摘要
马道口钼矿床是近几年在张家口沽源火山盆地东部外缘发现的唯一一个钼矿床,文中阐述了该矿床的地质特征,矿体产于早白垩世张家口组流纹质熔结凝灰岩和晚侏罗世石英正长斑岩接触带附近,产状受张家口组一段火山碎屑岩岩层产状与接触带产状双重制约,在火山碎屑岩层间滑脱破碎带富集成矿。矿区内成矿流体包裹体测温结果显示,成矿流体温度较低,该矿床可能位于高温型钼矿边缘位置。
The Madaokou molybdenum deposit is the only molybdenum deposit found in the eastern outer edge of Guyuan Volcanic Basin in Zhangjiakou in recent years,The geological features of the deposit are described,the ore body is produced near the rhyolaceous molten tutite and late Jurassic quartz orthoporphyry contact zones of the Early Cretaceous Zhangjiakou Formation,the yield is double restricted by the pyroclastic stratum of pyroclastic strata of Zhangjiakou Formation,and is enriched in the sliding zone between pyroclastic strata.The temperature measurement of mineral fluid wrapping in the mine is low and the deposit may be at the edge of high-temperature molybdenum ore.
作者
王京涛
WANG Jing-tao(The First Geological Brigade of Hebei Provincial Bureau of Geology and Mining,Handan 056000,China)
出处
《世界有色金属》
2021年第17期207-208,共2页
World Nonferrous Metals
关键词
马道口
钼矿
沽源火山盆地
Madaokou
molybdenum mine
Guyuan Volcano Basin
