华北地台北缘火山岩型铀钼矿床找矿模型研究  

Prospecting model research of volcanics-hosted U-Mo deposits at north margin of the North China platform

作　　者：杜俐[1] 沈光银 林银山[2] 

机构地区：[1]东华理工大学放射性地质与勘探技术国防重点学科实验室,江西抚州344000 [2]天津华北地质勘查局核工业247大队,天津宝坻301800

出　　处：《地质找矿论丛》2012年第4期458-462,共5页Contributions to Geology and Mineral Resources Research

基　　金：天津华北地质勘查局科技创新项目(编号:津华勘2008第66号);东华理工大学放射性地质与勘探技术国防重点学科实验室开放基金(编号:2011RGET018)联合资助

摘　　要：460铀钼矿床具有很好的火山岩型铀钼矿找矿前景。460铀钼矿早期为斑岩型矿化,晚期叠加火山热液型矿化,成矿时代为晚白垩世及新近纪。铀源层(体)为张家口组三段酸性火山岩及次流纹斑岩,由壳源重熔岩浆作用形成。以460矿床区域地质背景、成矿环境、矿床地质特征及找矿标志研究为重点,总结归纳了火山岩型铀钼找矿方法,建立了华北地台北缘火山岩型铀钼矿床的找矿模型。U-Mo deposit 460 is potential for prospecting volcanics-hosted U-Mo ore. Late volcanic hydrothermal mineralization overprints on the early porphyry mineralization. The deposit was formed in Late Cretaceous and Neogene. The remelted crustal materials, the acidic volcanics and sub-rhyolitic porphyry of the third member of Zhangjiakou formation are the U-source beds. Based on regional geological background, metallogenic setting and geological characteristics of the deposit the prospecting marks are highlighted and ore prospecting method is induced and summarized and the prospecting model is built for prospecting volcanics-hosted U-Mo deposits at north margin of the North China platform.

关 键 词：火山岩型铀矿 地质特征 成矿规律 找矿标志 找矿模型 华北地台 

分 类 号：P612[天文地球—矿床学] P619.14[天文地球—地质学]