Results 51 to 60 of about 320 (187)
The glacial origins of relict ‘pingos’, Wales, UK
Ramparted depressions (doughnut-shaped debris-cored ridges with peat- and/or sediment-filled central basins) are commonly perceived to represent the relict collapsed forms of permafrost ground-ice mounds (i.e. pingos or lithalsas).
Neil Ross, Peter Brabham, Charles Harris
doaj +1 more source
Morphology of Antarctic Polygons and Implications for Polygon Evolution and Subsurface Ice Dynamics
ABSTRACT Polygonal terrain results from thermal contraction, is commonly found in periglacial environments, and serves as a valuable proxy for interpreting subsurface ice distribution and climate history on Earth and Mars. In this study, we investigate the morphology of polygons in Beacon Valley, Antarctica, to assess the relationship between polygon ...
Rachael H. Hoover +4 more
wiley +1 more source
Relative weathering indices and three‐dimensional fabric analyses demonstrate allochthonous emplacement of the Hickory Run Boulder Field via periglacial mass movement. Spatially coherent trends confirm a time‐transgressive surface formed under Pleistocene permafrost conditions, with tributary‐like integration of clasts from a secondary boulder field ...
Raven J. Mitchell, Frederick E. Nelson
wiley +1 more source
Headwater drainage evolution in the Ebro foreland basin system from N Spain, including the Zadorra River drainage system and its relationships with the Arakil River. Abstract Foreland basins are elongate depressions that develop around the flanks of collisional mountain ranges.
Iván Martín‐Martín +5 more
wiley +1 more source
Rapid mass movements triggered by an atmospheric river in Disko Island, West Greenland
In early July 2023, a series of rapid mass movements was triggered by extreme precipitation carried by an atmospheric river in Disko Island, West Greenland. During 18 h total precipitation reached up to 115 mm, causing more than 150 slushflows in different areas of the island and substantial damage to some infrastructure close to the Qeqertarsuaq ...
Renato R. Colucci +5 more
wiley +1 more source
Characteristics and Climatic Indications of Ice-Related Landforms at Low Latitudes (0°–±30°) on Mars
The deposition and evolution of ice-rich materials on Martian surfaces offer valuable insights into climatic evolution and the potential driving forces behind global climate change.
Yan Zhou +3 more
doaj +1 more source
Desert pavements: A hidden key to Earth surface processes
Desert pavements are a global phenomenon in arid environments, representing one of the most extensive geomorphological and geoecological features on Earth. To a large extent, they determine the interplay of key processes governing current and past landscape dynamics.
Markus Fuchs +5 more
wiley +1 more source
We conducted landscape evolution model simulations with climate‐sensitive hillslope soil transport, soil production and mineral dissolution/alteration while tracking a 10Be tracer. We incorporated sub‐models for frost heaving and frost cracking. In our reference simulation where temperature controlled processes and a lake provided a new base level ...
Miles M. Reed +4 more
wiley +1 more source
Low-altitude palaeoglaciation in Atlantic mountain regions provides important insights into past climatic conditions and moisture dynamics during the Last Glacial Cycle. This study presents the first quantitative reconstruction of palaeoglaciers in Serra
Edgar Figueira +2 more
doaj +1 more source
Glacial geomorphology of the Gaick, Central Grampians, Scotland
The Gaick is an enigmatic glaciated landscape in the Central Grampians, Scotland, dominated by an expansive dissected plateau. Previous studies have postulated widely differing interpretations of the glacial landforms and current understanding of the ...
Benjamin M. P. Chandler +3 more
doaj +1 more source

