Results 11 to 20 of about 23,695 (309)

Last glacial ice sheet dynamics offshore NE Greenland – a case study from Store Koldewey Trough [PDF]

The Cryosphere, 2020
The presence of a grounded Greenland Ice Sheet on the northeastern part of the Greenland continental shelf during the Last Glacial Maximum is supported by new swath bathymetry and high-resolution seismic data, supplemented with multi-proxy analyses of ...
I. L. Olsen, T. A. Rydningen, M. Forwick, J. S. Laberg, K. Husum   +4 more
doaj   +1 more source

Reconstruction of average January temperatures during the early Holocene in the North-East of the Bolshezemelskaya tundra

Лëд и снег, 2020
The aim of the study was to establish the period of accumulation of peatland with ice wedges near Vorkuta town based on series of calibrated radiocarbon dates, to anchor in time the isotope-oxygen curve of syngenetic ice wedge from peatland and to ...
N. A. Budantseva, Yu. K. Vasil'chuk
doaj   +1 more source

Reconstruction of the mean January air temperature in the Early Holocene on the eastern coast of Chukotka

Лëд и снег, 2023
The investigation is concerned with the Early Holocene syngenetic massive wedge ice exposed in the outcrop of a polygonal peatland in the upper part of the third marine terrace near Lorino settlement on the eastern coast of Chukotka.
N. A. Budantseva, A. A. Maslakov, Yu. K. Vasil’chuk, A. C. Vasil’chuk, L. P. Kuzyakin   +4 more
doaj   +1 more source

Isotopic composition of oxygen and hydrogen of ice wedges in Central Yamal

Лëд и снег, 2021
New data on the distribution of the isotopes δ18О and δD of ice wedges in Central Yamal are presented. In the summer of 2019, the massive wedge ice was studied in the thermal circus of the third marine terrace.
Ju. N. Chizhova, E. M. Babkin, A. V. Khomutov   +2 more
doaj   +1 more source

First direct dating of Late Pleistocene ice-wedges by AMS [PDF]

, 2000
We present the first direct dating by C-14-accelerator mass spectrometry of three Late Pleistocene syngenetic ice-wedges from the Seyaha cross-section.
Jungner, H, Sonninen, E, van der Plicht, J, Vasil'chuk, AC, Vasil'chuk, Alla C., Vasil'chuk, YK, Vasil'chuk, Yurij K.   +6 more
core   +2 more sources

Isotopic composition on ground ice in Western Yamal (Marre-Sale)

Лëд и снег, 2015
The profile of Quaternary sediments near Marre-Salle polar station, Western Yamal Peninsula, has large bodies of tabular ground ice. This profile is considered strata-typical and critical in understanding of paleogeographic conditions of the Arctic in ...
I. D. Streletskaya, A. A. Vasiliev, G. E. Oblogov, A. G. Matyukhin   +3 more
doaj   +1 more source

Microtopographic control on the ground thermal regime in ice wedge polygons [PDF]

The Cryosphere, 2018
The goal of this research is to constrain the influence of ice wedge polygon microtopography on near-surface ground temperatures. Ice wedge polygon microtopography is prone to rapid deformation in a changing climate, and cracking in the ice wedge ...
C. J. Abolt, C. J. Abolt, M. H. Young, A. L. Atchley, D. R. Harp   +4 more
doaj   +1 more source

A Quantitative Graph-Based Approach to Monitoring Ice-Wedge Trough Dynamics in Polygonal Permafrost Landscapes

Remote Sensing, 2021
In response to increasing Arctic temperatures, ice-rich permafrost landscapes are undergoing rapid changes. In permafrost lowlands, polygonal ice wedges are especially prone to degradation.
Tabea Rettelbach, Moritz Langer, Ingmar Nitze, Benjamin Jones, Veit Helm, Johann-Christoph Freytag, Guido Grosse   +6 more
doaj   +1 more source

Syngenetic sand veins and anti-syngenetic sand wedges, Tuktoyaktuk Coastlands, western Arctic Canada [PDF]

, 2007
Sand-sheet deposits of full-glacial age in the Tuktoyaktuk Coastlands, western Arctic Canada, contain syngenetic sand veins 1-21 cm wide and sometimes exceeding 9 m in height.
Bateman, Bateman, Berg, Brookfield, Burn, Carter, Carter, Dallimore, Dinter, Dostovalov, Dylik, Environment Canada, French, French, Ghysels, Gozdzik, Harry, Hopkins, Julian B. Murton, Kasper, Kasse, Kocurek, Kolstrup, Kolstrup, Kolstrup, Kolstrup, Koster, Koster, Koster, Lea, Lea, Lea, Lewkowicz, MacDonald, Mackay, Mackay, Mackay, Mackay, Mackay, Mackay, Mackay, Mackay, Mark D. Bateman, Melnikov, Murton, Murton, Murton, Péwé, Rampton, Ritchie, Sher, Sletten, Taylor, Van der Hammen, Vandenberghe, Vasil'chuk, Worsley, Yershov   +57 more
core   +1 more source

Ice-wedge stable isotopes at the Dmitry Laptev Strait (Northeast Siberian Arctic) – indications for Late Quaternary stratigraphy and paleoclimate [PDF]

, 2016
Ice wedges are the most abundant type of ground ice in the ice-rich permafrost deposits of the Northeast Siberian Arctic. They are formed by the periodic repetition of frost cracking and subsequent crack filling and refreezing in spring, mostly by melt ...
Dereviagin, Alexander Yu, Fuchs, Margret, Meyer, Hanno, Opel, Thomas, Schirrmeister, Lutz, Wetterich, Sebastian   +5 more
core   +1 more source