Geochemical research
Section editor – PhD in geology and mineralogy Bazhenova T.K.
Article # 32_2012 submitted on 06/20/2012 displayed on website on 06/25/2012
19 p.
pdf  Organic matter in the modern bottom sediments of the Semenov hydrothermal field (Mid-Atlantic ridge)
Study of the composition and distribution of the dispersed organic matter in the surface bottom sediments of the Semenov hydrothermal field (13°N, Mid-Atlantic ridge) allowed us to identify the main patterns of modern processes of its transformation. The high content of oils in the group composition of the organic matter was found to be an objective indicator for the modern or relict hydrothermal activity of the region. The distribution of molecular markers (isoprenoids, n-alkanes, cyclanes and polyaromatic hydrocarbons) testify to the main controlling factors affecting the composition and transformation level of the organic matter, such as biological diversity and specific abiotic environmental conditions of the hydrothermal field.
Key words: dispersed organic matter, bottom sediments, hydrocarbons, biomarkers, hydrothermal field, gas chromatography-mass spectrometry, Mid-Atlantic ridge.
article citation Morgunova I.P., Petrova V.I., Litvinenko I.V., Cherkashev G.A. Organicheskoe veshchestvo sovremennykh donnykh otlozheniy gidrotermal'nogo polya Semenov (Sredinno-Atlanticheskiy khrebet) [Organic matter in the modern bottom sediments of the Semenov hydrothermal field (Mid-Atlantic ridge)]. Neftegazovaya Geologiya. Teoriya I Praktika, 2012, vol. 7, no. 2, available at: http://www.ngtp.ru/rub/1/32_2012.pdf
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