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1.


   
    Carotenoids in bottom sediments of lake Shira as a paleoindicator for reconstruction of Lake States in Khakassiya, Russia / V. V. Zykov [et al.] // Contemporary Problems of Ecology. - 2012. - Vol. 5, Is. 4. - P434-442, DOI 10.1134/S199542551204018X . - ISSN 1995-4255
Кл.слова (ненормированные):
anaerobiosis -- bottom sediments -- holomixis -- meromixis -- okenone -- bacterium -- bioindicator -- biomarker -- carotenoid -- Holocene -- lacustrine deposit -- meromixis -- molecular analysis -- paleoclimate -- photoautotrophy -- reconstruction -- Khakassia -- Lake Shira -- Russian Federation
Аннотация: The concentrations of carotenoids buried in the bottom sediments of Lake Shira (Siberia, Khakassiya) have analyzed for the period of the last 2300 years. The bottom sediments were found to contain carotenoids, which are molecular markers of the corresponding groups of Phototrophic organisms. The bottom sediments of Lake Shira were shown to be a promising object for climate reconstructions of the Late Holocene in southern Siberia. В© 2012 Pleiades Publishing, Ltd.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 5, build. 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk 660041, Russian Federation
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Acedemika Koptyuga pr. 3, Novosibirsk 630090, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zykov, V.V.; Rogozin, D.Y.; Kalugin, I.A.; Dar'in, A.V.; Degermendzhi, A.G.

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2.


   
    Okenone in Bottom Sediments as a Proxy for Changes in the Water Level of a Saline Stratified Lake / D. Y. Rogozin, V. V. Zykov, A. O. Bulkhin, A. G. Degermendzhi // Dokl. Earth Sci. - 2020. - Vol. 493, Is. 1. - P565-568, DOI 10.1134/S1028334X20070168. - Cited References:8. - This work was supported by the Russian Foundation for Basic Research, project no. 19-05-00428. . - ISSN 1028-334X. - ISSN 1531-8354
РУБ Geosciences, Multidisciplinary
Рубрики:
SHIRA
   SIBERIA

   CYCLES

Кл.слова (ненормированные):
okenone -- purple sulfur bacteria -- meromixis -- water level -- stratification -- climate reconstruction
Аннотация: Long-term measurements show that the sedimentation dynamics of okenone (a carotenoid of purple sulfur bacteria) reflects the abundance of purple sulfur bacteria, the hydrogen sulfide content, and the stratification stability in the closed saline meromictic Shira Lake (Southern Siberia, Russia). The profile of fossil okenone in bottom sediments has been compared with the data on the water surface level in the lake over the last 100 years. The peaks of okenone correspond to lake transgressions, and the drops in the okenone content coincide with periods of stable or decreasing water level. Our observations show that fossil okenone may be used as a qualitative proxy of meromictic conditions and as a quantitative proxy of the water level dynamics in closed stratified lakes. Therefore, okenone can be used for qualitative reconstructions of the water balance and climate humidity in arid zones.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Rogozin, D. Y.; Zykov, V. V.; Bulkhin, A. O.; Degermendzhi, A. G.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-05-00428]

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