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| DOI | 10.21782/KZ1560-7496-2019-5(35-48) |
| Ice complex structure inferred from vertical electrical sounding (southern margin of the Lena-Amga interfluve) [СТРОЕНИЕ ЛЕДОВОГО КОМПЛЕКСА ЮЖНОЙ ОКРАИНЫ ЛЕНО-АМГИНСКОГО МЕЖДУРЕЧЬЯ ПО ДАННЫМ МЕТОДА ВЕРТИКАЛЬНОГО ЭЛЕКТРИЧЕСКОГО ЗОНДИРОВАНИЯ] | |
| Neradovskii L.G. | |
| 发表日期 | 2019 |
| ISSN | 15607496 |
| 卷号 | 23期号:5 |
| 英文摘要 | Discussed are the results of a cluster analysis of vertical electrical sounding data with an aim to characterize the Ice Complex structure in its southern margin stretching along the Berkakit-Tommot-Yakutsk railway corridor (the Tommot-Kerdem section). In this area, the geoelectrical section is strongly variable and generally reflects a 5-layer structure of the Ice Complex. Ice contents are higher in the upper 30 m of the Ice Complex (layers 1-3) which consist of very ice-rich silts with relict syngenetic ice wedges. Layers 4 and 5 occurring lower (to depths of 50-60 m), contain massive ice bodies of unknown origin, which does not preclude the presence of firn ice in Quaternary-Tertiary sediments. The data obtained by vertical electrical sounding and electromagnetic profiling indicate a strong decrease in volumetric ice content in the upper 10-15 m silts (705-th track kilometer) at the boundary between the Magan and Emilskaya terraces in the Lena-Amga watershed, which is the southern end of the vast alas province (thermokarst basins) of the low to medium-height terraces along the right bank of the Lena River valley. A drastic reduction in the amount of buried massive ice bodies in the upper layers of the southern margin section and complete disappearance in the lower layers of the Ice Complex occur at the 697-th track kilometer, on the top of the Emilskaya terrace. Within 3 km further south, ice bodies in the upper 10 m from the terrace surface are only sporadically present, with the occurrence probability of 0.1 %. © 2019 Academic Publishing House Geo. All rights reserved. |
| 英文关键词 | Boreholes; Cluster analysis; Electrical resistivity; Geoelectric section; Ice Complex; Massive ground ice; Vertical electrical sounding |
| 学科领域 | borehole; cluster analysis; electrical resistivity; geoelectric field; ice; vertical electrical sounding; Lena River; Russian Federation |
| 语种 | 英语 |
| scopus关键词 | borehole; cluster analysis; electrical resistivity; geoelectric field; ice; vertical electrical sounding; Lena River; Russian Federation |
| 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/118995 |
| 作者单位 | Melnikov Permafrost Institute, SB RAS, 36, Merzlotnaya str., Yakutsk, 677010, Russian Federation |
| 推荐引用方式 GB/T 7714 | Neradovskii L.G.. Ice complex structure inferred from vertical electrical sounding (southern margin of the Lena-Amga interfluve) [СТРОЕНИЕ ЛЕДОВОГО КОМПЛЕКСА ЮЖНОЙ ОКРАИНЫ ЛЕНО-АМГИНСКОГО МЕЖДУРЕЧЬЯ ПО ДАННЫМ МЕТОДА ВЕРТИКАЛЬНОГО ЭЛЕКТРИЧЕСКОГО ЗОНДИРОВАНИЯ][J],2019,23(5). |
| APA | Neradovskii L.G..(2019).Ice complex structure inferred from vertical electrical sounding (southern margin of the Lena-Amga interfluve) [СТРОЕНИЕ ЛЕДОВОГО КОМПЛЕКСА ЮЖНОЙ ОКРАИНЫ ЛЕНО-АМГИНСКОГО МЕЖДУРЕЧЬЯ ПО ДАННЫМ МЕТОДА ВЕРТИКАЛЬНОГО ЭЛЕКТРИЧЕСКОГО ЗОНДИРОВАНИЯ].Earth's Cryosphere,23(5). |
| MLA | Neradovskii L.G.."Ice complex structure inferred from vertical electrical sounding (southern margin of the Lena-Amga interfluve) [СТРОЕНИЕ ЛЕДОВОГО КОМПЛЕКСА ЮЖНОЙ ОКРАИНЫ ЛЕНО-АМГИНСКОГО МЕЖДУРЕЧЬЯ ПО ДАННЫМ МЕТОДА ВЕРТИКАЛЬНОГО ЭЛЕКТРИЧЕСКОГО ЗОНДИРОВАНИЯ]".Earth's Cryosphere 23.5(2019). |
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