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Your search keyword '"Darin, Andrey"' showing total 3 results
Start Over Author "Darin, Andrey" Topic microchemistry
3 results on '"Darin, Andrey"'

1. RECONSTRUCTION OF THE LAKE SHIRA LEVEL CHANGES IN THE LAST 1500 YEARS USING GEOCHEMICAL INDICATORS.

Author

Maksimova, Natalya, Darin, Andrey, Kalugin, Ivan, Markovitch, Tatiana, Rakshun, Yakov, Sorokoletov, Dmitriy, and Darin, Fedor

Subjects
*ATMOSPHERIC models, *SEDIMENTS, *MICROCHEMISTRY, *SYNCHROTRON radiation, *MODELS & modelmaking
Abstract

Meromictic Shira Lake is a good representative object for detail climate modeling due to its local hydroclimatic information and annually laminated bottom sediments. For geochemical research was used method of scanning microanalysis with synchrotron radiation. We used a one dimensional scanner and a system for collimating and focusing the beam that allowed us to perform measurements of more than 20 minor elements with detection limits of ~1-5 ppm in cores of bottom sediments with a spatial resolution of 100 µm. The applied experimental apparatus allowed us to reach a new quality of paleoclimatic reconstructions with annual time resolution. [ABSTRACT FROM AUTHOR]

Published
2014

2. Lake Shira Level Changes in Late Holocene.

Author

DARIN, Andrey, KALUGIN, Ivan, MAKSIMOVA, Natalya, MARKOVICH, Tatiana, RAKSHUN, Yakov, SOROKOLETOV, Dmitryi, DARIN, Fedor, and RAGOZIN, Denis

Subjects
*STRONTIUM, *CLIMATE change, *LAMINATED materials, *SEDIMENTS, *SALINITY, *MICROCHEMISTRY
Abstract

The article discusses the water level changes and strontium content in Shira Lake, a meromictic lake in Khakassia, Russia. Topics discussed include the impact of climatic changes and hydroclimatic conditions in the annually laminated bottom sediments of the lake, the salinity and geochemical composition of the lake, and the use of scanning microanalysis as the study method.

Published
2014
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3. The Study Internal Structure of the Annual Layers in Lake Sediments Using Synchrotron Radiation with X-ray Focusing Optics.

Author

DARIN, Fedor, KALUGIN, Ivan, DARIN, Andrey, and RAKSHUN, Yakov

Subjects
LAMINATED materials, SEDIMENTARY structures, SYNCHROTRON radiation, FOCUS (Optics), X-ray spectroscopy, MICROCHEMISTRY, MONOCHROMATORS, EXCITATION (Physiology)
Abstract

The article discusses a study on the internal structure of annually laminated sedimentary layers of sediment lakes. Topics discussed include the use of synchrotron radiation and X-ray radiation in focusing optics, the basic bloc of scanning X-ray fluorescence microanalysis such as monochromator and polycapillary optics, the sediment accumulation, and the excitation of microprobes.

Published
2014
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