Carbonate sedimentation in shallow saline lakes of Western Transbaikalia: The response to Holocene climate changes

被引:7
|
作者
Solotchin, P. A. [1 ]
Sklyarov, E. V. [2 ]
Solotchina, E. P. [1 ]
Markova, Y. N. [3 ]
机构
[1] Russian Acad Sci, Siberian Branch, Sobolev Inst Geol & Mineral, Akad Koptyuga Pr 3, Novosibirsk 630090, Russia
[2] Russian Acad Sci, Siberian Branch, Inst Earths Crust, Ul Lermontova 128, Irkutsk 664033, Russia
[3] Russian Acad Sci, Vinogradov Inst Geochem, Siberian Branch, Ul Favorskogo 1a, Irkutsk 650033, Russia
基金
俄罗斯基础研究基金会;
关键词
BAIKAL REGION; DOLOMITE; RECORD; PALEOCLIMATE; CONNECTION; CALCITES;
D O I
10.1134/S1028334X17040213
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
New research results are presented on the processes of carbonate sedimentation in shallow saline lakes of Western Transbaikalia by the example of the Holocene bottom sediments of Sul'fatnoe Lake (the Selenga Dauria). The techniques of X-ray diffractometry (XRD), IR spectroscopy, laser granulometry, and isotope and elemental analyses were used. By means of decomposition the XRD profiles using the Pearson VII function, the carbonate phases were identified and their quantitative ratios were determined. The evolution of the lake basin caused by climate changes in the Holocene was reconstructed by comparing the carbonate record to the concentrations determined for the O-18 and C-13 stable isotopes and to lithological, geochemical, and palynological data in the dated sedimentary section.
引用
收藏
页码:461 / 466
页数:6
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