Progress of Long-Chain Alkyl Diols in Marine Environmental Reconstruction

doi:10.11867/j.issn.1001-8166.2019.02.0140

Advances in Earth Science ›› 2019, Vol. 34 ›› Issue (2): 140-147. doi: 10.11867/j.issn.1001-8166.2019.02.0140

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Progress of Long-Chain Alkyl Diols in Marine Environmental Reconstruction

Di Hou ^1, ²,Junjie Zhang ^1, ²,Lei Xing ^1, ^2, ^*( ),Yang Zhou ^1, ²

1. Key Laboratory of Marine Chemistry Theory and Technology，Ministry of Education，Ocean University of China，Qingdao 266100，China
2. Department of Marine Chemistry, Ocean University of China, Qingdao 266100，China

Received:2018-09-28 Revised:2018-12-17 Online:2019-02-10 Published:2019-03-26
Contact: Lei Xing E-mail:xinglei@ouc.edu.cn
About author:Hou Di（1994-）, male, Yuncheng City, Shanxi Province， Master student. Research areas include marine organic geochemistry. E-mail:15762274455@163.com|Xing Lei（1975-）, male, Yantai City, Shandong Province, Professor. Research areas include marine organic geochemistry. E-mail: xinglei@ouc.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China “Reconstruction of the sources of sedimentary organic matter in the coastal areas of the East China Sea using long-chain alkyl diols proxies”(No. 41876073);The National Key Programs for Fundamental Research and Development “Response of estuarine ecosystem to large reservoir regulation and coping strategy”(No. 2016YFA0600904);Project supported by the National Natural Science Foundation of China “Reconstruction of the sources of sedimentary organic matter in the coastal areas of the East China Sea using long-chain alkyl diols proxies” （No. 41876073）； The National Key Programs for Fundamental Research and Development “Response of estuarine ecosystem to large reservoir regulation and coping strategy” （No. 2016YFA0600904）.

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Di Hou,Junjie Zhang,Lei Xing,Yang Zhou. Progress of Long-Chain Alkyl Diols in Marine Environmental Reconstruction[J]. Advances in Earth Science, 2019, 34(2): 140-147.

Long-chain alkyl diols contain an alkyl chain with alcohol groups at C1 and at the middle position of carbon chain, which exist widely in seas, rivers and lakes. It has been proven that these compounds are relatively resistant to degradation and have an extended occurrence in the geological record. In addition, they are relatively easy to identify. Therefore, long-chain alkyl diols can be used as potential biomarkers to trace the past change in paleoenvironment and paleoclimate. Although the sources of long-chain alkyl diols are still uncertain, the studies indicate that 1, 13 and 1, 15-diols are mainly produced by eustigmatophytes, while 14-diols are mainly from diatom Proboscia. So far, some proxies based on long-chain alkyl diols have been established to indicate the change in diatom productivity, upwelling intensity, salinity, sea surface temperature, riverine organic matter input and surface seawater nutrient concentration, which are significant for paleoenvironmental reconstruction. Current research and application of long-chain alkyl diols proxies were summarized, which would be helpful for further studying the source of long-chain alkyl diols and the application of relevant proxies in China’s marginal sea.

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