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松拉河间地块位于松嫩东部高平原中段,面积约1600km~2。该区第四纪堆积物厚度较大,一般70~100 m,地下水资源丰富,具有较高的工农业供水价值。因此,对松拉河间地块第四纪地层的研究,不仅对认识古地理、古气候环境的演变具有理论意义,而且对地下水含水层(组)的划分、水资源评价及工农业发展均有重要的生产实践意义。根据区内200余个钻孔资料,可将松拉河间地块高平原部分的第四系松散沉积物大致划分四套地层,自上而下为:(1)黄土状亚粘土下伏粉细砂岩,厚15~40m; (2)黄——
Songla inter-river massif is located in the middle of Songnen eastern plains, an area of about 1600km ~ 2. The Quaternary sediments in this area have a large thickness, usually 70-100 m, rich groundwater resources and high industrial and agricultural water supply value. Therefore, the study of the Quaternary stratigraphy in the Songhuahe area is of theoretical significance not only for understanding the evolution of palaeogeography and paleoclimate environment, but also for the division of groundwater aquifer (group), water resources evaluation and development of industry and agriculture There is an important production practice. According to more than 200 borehole data in the area, quaternary loose sediments in the high plains of the Songhuahe block can be roughly divided into four strata, top to bottom: (1) Fine sandstone, thickness 15 ~ 40m; (2) yellow -