rock glacier


Also found in: Wikipedia.

rock glacier

[′räk ‚glā·shər]
(geology)
Boulders and fine material cemented by ice about a meter below the surface. Also known as talus glacier.
References in periodicals archive ?
In August 2015, another two-week mission was held in on rock glacier in the Kaunertal, Austria.
At the base of this glacier is a rock glacier, a river of stones held together by buried ice that slowly flows down the glacial ravine.
For the aims of this paper, we focused our investigations on Ana rock glacier (Retezat Mts.
Papers in this volume examine subjects including the implications that changes in the distribution and thickness of permafrost in continental interiors have for ecosystem and landscape stability; how increased rockfall and mass movement in periglacial Alpine environments has led to rock glacier instability and sediment release to downstream rivers; and the impact of these landscape effects impact on natural hazards and human activities in these sensitive and geologically transient environments.
For decades, researchers assumed that the molasses was created by small pockets of ice that had filled the pores of the surface rocks, lubricating the rocky material and causing it to slowly flow in what geologists call a rock glacier.
Volcanic ash layers in western Canada have proved to be very important chronostratigraphic markers in providing age control for a variety of geomorphic processes, including alluvial fan growth (Ryder, 1971), slope processes (Osborn and Luckman, 1981; Harris and McDermid, 1998), fluvial aggradation and incision (Dawson, 1889; Fuller, 1986), glacier (Rampton, 1970) and rock glacier fluctuations (Dyke, 1990), lake level fluctuations (Clague, 1981), and peatland growth (Capps, 1915; Rigg and Gould, 1957; Tarnocai, 1973; Zoltai and Johnson, 1985; Zoltai, 1988; Ovenden, 1990; Robinson and Moore, 1999, 2000).
We stopped for a stretch at a sign that showed a rock glacier - the brittle bedrock of mountain peaks shattered by the freeze-thaw activity and lubricated by melting waters.
The rock glacier originates in a large meadow about a thousand feet up the mountainside.
Temperatures there have been measured since 1987 in a borehole on the rock glacier Murtel.
Of these, two are particularly significant -- the Pioneer and the Rock Glacier.
Some specific subjects explored include a digital approach to unsurveyable monuments, the integration of classical artistic media in a smart space prototype, automatic transcription of handwritten medieval documents, and a multi-view dense reconstruction for rock glacier modeling.