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本文将青海湖滨岸带沉积划分为沿岸砾沙坝、泥坪、沙滩、砾石滩、泻湖和水下风沙堆积六个微相。与国内外其它湖泊滨岸沉积相比，以发育沿岸砾沙坝和水下风沙堆积为其特征。其中规模较大的沿岸砾沙坝和沙滩分布于地形坡度不大（坡度１０°±）和波浪、沿岸流及风力作用强烈的滨岸地区，粒度概率曲线以推移和跳跃总体为主、悬移组份含量少和跳跃总具双跳跃式为特征，垂向层序由分选差（δ１＞１）的上部粗碎屑物与分选好（δ１＜１）的下部细碎屑物构成反韵律层；砾石滩主要分布于冲积扇或扇三角洲入湖地带和湖蚀岸边，以砾石均匀、磨圆较好、绝大多数砾石长轴平行湖岸线和最大扁平面倾向湖方向且倾角８°±为特征；泥坪主要分布于湖水动力弱、无大河流注入的湖湾、湖岸地形平缓以及坝后湖水滞流地带；水下风沙堆积以分选好、磨圆好、石英表面具风蚀凹坑、概率曲线呈上凸和双跳跃式总体以及粒度参数δ１＜１、Ｓｋ＝－０．１５～０．２１、Ｋｇ＝０．７５～１．１３和Ｍｄ＝０．２２～０．０２３ｍｍ为特征。本文对丰富湖泊沉积相内容具有一定意义。
In this paper, the sediments of Qinghai Lake are divided into six microfacies, such as gravel sand bar, mudflat, sand beach, gravel beach, lagoon and underwater sand deposition. Compared with the coastal sediments of other lakes at home and abroad, it is characterized by the accumulation of gravel sand dams and underwater sandstorms along the coast. Among them, large-scale coastal gravelly sandbars and sandy beaches are located in coastal areas where the gradient of the terrain is not very steep (slope 10 °) and the waves, coastal currents and strong winds play a dominant role. The components are less and the jumps are always characterized by double hopping. The vertical sequence consists of the upper coarse detritus with poor sorting (δ1> 1) and the lower fine detritus (δ1 <1) Rhythm layer; gravel beach is mainly distributed in the alluvial fan or fan delta lake lake shore and shore, with gravel uniform, rounding better, the vast majority of gravel long axis parallel to the lake shoreline and the largest flat orientation of lake direction and dip 8 ° ±. The mud pits are mainly distributed in the lake with weak hydrodynamics and no large river inflow. The lakeshore topography is gentle and the lakes are stagnant after the dam. The underwater wind-blown sediments are sorted and rounded, and the quartz surface is wind-eroded Pits, the probability curve is convex and double-jump overall and the particle size parameters δ1 <1, Sk = -0.15 ~ 0.21, Kg = 0.75 ~ 1.13 and Md = 0.22 ~ 0.023 characterized by m. This article is of great significance to enrich the sedimentary facies of lakes.