Hydrogen isotope ratios of aliphatic and diterpenoid hydrocarbons in coals and carbonaceous mudstones from the Liaohe Basin, China

doi:10.1016/j.orggeochem.2005.10.001

	Hydrogen isotope ratios of aliphatic and diterpenoid hydrocarbons in coals and carbonaceous mudstones from the Liaohe Basin, China
	Tuo, JC ; Zhang, MF ; Wang, XB ; Zhang, CL
刊名	ORGANIC GEOCHEMISTRY
	2006
卷号	37 期号:2 页码:165-176
ISSN号	0146-6380
DOI	10.1016/j.orggeochem.2005.10.001
文献子类	Article
英文摘要	Hydrogen-isotope compositions of the aliphatic and diterpenoid hydrocarbons were determined for five coal and carbonaceous mudstone samples collected from drilling cores (1531-1767 m depths) in the Liaohe Basin, China. The bulk organic materials were mainly derived from terrestrial higher plants. delta D values for most of the n-alkanes varied from -150 parts per thousand to -220 parts per thousand, and were not significantly different among the samples. Pristane was 34-69 parts per thousand depleted in D relative to phytane; both pristane and phytane, however, had the same trend of variation in delta D from sample to sample. Diterpenoids were on average 49-81 parts per thousand depleted in D relative to the n-alkanes. Variations in delta D also occurred between different diterpenoids, indicating a different source for these compounds. An enrichment process for the heavy hydrogen isotope was observed as expected when a compound was progressively altered through diagenesis (especially the dehydrogenation process). Overall, delta D and delta C-13 showed distinct patterns between structurally different lipid classes, although possible hydrogen exchange cannot be completely excluded during maturation. Our results further support the notion that hydrogen isotopes of lipid biomarkers from ancient sediments can be used to assess the origin of the organic matter, to determine oil-source rock correlation, and perhaps to reconstruct the paleoenvironment under which the organic material was deposited. (c) 2005 Elsevier Ltd. All rights reserved.
WOS关键词	INDIVIDUAL N-ALKANES ; DELTA-D VALUES ; D/H RATIOS ; CRUDE OILS ; LACUSTRINE SEDIMENTS ; CLIMATE VARIABILITY ; MARINE ZOOPLANKTON ; EARLY DIAGENESIS ; STABLE CARBON ; SOURCE ROCKS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000235695300006
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/66482]
专题	中国科学院地质与地球物理研究所
通讯作者	Tuo, JC
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Gas Geochem, Lanzhou 730000, Gansu, Peoples R China 2.Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China 3.Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA 4.Univ Georgia, Dept Marine Sci, Aiken, SC 29802 USA
推荐引用方式 GB/T 7714	Tuo, JC,Zhang, MF,Wang, XB,et al. Hydrogen isotope ratios of aliphatic and diterpenoid hydrocarbons in coals and carbonaceous mudstones from the Liaohe Basin, China[J]. ORGANIC GEOCHEMISTRY,2006,37(2):165-176.
APA	Tuo, JC,Zhang, MF,Wang, XB,&Zhang, CL.(2006).Hydrogen isotope ratios of aliphatic and diterpenoid hydrocarbons in coals and carbonaceous mudstones from the Liaohe Basin, China.ORGANIC GEOCHEMISTRY,37(2),165-176.
MLA	Tuo, JC,et al."Hydrogen isotope ratios of aliphatic and diterpenoid hydrocarbons in coals and carbonaceous mudstones from the Liaohe Basin, China".ORGANIC GEOCHEMISTRY 37.2(2006):165-176.