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| 可可西里库赛湖KS-2006孔矿物组成揭示的青藏高原北部晚全新世气候变迁 | |
| 引用本文： | 姚波,刘兴起,王永波,杨波.可可西里库赛湖KS-2006孔矿物组成揭示的青藏高原北部晚全新世气候变迁[J].湖泊科学,2011,23(6):903-909. |
| 作者姓名： | 姚波 刘兴起 王永波 杨波 |
| 作者单位： | 1. 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,南京210008;中国科学院研究生院,北京100049 2. 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,南京,210008 3. Alfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Potsdam 14473 4. 中国科学院青海盐湖研究所,西宁,810008 |
| 基金项目： | 全球变化研究国家重大科学研究计划项目，中国科学院战略性先导科技专项项目 |
| 摘 要： | 通过对可可西里库赛湖KS-2006孔矿物组合的分析表明:库赛湖沉积的碳酸盐为以文石为主的自生碳酸盐,其含量的高低能够指示温度的变化;盐类矿物只是在2150 cal aBP以来才出现,表明湖水盐度增高,与此同时,石英含量的持续增高可能同冷干气候条件下该区风成活动的加强有关.青藏高原北部晚全新世的气候环境演化过程为:377... |
| 关 键 词： | 青藏高原北部 可可西里 库赛湖 矿物组合 晚全新世 气候演化 |
| 收稿时间： | 1/5/2011 12:00:00 AM |
| 修稿时间： | 2011/3/25 0:00:00 |
Late Holocene climatic changes revealed by mineralogical records from lacustrine core KS-2006 from Lake Kusai in the Hoh Xil area, northern Tibetan Plateau |
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| YAO Bo,LIU Xingqi,WANG Yongbo and YANG Bo.Late Holocene climatic changes revealed by mineralogical records from lacustrine core KS-2006 from Lake Kusai in the Hoh Xil area, northern Tibetan Plateau[J].Journal of Lake Science,2011,23(6):903-909. | |
| Authors: | YAO Bo LIU Xingqi WANG Yongbo and YANG Bo |
| Institution: | State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China;Graduate University of Chinese Academy of Sciences, Beijing 100049, P.R.China,State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China,Alfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Potsdam 14473, Germany and Qinghai Institude of Salt Lakes, Chinese Academy of Sciences, Xining 810008, P.R.China |
| Abstract: | The analyses of mineral assemblages of the core KS-2006 from Lake Kusai in the Hoh Xil area indicate that the carbon-ates in the sediments of Lake Kusai are mostly authigenic and mainly composed of aragonite.The variation of aragonite content probably reflects the temperature of lake water.Salt minerals were found since 2150 cal aBP, which is an indicative of the increase of salinity of lake water.Meanwhile, the increase of quartz content may be related to the enhancement of wind activity which is caused by the cold-dry climate in this area.The process of climatic and environmental evolutions of late Holocene in this area could be divided into 3 stages as follows:the climate was generally warm between 3770 cal aBP and 2550 cal aBP, then the temperature dropped slowly during 2550-2150 cal aBP;from 2150 cal aBP to present, the climate became cold and dry characterized by low temperature and high salinity of lake water, and strengthening of wind activity;however, there is a distinctly warm period occurred during 900-700 cal aBP. |
| Keywords: | Northern Tibetan Plateau Hoh Xil area Lake Kusai mineral assemblage late Holocene climatic evolution |
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