摘要
最新地质调查发现,角砾岩型铁矿在滇中地区广泛分布。通过对黑箐角砾岩型铁矿矿床地质特征进及成因初步研究认为,该类矿床主要与800Ma-1000Ma的中基性岩浆作用相关,成矿分为四个阶段:隐爆角砾岩成矿阶段,富铁岩浆分异阶段,第三期岩浆侵入破矿阶段以及最后风化作用砂土状铁矿成矿阶段。该类型矿床很可能属于IOCG矿床的一个子段元。
The Heiqing Fe deposit in Central Yunnan is a breccia type one which is widely distributed in Central Yunnan.The deposit was related to intermediate and basic magmatism with an age of 800-1000 Ma.The ore-formation underwent 4 stages such as cryptoexplosive breccia ore-forming stage,Fe-rich magmatic differentiation ore-forming stage,magmatic intrusion disruption stage and weathering stage.The type may be an end of IOCG deposits.
出处
《四川地质学报》
2017年第1期57-61,共5页
Acta Geologica Sichuan
基金
国土资源大调查(编号:1212011120640
12120114022501)项目资助
关键词
铁矿:中基性岩浆
矿床特征
黑箐
Fe deposit
geological feature
intermediate and basic magma
Heiqing
