沉积盆地类型划分是盆地及其相关领域研究的重要基础。已有的盆地分类方案较多,各有侧重和所长,但对陆内盆地的划分和研究较为薄弱。沉积盆地是一个典型的复杂巨系统,对其分类是一个复杂的系统工程。盆地分类的原则和结果应体现此系统的整体性、层次性、关联性、典型性(代表性)和可对比性(预测性)。盆地类型划分的依据主要包括盆地发育鼎盛时期所处的大地构造位置、地壳-岩石圈类型、沉降机制和动力环境、盆地结构构造特征与基底性质、沉积环境及充填特征等。导致盆地沉降的动力主要源自地球深部,可分为热力、应力、重力及其复合4种。小行星等天体撞击地球所形成的盆地属特殊类型,将其划归重力成因盆地大类。还有一种值得注意的地貌成因盆地,其形成与内动力地质作用联系不密切,主要由地表负向地形存在而导致沉积物充填和水体汇聚。这类盆地在不同大地构造环境中均有发育,但其地球动力学意义和沉积矿产赋存条件等均与内动力成因的盆地差别颇大。故将其作为新的盆地和成因类型单独列出。根据上述沉积盆地分类的原则和基础,以全球板块构造动力环境、大陆内部动力活动的独立性、主动性和盆地沉降成因的主动力为主线,综合和归纳前人分类方案和盆地研究成果,将盆地发育的区域构造动力环境分为6大类(大洋和大陆板块内部,离散型、消减型、碰撞型、转换型大陆(板块)边缘),增加了天体撞击的特殊型和后期改造的复合型2大类与之并列;将前6大类构造动力环境中发育的沉积盆地分为44(亚)类,按构造动力环境、盆地主要构造力学性质(即应力)两大系统,分别进行了划分和归类。对本盆地分类方案中新的类型、或内涵有变、或需说明的部分盆地及术语,进行了进一步讨论或说明。这些盆地如后陆?
The classification of sedimentary basins is fundamental for research on basins and related fields. Although there are a variety of basin classification schemes with different emphases and advantages, the study of the classification of intraeontinental basins is still weak. A sedimentary basin represents a typical giant system and its classification is a complicated system engineering. The excellent classification for basins should reflect integrality, hierarchy, relevancy, typicality (representativeness) and comparability (predictability) of the basin system. The classification of basin types is mainly based on the factors, including tectonic position, lithospheric type, subsidence mechanism and dynamic environment, basinal texture and structure, basement property, sedimentary environment and filling feature, etc. , during the formation and development of the basin. The forces which led to basin subsidence were mainly originated from the deep Earth and can be divided into four types., thermal, stress, gravity and combination of all the three. The basin formed by asteroid impact is a special case and could be classified into the gravity-originated type. Another noteworthy basin type is the basin generated by landform genesis; the basin did not result from endogenic processes but caused by sediments and water body accumulating in lowland; this type of basin has been observed in different tectonic environments;their occurrence conditions of mineral deposits and geodynamic implications are quite different from those basins having endogenic genesis; therefore, the basin is separately treated as a basin type with distinctive origin. Based on previous classification schemes and studies of sedimentary basins and considering plate tectonics dynamic setting, independence and initiative of intracontinental internal dynamics, and main forces leading to basin subsidence, this paper divides the regional tectonic environment of basin development into 6 types: within oceanic plate, within continental plate, divergent,