In-situ formation of perylene in lacustrine sediments and its geochemical significance

作     者：Jianyang Guo Haiqing Liao Jianyang Guo;Haiqing Liao

作者机构：State Key Laboratory of Environmental GeochemistryInstitute of GeochemistryChinese Academy of SciencesGuiyang 550002China State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental SciencesBeijing 100012China 

出 版 物：《Acta Geochimica》 (地球化学学报（英文）)

年 卷 期：2020年第39卷第4期

页      面：587-594页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0815[工学-水利工程] 

基　　金：financially supported by the Chinese NSF Projects(Nos.41877406 and 91647205) the jointed project of National Natural Science Foundation and Guizhou Karst Scientific Research Center(U1612441) 

主　　题：Sediment core Source identification Formation mechanism Organic matters 

摘      要：To identify the possible sources and formation mechanism of perylene in sediments,temporal trends of perylene and other polycyclic aromatic hydrocarbons,as well as the organic matters,were analyzed in sediment cores from Dianchi Lake and Sihailongwan Maar Lake in *** high concentrations of perylene were observed in both cores and increased gradually with the sediment *** identification suggested that perylene in both cores were of primarily diagenetic origin,other than the anthropogenic *** terrigenous and aquatic organic matters could be the source of perylene in sediments and diagenetic formation of perylene in sediment is kinetically controlled by the microbial activities under anaerobic *** evidence points to the fact that the formation of perylene in sediment should be an index of the microbial activities and environmental conditions,other than the source of specific organic matters or *** addition,we should be cautious when using any geochemical indicators involving the microbial alternation.