摘要
在野外地质观察、室内鉴定分析的基础上,对开心岭多金属矿区地层进行了重新划分,同时对成矿地质特征及成矿机理进行了论述。矿区由4个矿段组成,共圈定铁矿体15条(含8条隐伏矿体)。其中,10条为铁矿体,5条为锌矿体。各矿体皆产于早二叠世开心岭群尕的考组火山岩中,根据岩相及岩性组合,推断该火山岩在3次喷发期内构成了6个韵律层。提出该矿床成因类型属火山喷流(VMS)型锌多金属矿床,火山岩是区内重要的找矿标志。
Based on field geological observation and indoor analysis, we have reclassified the stratum in Kaxinling polymetallic mining deposit, and discussed the metallogenie geological features mineralization mechanism of the deposit. There are 4 sections of ore that have circled 15 ore bodies including 8 concealed ore bodies. 10 of them are Fe-ore-body and 5 are Zn-ore-body. All of the ore bodies are grown in volcanic rocks of early Permain Gadekao Formation. The volcanism formed six rhythmic layers in three effusive pe- riod according to the rock association. The genesis of the deposit is a volcanic plume （VMS） zinc poly- metallic deposit, and volcanic rocks are the most important regional prospecting criteria.
出处
《西北地质》
CAS
CSCD
2012年第1期71-78,共8页
Northwestern Geology
基金
青藏专项"青海省格尔木市开心岭-扎日根地区铁铜矿普查"(1212010818069)
