摘要：北部湾涠西探区浅层地质研究程度不高，不利于今后进一步勘探和工程活

Abstract: The degree of shallow geological research in the Weixi exploration area of ​​the Beibu Gulf is not high, which is not conducive to further exploration and engineering activities in the future. In this paper, based on the completed wellsite survey data, combined with the regional results of predecessors, the shallow strata in the area are divided into engineering geology and sequence, and the shallow geological structure is initially established. In the depth range of 40m below the seabed, the lithology of the strata is silty clay layer, hard clay layer, gravel sandy layer, clay layer and sandy layer from top to bottom. The formation ages are Holocene and late Pleistocene. In the early stage. <br>Keywords: shallow geology; engineering geology; sequence division

Abstract: The shallow geological research degree of the Beibu Bay's Western Exploration Area is not high, which is not conducive to further exploration and engineering activities in the future. Based on the survey data of the completed well site, combined with the results of the previous region, the paper divides the shallow formations of the area by engineering geology and sequence, and initially establishes the shallow geological structure. In the depth range of 40m below the seafloor, the rockiness of the formation is silt clay layer, hard clay layer, gravel sand layer, clay layer and sand layer from top to bottom, and the formation time is Completely and Ernest late, middle and early, respectively.<br>Keywords: shallow geology;

Abstract: the shallow geological research degree of Weixi exploration area in Beibu Gulf is not high, which is not conducive to further exploration and engineering activities in the future. Based on the well site survey data and previous regional results, the engineering geology and sequence division of the shallow strata in this area are carried out, and the shallow geological structure is preliminarily established. Within the depth of 40m below the sea floor, the lithology of the strata is muddy clay layer, hard clay layer, gravel sandy layer, clay layer and sandy layer from top to bottom, and their formation ages are respectively late, middle and early Pleistocene.<br>Key words: shallow geology; engineering geology; sequence division<br>