摘要
三塘湖盆地具深层结晶基底和浅层褶皱基底的双重结构。盆地东部结晶基底的存在使盆地东部(岔哈泉以东)中新生代盖层变形较西部弱,盖层在南北向挤压过程中缩短量小,盖层沉积厚度较薄,地浸砂岩型铀矿的找矿目的层埋深较浅,其构造、水文地质成矿条件较西部有利。
Santanghu Basin consists of double layer structures,which include the lower crystal basementand the upper folded basement.Due to the existence of crystal basement in the eastern basin,the upperMeso-Cenozoic cover deforms more weakly than that in the western basin.This means the cover in theeastern part is of less deformation during compression period,thinner dispositional thickness,and shal-lower in depth.All these conditions make the prospecting target horizon in the eastern basin be favorablefor the ISL sandstone-type uranium deposits.
出处
《世界核地质科学》
CAS
2004年第4期187-192,共6页
World Nuclear Geoscience
基金
核工业地质局科研项目(No.2001-21)
关键词
基底特征
砂岩型铀矿
成矿条件
三塘湖盆地
basement feature
sandstone-type uranium deposits
metallogenetic condition
Santanghu Basin