摘要
对测区火山岩矿化元素富集规律作了较为详细的分析,结合已有矿点的实际资料认为:区内铜矿化有利地层主要为一套次石英安山玢岩,扎子沟花岗闪长岩岩体对矿化的影响也很重要。测区石英安山玢岩、次石英安山玢岩,Ag、Mo、Cu、Au含量颇高,形成铜矿化的可能性较大。而玄武岩与安山玢岩,则贫Cu、Zn,且分布有限,故寻找铜矿床的可能性很小。
<Abstrcat> The paper analyses the abundant rule of mineralizing elements of the Sinian volcano rocks in Southern Danghe Mountains in Gansu province.It is concluded that a set of quartz-andesite-porphyrite is the advantage formation for copper mineralization ,and the granite-diorite rock matrix in Zhazigou also has an important role.The abundance of Ag,Mo,Cu,Au is high in the quartz -andesite -porphyrite and the hypo-quartz-andesite -porphyrite.Both of them have more possibility to form copper deposit. But the basalt and the andesite -porphyrite has poor Cu,Zn and their distribution is limited.So the analysis result to the background of mineralization element indicate thatThe possibility for finding the copper deposit in the basic volcanic rock is little,while finding copper-molybdenum deposit in the intermediate volcanic rocks is rather possible.
出处
《西安工程学院学报》
2002年第2期29-32,共4页
Journal of Xi'an Engineering University
关键词
含矿性
火山岩
震山纪
党河南山
甘肃省
Ore-bearing Potential
Volcanic Rocks
Sinian Period
Soutnern Danghe Mountains
Gansu Province
