流体与铅锌成矿作用刍议——以大瑶山凸起西南缘平硐—旺石铅锌成矿带为例  

PRELIMINARY STUDY ON THE METALLOGENY OF FLUID AND LEAD-ZINC ORE FORMATION——Giving an Example in Pingong-Wangshi Lead-Zinc Deposits in the Southwest of Dayaoshan

作　　者：赵东军[1] 雷良奇[1] 宋慈安[1] 龚智[2] 

机构地区：[1]桂林工学院资源与环境工程系,广西桂林541004 [2]甘肃有色地质勘查局四队,甘肃张掖734012

出　　处：《广西地质》2001年第2期19-22,39,共5页Guangxi Geology

基　　金："广西十百千人才工程"专项基金资助 (编号 :992 2 5 )

摘　　要：流体在成矿过程中起重要作用。大瑶山凸起西南缘平硐—旺石铅锌成矿带的地质背景极有利于流体的活动和大型、超大型矿床的形成。据成矿环境、含矿建造、矿体和矿石特征、围岩蚀变、成矿温度等方面对比 ,该区在成因上具有MVT铅锌矿床的特点。诸多矿石组构如条带状、角砾状、皮壳状等的特征均表明该区矿床的形成与成矿流体关系密切。Fluid plays an important role in the ore-forming process. The geological background of Pingdong-Wangshi lead-zinc deposits, a zone in the southwest of Dayaoshan, is very advantageous for the fluid to extract and transfer the ore elements and form deposits. The authors draw a conclusion that the deposits are equivalent to the ore in carbonate rock and named sedimentary transformation deposit. According to geological background, ore-bearing formation, ore structure, host rock alteration, and ore formation temperature the deposits resemble the Mississippi Valley-type lead-zinc deposit. The authors have studied lots of ore structures in the deposits, and some typical structures such as brecciaform,banding and crustification show that the ore-forming fluid is indispensable for the deposits in the zone.

关 键 词：成矿流体 铅锌矿床 成矿作用 成矿环境 含矿建造 围岩蚀变 

分 类 号：P618.4[天文地球—矿床学]