摘要
帮浦矿区东段铅锌多金属矿床是冈底斯成矿带驱龙—甲玛矿集区的一个大型铅锌多金属矿.在总结成矿地质特征的基础上,分析矿床的成因,进一步探讨其成矿机制.初步认为其成矿机制为在冈底斯晚碰撞转换阶段,富含成矿元素的岩浆沿断裂侵位,岩浆分异后成矿流体经断裂运移,进一步萃取围岩中铅锌成矿元素,遇洛巴堆组灰岩地层发生交代作用,形成矽卡岩型铅锌多金属矿,并在断裂破碎带及岩石裂隙中因温度、压力快速下降,形成充填型铅锌多金属矿.
The lead-zinc polymetallic deposit in the eastern part of the Bangpu mining area is a large lead-zinc polymetallic deposit in the Qulong-Jiama ore concentration area of the Gangdise metallogenic belt.On the basis of summarizing the metallogenic geological characteristics,the genesis of the deposit is analyzed,and the metallogenic mechanism is further discussed.It is preliminarily believed that the metallogenic mechanism is that in the late collision and transformation stage of Gangdise,magma rich in metallogenic elements emplaced along faults,ore-forming fluids migrated through faults after magma differentiation,lead-zinc metallogenic elements were further extracted from wall rocks,and metasomatism occurred in limestone strata of the Lobadui Formation,resulting in SKARN-TYPE lead-zinc polymetallic deposits and faulted.The filling lead-zinc polymetallic ore is formed in the fracture zone and rock fissures due to the rapid decrease of temperature and pressure.
作者
黄文俊
陈小龙
张叶鹏
高坡
王开朗
HUANG Wen-jun;CHEN Xiao-long;ZHANG Ye-peng;GAO Po;WANG Kai-lang(Hunan Nonferrous Metals Geology Investingation Bureau Rows247,Changsha 410129,China)
出处
《世界有色金属》
2019年第12期103-104,共2页
World Nonferrous Metals
关键词
帮浦矿区东段
铅锌多金属矿
成矿地质特征
成矿机制
the eastern section of the Bangpu mining area
lead-zinc polymetallic deposit
metallogenic geological characteristics
metallogenic mechanism
作者简介
黄文俊,男,生于1986年,汉族,湖南邵阳人,硕士研究生,工程师,研究方向:矿产普查与勘探。
