Relict tetracyclic and pentacyclic hydrocarbons in ancient oils of the Siberian Platform

Aref'yev, O. A.

doi:10.1080/00206818209451016

Cited by 3 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Didyk et al 1978;McKirdy et al 1983McKirdy et al ,1984ten Haven et al 1985ten Haven et al , 1988Brassell et al 1987) and are likely to reflect input of significant amounts of lipid from archaebacteria (Kates 1978;Langworthy 1985). The chromatographic expansions and GCMS data originally presented by Fowler and Douglas (1987), Makushina et al (1978) and Arefev et al (1980) and elaborated using MRM by Summons et al (1988 b) demonstrate that the branching position in the mono-298 methyl alkanes changes as the carbon number increases. The C 13 -C 18 homologues have terminally branched isomers predominating while the higher homologues (C have increasing relative abundances of mid-chain, branched isomers.…”

Section: Acyclic Componentsmentioning

confidence: 88%

“…Oils from the Siberian Platform have unusual biomarker compositions (Arefev et al 1980;Fowler and Douglas 1987). They share features, such as the strong predominance of 24-ethylcholestane isomers and high abundances of mono methyl alkanes, with the Late Proterozoic oils from the Huqf Group of Oman (Grantham 1986;Klomp 1986;Grantham et al 1988).…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Hydrocarbon Composition of the Late Proterozoic Oils of the Siberian Platform: Implications for the Depositional Environment of Source Rocks

Summons

Powell

1992

Early Organic Evolution

View full text Add to dashboard Cite

Oils reservoired in Cambrian and Vendian (Latest Proterozoic) marine carbonates and terrigenous clastic rocks of the Siberian Platform could have been sourced either by deeply buried basinal shales of Riphean age or, by carbonate/evaporite shelf sediments of Latest Proterozoic to Early Cambrian age. The oils from three fields in the region all have very similar hydrocarbon compositions which include the following distinctive features: high relative abundance of acyclic isoprenoids and Pr/Ph < 1; high relative a bun dance of rxrxCf. and rxjJjJ steranes and virtual absence of rearranged steranes; high abundance of 29,30-bisnorhopane and norhopane relative to hopane; high abundance of 28.30-bisnorhopane, 2rx-methyl hopanes and other unusual triterpenoids; and the presence of aryl isoprenoids. These aspects of the biomarker distributions are similar to those found in some carbonates and carbonate/evaporites from the Phanerozoic and evidently correlate with sediment lithology because they relate to biological and chemical conditions prevailing in these depositional environments. Thus, these Siberian Platform oils have likely been sourced within the Vendian/Cambrian carbonate sequence.Additional aspects of the hydrocarbon assemblage are the very high relative abundances of C 29 desmethylsteranes, C 30 3jJ-methyl-and 2cx-methylsteranes and C 3 ! 3jJ-ethylsteranes, high relative abundance of monomethyl alkanes with a preference for mid-chain isomers and an unusually light carbon isotope signature. These features comprise a pattern seen in other organic matter of Vendian age, including the Huqf Group oils of Oman. They are apparently associated with special features of the biology and palaeoenvironment which existed during the Latest Proterozoic.

show abstract

Section: Acyclic Componentsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 98%

Hydrocarbon Composition of the Late Proterozoic Oils of the Siberian Platform: Implications for the Depositional Environment of Source Rocks

Summons

Powell

1992

Early Organic Evolution

View full text Add to dashboard Cite

show abstract

“…Hydrocarbon compositions of oils from Upper Proterozoic and Cambrian Khatanga and Baikit petroleumbearing regions are very similar (Aref'ev et al 1980;Antsiferov et al 1981;Kontorovich et al 1986). Studies on the composition peculiarities of Riphean Yurubchenskaya oil show that methanic-naphthenic hydrocarbons represent about 80% of the analysed oil fraction.…”

Section: Petroleum Source Rocks: Genetic Relation Between Organic Matmentioning

confidence: 96%

Lena-Tunguska Upper Proterozoic-Palaeozoic petroleum superprovince

Конторович¹,

Mandelbaum²,

Surkov³

et al. 1990

View full text Add to dashboard Cite

The Lena-Tunguska Superprovince is the only region of the world where extensive economic Upper Proterozoic petroleum production is proved. This province extends the stratigraphical range of hydrocarbon accumulations to the deposits older than one billion years.The Upper Proterozoic deposits are represented mainly by Riphean carbonate formations and terrigene carbonate sulphate-bearing sediments of Vendian (Eocambrian). These deposits cover an area of some two million square kilometres.Oil and gas potential in the Vendian and Upper Cambrian sediments in the central and southern regions of the province is proven and more than thirty fields have been discovered. Sheet, roof, lithologically and tectonically screened and non-anticlinal pools dominate these discoveries. The Lower Cambrian salts are the regional seal.Riphean petroleum potential has been proved in the western part of the province where the extensive Yurubcheno-Takhomsk zone of oil and gas accumulations occur within the Baikit antecline and Katanga Trough. Oils appear to be of one genetical type as low sulphur, naphthenic-rich oils containing n-alkanes, isoprcnoids and are enriched in 12,13monomethylalkanes, 12C carbon isotope.The main current oil-producing plays are confined to Riphean Formations. TheLena-Tunguska Petroleum Superprovince (approximately 2.8 x l06 km 2) Occupies the major part of the ancient Siberian Platform and is one of the largest on the Euroasian continent. It was first described by Kontorovich in 1975 (Kontorovich et al. 1975.

show abstract

“…This situation finds ample substantiation in the publication of Arefyev et al (1980) which is devoted to genetically homogeneous crudes of Eastern Siberia. This situation finds ample substantiation in the publication of Arefyev et al (1980) which is devoted to genetically homogeneous crudes of Eastern Siberia.…”

Section: XImentioning

confidence: 97%

Petroleum Hydrocarbons

Петров

1987

View full text Add to dashboard Cite

Relict tetracyclic and pentacyclic hydrocarbons in ancient oils of the Siberian Platform

Cited by 3 publications

References 2 publications

Hydrocarbon Composition of the Late Proterozoic Oils of the Siberian Platform: Implications for the Depositional Environment of Source Rocks

Hydrocarbon Composition of the Late Proterozoic Oils of the Siberian Platform: Implications for the Depositional Environment of Source Rocks

Lena-Tunguska Upper Proterozoic-Palaeozoic petroleum superprovince

Petroleum Hydrocarbons

Contact Info

Product

Resources

About