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笔者首次发现川西地区中三叠统天井山组(T2t)中有大量的风暴岩。其中包含许多典型的与风暴相关的沉积构造,包括冲刷-充填构造、粒序层理和块状层理、丘状和凹状交错层理、扁平砾屑岩层等。该区风暴岩有6种沉积层序,Ⅰ型、Ⅱ型层序为远源风暴岩,Ⅲ型、Ⅳ型、Ⅴ型和Ⅵ型层序为近源风暴岩。风暴岩的区域展布差异和广泛分布表明,拉丁期上扬子西缘处于风暴活动频繁的低纬度陆棚缓坡沉积环境。天井山组风暴岩是四川盆地的一种新型储层。
The author first discovered a large number of storm rocks in the Middle Triassic Tianshan Formation (T2t) in western Sichuan. There are many typical storm-related sedimentary structures, including erosion-filling structures, grained bedding and block bedding, mound-and-grooved bedding, flat gravel beds and more. There are six kinds of sedimentary sequences in the storm rock in this area. The type Ⅰ and type Ⅱ sequences are distant source storm rocks. Type Ⅲ, Ⅳ, Ⅴ and Ⅵ sequences are near-source storm rocks. The regional distribution of stormstones and their widespread distribution show that the upper margin of the Upper Yangtze in Latin America was in a gentle depositional environment of low latitude continental shelf with frequent storms. The Tianjingshan Formation storm rock is a new type of reservoir in the Sichuan Basin.