论文部分内容阅读
四川盆地是西南地区最大的中生代盆地,铀矿成矿地质条件优越,其找矿前景备受关注。铀矿的含铀建造研究对盆地铀矿找矿具有重要的战略意义。四川盆地基底由上、下两部分组成,下部为前震旦纪结晶基底或褶皱基底,上部为震旦纪—中三叠世上扬子陆表海相碳酸盐岩和碎屑岩沉积建造,和盆地周边的火山岩、侵入岩组成了盆地的基底和蚀源区,广泛出露于盆地周边。盆地基底铀矿床(点)
Sichuan Basin is the largest Mesozoic basin in Southwest China. Uranium deposits have superior geological conditions for mineralization and the prospect of prospecting is of great concern. Uranium uranium uranium deposits in the study of the basin has important strategic significance of prospecting. The basement of the Sichuan Basin is composed of upper and lower parts, and the lower part is a fore-Sinian crystalline basement or fold basement. The upper part of the basement is formed by the sedimentary deposition of the Yangtze epicontinental marine carbonate and clastic rock from the Sinian to Middle Triassic, Volcanic rocks and intrusive rocks make up the basal and erosional source areas of the basin and are widely exposed around the basin. Basin basement uranium deposit (point)