mechanical weathering

См. также в других словарях:

• mechanical weathering —   see physical weathering …   Geography glossary

• Weathering — This article is about weathering of rocks and minerals. For weathering of polymers, see Polymer degradation and Weather testing of polymers. Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through… …   Wikipedia

• weathering — /wedh euhr ing/, n. 1. Archit. wash (def. 48). 2. material used as a weather strip. 3. Geol. the various mechanical and chemical processes that cause exposed rock to decompose. [1655 65; WEATHER + ING1] * * * Physical disintegration and chemical… …   Universalium

• Weathering steel — Corten redirects here. For the commune in Moldova, see Corten, Taraclia. Iron alloy phases Ferrite (α iron, δ iron) …   Wikipedia

• weathering — noun Mechanical or chemical breaking down of rocks in situ by weather or other causes …   Wiktionary

• Frost weathering — A rock in Abisko fractured (along existing joints) possibly by mechanical frost weathering or thermal stress Frost weathering is a collective name for several mechanical weathering processes induced by stresses created by the freezing of water… …   Wikipedia

• physical weathering — (also mechanical weathering) a process of weathering which results in smaller pieces of the same rock material being produced …   Geography glossary

• freeze-thaw weathering —   a process of physical or mechanical weathering. In areas which experience a diurnal temperature range above and below 0蚓 then water is frozen and thawed on a daily basis. As it expands when freezing, it can widen cracks in which it is held… …   Geography glossary

• Spall — are flakes of a material that are broken off a larger solid body and can be produced by a variety of mechanisms, including as a result of projectile impact, corrosion, weathering, cavitation, or excessive rolling pressure (as in a ball bearing).… …   Wikipedia

• river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …   Universalium

• sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium