Geochemical research
Section editor – PhD in geology and mineralogy Bazhenova T.K.
Article # 35_2015 submitted on 08/18/2015 displayed on website on 09/21/2015
21 p.
pdf  Hydrocarbons in bottom sediments of the Shtokman area – distribution, genesis, temporal trends
The study of the composition, distribution and genesis of hydrocarbons in the components of the geological environment of water areas allows solving tasks of the forecast of oil and gas potential of mineral resources and at the same time provides a basis for future environmental monitoring in exploration and mining operations. The major geochemical parameters of dispersed organic matter are identified on the basis of long-term study of Late Quaternary sediments of the South-Barents depression. Studies have shown that the organic-geochemical background of Holocene Quaternary sediments of the Shtokmanarea formed due to the sedimentation flux of sedimentary material and possible endogenous influence, which determines the specificity of the local anomaly content and composition of dispersed organic matter. This results in high content of aromatic hydrocarbons and polyarenes and organic carbon, but in the absence of its correlation with particle size of bottom sediments. The composition of the hydrocarbon molecular markers indicates the enriched upper part of the sedimentary section by components of thermal mature dispersed organic matter that can be caused by emissions from point discharge of gas fluid of sedimentary rocks of the lower stratigraphic horizons and/or seeping migration.

Keywords: bottom sediments, hydrocarbons, biomarkers, polycyclic aromatic hydrocarbons, Barents Sea, Shtokman area.
article citation Petrova V.I., Batova G.I., Kursheva A.V., Litvinenko I.V., Morgunova I.P. Uglevodorody v donnykh osadkakh Shtokmanovskoy ploshchadi – raspredelenie, genezis, vremennye trendy [Hydrocarbons in bottom sediments of the Shtokman area – distribution, genesis, temporal trends]. Neftegazovaya Geologiya. Teoriya I Praktika, 2015, vol. 10, no. 3, available at: http://www.ngtp.ru/rub/1/35_2015.pdf
DOI https://doi.org/10.17353/2070-5379/35_2015
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