Results 21 to 30 of about 23,695 (309)

OXYGEN STABLE ISOTOPE VARIATION IN LATE HOLOCENE ICE WEDGES IN YAMAL PENINSULA AND SVALBARD

open access: yesGeography, Environment, Sustainability, 2015
The stable oxygen isotope composition of Late Holocene syngenetic ice wedges from the Erkutayakha River valley in the Yamal Peninsula and from the Adventdalen valley in Svalbard was studied. It was demonstrated that the studied ice wedges located 2000 km
Yurij K. Vasil'chuk   +5 more
doaj   +1 more source

Ice wedges as archives of winter palaeoclimate: a review [PDF]

open access: yes, 2018
Ice wedges are a characteristic feature of northern permafrost landscapes and grow mainly by snowmelt that refreezes in thermal contraction cracks that open in winter.
Andreev   +81 more
core   +2 more sources

Winter air temperature in Holocene reconstructed from the ice wedges stable water isotopes near Anadyr town

open access: yesЛëд и снег, 2019
The object of research is syncryogenic Holocene strata on the coast of the Onemen Bay, 2 km from the town of Anadyr. In July 2017, the outcrop of the first marine terrace uncovered by strong storms was examined.
N. A. Budantseva, Yu. A. Vasil'chuk
doaj   +1 more source

Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait) [PDF]

open access: yesClimate of the Past, 2017
To reconstruct palaeoclimate and palaeoenvironmental conditions in the northeast Siberian Arctic, we studied late Quaternary permafrost at the Oyogos Yar coast (Dmitry Laptev Strait).
T. Opel   +6 more
doaj   +1 more source

Eastern Beringia and beyond: Late Wisconsinan and Holocene landscape dynamics along the Yukon Coastal Plain, Canada [PDF]

open access: yes, 2012
Terrestrial permafrost archives along the Yukon Coastal Plain (northwest Canada) have recorded landscape development and environmental change since the Late Wisconsinan at the interface of unglaciated Beringia (i.e.
Fritz, Michael   +6 more
core   +1 more source

Flow and retreat of the Late Quaternary Pine Island-Thwaites palaeo-ice stream, West Antarctica [PDF]

open access: yes, 2010
Multibeam swath bathymetry and sub-bottom profiler data are used to establish constraints on the flow and retreat history of a major palaeo-ice stream that carried the combined discharge from the parts of the West Antarctic Ice Sheet now occupied by the ...
Alastair G. C. Graham   +71 more
core   +1 more source

Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges [PDF]

open access: yesThe Cryosphere, 2020
Methane (CH4) and nitrous oxide (N2O) compositions in ground ice may provide information on their production mechanisms in permafrost. However, existing gas extraction methods have not been well tested.
J.-W. Yang   +8 more
doaj   +1 more source

Thermomechanical modelling of the Scandinavian ice sheet: implications for ice-stream formation [PDF]

open access: yes, 1999
This work attempts to explain the fan-like landform assemblages observed in satellite images of the area covered by the former Scandinavian ice sheet (SIS). These assemblages have been interpreted as evidence of large ice streams within the SIS.
Baldwin, DJ, Payne, AJ
core   +2 more sources

Zur Struktur und Entstehung von Eiskeil–Grossformen in Lieth/Elmshorn (Schleswig-Holstein) [PDF]

open access: yesEiszeitalter und Gegenwart, 2007
The deposits near the surface of the Permian and Quarternary in the western part of the “Lieth lime quarry” have been intensively periglacially modified.
A. Grube
doaj   +1 more source

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