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  4. 中国科学院新生代地质与环境重点实验室
Clumped isotope analysis of lacustrine endogenic carbonates and implications for paleo-temperature reconstruction: A case study from Dali Lake

文献类型：期刊论文

作者Yue, Jiaojiao2,3; Xiao, Jule1,2,3; Wang, Xu1,2,3; Fan, Jiawei5; Qin, Ben4
刊名SCIENCE CHINA-EARTH SCIENCES
出版日期2021-02-01
卷号64期号:2页码:294-306
ISSN号1674-7313
关键词Lacustrine endogenic carbonate Clumped isotope Paleo-temperature reconstruction Hydrogen peroxide treatment Isobaric interference
DOI10.1007/s11430-020-9697-9
英文摘要Carbonate clumped isotope (Delta(47)) is a new and reliable geothermometer. Endogenic carbonates in lake sediments are good archives to reconstruct lake water temperature using clumped isotope thermometry. However, applications of carbonate clumped isotope thermometry to lacustrine carbonates are still scarce because the existed organic and/or sulfur contaminants in such samples interfere with clumped isotope analysis and cause notable temperature biases. Therefore, exploring an effective way to remove contamination is a prerequisite to widely applying carbonate clumped isotope thermometry to lake sediments. By pretreating fine-grained endogenic carbonates from Dali lake sediments with hydrogen peroxide of different concentrations for different lengths of time, we conducted a series of conditional experiments to seek the optimal pretreatment condition for clumped isotope analysis. Delta(47), Delta(48) offset and 49 parameter were obtained from clumped isotope measurements to assess the effect of contamination removal. Results showed that untreated samples ("0%-0") had a very high 49 parameter. After the treatment with hydrogen peroxide, the 49 parameter was significantly reduced while the Delta(48) offset evidently increased. The Delta(47), Delta(48) offset and 49 parameter of samples pretreated under different conditions showed significant variability, even though the measured Delta(47) temperatures changed within a relatively narrow range (i.e., from 17.0 +/- 1.3 to 22.8 +/- 1.6 degrees C). Among various treated samples, the sample "3%-8" yielded a smaller Delta(48) offset and 49 parameter, and lower Delta(47) temperature of 17.0 +/- 1.3 degrees C. Therefore, "reacting with 3% hydrogen peroxide for 8 h" was suggested to be the optimal condition for removing contaminants from lacustrine endogenic carbonates prior to clumped isotope analysis. At the time when the pretreatment condition was too intense (i.e., H2O2 concentration >3% and/or reaction time >8 h), secondary contaminants might have been generated in the closed reaction system, whose ultimately transformed state may interfere with masses 47, 48. Using the optimal pretreatment procedure, we obtained reasonable Delta(47) temperature changes during the last deglaciation and found a temperature decrease of about 6 degrees C in Northern China during the Younger Dryas period. Our study demonstrates a great potential of applying carbonate clumped isotope thermometry to lacustrine carbonates for paleo-temperature and paleo-elevation reconstructions in the future.
WOS关键词ASIAN SUMMER MONSOON ; LAND-SNAIL SHELLS ; LAST DEGLACIATION ; CLIMATE CHANGES ; C-13-O-18 BONDS ; INNER-MONGOLIA ; CHINA ; SIGNATURES ; SEDIMENTS ; BASIN
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA19050104] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Key R&D Program of China[2017YFA0603400] ; National Natural Science Foundation of China[41931181] ; National Natural Science Foundation of China[41672166] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201905]
WOS研究方向Geology
语种英语
出版者SCIENCE PRESS
WOS记录号WOS:000608667900001
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/100030]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Xiao, Jule
作者单位1.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Zhejiang Univ, Sch Earth Sci, Hangzhou 310027, Peoples R China
5.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Yue, Jiaojiao,Xiao, Jule,Wang, Xu,et al. Clumped isotope analysis of lacustrine endogenic carbonates and implications for paleo-temperature reconstruction: A case study from Dali Lake[J]. SCIENCE CHINA-EARTH SCIENCES,2021,64(2):294-306.
APA Yue, Jiaojiao,Xiao, Jule,Wang, Xu,Fan, Jiawei,&Qin, Ben.(2021).Clumped isotope analysis of lacustrine endogenic carbonates and implications for paleo-temperature reconstruction: A case study from Dali Lake.SCIENCE CHINA-EARTH SCIENCES,64(2),294-306.
MLA Yue, Jiaojiao,et al."Clumped isotope analysis of lacustrine endogenic carbonates and implications for paleo-temperature reconstruction: A case study from Dali Lake".SCIENCE CHINA-EARTH SCIENCES 64.2(2021):294-306.

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