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四川盆地川东地区三叠系嘉陵江组第二段滩微相的发育，受海平面相对升降的控制。提出了浅海滩和变浅暴露滩的新分类，分析了滩微相的古地理和层位分布规律，建立了滩的组成模型，总结了滩发育的三种相序模式。变浅暴露滩有有利的生、储和盖组合，发育的孔隙层段，早期形成的沉积－成岩圈闭，控制了各种圈闭中裂缝－孔隙型气藏的形成。上述思想提供了与滩有关的气藏勘探的新思路。
The development of microfacies in the second section of Triassic Jialingjiang Formation in eastern Sichuan Basin is controlled by relative sea-level rise and fall. A new classification of shallow beach and shallow exposed beach was proposed. Paleogeography and horizon distribution of the beach microfacies were analyzed. The compositional model of the beach was established and the three phase sequence patterns of the beach development were summarized. Shallowly exposed banks have favorable combinations of raw, reservoir and cap, well-developed pore beds, and early sedimentary-diagenetic traps, which control the formation of fractured-pore gas reservoirs of various traps. The above thinking provides a new idea of exploration of gas reservoirs related to the beach.