摘要
运用层序地层学理论和工作方法 ,对柴达木盆地西北部第三系地层进行了详细研究 ,识别出 4个层序。在层序体系域、沉积体系研究的基础上 ,分析了层序与铀成矿的关系 ,进而指出寻找层间氧化带可地浸砂岩型铀矿产出的有利层位和有利地区 ,为今后该地区铀矿找矿工作指明方向。
Based on the theory of Sequence stratigraphy,the Sequence features of the tertiary at the northwestern margin of Caidamu basin have been analyzed and four type of sequences have been identificated.Having throughly studied the dopositional ystem tract and depos itional system of these sequences,the author analyzed the relation of sequences and uranium metallogeny ,and propose the key target bed and the prospects for exploring insituleachable sandstone uranium deposits,in order to guied the uranium exploration in this area lately.\;
出处
《华东地质学院学报》
2000年第1期19-23,55,共6页
Journal of East China Geological Institute
关键词
层序地层学
柴达木盆地
铀矿床
找矿方向
Caidamu basin
sequence stratigraphy
highstand system tract
Tertiary
Prospecting direction
