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High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP

文献类型：期刊论文

作者You HaiTao2,3; Liu JiaQi1
刊名CHINESE SCIENCE BULLETIN
出版日期2012-09-01
卷号57期号:27页码:3610-3616
关键词Erlongwan Maar Lake sediments varve climate variability
ISSN号1001-6538
DOI10.1007/s11434-012-5244-6
文献子类Article
英文摘要Varve counts with AMS C-14, Cs-137 and Pb-210 dating of sediments (0-900 cm) from Erlongwan Maar Lake, NE China were used to establish a high-resolution chronology series for the late Quaternary. Dry density, total organic carbon (TOC) content, total nitrogen (TN) content, TOC/TN ratios and stable organic carbon isotope (delta C-13(org)) ratios were continuously analyzed on this sediment profile. On the basis of lithological characters, sporo-pollen assemblages and geochemical analyses, we identified 6 climate stages within the last 14 ka BP. The time before the Holocene (14-11.4 ka BP) represents a higher-order oscillation climatic transitional period (I). The entire Holocene climate development (from 11.4 ka BP to present) exhibited an increasing temperature trend, although there were cold and warm alternations (II-VI). The periods included were: II (11.4-9.05 ka BP) warm-wet stage, III (9.05-7.4 ka BP) cold and warm fluctuation stage, IV (7.4-4.2 ka BP) smoothly warming climate stage, V (4.2-1.67 ka BP) climate optimum stage, and VI (from 1.67 ka BP to present) cool and drier stage. Each climate stage began with a warming event and ended with an abrupt cooling event. This climate change cycle had unequal time spaces that were progressively shorter over time. Several abrupt climate shifts occurred at about 9.4-9.05, 8.5-8.2, 7.8-7.4, 4.6-4.2, 3.7-3.25, 2-1.67 and 0.3-0.03 ka BP. Thus, it can be seen that the climate has been warming since 1920 AD, which indicates a new climate stage.
WOS关键词GANG VOLCANIC FIELD ; NORTHEASTERN CHINA ; JILIN PROVINCE ; NE CHINA ; MONSOON RECORD ; PEAT CELLULOSE ; HOLOCENE ; CARBON ; CAVE ; BOG
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000308439500012
出版者SCIENCE PRESS
资助机构National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; GUCAS ; GUCAS ; GUCAS ; GUCAS ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; GUCAS ; GUCAS ; GUCAS ; GUCAS ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; GUCAS ; GUCAS ; GUCAS ; GUCAS ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; GUCAS ; GUCAS ; GUCAS ; GUCAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/84574]  
专题中国科学院地质与地球物理研究所
通讯作者Liu JiaQi
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Coll Earth Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 You HaiTao,Liu JiaQi. High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP[J]. CHINESE SCIENCE BULLETIN,2012,57(27):3610-3616.
APA You HaiTao,&Liu JiaQi.(2012).High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP.CHINESE SCIENCE BULLETIN,57(27),3610-3616.
MLA You HaiTao,et al."High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP".CHINESE SCIENCE BULLETIN 57.27(2012):3610-3616.

入库方式： OAI收割

来源：地质与地球物理研究所

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