论文部分内容阅读
本文根据坑探、物探、测温、分层冻胀仪等资料分析,讨论了本区活动层的结构特征,论证了石环区碗状冻结面的存在,分析了活动层温度的分布规律以及粒度、粘土矿物、含盐量和电阻率等垂向剖面参数反映的高低不同地势间冻土结构的差异及其对冰缘地貌发育的控制作用,继而提出了本区冻土(包括下覆基岩)具有的4层结构,最后,推算了冻土上限及其垂直变化梯度。
Based on the analysis of pit exploration, geophysical prospecting, temperature measurement and stratified heaving instrument, the structural characteristics of the active layer in this area are discussed. The existence of bowl-shaped frozen surface in the stone ring area is demonstrated. Particle size, clay mineral, salt content and resistivity and other vertical profile parameters reflect the different topography of frozen soil structure differences and its control on the development of ice margin geology, and then proposed the region of frozen soil (including the sub-base Rock) has a four-layer structure, and finally, calculate the upper limit of permafrost and its vertical gradient.