Journal Article10.1016/S0146-6380(03)00039-1
Molecular and stable carbon isotopic composition of monomethylalkanes from one oil sand sample: source implications
Hong Lu,Ping'an Peng,Yongge Sun +2 more
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TL;DR: In this article, a Late Triassic oil sand sample from the Lunnan oilfield, Tarim Basin, NW China was used to investigate the source of long-chain monomethylalkanes (MMAs) and their short-chain homologues.
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About: This article is published in Organic Geochemistry. The article was published on 01 Jun 2003.
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Isotope organic geochemistry
TL;DR: The present-day state as well as the history of isotope organic geochemistry is reviewed in this article, where theoretical aspects of fractionation in a system of complex organic molecules, fractionation of carbon isotopes in the biosphere, isotopes as applied to study the transformation of organic matter, geochemistry of oil and gas, evolution of the carbonate-organic carbon system and aspects of astrobiology are considered.
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A review on microbial synthesis of hydrocarbons
TL;DR: Comparisons of comparative data on the intracellular hydrocarbons of different microorganisms (cyanobacteria, aerobic and anaerobic bacteria, yeasts, and mycelial fungi) suggest that Mechanisms of the hydrocarbon synthesis appear to be different in various microorganisms.
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Geochemistry of Palaeozoic marine petroleum from the Tarim Basin, NW China. Part 2: Maturity assessment
Shuichang Zhang,Shuichang Zhang,Haiping Huang,Haiping Huang,Zhongyao Xiao,Digang Liang,Digang Liang +6 more
TL;DR: In this article, the maturity of forty three crude oil samples collected from the cratonic portion of the Tarim Basin, NW China has been assessed using a variety of parameters, including compound ratios of diamondoids, alkylated naphthalenes, methyl phenanthrenes and methyl dibenzothiophenes.
139
Organic geochemical characteristics of the Mesoproterozoic Hongshuizhuang Formation from northern China: implications for thermal maturity and biological sources
TL;DR: In this article, organic and element geochemistry techniques were used to assess the syngeneity and indigeneity of hydrocarbons, and the thermal maturity and biological sources of the organic matter in the Mesoproterozoic Hongshuizhuang Formation.
88
Using Variable Ionization Energy Time-of-Flight Mass Spectrometry with Comprehensive GC×GC To Identify Isomeric Species
TL;DR: In this paper, the fragmentation patterns of molecules in mass spectrometers using electron impact ionization at 70 eV can be useful for molecule identification, provided a match is available in a published EI MS library, but are indistinguishable for many isomeric organic compounds.
82
References
Carbon isotopic composition of an isoprenoid-rich oil and its potential source rock
TL;DR: In this article, the isotopic compositions of both high and low-molecular-weight isoprenoids are around −19.5 and −22.5, respectively.
12
Occurrence and origin of mono-, di-, and trimethylalkanes in modern and Holocene cyanobacterial mats from Abu Dhabi, United Arab Emirates
Fabien Kenig,Jaap S. Sinninghe Damsté,A. C. Kock-Van Dalen,W. Irene C. Rijpstra,A.Y. Huc,Jan W. de Leeuw +5 more
TL;DR: The most abundant components in the hydrocarbon fractions of extracts of four modern and two Holocene cyanobacterial mats (t1500 and 5110 ± 170 y bp) collected in Abu Dhabi (United Arab Emirates) were identified by comparison of mass spectral and relative retention time data with published data as mentioned in this paper.
Mid-chain branched mono- and dimethyl alkanes in hot spring cyanobacterial mats: A direct biogenic source for branched alkanes in ancient sediments?
TL;DR: This paper found suites of monomethyl alkanes, compounds frequently reported in cultured and natural populations of cyanobacteria, in hot spring cyanobacterial mats from Yellowstone National Park, U.S.A. and the Orakei Korako thermal area, New Zealand.
Characterisation of an extremely organic sulphur-rich, 150 Ma old carbonaceous rock : palaeoenvironmental implications
TL;DR: In this article, an extremely organic sulphur-rich coccolithic limestone of the Upper Jurassic Calcaires en plaquettes Formation (southern Jura, France) was analysed for its molecular composition using chemical and instrumental methods.
Saturated hydrocarbon biomarkers in oils of Late Precambrian age from Eastern Siberia
M.G. Fowler,A.G. Douglas +1 more
TL;DR: In this paper, the authors examined three oils, with presumed Late-Precambrian (Vendian) source rocks, from this region for C 15 + saturated hydrocarbon biomarkers using gas chromatography (GC) and GC-MS, and found these oils to have many characteristics in common with other oils of similar age from Eastern Siberia and Oman.