ENVIRONMENTAL-CHANGES RECORDED IN LAKE-SEDIMENTS FOR 13,000-1,000 A BP IN BEIJING AREA

The detailed C-14 dating, palynological, carbon isotope and magnetic s usceptibility analyses of a paleo-swamp record obtained near Beijing s how that the succession of climate events in Beijing area is broadly c onsistent with the climatic behavior in the North Atlantic region duri ng the period from 13 000 to 10 000 a B. P., but with evident local ch aracteristics. A relatively warm and wet episode (11 400-10 950 a B. P .) was intercalated between two dry-cold episodes (11 600-11 400 and 1 0 950-10 450 a B. P.).