Palaeoclimatic evolution recorded by multidicipline in sediments in gahai lake, qaidam basin since late last deglacial

Based on the analyses of Loss-on-Ignition (LOI), carbonate content and sediment characteristics, this paper reconstructs the climatic and environmental evolution of the Gahai Lake area since the late Last Deglacial Period. The results cover the late Last Deglacial Period and the Holocene. The climate was very unstable and rather arid during the late Last Deglacial Period. The Holocene can be divided into three periods: the early Holocene ( 11360-8240 cal aB. P.), which was dry but unstable and featured rising temperatures , the mid-Holocene (8240-3200 cal aB. P.), which was warm and wet and the late Holocene ( since 3200 cal aBP), which was cold and dry. Results also show a warm-wet event around 1500 cal aB. P.