河北省隆化洋骡子沟铀钼矿控矿因素及找矿方向  

The ore-controlling factor and prospecting direction of Yangluozigou U-Mo deposit in Longhua County of Hebei Province

作　　者：曹子存 迟金磊 李先瑞[1] CAO Zicun;CHI Jinlei;LI Xianrui(Nuclear Industry No.247 Brigade of Tianjin North China Geological Exploration Bureau,Baodi 301800,Tianjin,China)

机构地区：[1]天津华北地质勘查局核工业二四七大队

出　　处：《矿产与地质》2019年第3期471-475,483,共6页Mineral Resources and Geology

摘　　要：河北隆化洋骡子沟铀钼矿为构造控制脉状火山-次火山岩热液型矿床。通过对该区地物化和重型山地揭露资料分析,对成矿地质条件和控矿因素有了新的认知,铀钼矿体主要赋存在次流纹斑岩体中构造裂隙带内及次流纹斑岩体与围岩角砾熔结凝灰岩的接触带中或近岩体围岩角砾熔结凝灰岩的破碎带内,呈脉状、层状、似层状、透镜体产出,铀钼矿(床)化形成主要与该区白垩世多次岩浆热事件密切相关。在此认知的基础上,提出了在该区的找矿方向,以期为进一步的找矿突破提供新的思路。The Yangluozigou U-Mo deposit is a hydrothermal vein-type deposit hosted in the volcanic-subvolcanic rocks and controlled by structures in Longhua County of Hebei Province.Based on the analysis of geological,geophysical and geochemical data and heavy mountain prospecting engineering data in this area,there is a new understanding of metallogenic and geological conditions and ore-controlling factors.The U-Mo orebody is mainly hosted in the structural fracture belt of sub-rhyolite porphyry and in the contact zone between the sub-rhyolite porphyry and the surrounding rocks of breccia melting tuff,or in the fracture zone of the surrounding rocks of breccia melting tuff near the rock mass.The orebody occurrence is in vein,layered and semi-layered,lenticular shape.The U-Mo mineralization is closely related to the multiple thermal events of Cretaceous magma.On the basis of this cognition,the prospecting direction is put forward in order to provide a new idea for further prospecting breakthrough in this area.

关 键 词：铀钼矿 矿床特征 控矿因素 蚀变类型 找矿方向 洋骡子沟 河北 

分 类 号：P619.14[天文地球—矿床学] P618.65[天文地球—地质学]