Geochemical research
Section editor – PhD in geology and mineralogy Bazhenova T.K.
Article # 32_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
References

   Beltenev V., Ivanov V., Rozhdestvenskaya I. Stepanova T., Shilov V., Davydov M., Laiba A., Kaylio V., Narkevsky E., Pertsev A., Dobretzova I., Gustaytis A., Popova Ye., Amplieva Ye., Evrard C., Moskalev L. and Gebruk A. New data about hydrothermal fields on the Mid-Atlantic Ridge between 11?–14? N: 32nd cruise of R/V Professor Logatchev. InterRidge News, 2009, vol. 18, pp. 14–18.
   Bogdanov Yu.A., Lisitsyn A.P., Sagalevich A.M., Gurvich E.G. Gidrotermal'nyy rudogenez okeanskogo dna [Hydrothermal ore genesis of the ocean bottom]. Institut okeanologii im. P.P. Shirshova RAN. Moscow: Nauka, 2006, 527 p.
   Boni M., Simoneit B.R.T., Fruh-Green G.L. Leif R.N. and McKenziе J.A. Organic Matter and carbon isotope composition of carbonate nodules and associated sediments from Middle Valley, Leg 139. Proceedings of the Ocean Drilling Program. Scientific Results, 1994, vol. 139, pp. 329-339.
   Cherkashov G., Poroshina I., Stepanova T., Ivanov V., Bel'tenev V., Lazareva L., Rozhdestvenskaya I., Samovarov M., Shilov V., Glasby G. P., Fouquet Y., Kuznetsov V. Seafloor Massive Sulfides from the Northern Equatorial Mid-Atlantic Ridge: New Discoveries and Perspectives. Marine Georesources & Geotechnology, 2010, vol. 28, iss. 3, pp. 222-239.
   Elias, V.O., Simoneit, B.R.T., Cardoso, J.N. Even n-alkane predominances on the Amazon shelf and a Northeast Pacific hydrothermal system. Naturwissenschaften, 1997, vol. 84, pp. 415-420.
   German C., Von Damm K. L. Hydrothermal Processes. Treatise on Geochemistry, 2003, vol. 6, pp. 181–222.
   Hautvelle Y., Michels R., Malartre F., Trouiller A. Vascular plant biomarkers as proxies for palaeoflora and palaeoclimatic changes at the Dogger/Malm transition of the Paris Basin (France). Organic Geochemistry, 2006, vol. 37, pp. 610-625.
   Konn C., Testemale D., Querellou J., Holm N.G. and Charlou J.L. New insight into the contributions of thermogenic processes and biogenic sources to the generation of organic compounds in hydrothermal fluids. Geobiology, 2011, vol. 9, pp. 79–93.
   Kostyreva E.A. Geokhimiya i genezis paleozoyskikh neftey yugo-vostoka Zapadnoy Sibiri [Geochemistry and genesis of Paleozoic oils of southeastern West Siberia]. Editor: Kontorovich A.E. Novosibirsk: «Geo», branch of SO RAN, 2005, 183 p.
   Lisitsyn A.P., Bogdanov Yu.A., Gordeev V.V. Gidrotermal'nye sistemy i osadochnye formatsii sredinno-okeanicheskikh khrebtov Atlantiki [Hydrothermal systems and sedimentary formations of the mid- ocean Atlantic ridge]. Moscow: Nauka, 1993, 256 p.
   Morgunova I.P., Ivanov V.N., Litvinenko I.V., Petrova V.I., Stepanova T.V., Cherkashev G.A. Geokhimiya organicheskogo veshchestva donnykh otlozheniy gidrotermal'nogo polya Ashadze (13°s.sh., SAKh) [Geochemistry of organic matter in bottom sediments of Ashadze hydrothermal field (13°N, Mid-Atlantic ridge)]. Okeanologiya, 2012, vol. 52, no. 3, pp. 372-380.
   Pearson E.J., P. Farrimond, S. J. Pearson. Lipid geochemistry of lake sediments from semi-arid Spain: Relationships with source inputs and environmental factors. Organic Geochemistry, 2007, vol. 38, pp. 1169–1195.
   Peters K., Walters C.C., Moldowan J. The biomarker guide. Second edition. Cambridge University press, 2005, vol. 2, pp. 472-1155.
   Petrova V.I., Batova G.I., Kursheva A.V., Litvinenko I.V., Konovalov D.A. Organicheskoe veshchestvo donnykh osadkov Obskoy guby: raspredelenie, priroda, istochniki [The organic matter of bottom sediments of Ob: distribution, nature and sources]. Geokhimiya, 2010, no. 2, pp. 1-13.
   Romero-Sarmiento M.-F., Riboulleau A., Vecoli M., Versteegh G.J.M. Occurrence of retene in upper Silurian–lower Devonian sediments from North Africa: Origin and implications. Organic Geochemistry, 2010, vol. 41, pp. 302–306.
   Rusakov V.Yu., Shilov V.V., Ryzhenko B.N., Roshchina I.A., Kuz'mina T.G., Kononkova N.N., Dobretsova I.G., Gablina I.F. Osnovnye cherty struktury gidrotermal'no-osadochnogo razreza na primere rudnogo uzla «Semenov» (13°30’-13°31’ s.sh., SAKh) [The main features of the structure of hydrothermal-sedimentary section on the example of the Semenov ore node (13°30'-13°31'N, Mid-Atlantic ridge)]. Proceedings of XIX International Conference (School) in marine geology, 2011, vol. 2, pp. 186-190.
   Simoneit B.R.T. A review of current applications of mass spectrometry for biomarker/molecular tracer elucidations. Mass Spectrometry Reviews, 2005, vol. 24, pp. 719–765.
   Vinogradov M.E., Vereshchaka A.L. Ekosistemy Atlanticheskikh gidroterm [Ecosystems of the Atlantic hydrotherms]. Moscow: Nauka, 2006, 347 p.
   Volkman J.K. Lipid Markers for Marine Organic Matter. The handbook of environmental chemistry, 2006, vol. 2, part N, pp. 27-70.