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通过青藏高原中部兹格塘错湖泊沉积物总碳(TC)、总有机碳(TOC)、总氮(TN)、总硫(TS)、氢指数(HI)、氧指数(OI)和有机质的碳同位素(δ13Corg)等多项指标的综合分析,在判断沉积物中有机质来源的基础上,根据各指标的变化特征阐明了各自的气候指示意义,建立了兹格塘错全新世以来的古气候演化序列.10100 cal a BP兹格塘错地区进入全新世,全新世早中期为暖湿气候特征,在8600~8400和7400~7000 cal a BP发生两次强烈冷事件;中晚全新世以来气候变冷变干.这一气候演化过程与其邻近的错鄂的研究结果相近,代表了青藏高原中部全新世的气候演化特点.青藏高原中部全新世气候变化主要受太阳辐射控制.
The total carbon (TOC), total nitrogen (TN), total sulfur (TS), hydrogen index (HI), oxygen index (OI) and the content of organic matter in the sediments of Zgatango Lake in the central Qinghai- Carbon isotope (δ13Corg) and other indicators of a comprehensive analysis, in determining the source of organic matter in the sediment on the basis of the characteristics of each indicator changes in the interpretation of the significance of their respective climate indicators to establish the Zgatang since the Holocene Paleoclimate The evolution sequence was that 10100 cal a BP entered the Holocene in the Zitangtang fault region and was characterized by warm and humid climate in the early and middle Holocene, with two intense cold events occurring between 8600-8400 and 7400-7000 cal a BP. Since the middle and late Holocene, The climate evolution is similar to that of its neighboring fault Erode and represents the Holocene climate evolution in the central Qinghai-Tibet Plateau. The Holocene climate change in the central Tibetan Plateau is mainly controlled by solar radiation.