- bedded cherts
- Силикатное производство: полосчатые кремни, полосчатые кремнистые сланцы
Универсальный англо-русский словарь. Академик.ру. 2011.
bedded cherts
Смотреть что такое "bedded cherts" в других словарях:
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
siliceous rock — Any of a group of sedimentary rocks that consist largely or almost entirely of silicon dioxide (SiO2), either as quartz or as chert, the most common siliceous rock. It occurs in beds and in nodules. Bedded cherts may be an original organic or… … Universalium
Chert — For the Spanish municipality, see Xert. Chert Chert ( / … Wikipedia
sedimentation — /sed euh meuhn tay sheuhn/, n. the deposition or accumulation of sediment. [1870 75; SEDIMENT + ATION] * * * In geology, the process of deposition of a solid material from a state of suspension or solution in a fluid (usually air or water).… … Universalium
chert and flint — Very fine grained quartz, a silica mineral with minor impurities. Flint is gray to black and nearly opaque (translucent brown in thin splinters). Opaque, dull, whitish to pale brown or gray specimens are called simply chert. Chert and flint… … Universalium
Diatom — For a molecule of two atoms, see Diatomic molecule. Diatoms Marine diatoms Scientific classification Domain … Wikipedia
Lake Magadi — Infobox lake lake name = Lake Magadi image lake = LakeMagadi.png caption lake = image bathymetry = caption bathymetry = location = Rift Valley coords = coord|1|52|S|36|16|E|region:KE 700 type:waterbody|display=inline,title type = inflow = outflow … Wikipedia
Pilbara craton — The Pilbara craton (the Pilbara province in northwest Western Australia), along with the Kaapvaal craton (the Kaapvaal province of South Africa) are the only remaining areas of pristine Archaean 3.6 2.7 Ga crust on Earth. Similarities of their… … Wikipedia
Rock of Gibraltar — For the racehorse of the same name, see Rock of Gibraltar (horse). Rock of Gibraltar Western face of The Rock of Gibraltar, 2006 … Wikipedia
Jurassic Period — Interval of geologic time, 206–144 million years ago, that is one of the three major divisions of the Mesozoic Era, preceded by the Triassic Period and followed by the Cretaceous. During the Jurassic, Pangea began to break up into the present day … Universalium
