Geochemical characteristics of n-alkanes and isoprenoids in coal seams from Zhuji coal mine, Huainan coalfield, China, and their relationship with coal-forming environment

doi:10.1007/s11356-017-0970-6

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Geochemical characteristics of n-alkanes and isoprenoids in coal seams from Zhuji coal mine, Huainan coalfield, China, and their relationship with coal-forming environment
	Liu, Guijian 1,2; Liu, Jingjing 1; Wang, Shanshan 1,2
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2018-04-01
卷号	25 期号:10 页码:9896-9903
关键词	N-alkane Coals Organic Carbon Isotope Depositional Environments Zhuji Coalmine
DOI	10.1007/s11356-017-0970-6
文献子类	Article
英文摘要	Ten coal seams in Upper Shihezi Formation, Lower Shihezi Formation, and Shanxi Formation from the Zhuji mine, Huainan coalfield, China, were analyzed for n-alkanes and isoprenoids (pristine and phytane) using gas chromatography-mass spectrometry (GC-MS), with an aim of reconstructing the coal-forming plants and depositional environments along with organic carbon isotope analyses. The total n-alkane concentrations ranged from 34.1 to 481 mg/kg. Values of organic carbon isotope (delta C-13(org)) ranged from -24.6 to -23.7 parts per thousand. The calorific value (Q(b,d)), maximum vitrinite reflectance (Ro(max)), proximate, and ultimate analysis were also determined but showed no correlation with n-alkane concentrations. Carbon Preference Index (CPI) values ranged from 0.945 to 1.30, suggesting no obvious odd/even predominance of n-alkane. The predominance of C-11 and C-17 n-alkanes implied that the coal may be deposited in the fresh and mildly brackish environment. According to the contrary changing trend of pristine/phytane (Pr/Ph) ratio and boron concentrations, Pr/Ph can be used as an indicator to reconstruct the marine transgression-regression in sedimentary environment of coal formation. The influence of marine transgression may lead to the enrichment of pyrite sulfur in the coal seam 4-2. C3 plants (-32 to -21 parts per thousand) and marine algae (-23 to -16 parts per thousand) were probably the main coal-forming plants in the studied coal seams. No correlation of the n-alkane concentration and redox condition of the depositional environment with organic carbon isotope composition were found.
WOS关键词	CARBON ISOTOPES ; ORGANIC-CARBON ; RIVER-DELTA ; DISTRIBUTIONS ; INDICATORS ; SEDIMENTS ; RATIOS ; PALEOCLIMATE ; BIOMARKERS ; NIGERIA
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000429561900064
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5216]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guijian,Liu, Jingjing,Wang, Shanshan. Geochemical characteristics of n-alkanes and isoprenoids in coal seams from Zhuji coal mine, Huainan coalfield, China, and their relationship with coal-forming environment[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(10):9896-9903.
APA	Liu, Guijian,Liu, Jingjing,&Wang, Shanshan.(2018).Geochemical characteristics of n-alkanes and isoprenoids in coal seams from Zhuji coal mine, Huainan coalfield, China, and their relationship with coal-forming environment.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(10),9896-9903.
MLA	Liu, Guijian,et al."Geochemical characteristics of n-alkanes and isoprenoids in coal seams from Zhuji coal mine, Huainan coalfield, China, and their relationship with coal-forming environment".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.10(2018):9896-9903.