福建政和铁山铅锌矿床地质特征及成因  

On geological properties and genesis of Tieshan lead-zinc deposit in Zhenghe County of Fujian

作　　者：徐强[1] 薛卫冲[1] 

机构地区：[1]江苏省有色金属华东地质勘查局,江苏南京210007

出　　处：《地质学刊》2013年第4期647-652,共6页Journal of Geology

摘　　要：福建省政和县铁山铅锌矿床位于闽东中—新生代火山活动带。大地构造上处于建瓯—遂昌上古台拱与浙闽粤沿海断陷交接处。矿体产于晚震旦世—早古生代稻香组与铁山混染正长岩及燕山晚期枫林黑云母花岗岩接触带以及接触带围岩一侧的顺层裂隙之中。矿体与接触带产状基本一致,主要受地层产状及接触带控制。矿体呈似层状、透镜状,部分呈脉状。矿石品位较高,以铅锌矿石为主,次为黄铜铅锌矿石和铅锌磁铁矿石。矿床物质来源于地层、岩体特别是沉积岩中的火山质夹层。矿床成因类型为层控矽卡岩型。Abstraet：Tieshan lead-zinc deposit was located in Zhenghe County which was in the east of Fujian Province, and was in Mesozoic- Cenozoic volcanic active zones. Tectonics was on the junction of Jian＇ou-Suichang ancient anteklise and coastal subsidence of Zhejiang and Fujian. The ore bodies were occurred in the contact zones of Daoxiang Formation of upper Sinian to early Paleozoic and along the bedding fissures on the country rocks in the contact zones of Tieshan contaminated syenite and maple biotite granite in late Yanshanian. The occurrence of the ore bodies and contact zones were almost the same and mainly controlled by stratigraphic occurrence and the con- tact zones. The shapes of ore bodies were of stratiform, lens and veins. The ore grade was high and was mainly lead-zinc and then brass lead-zinc and lead-zinc magnetite. The deposit materials were from the strata and rock especially the volcanic interlayers in the sediment rocks. It was of strata bound skarn type deposit.

关 键 词：铅锌矿 侵入岩体与稻香组 成矿物质 矿床成因 层控矽卡岩型 铁山 福建政和 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]