Journal ArticleDOI
An improved measure of the odd-even predominance in the normal alkanes of sediment extracts and petroleum
E.S Scalan,J.E Smith +1 more
TLDR
The odd-even predominance (OEP) as discussed by the authors is a measure for computing the ratio of the relative concentrations of homologs which contain an odd number of carbon atoms to those that contain an even number.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1970-05-01. It has received 348 citations till now. The article focuses on the topics: Homologous series & Alkane.read more
Citations
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MonographDOI
The Biomarker Guide
TL;DR: The second edition of The Biomarker Guide as mentioned in this paper provides a comprehensive account of the role that biomarker technology plays both in petroleum exploration and in understanding Earth history and processes.
Journal ArticleDOI
Classification and thermal history of petroleum based on light hydrocarbons
TL;DR: In this paper, two indices are employed, termed the Heptane and Isoheptane Values, based on analyses of gasoline-range hydrocarbons. The indices assess degree of paraffinicity.
Journal ArticleDOI
Organic aerosols in Eastern Mediterranean: components source reconciliation by using molecular markers and atmospheric back trajectories
TL;DR: In this paper, molecular markers, such as 6,10,14-trimethylpentadecan-2-one and α,ω-dicarboxylic acids with Cn > C20, have been conjointly used to reconcile Eastern Mediterranean marine organic aerosols with their emission sources.
Journal ArticleDOI
A revised carbon preference index
TL;DR: In this article, the authors report a curious inconsistency in carbon preference indices (CPI) calculations that has not been documented and to propose a revised CPI formula, which will produce more reliable results.
Journal ArticleDOI
Terrestrial and marine biomarkers in a seasonally ice-covered Arctic estuary — integration of multivariate and biomarker approaches
TL;DR: In this article, the authors used Principal Component Analysis (PCA) to provide a robust classification of biomarkers according to their primary source (e.g. terrigenous, marine) and to identify which biomarkers covary.
References
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Journal ArticleDOI
Distribution of n-paraffins as a clue to recognition of source beds
TL;DR: A preference for n-paraffins with odd numbers of carbon atoms is widespread in Recent sediments as discussed by the authors. But the results of the analysis showed no preference in the heavy n -paraifins for molecules of either odd- or even-carbon number.
Journal ArticleDOI
A postulated role of fatty acids in petroleum formation
J.E Cooper,E.E Bray +1 more
TL;DR: In this paper, a change from a preference for even-carbon-numbered fatty acids in recent sediments to no preference in petroleum reservoir waters was predicted, and studies of fatty acid distributions support this prediction and provide evidence for a relationship between fatty acid and n -paraffin distributions.
Journal ArticleDOI
Distributions of n -Paraffins in Crude Oils and their Implications to Origin of Petroleum
Journal ArticleDOI
Normal fatty acids in sediments
TL;DR: Normal fatty acids have been found by several investigators in a number of sediments ranging in age from Precambrian to Recent as mentioned in this paper, and a variety of molecular distributions have been observed.
Journal ArticleDOI
Geochemistry of lipids
TL;DR: The occurrence of phytane, pristane, and fatty acids in Precambrian sedimentary rocks 2.7 billion years old has been interpreted to indicate the existence of life processes similar to those that are operative today as mentioned in this paper.