青海省巴拉大才钨锡矿地质特征及成因探讨  

Discussion on Geological Features and Genesis of Baladacai Tungsten-tin Deposit in Qinghai Province

作　　者：王泰山[1,2] 张鑫利[1,2] 雷晓清[1,2] 李永登[1,2] 刘宝山[1,2] 徐贝贝[1,2] 

机构地区：[1]青海省青藏高原北部地质过程与矿产资源重点实验室,青海西宁8100122 [2]青海省地质调查院,青海西宁810012

出　　处：《甘肃冶金》2016年第5期38-45,共8页Gansu Metallurgy

基　　金：中国地质调查局"东昆仑铜镍多金属资源基地调查"项目的子项目之一"青海省格尔木市巴拉大才-小南川金钨多金属矿调查评价"项目;项目编号;12120113030200

摘　　要：巴拉大才钨锡矿点位于青海省格尔木市以南约160 km处;构造上位于甘德-玛多断裂与昆南断裂之间,木孜塔格-布青山混杂岩与玛多-玛沁增生楔结合部位;区内地质条件良好,找矿潜力较大;笔者通过对巴拉大才钨锡矿点进行野外地质调查及手标本、光薄片进行详细观察与鉴定,查明了区内主要矿化体特征、矿石成分,并通过对比国内及区内白干湖钨锡矿田,总结了巴拉大才钨锡矿点主要控矿因素和找矿标志,初步认为该矿点为受岩浆与构造活动控制的中高温石英脉-云英岩型钨锡矿点(床)。Baladacai tungsten-tin deposit is located at about 160km south of Golmud city, Qinghai province. It is tectonically in the binding site of Muzitage-Buqingshan melange betl and Maduo-Maqin accretionary wedge, between Gande-Maduo fracture and south Kunlun fracture. The geological condition and prospecting potential in this area are favorable. The main mineralization characteristics and mineral composition of Baladacai tungsten-tin deposit are clear and definite by the field geological survey and the detailed observation of hand specimens, the main ore-controlling factors and prospecting marks are summarized by comparing the domestic tungsten-tin deposits and Baiganhu tungsten-tin ore field. It is preliminary considered to be the high temperature quartz vein - greisen type tungsten-tin deposit controlled by magmatic and tectonic activities.

关 键 词：石英脉-云英岩型钨锡矿 控矿因素 找矿标志 巴拉大才 

分 类 号：P611[天文地球—矿床学]