- angular cross-bedding
- угловатая косая слоистость
English-Russian mining dictionary. В.П. Манышев.
angular cross-bedding
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Cross-bedding — Crossbedding of sandstone near Mt. Carmel road, Zion Canyon, indicating wind action and sand dune formation prior to formation of rock (NPS photo by George A. Grant, 1929) … Wikipedia
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
Sedimentary rock — Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah, USA Sedimentary rock are types of rock that are formed by the deposition of material at the Earth s surface and within… … Wikipedia
Way up structure — A Way up structure is a characteristic relationship observed in a sedimentary or volcanic rock, or sequence of rocks, that makes it possible to determine whether they are the right way up (i.e in the attitude in which they were originally… … Wikipedia
Meander — For other uses, see Meander (disambiguation). A hypothetical stream bed following a tilted valley. The maximum gradient is along the down valley axis represented by a hypothetical straight channel. Meanders develop, which lengthen the course of… … Wikipedia
siltstone — /silt stohn /, n. Petrog. a very fine grained sandstone, mainly consolidated silt. [1925 30; SILT + STONE] * * * Hardened sedimentary rock that is composed primarily of angular silt sized particles (see silt) and that is not laminated or easily… … Universalium
Rock microstructure — includes the texture of a rock and the small scale rock structures. The words texture and microstructure are interchangeable, with the latter preferred in modern geological literature. However, texture is still acceptable because it is a useful… … Wikipedia
wacke — /wak euh/, n. a poorly sorted sandstone containing fragments of rock and minerals in a clayey matrix. Cf. graywacke. [1795 1805; < G: a kind of stone] * * * ▪ sandstone also called dirty sandstone sedimentary rock composed of sand sized… … Universalium
Uluru — For the band, see Ayers Rock (band). Coordinates: 25°20′42″S 131°02′10″E … Wikipedia
Glossary of geology terms — Here is a glossary of Geological terms.A*Abyssal plain Flat or very gently sloping areas of the deep ocean basin floor. *Absolute dating the process of determining a specific date (in years or some other unit of time) for an archaeological,… … Wikipedia
Geology of the Grand Canyon area — The geology of the Grand Canyon area exposes one of the most complete sequences of rock anywhere, representing a period of nearly 2 billion years of the Earth s history in that part of North America. The major sedimentary rock layers exposed in… … Wikipedia
