摘要
广东海丰县笔架山锡矿矿体呈脉状,赋存于斑岩体外接触带之构造裂隙中,矿体近矿围岩为上三叠统-下侏罗统银瓶山组(TJ y)云母石英片岩。矿石金属矿物共生组合为锡石、黄铁矿、黄铜矿及少量毒砂,矿体围岩蚀变主要以黑云母化、石榴石化、硅化为主,次为黄铁矿化、电气石化。该矿床的形成离不开花岗岩体、上三叠统银瓶山组岩层及韧性剪切带这三种要素。属于高-中温热液充填交代矿床。
The orebody of Bijiashan Sb deposit in Haifeng,Guangdong is veined in the structure fissure of outer contact of porphyry body.The wall rock near orebody is Upper Triassic-Lower Jurassic Yinpingshan Formation(TJ y)mica quartz schist.The ore metal mineral assemblage is composed of cassiterite,pyrite,chalcopyrite and a little arsenopyrite.The wall rock alteration of orebody is biotitization,garnetization,silification in major and pyritization,tourmalinization in minor.The 3 metallogenesis factors of deposit are granite body,Upper Triassic Yinpingshan Formation strata and ductile shear zone,which belongs to the high-middle T hydrothermal filling-metasomatic deposit.
作者
李表鹏
朱沛云
陈彦煜
LI Biao-peng;ZHU Pei-yun;CHEN Yan-yu(Team 931,Guangdong Bureau of Nonferrous Geology,Shantou 515041)
出处
《云南地质》
2019年第4期441-445,共5页
Yunnan Geology
关键词
构造控矿
热液型矿床
广东海丰笔架山
Ore Control of Structure
Hydrothermal Deposit
Bijiashan
Haifeng
Guangdong
