Results 211 to 220 of about 2,157 (262)
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2015
The chapter looks mainly at massive rock slope failures that generate high-speed, long-runout rock avalanches onto glaciers in high mountains, from subpolar through tropical latitudes. Drastic modifications of mountain landscapes and destructive impacts occur, and initiate other, longer-term hazards.
Deline, Philip +3 more
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The chapter looks mainly at massive rock slope failures that generate high-speed, long-runout rock avalanches onto glaciers in high mountains, from subpolar through tropical latitudes. Drastic modifications of mountain landscapes and destructive impacts occur, and initiate other, longer-term hazards.
Deline, Philip +3 more
openaire +1 more source
Permafrost creep and rock glacier dynamics
Permafrost and Periglacial Processes, 2006This review paper examines thermal conditions (active layer and permafrost), internal composition (rock and ice components), kinematics and rheology of creeping perennially frozen slopes in cold mountain areas. The aim is to assemble current information about creep in permafrost and rock glaciers from diverse published sources into a single paper that ...
Haeberli, Wilfried +10 more
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Rock‐glacier dams in High Asia
Earth Surface Processes and Landforms, 2018AbstractRock glaciers in semiarid mountains contain large amounts of ice and might be important water stores aside from glaciers, lakes, and rivers. Yet whether and how rock glaciers interact with river channels in mountain valleys remains largely unresolved.
Jan H. Blöthe +3 more
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Glaciation of alpine valleys: The glacier – debris-covered glacier – rock glacier continuum
Geomorphology, 2018Abstract Alpine ice varies from pure ice glaciers to partially debris-covered glaciers to rock glaciers, as defined by the degree of debris cover. In many low- to mid-latitude mountain ranges, the few bare ice glaciers that do exist in the present climate are small and are found where snow is focused by avalanches and where direct exposure to ...
Robert S. Anderson +4 more
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ROCK GLACIERS, SOUTHWEST YUKON
Canadian Geographies / Géographies canadiennes, 1988SummaryTwo distinct types of rock glaciers occur in southwest Yukon. One results directly from glaciation, with the production of abundant debris over glacier ice. The other forms during and after deglaciation, when instabilities develop in deposits and when ice included in these deposits responds to climatic change.
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Engineering geomorphology of rock glaciers
Geomorphology, 1999A partnership between geomorphology and engineering is facilitating human development in this harsh environment. Rock glaciers provide locations for urban water sources, construction borrow sources, drill sites, shaft and tunnel portals, ski tower supports, and dam abutments. Rock glaciers, as dynamic landforms, necessitate proper identification in the
K.C. Burger +2 more
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Genetic variability of rock glaciers
Geografiska Annaler: Series A, Physical Geography, 1998Rock glaciers, common in many alpine and polar regions, have poorly understood internal structure, dynamics, and origins.
Douglas H. Clark +3 more
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Permafrost and Periglacial Processes, 1999
In the Pyrenees 13 active rock glaciers have been detected, five on the northern side and eight on the southern. The active rock glaciers are located in the deglaciated high mountain, on the most massive and highest massifs. The active rock glaciers are located in the central Pyrenees, between 0°15′W and 0°50′E, under summits always higher than 2950 ...
E. Serrano +2 more
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In the Pyrenees 13 active rock glaciers have been detected, five on the northern side and eight on the southern. The active rock glaciers are located in the deglaciated high mountain, on the most massive and highest massifs. The active rock glaciers are located in the central Pyrenees, between 0°15′W and 0°50′E, under summits always higher than 2950 ...
E. Serrano +2 more
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Advance mechanisms of rock glaciers
Permafrost and Periglacial Processes, 2005Rock glacier advance is believed to be the result of the advection of frozen debris to and over the front, (partial) melt-out of ice, and incorporation and subsequent overriding of the mass at the base of the rock glacier. In this contribution, an approach to measure mass balance and transport within rock glacier fronts is presented.
A. Kääb, T. Reichmuth
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Rock Glaciers in Northern Spitsbergen
The Journal of Geology, 1980Talus cones in Spitsbergen are commonly modified in their lower part into lobate rock glaciers. Meteoric and melt waters apparently refreeze as interstitial ice in the lower portion of the talus cones during summer months when air temperatures fluctuate near 0°C.
Keene Swett +2 more
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