东昆仑赋煤带是青海省重要的煤产地。对区内煤炭资源进行客观评价,以野外地质调查、钻探、测井成果为基础,对研究区的沉积相和层序地层学研究。研究结果表明:(1)东昆仑赋煤带下侏罗统羊曲组广泛发三角洲沉积体系、湖泊沉积体系,羊曲组底部以三角洲平原亚相为主,中部为湖泊相,顶部为三角洲相;(2)研究区下侏罗统羊曲组识别出3个三级层序,即S3~S5,6个体系域,煤层多发育在湖侵体系域的晚期。 East Kunlun Fu belt is an important coal production in Qinghai Province. Objectively evaluate the coal resources in the area. Based on field geological survey, drilling and well logging results, the sedimentary facies and sequence stratigraphy of the study area are studied. The results show that: (1) The Lower Quaternary in the Lower Kunlun Shepherd Qu Group in the East Kunlun Coal Belt is widely distributed in the deltaic depositional system. In the lacustrine sedimentary system, the bottom of the Yangqu Formation is dominated by deltaic subfacies, the middle is lacustrine facies, and the top is deltaic facies ; (2) Three third-order sequences were identified in the Lower Jurassic Yangqu Formation in the study area, that is S3 ~ S5 and 6 syenite domains. Coal seams mostly developed in the late stage of the lake invasion system tract.