气候变化领域集成服务门户(CCPortal): Seismogenic landslide structure and evolution in the permafrost area of the Altai Mountains (Gorny Altai)

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DOI	10.21782/KZ1560-7496-2017-1(26-35)
	Seismogenic landslide structure and evolution in the permafrost area of the Altai Mountains (Gorny Altai)
	Dostovalova M.S.; Olenchenko V.V.
发表日期	2017
ISSN	15607496
卷号	21 期号:1
英文摘要	The results of multiyear observations and electrical resistivity tomography studies of one of the seismogenic landslides on the territory of Gorny Altai have been presented and discussed. The investigation has revealed that the landslide had formed in 2008 during the period of enhanced seismic activity of the Altai-Sayan region. A cirque-like landslide of complicated morphology had formed due to the sliding of the unconsolidated sediments along the permafrost table. Based on geophysical data, the expected permafrost thickness has varied from 22-30 m to 10 m in fault zones. During the 2008-2015 period of observations, the maximum displacement of the landslide scarp was 62 m, with the annual growth of its area averaging 278 m2 (in the range from 45 to 651 m2/year). The landslide evolution was characterized by short-term periods of activation against the backdrop of generally declining landslide activity. Such periods has occurred due to the short-term increase of seismic activity in the region and the rise of the mean summer air temperatures by 2.1 °C versus the multiyear norm. The activation of landsliding processes has assumed to occur under the further growth of the mean annual and mean summer temperatures in the Chuya seismogenic zone of Gorny Altai.
英文关键词	Electrical resistivity tomography; Mountain permafrost; Seismogenic landslide
学科领域	displacement; electrical resistivity; landslide; mountain region; permafrost; seismicity; tomography; Altai Mountains
语种	英语
scopus关键词	displacement; electrical resistivity; landslide; mountain region; permafrost; seismicity; tomography; Altai 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/119513
作者单位	Joint Stock Company Geological Company Altay-Geo, 52, Zavodskaya str., Mayma, Altai Republic, 649100, Russian Federation; Trofi Muk Institute of Petroleum Geology and Geophysics, SB RAS, 3, Koptuga ave., Novosibirsk, 630090, Russian Federation
推荐引用方式 GB/T 7714	Dostovalova M.S.,Olenchenko V.V.. Seismogenic landslide structure and evolution in the permafrost area of the Altai Mountains (Gorny Altai)[J],2017,21(1).
APA	Dostovalova M.S.,&Olenchenko V.V..(2017).Seismogenic landslide structure and evolution in the permafrost area of the Altai Mountains (Gorny Altai).Earth's Cryosphere,21(1).
MLA	Dostovalova M.S.,et al."Seismogenic landslide structure and evolution in the permafrost area of the Altai Mountains (Gorny Altai)".Earth's Cryosphere 21.1(2017).