第四纪地质调查对水利工程地质来说,是很重要的调查项目之一,尤其是在平原河谷地带更有其特殊的研究价值。譬如土坝、堤防、农业、工业和路基等都离不开“土”的调查研究。现就野外工作中所见到的“岗土”提出来与读者共同研究一下。这对于祖国社会主义建设事业中的工程地质勘察是有现实意义的。一、“岗土”的由来当我们走过松辽平原的开原及铁岭西部地区或淮 Quaternary geological survey is one of the most important investigations for hydraulic engineering geology, especially in the plains and valleys. For example, earth dams, embankments, agriculture, industry and roadbed can not be separated from the “earth” research. Now on the field work to see the “post” proposed to study with the reader. This is of practical significance to the engineering geological survey in the cause of socialist construction in the motherland. First, the “post” origin When we come across the Songyuan Plain and the western region of Tieling or Huai