本文对该区上二迭——下、中三迭统碳酸盐岩地层的沉积相和牙形刺进行了研究,重点研究了牙形刺的属种和组合,在野外及室内岩石薄片鉴定的基础上,对各组、段的碳酸盐岩相进行了初步划分,从而阐述了牙形动物受沉积环境和岩性控制的关系。本文还讨论了该区牙形刺颜色变化对油气勘探的意义。 In this paper, the sedimentary facies and conodonts of the Upper Permian-Middle and Lower Triassic carbonate rocks in this area are studied, and the species and assemblages of conodonts are mainly studied. The identification of rock fragments in the field and in the interior Based on the initial division of carbonate facies in each group and segment, the relationship between sedimentary environment and lithology control of dentate beings is expounded. The paper also discusses the significance of the change of the color of the conodont in this area to oil and gas exploration.