Study of Holocene glacier degradation in central Asia by
isotopic methods for long-term forecast of climate changes |
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| Authors: | Vladimir I Shatravin and Tamara V Tuzova |
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| Institution: | Tien-Shan Mountain Scientific Center, Institute of Water Problems and Hydro Power, National Academy of Sciences of the
Kyrgyz Republic;Institute of Water Problems and Hydro Power, National Academy of Sciences of the Kyrgyz Republic |
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| Abstract: | This article presents a summary of our studies of Holocene moraines and glaciers of the Tien-Shan, Pamir, and Himalaya mountains
with the purpose of providing pattern regularity of the Holocene glaciation decomposition. We developed a method for obtaining
reliable radiocarbon dating of moraines with the use of autochthonous organic matter dispersed in fine-grained morainic
material, as well there were shown new possibilities of isotope-oxygen and isotope-uranium analysis for the Holocene glaciations
dynamics. We found that Holocene glaciations disintegrate stadially according to the decaying principle, and seven main stages
may be distinguished. We achieved the absolute dating of the first three stages, identifying these periods as 8,000, 5,000, and 3,400
years ago. The application of the above-mentioned isotope methods of the Holocene glaciations and moraines study will allow researchers
to improve the offered model of the Holocene glaciations disintegration; it will be great contribution to salvation of the
problem of long-term climatic and glaciations forecast. |
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| Keywords: | moraines glaciation Holocene climate changes long-term forecast central Asia |
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