河北省承德县王家庄北沟钼矿床地质特征、矿床成因及找矿标志  

Geological characteristics,genesis and prospecting indicators of Wangjiazhuang Beigou molybdenum deposit in Chengde County,Hebei Province

作　　者：张野 ZHANG Ye(The Fourth Geological Brigade of Hebei Geological and Mineral Exploration and Development Bureau,Chengde 067000,China)

机构地区：[1]河北省地质矿产勘查开发局第四地质大队,河北承德067000

出　　处：《世界有色金属》2024年第21期76-78,共3页World Nonferrous Metals

摘　　要：王家庄北沟钼矿床位于河北省承德县。钼矿体受近东西向正断层控制,赋存在中元古代蓟县群雾迷山组白云岩构造破碎带和下白垩统的张家口组火山岩内,并与局部发育钼矿化的石英闪长玢岩脉关系紧密。钼矿体呈似层状分布,主要为氧化矿石和混合矿石。氧化矿石发育蜂窝状和角砾状构造,混合矿石呈现脉状、浸染状、角砾状等构造。金属矿物主要为辉钼矿、钼华等。因此推测王家庄北沟钼矿床受构造破碎带控制的浅成—超浅成中低温热液型钼矿床。地表的钼华、铁帽等是直接找矿标志,构造交汇位置、元素组合异常是主要的间接找矿标志。The Wangjiazhuang Beigou molybdenum deposit is located in Chengde County,Hebei Province.The molybdenum ore body is controlled by a nearly east-west normal fault and is located in the fractured zone of the dolomite structure of the Wumishan Formation in the Jixian Group of the Middle Proterozoic and the volcanic rocks of the Zhangjiakou Formation in the Lower Cretaceous.It is closely related to the locally developed quartz diorite porphyry veins with molybdenum mineralization.Molybdenum ore bodies are distributed in a layered manner,mainly consisting of oxidized ores and mixed ores.Oxidized ores develop honeycomb and pebble like structures,while mixed ores exhibit vein like,impregnated,and pebble like structures.The main metallic minerals are molybdenite,molybdenite,etc.Therefore,it is speculated that the Wangjiazhuang Beigou molybdenum deposit is a shallow to ultra shallow hydrothermal molybdenum deposit controlled by tectonic fracture zones.The molybdenum deposits and iron caps on the surface are direct indicators for mineral exploration,while the intersection of structures and abnormal element combinations are the main indirect indicators for mineral exploration.

关 键 词：钼矿 王家庄北沟 中低温热性型 矿床成因 找矿标志 

分 类 号：P618.65[天文地球—矿床学]