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Distributions and temperature dependence of branched glycerol dialkyl glycerol tetraethers in recent lacustrine sediments from China and Nepal

文献类型：期刊论文

作者Sun, Qing1; Chu, Guoqiang2; Liu, Meimei1; Xie, Manman2; Li, Shengqiang3; Ling, Yuan1; Wang, Xiaohua2; Shi, Liming1; Jia, Guodong4; Lue, Houyuan2
刊名JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
出版日期2011-01-27
卷号116
ISSN号2169-8953
DOI10.1029/2010JG001365
文献子类Article
英文摘要Glycerol dialkyl glycerol tetraether (GDGT) membrane lipids in surface sediments from 24 lakes in China and Nepal were analyzed. The result shows that branched GDGT lipids occur widely in the studied lake sediments. The different distribution of branched GDGTs between the Chinese soils from Weijers et al. (2007b) and the Chinese lake sediments indicates that the branched GDGTs in the lacustrine sediment are the mixture of allochthonous and autochthonous branched GDGTs. Our result supports the suggestion that temperature is the principal factor affecting the distribution of GDGTs. Seasonality, sources, and precipitation increase the uncertainty of the correlation between the methylation index of branched tetraethers (MBT)/cyclization ratio of branched tetraethers (CBT) proxy and the temperature. The correlations of the MBT/CBT index with mean annual air temperature (T) for the global lakes are T = 6.803 - 7.062 x CBT + 37.090 x MBT (n = 139, p < 0.0001, R-2 = 0.62, and RMSE = 5.24 degrees C); for the global lakes with pH < 8.5, T = 3.949 - 5.593 x CBT + 38.213 x MBT (n = 100, p < 0.0001, R-2 = 0.73, and RMSE = 4.27 degrees C). The significant correlation suggests that the MBT/CBT proxy might be used as a potential paleotemperature proxy in the limnic environment. The MBT/CBT proxy provides an independent way to evaluate and verify the sensitivities of the different proxies for paleotemperature reconstruction from lacustrine sediments.
WOS关键词CRENARCHAEOTAL MEMBRANE-LIPIDS ; TERRESTRIAL ORGANIC-MATTER ; ENVIRONMENTAL CONTROLS ; MASS-SPECTROMETRY ; TROPICAL AFRICA ; LAKE-SEDIMENTS ; TRAINING SET ; BIT INDEX ; PROXY ; PALAEOTHERMOMETER
WOS研究方向Environmental Sciences & Ecology ; Geology
语种英语
WOS记录号WOS:000286760300003
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China(40772119 ; National Natural Science Foundation of China(40772119 ; public welfare project(200911043-29) ; public welfare project(200911043-29) ; Ministry of Land and Resources ; Ministry of Land and Resources ; 4097212 ; 4097212 ; 40971120) ; 40971120) ; National Natural Science Foundation of China(40772119 ; National Natural Science Foundation of China(40772119 ; public welfare project(200911043-29) ; public welfare project(200911043-29) ; Ministry of Land and Resources ; Ministry of Land and Resources ; 4097212 ; 4097212 ; 40971120) ; 40971120) ; National Natural Science Foundation of China(40772119 ; National Natural Science Foundation of China(40772119 ; public welfare project(200911043-29) ; public welfare project(200911043-29) ; Ministry of Land and Resources ; Ministry of Land and Resources ; 4097212 ; 4097212 ; 40971120) ; 40971120) ; National Natural Science Foundation of China(40772119 ; National Natural Science Foundation of China(40772119 ; public welfare project(200911043-29) ; public welfare project(200911043-29) ; Ministry of Land and Resources ; Ministry of Land and Resources ; 4097212 ; 4097212 ; 40971120) ; 40971120)
源URL[http://ir.iggcas.ac.cn/handle/132A11/74374]  
专题中国科学院地质与地球物理研究所
通讯作者Sun, Qing
作者单位1.Natl Res Ctr Geoanal, Beijing 100037, Peoples R China
2.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.CEA, Inst Earthquake Sci, Beijing 100036, Peoples R China
4.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Qing,Chu, Guoqiang,Liu, Meimei,et al. Distributions and temperature dependence of branched glycerol dialkyl glycerol tetraethers in recent lacustrine sediments from China and Nepal[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2011,116.
APA Sun, Qing.,Chu, Guoqiang.,Liu, Meimei.,Xie, Manman.,Li, Shengqiang.,...&Lue, Houyuan.(2011).Distributions and temperature dependence of branched glycerol dialkyl glycerol tetraethers in recent lacustrine sediments from China and Nepal.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,116.
MLA Sun, Qing,et al."Distributions and temperature dependence of branched glycerol dialkyl glycerol tetraethers in recent lacustrine sediments from China and Nepal".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 116(2011).

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来源：地质与地球物理研究所

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