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| Isotope composition of lithalsa ice core in sentsa river valley, eastern sayan | |
| Kvasil'chuk Yu.; Alexeev S.V.; Arzhannikov S.G.; Alexeeva L.P.; Budantseva N.A.; Chizhova Ju.N.; Arzhannikova A.V.; Vasil'chuk A.C.; Kozyreva E.A.; Rybchenko A.A.; Svetlakov A.A. | |
| 发表日期 | 2015 |
| ISSN | 15607496 |
| 卷号 | 19期号:2 |
| 英文摘要 | A lithalsa has been studied in the Sentsa River valley, Eastern Sayan, Buryatia. This is the first detailed study of permafrost in this region, which is based on the analysis of cryostructure and distribution of stable isotopes of oxygen and hydrogen from ice and ice-soil core of the lithalsa of injection-segregation-type. The reticulate chaotic and lenticular cryostructures dominate in the core of the lithalsa. The ice content exceeds 50-60 %. The vertical and lateral distribution of the stable isotopes of oxygen and hydrogen favors the cascade lithalsa formation: At the first stage the ice-soil core of large lithalsa formed. The ice-soil core of small lithalsa formed at the second stage. Nucleation and initial growth of lithalsa can occur at the stage of shallowing of the lake reservoir. The water feeding of lithalsa takes place mainly due to ground water from freezing suspension, but lithalsa with atmospheric and lacustrine type of feeding may also occur. The growth rate of lithalsa is usually quite high and often reaches tens of centimeters per year. Lithalsas of 50-100 years old are usually more than 5 meters in height. |
| 英文关键词 | Eastern sayan; Frost heave; Internal structure; Intrusive ice; Lithalsa; Perennial frost mound; Reticulate cryostructures; Segregated ice; Thick ice lenses |
| 学科领域 | cryosphere; frost heave; frozen ground; hydrogen isotope; ice core; ice thickness; isotopic composition; oxygen isotope; permafrost; stable isotope; Buryatia; Russian Federation; Sayan Mountains |
| 语种 | 英语 |
| scopus关键词 | cryosphere; frost heave; frozen ground; hydrogen isotope; ice core; ice thickness; isotopic composition; oxygen isotope; permafrost; stable isotope; Buryatia; Russian Federation; Sayan Mountains |
| 来源期刊 | Earth's Cryosphere
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/119938 |
| 作者单位 | Department of Geography and Geology, Lomonosov Moscow State University, Leninskie Gory, 1, Moscow, 119991, Russian Federation; SB RAS, Institute of Earth Crust, Lermontov str., 128, Irkutsk, 664033, Russian Federation |
| 推荐引用方式 GB/T 7714 | Kvasil'chuk Yu.,Alexeev S.V.,Arzhannikov S.G.,et al. Isotope composition of lithalsa ice core in sentsa river valley, eastern sayan[J],2015,19(2). |
| APA | Kvasil'chuk Yu..,Alexeev S.V..,Arzhannikov S.G..,Alexeeva L.P..,Budantseva N.A..,...&Svetlakov A.A..(2015).Isotope composition of lithalsa ice core in sentsa river valley, eastern sayan.Earth's Cryosphere,19(2). |
| MLA | Kvasil'chuk Yu.,et al."Isotope composition of lithalsa ice core in sentsa river valley, eastern sayan".Earth's Cryosphere 19.2(2015). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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