The QingKeng tin deposit in Huilai County,Guangdong Province is located in QingKeng village,Huilai County.Combined with the work results in the area,the analysis of regional geology,mining area geology and ore body geological characteristics shows that:①the tin ore body occurs in the vein in the fissure of argillaceous siltstone,silty mudstone,feldspathic quartz sandstone and greisen;②the magmatic rock related to mineralization in the area is granite porphyry vein;③the ore body occurs in the fissure of argillaceous siltstone,silty mudstone,feldspathic quartz sandstone and greisen The mineral assemblages are cassiterite,pyrite,chalcopyrite and a small amount of arsenopyrite,sphalerite and galena;④the wall rock alteration in the area is mainly greisenization,quartz limonitization,KAOLINIZATION,pyritization and skarnization.On the basis of the above analysis,it is considered that the tin deposit of QingKeng tin deposit in Huilai,Guangdong province belongs to the high middle temperature hydrothermal filling metasomatic deposit,and the formation of the deposit is inseparable from the huahuagang porphyry.

关 键 词：广东惠来青坑 锡矿 高-中温热液充填交代矿床 

分 类 号：P618.44[天文地球—矿床学]