摘要
平邑卓家庄金矿是隐爆角砾岩型金矿床 ,以高金品位 (平均在 10 0× 10 -6以上 )、全筒式矿化为特点。岩筒产于NW向和EW向断裂交汇部位。金矿矿石类型主要为隐爆角砾岩型矿石、震碎角砾岩型矿石、碎裂岩型矿石 ,隐爆角砾岩型矿石可进一步划分为矿浆胶结角砾岩型矿石、热液胶结角砾岩型矿石、岩浆胶结角砾岩型矿石及凝灰质胶结角砾岩型矿石。矿体上部矿石类型简单 ,下部矿石类型复杂。提出了卓家庄式隐爆角砾型金矿的找矿标志 ,认为Ⅱ、Ⅳ号角砾岩筒是有利金成矿的岩筒。
Zhuojiazhuang gold deposit is a hydrothermal breccia pipe gold deposit and characterized by high gold tenor (average gold tenor is large to 100 ×10 -6 ) and by gold mineralization in whole pipe. The hydrothermal breccia pipe occurs at the intersection part of a NW-strike fault with an EW strike fault. The gold ores can be divided into hydrothermal breccia type, shatter breccia type, cataclastic type and porphyry type. Based on the components of cement, the hydrothermal breccia ores can further be classified into four subtypes: sulfides cemented, chart and flourite cemented, magma cemented, tuff cemented. In the shallower part of the mineralized pipe, ore types and compositions are relatively simple, while in the deeper part of the pipe, the ore types and compositions become more complex. Based on study of the hydrothermal breccia pipe and on comparison with other similar pipes located in the same structural system, we prospect that No.Ⅱand No.Ⅳ breccia pipes are good targets for further exploration.
出处
《地质与勘探》
CAS
CSCD
北大核心
2000年第4期20-23,共4页
Geology and Exploration
基金
中国科学院九五黄金重大项目!(编号 :KZ95 1-A1-4 0 4-0 2 -0 2 )
创新工程项目!(KZCX1-Y -0 3 -0 1)
山东平邑归来庄金矿资助
关键词
隐爆角砾岩
成矿预测
卓家庄金矿床
hydrothermal breccia, metallogenic prognostication, Zhuojiazhuang gold deposit
