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Variations in abundance and distribution of methyltrimethyltridecylchromans (MTTCs) in sediments from saline lacustrine settings in Cenozoic lacustrine basins, China

文献类型：期刊论文

作者Jiang, Kaixi1; Lin, Chunming1; Zhang, Xia1; Cai, Chunfang2; Xiao, Fei3; He, Wenxiang4; Peng, Li5
刊名ORGANIC GEOCHEMISTRY
出版日期2018-07-01
卷号121页码:58-67
关键词MTTCs Palaeosalinity Water column stratification Photic zone euxinia
ISSN号0146-6380
DOI10.1016/j.orggeochem.2018.03.006
文献子类Article
英文摘要This study examines the abundance and distribution of MTTCs and biomarker compositions in samples of MTTC-rich sediments obtained from Paleogene strata in the Bohai Bay, Jianghan and Western Qaidam Basins in China. Biomarker signatures, including high C-35/C-34 hopane ratios, high gammacerane index values, low pristane/phytane (Pr/Ph) ratios and the presence of aryl isoprenoids, indicate saline lacustrine settings and photic zone euxinia (PZE). The distributions of MTTCs indicate significant palaeosalinity differences in the depositional environments of the three sets of samples obtained from the Bohai Bay, Jianghan and Western Qaidam Basins. These sets of samples were deposited under normal to mesosaline, meso- to hypersaline and hypersaline environments, respectively. The delta-MTTC% values are positively correlated with the values of the gammacerane index, but are negatively correlated with the Pr/Ph ratios. This result demonstrates that MTTCs do not form in the upper or lower parts of stratified water columns, but may form in the euxinic portions of photic zones. Therefore, MTTC parameters can only be used to reconstruct palaeosalinity in the euxinic portions of photic zones and are not applicable to the upper or lower parts of stratified water columns. This paper infers that variations in palaeosalinity in the euxinic portions of photic zones likely play a key role in controlling the distribution and abundance of MTTCs. (C) 2018 Elsevier Ltd. All rights reserved.
WOS关键词PRISTANE INVOLVING DERIVATION ; NORTHERN QAIDAM BASIN ; SOURCE ROCKS ; NORTHWEST CHINA ; PETROLEUM SYSTEMS ; ORGANIC-MATTER ; JIANGHAN BASIN ; INDICATORS ; BIOMARKERS ; CHROMANS
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000434096000006
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China(41572112) ; National Natural Science Foundation of China(41572112) ; National Natural Science Foundation of China(41572112) ; National Natural Science Foundation of China(41572112) ; National Natural Science Foundation of China(41572112) ; National Natural Science Foundation of China(41572112) ; National Natural Science Foundation of China(41572112) ; National Natural Science Foundation of China(41572112)
源URL[http://ir.iggcas.ac.cn/handle/132A11/88263]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Lin, Chunming
作者单位1.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
3.China Geol Survey, Shenyang Ctr Geol Survey, Shenyang 110034, Liaoning, Peoples R China
4.Yangtze Univ, Coll Resources & Environm, Wuhan 430100, Hubei, Peoples R China
5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Kaixi,Lin, Chunming,Zhang, Xia,et al. Variations in abundance and distribution of methyltrimethyltridecylchromans (MTTCs) in sediments from saline lacustrine settings in Cenozoic lacustrine basins, China[J]. ORGANIC GEOCHEMISTRY,2018,121:58-67.
APA Jiang, Kaixi.,Lin, Chunming.,Zhang, Xia.,Cai, Chunfang.,Xiao, Fei.,...&Peng, Li.(2018).Variations in abundance and distribution of methyltrimethyltridecylchromans (MTTCs) in sediments from saline lacustrine settings in Cenozoic lacustrine basins, China.ORGANIC GEOCHEMISTRY,121,58-67.
MLA Jiang, Kaixi,et al."Variations in abundance and distribution of methyltrimethyltridecylchromans (MTTCs) in sediments from saline lacustrine settings in Cenozoic lacustrine basins, China".ORGANIC GEOCHEMISTRY 121(2018):58-67.

入库方式： OAI收割

来源：地质与地球物理研究所

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