Mineralogy of Holocene Sediments of Shallow Lakes in the Baikal Region: A Connection with Paleoclimate
https://doi.org/10.15356/0373-2444-2015-4-107-112
Abstract
The results of a comprehensive study of the Holocene terrigenous-evaporite section of bottom sediments from one of the shallow saline lakes with carbonate sedimentation, located on the territory of the Barguzin basin (Republic of Buryatia) are provided. The researches were carried out using a wide complex of methods: x-ray diffractometry (XRD), IR spectroscopy, laser granulometry, determination of stable isotopes 18O and 13C and other techniques. The method of mathematical modelling of XRD patterns of endogenic carbonate minerals is established that they are represented by calcite and low-Mg calcite. The dynamics of change in content of carbonates in lake sediments from the base to the roof of the section (from ~4900 years ago to the present day) was seen. The obtained carbonate record, supplemented by results of other analyses reveals the evolution of the lake basin during the Holocene depending on changes in regional climate and environment.
About the Authors
I. V. Danilenko
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Russian Federation
Novosibirsk
Russian Federation
Novosibirsk
P. A. Solotchin
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Russian Federation
Novosibirsk
Russian Federation
Novosibirsk
E. P. Solotchina
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Russian Federation
Novosibirsk
Russian Federation
Novosibirsk
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Review
For citations:
Danilenko I.V., Solotchin P.A., Solotchina E.P. Mineralogy of Holocene Sediments of Shallow Lakes in the Baikal Region: A Connection with Paleoclimate. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2015;(4):107-112. (In Russ.) https://doi.org/10.15356/0373-2444-2015-4-107-112
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