昆明盆地是云南新生代面积最大的褐煤盆地。其上部的全新世和现代沉积层中有泥炭聚积,下部更新世地层中有褐煤赋存。对该盆地的现代沉积环境研究所得到的规律,对其它中、新生代煤盆地的古环境分析和找煤勘探都具有类比意义。 盆地为一东部翘起、西部陷落的半地堑。南北长约70公里,东西宽约15～23公 Kunming Basin is the Cenozoic lignite basin in Yunnan Province. There is peat accumulation in the upper Holocene and modern sediments, and lignite in the Lower Pleistocene. The law of the modern sedimentary environment research in this basin is of analogy significance to paleoenvironmental analysis and coal prospecting of other Mesozoic and Cenozoic coal basins. The basin is a semi-graben where the eastern part is tilted and the western part is lost. About 70 km long from north to south, east-west width of 15 to 23 kilometers