Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1134/S1028334X20070168

Ключевые слова: 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 bottПоказать полностьюom 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.

Журнал: DOKLADY EARTH SCIENCES

Выпуск журнала: Vol. 493, Is. 1

Номера страниц: 565-568

ISSN журнала: 1028334X

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

• Rogozin D.Y. (Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Zykov V.V. (Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia)
• Bulkhin A.O. (Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Degermendzhi A.G. (Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia)

• Web of Science Core Collection
• Scopus