Geological characteristics of the tungsten-molybdenum-bismuth polymetallic deposit in the Shenzhajiagang Snow Mountain,Tibet
The Jiagang Snow Mountain tungsten-molybdenum(bismuth)polymetallic deposit is located in the western section of the Angzi Co-Bengna Zangbo-Jiagang Snow Mountain-Serirong metallogenic belt.It is the first medium-sized quartz vein-type tungsten-molybdenum(bismuth)deposit discovered and surveyed in Tibet.The average Re-Os isotope model age of molybdenite is 21.37Ma,and the mineralization age is the middle Himalayan.The mineralization of tungsten,molybdenum,bismuth and other metals is related to the monzogranite body in the middle Himalayan.In addition,this paper systematically discusses the regional metallogenic geological conditions,ore body characteristics,ore-controlling factors,ore quality,wall rock alteration,etc.