气候变化领域集成服务门户(CCPortal): Upper quaternary deposits of the nadym ob area: Stratigraphy, cryogenic formations, and deposition environments

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DOI	10.21782/KZ1560-7496-2017-6(14-25)
	Upper quaternary deposits of the nadym ob area: Stratigraphy, cryogenic formations, and deposition environments
	Zykina V.S.; Zykin V.S.; Volvach A.O.; Ovchinnikov I.Yu.; Sizov O.S.; Soromotin A.V.
发表日期	2017
ISSN	15607496
卷号	21 期号:6
英文摘要	The paper presents new data on the structure, lithology, paleopedology, geomorphology, and radiocarbon geochronology of Late Pleistocene and Holocene deposits in the Nadym Ob area of the West Siberian Plain. The study reveals several distinct events in the Late Pleistocene and Holocene climate and deposition history of the area. Fluvial deposition during the first stage corresponding to the end of MIS-3 (Karga interstadial) produced the second river terrace. During the next stage, in the Last (Sartan) Glacial (MIS-2), primary sand wedges formed as frost cracks became filled with aeolian sand. The presence of sand wedges is inconsistent with the existence of ice sheets in the area during MIS-2. The first terrace of the Nadym River and its tributaries accumulated during the third stage (from about 10.7-10.3 Kyr BP), and peatbogs were formed in the Holocene. The latest stage began in the late Holocene after a long deposition gap and produced aeolian sands accumulation upon the second and first river terraces. The aeolian sand deposition for the past 1200 years was punctuated by short episodes of soil formation and vegetation growth in a slightly warmer and moister climate. © Academic Publishing House Geo. All rights reserved.
英文关键词	Aeolian processes; Nadym Ob area; Sand wedge; Upper Quaternary deposits; West Siberian Plain
学科领域	deposition; depositional environment; eolian process; marine isotope stage; paleoclimate; Pleistocene-Holocene boundary; sand; stratigraphy; Russian Federation; Siberian Lowland
语种	英语
scopus关键词	deposition; depositional environment; eolian process; marine isotope stage; paleoclimate; Pleistocene-Holocene boundary; sand; stratigraphy; Russian Federation; Siberian Lowland
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/119480
作者单位	Sobolev Institute of Geology and Mineralogy, SB RAS, 3, Acad. Koptuga ave., Novosibirsk, 630090, Russian Federation; Novosibirsk National Research State University, 2, Pirogova str., Novosibirsk, 630090, Russian Federation; Research Center for Earth Operative Monitoring (NTS OMZ), 51-25, Dekabristov str., Moscow, 127490, Russian Federation; Tyumen State University, 6, Volodarskogo str., Tyumen, 625003, Russian Federation; Institute of Archaeology and Ethnography, SB RAS, 17, Acad. Lavrentieva ave., Novosibirsk, 630090, Russian Federation
推荐引用方式 GB/T 7714	Zykina V.S.,Zykin V.S.,Volvach A.O.,et al. Upper quaternary deposits of the nadym ob area: Stratigraphy, cryogenic formations, and deposition environments[J],2017,21(6).
APA	Zykina V.S.,Zykin V.S.,Volvach A.O.,Ovchinnikov I.Yu.,Sizov O.S.,&Soromotin A.V..(2017).Upper quaternary deposits of the nadym ob area: Stratigraphy, cryogenic formations, and deposition environments.Earth's Cryosphere,21(6).
MLA	Zykina V.S.,et al."Upper quaternary deposits of the nadym ob area: Stratigraphy, cryogenic formations, and deposition environments".Earth's Cryosphere 21.6(2017).