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  1. No Access

    Article

    Long-Chain Alkenones in Sediments of Lake Utichye-3 (Southern Siberia, Khakassia) as a Paleo-Indicator of Climate Change

    Long-chain alkenones are produced exclusively by certain species of microalgae Isochrysidales of the order of haptophytes (Haptophyta). These are polyunsaturated methyl and ethyl ketones C35–C42 with 2–4 trans...

    A. O. Bulkhin, V. V. Zykov, D. N. Marchenko… in Contemporary Problems of Ecology (2024)

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    Article

    Seasonal and inter-annual sedimentation in meromictic Lake Shira (Siberia, Russia) during disturbance of meromixis

    Detailed studies of processes of sediment-record formation are necessary for accurate sediment-derived paleo environmental reconstructions. In order to understand the deposition of sediments in meromictic Lake...

    D. Y. Rogozin, A. V. Darin, V. V. Zykov, I. A. Kalugin… in Journal of Paleolimnology (2023)

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    Article

    Long-Chain Alkenones in Saline Meromictic Lakes of the North Minusinsk Depression (Southern Siberia): First Knowledge and Possible Correlation with Water-Level Dynamics

    Long-chain alkenones (LCAs)—lipides produced by some microalgae of the Haptophyta group in seas and continental water bodies—are promising paleomarkers of climate changes because they are well-preserved in bot...

    D. Y. Rogozin, A. O. Bulkhin, V. V. Zykov… in Contemporary Problems of Ecology (2020)

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    Article

    Okenone in Bottom Sediments as a Proxy for Changes in the Water Level of a Saline Stratified Lake

    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 stratific...

    D. Y. Rogozin, V. V. Zykov, A. O. Bulkhin… in Doklady Earth Sciences (2020)