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permafrost

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Journal Article
Published: 19 June 2020
Quarterly Journal of Engineering Geology and Hydrogeology (2020) qjegh2020-021.
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Journal Article
Published: 25 March 2020
Quarterly Journal of Engineering Geology and Hydrogeology (2020) qjegh2019-139.
... and thawing. Recurrent freeze–thaw cycling is a powerful weathering process that significantly changes the soil structure, and is therefore a primary contributor to deterioration of the soil's engineering properties. Owing to the combination of global warming and permafrost degradation that has occurred since...
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Journal Article
Journal: Geophysics
Published: 13 September 2019
Geophysics (2019) 84 (5): E337–E355.
...) Valuable mineral resources can be hosted in permafrost, and, currently, IP is still the main method to locate ore bodies. Therefore, a better understanding of how spectral IP can be interpreted in permafrost is valuable to the mining industry. (3) By looking at more extreme conditions than we did so far...
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Journal Article
Published: 28 June 2019
Journal of Environmental and Engineering Geophysics (2019) 24 (2): 333–340.
... include steep hillslopes, permafrost, karst, and landfills, but even the design of foundations built on firm bedrock can be complicated by uncertainty of the thickness of the bedrock layer overlying a mechanically weaker layer. If the bedrock is intact and sufficiently thick, an engineer might regard one...
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Journal Article
Journal: Geophysics
Published: 27 May 2019
Geophysics (2019) 84 (4): B247–B258.
...Bo Yang; Xiangyun Hu; Wule Lin; Shuang Liu; Hui Fang ABSTRACT In China, gas hydrates in onshore permafrost areas have so far only been found in the Juhugeng Mine of the Qilian Mountains. However, their subsurface distribution remains unclear. Electrical resistivity logs have revealed that zones...
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Journal Article
Published: 10 April 2019
Journal of Environmental and Engineering Geophysics (2019) 24 (1): 1–17.
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Journal Article
Journal: Geophysics
Published: 01 April 2019
Geophysics (2019) 84 (3): EN33–EN45.
...Andrew D. Parsekian; Andrea L. Creighton; Benjamin M. Jones; Christopher D. Arp ABSTRACT Lakes in Arctic systems contribute to hydrologic storage, biogeochemical cycling, and permafrost thaw. Here, we have used surface nuclear magnetic resonance (NMR) measurements on lakes of Alaska’s North Slope...
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Journal Article
Journal: Geology
Published: 21 March 2019
Geology (2019) 47 (5): 440–444.
... and the low relief, we applied a landscape diffusion model to the Arnott moraine and found that during permafrost conditions, intense erosion can act to efficiently and quickly smooth the moraine surface. This study connects the LIS as a potential source for sea-level lowering during MIS 3 while...
FIGURES
Published: 01 January 2019
DOI: 10.1144/SP467.7
EISBN: 9781786203625
... ( Marchant et al. 2002 ). Sublimation, intrinsically associated with iterative water vapour adsorption/diffusion cycles, also could have contributed to the formation of very thin sub-metre horizons of ancient ice-cemented permafrost in the region ( Lacelle et al. 2013 ). However, the sublimation...
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Journal Article
Published: 24 August 2018
Environmental and Engineering Geoscience (2018) 24 (3): 281–291.
..., and mitigation strategies: 1. Water withdrawal 2. Hydrocarbon withdrawal 3. Mines 4. Karst 5. Seismic liquefaction 6. Seismic settlement 7. Oxidation of peat 8. Dissolution 9. Piping 10. Hydrocompaction 11. Permafrost 12. Frost action 13. Clay consolidation 14. Expansive...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP461.8
EISBN: 9781786203427
...; and (iii) the spatial patterns of liquid groundwater v. permafrost in the sedimentary rocks, within the larger-scale hydrological and thermal setting of the upper and lower crust. Of these (i) can be obtained by standard airborne surveying (e.g. radar) and from satellite data, while (ii) and (iii...
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Journal Article
Published: 19 October 2017
Quarterly Journal of Engineering Geology and Hydrogeology (2017) 50 (4): 369–378.
..., together with the general influence of permafrost on the ground profiles, are discussed in detail with relevant UK examples highlighting classic sites at which to observe these phenomena. Fig. 5. Main types of downslope shear in clayey periglacial solifluction over a clayey sub-base (Type IIa...
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Journal Article
Journal: Geophysics
Published: 29 August 2017
Geophysics (2017) 82 (3): EN33–EN50.
...Shan Dou; Seiji Nakagawa; Douglas Dreger; Jonathan Ajo-Franklin ABSTRACT To better understand the relationship between P-wave velocities and ice content in saturated, unconsolidated saline permafrost, we constructed an effective-medium model based upon ultrasonic P-wave data that were obtained from...
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Journal Article
Published: 01 June 2017
Clays and Clay Minerals (2017) 65 (3): 168–183.
...Elena Kuznetsova Abstract —Layers of volcanic ash and Andosol soils derived from the ash may play an important role in preserving snow and ice as well as in the development of permafrost conditions in (a) the immediate vicinity of volcanoes at high elevations or at high latitudes and (b) land areas...
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Journal Article
Journal: Geophysics
Published: 09 May 2017
Geophysics (2017) 82 (4): V201–V209.
... fluid permafrost Figure 1. Map of the CO 2 Lab site in Adventdalen, Svalbard, Norway (aerial photograph from the Norwegian Polar Institute). The Longyearbyen CO 2 Lab, hosted by the University Centre in Svalbard (UNIS) and a spin-off company, UNIS CO 2...
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Journal Article
Journal: Geology
Published: 01 April 2017
Geology (2017) 45 (4): 371–374.
...Steven V. Kokelj; Trevor C. Lantz; Jon Tunnicliffe; Rebecca Segal; Denis Lacelle Abstract Ice-marginal glaciated landscapes demarcate former boundaries of the continental ice sheets. Throughout circumpolar regions, permafrost has preserved relict ground ice and glacigenic sediments, delaying...
Journal Article
Published: 24 March 2017
Quarterly Journal of Engineering Geology and Hydrogeology (2017) 50 (2): 117–125.
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Journal Article
Journal: Geophysics
Published: 15 March 2017
Geophysics (2017) 82 (3): E121–E127.
... in each layer varies exponentially with depth. This theoretical result contributes to model the magnetometric resistivity method, which had been applied onshore, e.g., for mineral exploration, offshore to investigate the permafrost layer at bottom sea, hydrothermal flux, and natural resources. We have...
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Series: Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2017
DOI: 10.1144/EGSP28.5
EISBN: 9781786203038
... Abstract Periglacial environments are characterized by cold-climate non-glacial conditions and ground freezing. The coldest periglacial environments in Pleistocene Britain were underlain by permafrost (ground that remains at or below 0°C for two years or more), while many...
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Series: Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2017
DOI: 10.1144/EGSP28
EISBN: 9781786203038