The Sedimentary Characteristics and Evolution Law of Trassic,Luoyi District
Yue Shaofei
Wang Hua
Yan Detian
Huang Chuanyan
Chang Dayu
Li Xiaopeng
Zhang Jing
Abstract：By using the data of core,well logging and outcrop,the sedimentary characteristics and evolution law of Triassic system, Luoyi District are studied.It is found that there are three sedimentary facies including meandering river,delta and lacustrine developed in Triassic period.The middle and lower Triassic system mainly developed meandering river,while the upper Triassic system developed delta and lacustrine sedimentary facies along with the expansion of the lake area and the rising of the lake surface.The evolution law of sedimentary system is controlled by the Indosinian movement during middle Triassic .This movement caused the Yangtze plate to sub-duct to the North China plate,uplifted the surrounding of Luoyi District and made the sedimentary of deep-water lake in Luoyi District. By contrasting the sedimentary characteristics and stratigraphic trap of Luoyi District with those of Ordos basin,the exploration poten-tial of Luoyi District is proved.The study of the sedimentary characteristics and evolution of Luoyi District provides more favorable geo-logical evidences for the future exploration in the region.
Keywords：LuoyiTriassiclarge depression basinsedimentary systemdeltapetroleum geology
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：13( 1683-1695 )