Study on Paleoenvironment since Late Glacial Epoch in Lznzhou Area,China

The Hongzuisi Section in Lanzhou area is used to infer the paleoclimate since the late gla-cial epoch.Through combined analysis of organic carbon isotope and CaCO3 content,paleoenvironment evolution of Hongzuisi Section since the late glacial epoch is discussed.Three were changes in both dry-moist and warm-cold.Especially the climate changes can be compared with synchronous sections of other areas,which provides useful information for our future forecast.