...Jefferson Bustamante; Gabriel Fabien-Ouellet; Mathieu J. Duchesne; Amr Ibrahim ABSTRACT Monitoring the change in permafrost conditions and distribution is crucial for forecasting global warming. As seismic velocities increase with ice content, marine seismic surveys can map the top of ice-bearing...

...A.A. Galanin; I.V. Klimova; I.I. Khristoforov; Q. Wu; Zh. Ze Abstract —The surface pattern of permafrost area in the Tibetan Plateau, with 15–20 m polygons, resembles the patterned ground of the Arctic periglacial loess plains in northeastern Eurasia and North America. However, unlike the Arctic...

...M.N. Nikitenko; V.N. Glinskikh; I.V. Mikhaylov; A.A. Fedoseev Abstract —The study is aimed at theoretical development and scientific substantiation of a high-resolution transient electromagnetic (TEM) geophysical technique for monitoring the state of permafrost. The electromagnetic monitoring...

... focus is made on the seismic behavior of areas where seismic risk zoning is problematic because of permafrost. The paper presents synthesis of previous and new data on ground responses to large earthquakes in specific territories of the Baikal–Mongolia region with complex cryological conditions...

... as kinematically active failure surfaces or cause the generation of new joints that enhance hydraulic conductivity and rock mass weakening ( Evans and Clague 1994 ; Ballantyne 2002 ; McColl 2012 ). In addition, climate warming and the correlated permafrost degradation promote rock weathering, reduce the rock...

..., in subarctic northwest North America. However, new zircon U-Pb dates for the tephra suggest that the tephra was deposited ca. 207 ka during MIS 7, with wide-ranging implications for chronologies of glaciation, paleoclimate, relict permafrost, and phylogeography. We analyzed ~1900 detrital glass shards from 28...

..., Cheshire Basin, UK . Sedimentology , 49 , 805 – 833 , https://doi.org/10.1046/j.1365-3091.2002.00472.x Murton , J.B. and French , H.M. 1993 . Thermokarst involutions, Summer Island, Pleistocene Mackenzie Delta, Western Canadian Arctic . Permafrost and Periglacial Processes , 4 , 217...

...Xingmin Zhao; Jian Deng; Zhigang Wen; Zhu Rao; Li Yi; Chen Liu; Cheng Lu ABSTRACT Although conditions in the Mohe permafrost of northeastern China, including temperature, pressure, groundwater, gas migration, and host reservoirs, are favorable for gas-hydrate accumulation, no gas hydrates have been...

...Ekaterina V. Garankina; Vasily A. Lobkov; Ilya G. Shorkunov; Vladimir R. Belyaev Abstract Watershed landscapes of the Central Russian Plain, which were subjected to the Late Pleistocene permafrost, bear witness to widespread cryogenic structuring. It is reflected both in semi-regular spots, blocks...

...Yuxia Zhao; Kangqi Liu; Hongyan Liu; Hanhua Xu Abstract Under the action of freeze-thaw erosion, slopes in permafrost regions frequently suffer from geological disasters. The unique properties of soil-rock-mixture slopes further complicate this freeze-thaw stability problem. To study the effects...

... during the late Pleistocene to mid-Holocene. We modeled seven slope stability scenarios for the T440 landslide by varying water table position and seismic load. Our modeling results suggest that thawing permafrost and/or seismic loading were likely possible triggers for the T440 landslide. To our...

...D. D. Eberl Abstract The Martian blueberries, first discovered by NASA’s Opportunity rover, are concretions likely formed in sediments from hydrothermal solutions resulting from bolide impact into groundwater or permafrost. Evidence for this conclusion comes from the shapes of particle size...

... by solving such problems as determining the thickness of loose deposits, tracing buried valleys, obtaining the thickness and sometimes lithological types of loose deposits, and identifying talik zones and permafrost boundaries. The document given in ( Budilin et al., 1992 ) regulates the use of vertical...

... the ambient wavefield of the region and to investigate permafrost dynamics through estimates of seismic velocity variations. We are motivated by a need for early geophysical detection of potentially hazardous changes to permafrost stability. We draw upon several data sources to constrain various aspects...

...Matthias Steiner; Florian M. Wagner; Theresa Maierhofer; Wolfgang Schöner; Adrián Flores Orozco ABSTRACT Quantitative estimation of subsurface water and ice content values is critical for the understanding and modeling of permafrost evolution in alpine regions. Geophysical methods permit...

...Yuan Yao; Yongsong Huang; Jiaju Zhao; Li Wang; Youhua Ran; Weiguo Liu; Hai Cheng Abstract Lakes in the permafrost zone have been proposed to serve as key outlets for methane and carbon dioxide emissions. However, there has been no geological record of the hydrological and biogeochemical responses...