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"scree" Deutsch ÜbersetzungIn diesem Scree - Plot kann auch das Kaiser - Kriterium gezeigt werden. Dieses Kriterium besagt, daß ein Eigenwert größer als Eins über die Anzahl der zu. scree Bedeutung, Definition scree: 1. large, loose broken stones on the side of a mountain, or an area covered with stones like this. scree nnoun: Refers to person, place, thing, quality, etc. (loose rocks on a cliff), Geröll Nn.
Scree Navigation menu VideoScree-
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Listen to the words and spell through all three l Login or Register. Save Word. Definition of scree. Examples of scree in a Sentence Recent Examples on the Web All around us humans and horses picked their way across scree fields and catwalks, up to the high country.
First Known Use of scree circa , in the meaning defined above. Keep scrolling for more. Learn More about scree. Share scree Post the Definition of scree to Facebook Share the Definition of scree on Twitter.
Time Traveler for scree The first known use of scree was circa See more words from the same year.
Eventually, a rock slope may be completely covered by its own scree, so that production of new material ceases. The slope is then said to be "mantled" with debris.
However, since these deposits are still unconsolidated, there is still a possibility of the deposit slopes themselves failing.
If the talus deposit pile shifts and the particles exceed the angle of repose, the scree itself may slide and fail.
Phenomena such as acid rain may also contribute to the chemical degradation of rocks and produce more loose sediments.
Biotic processes often intersect with both physical and chemical weathering regimes, as the organisms that interact with rocks can mechanically or chemically alter them.
Lichen frequently grow on the surface of, or within, rocks. Particularly during the initial colonization process, the lichen often inserts its hyphae into small fractures or mineral cleavage planes that exist in the host rock.
This increases the potential of fragmentation, possibly leading to rockfalls. During the growth of the lichen thallus , small fragments of the host rock can be incorporated into the biological structure and weaken the rock.
Freeze-thaw action of the entire lichen body due to microclimatic changes in moisture content can alternately cause thermal contraction and expansion,  which also stresses the host rock.
Lichen also produce a number of organic acids as metabolic byproducts. Scree often collects at the base of glaciers, concealing them from their environment.
For example, Lech dl Dragon , in the Sella group of the Dolomites , is derived from the melting waters of a glacier and is hidden under a thick layer of scree.
Debris cover on a glacier affects the energy balance and, therefore, the melting process. The amount of energy reaching the surface of the ice below the debris can be estimated via the one-dimensional, homogeneous material assumption of Fourier's Law : .
Debris with a low thermal conductivity value, or a high thermal resistivity , will not efficiently transfer energy through to the glacier, meaning the amount of heat energy reaching the ice surface is substantially lessened.
This can act to insulate the glacier from incoming radiation. The albedo , or the ability of a material to reflect incoming radiation energy, is also an important quality to consider.
Generally, the debris will have a lower albedo than the glacier ice it covers, and will thus reflect less incoming solar radiation.
Instead, the debris will absorb radiation energy and transfer it through the cover layer to the debris-ice interface. If the ice is covered by a relatively thin layer of debris less than around 2 centimeters thick , the albedo effect is most important.
Instead, the glacier ice will absorb incoming solar radiation and transfer it to the upper surface of the ice.
Then, the glacier ice begins to absorb the energy and uses it in the process of melting. However, once the debris cover reaches 2 or more centimeters in thickness, the albedo effect begins to dissipate.
A scree has many small interstitial voids, while an ice cave has a few large hollows. Due to cold air seepage and air circulation, the bottom of scree slopes have a thermal regime similar to ice caves.
Because subsurface ice is separated from the surface by thin, permeable sheets of sediment, screes experience cold air seepage from the bottom of the slope where sediment is thinnest.
During the last glacial period , a narrow ice-free corridor formed in the Scandinavian ice sheet ,  introducing taiga species to the terrain.
These boreal plants and animals still live in modern alpine and subarctic tundra , as well as high-altitude coniferous forests and mires.
Scree microclimates maintained by circulating freezing air create microhabitats that support taiga plants and animals that could not otherwise survive regional conditions.
This freezing scree slope represents a classic example of a palaeo refugium that significantly contributes to [the] protection and maintenance of regional landscape biodiversity.
Ice Mountain , a massive scree in West Virginia , supports distinctly different distributions of plant and animal species than northern latitudes.
Scree running is the activity of running down a scree slope; which can be very quick, as the scree moves with the runner.
Some scree slopes are no longer possible to run, because the stones have been moved towards the bottom. Steam page. Enter your email to stay tuned for news about Screeps Arena development: E-mail.