贵州南盘江盆地发育一系列不同样式的穹窿状构造，其控制着低温矿床的分布，位于黔西南控制烂泥沟超大型金矿床的赖子山穹窿是其典型代表。在统计赖子山穹隆地层产状的基础上，通过π圆图解确定出轴迹分别为NW和NE向的稳定变形亚区，并依据亚区构造横剖面和几何投影解析得到亚区褶皱位态类型均为直立水平背斜。通过统计分析区内劈理并依据劈理与亚区褶皱轴面的平行关系筛选出轴面劈理，基于轴面劈理的切割关系、卷入变形的地层及前人获得的相关构造岩浆岩年代推断出组成赖子山穹窿亚区褶皱的发育时序，即NWSE向背斜发育于燕山早期，NNESSW向背斜发育于燕山晚期。基于地质构造分析，结合该地区地层岩石能干性强弱、地层缩短量和变形边界条件建立两个沙箱模型进行4组实验，通过改变软弱层材料、变形同时性模拟构造复合叠加和构造联合叠加的变形过程及样式，讨论影响叠加变形的因素。根据模拟结果，我们认为赖子山穹窿是NW向和NNE向纵弯直立水平褶皱经移褶性复合叠加形成的穹窿状构造，两期褶皱分别对应燕山早期雪峰山隆起对南盘江盆地的侧向挤压作用和燕山晚期黔西南由NW向SE的大型逆冲推覆作用；岩层能干性差异和构造变形的强弱是影响叠加褶皱构造样式和叠加类型的关键因素，当岩层能干性差异较大时，相对软弱的岩层起到分层变形作用，使得软弱层上下强硬层构造样式不同；后期变形较弱时，形成限制性、移褶性叠加褶皱，后期变形较强时，形成斜跨、横跨式叠加褶皱，分阶段变形形成复合叠加构造，同时变形或变形速度差较小时，形成弧形的联合叠加构造。 A series of dome-shaped structures are developed in the Nanpanjiang Basin, Guizhou, which control the distribution of low-temperature ore deposits. The Lai Zishan Dome, which is located in the super-large gold deposit of Sinian Gully in southwestern Guizhou, is a typical example. Based on the statistics of the occurrences of the Laizishan dome, the stable deformation sub-zones with axial traces of NW and NE are respectively determined by π-circle diagram. Based on the sub-region structural cross-section and geometric projection analysis, All are horizontal horizontal anticlines. Based on the statistical analysis of the intra-area cleavage and the parallel relationship between the cleavage and the sub-regional fold axis, the cleavage of the axial plane, the cutting relationship based on the cleavage of the axial plane, the strata involved in the deformation and the related structural magmatism The deduction of the development sequence of the fold of sub-zone forming the Lai Zishan Fa Dome means that the NWSE anticline developed in the early Yanshanian period and the NNESSW anticline developed in the late Yanshanian period. Based on the analysis of the geological structure, four sandbox models are established based on the dry and weak stratigraphic rock strata, strata shortening and deformation boundary conditions. Four sets of experiments are carried out. By changing the material of the weak strata and simulating the deformation simultaneously, the composite superimposition and tectonic superimposition The deformation process and style, discuss the factors that affect the deformation of the stack. According to the simulation results, we consider that the Lai Zishan Dome is a dome-like structure formed by superimposed fold fold superimposition of upright vertical folds NW and NNE, and the two folds correspond respectively to the Late Yanshanian Uplift Extrusion and large-scale thrust nappe from NW to SE in the late Yanshanian period. The differences in rock formation dryness and tectonic deformation are the key factors that affect the superimposed fold structure and superposition types. , The relatively weak strata play the role of delamination deformation, which makes the structural styles of hard and hard layers at the upper and lower layers of the weak layer different. When the deformation is weak at the later stage, the limit and fold folds are superimposed, and the late deformation is strong, Straddling superimposed folds, staged deformation of the composite superimposed structure, deformation or deformation speed difference is small, the formation of arc-shaped joint superimposed structure.