- hydrous ferric oxides
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гидроокислы железа
English-Russian dictionary of geology. 2011.
hydrous ferric oxides
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Hydrous iron oxides — Hydrous iron oxides, also called hydrous ferric oxides, are a class of minerals that form from the weathering of minerals that contain iron (Fe) and hydroxides (OH ), but not water. They are poorly crystalline, highly porous and have large… … Wikipedia
Paleopedological record — The paleopedological record is, essentially, the fossil record of soils. The paleopedological record consists chiefly of paleosols buried by flood sediments, or preserved at geological unconformities, especially plateau escarpments or sides of… … Wikipedia
Wurt Pit and Devil's Punchbowl — Infobox SSSI name=Wurt Pit and Devil s Punchbowl aos=Somerset interest=Geological gridref=gbmappingsmall|ST543537 area=0.2 hectare (0.5 acre) notifydate=1987 http://www.natureonthemap.org.uk/map.aspx? ] Wurt Pit and Devil s Punchbowl… … Wikipedia
limonite — A general “field” term for various brown to yellowish brown, amorphous to cryptocrystalline hydrous ferric oxides that are an undetermined mixture of goethite, hematite, and lepidocrocite formed by weathering and iron oxidation from iron… … Glossary of landform and geologic terms
limonite — [ lʌɪmənʌɪt] noun a form of iron ore consisting of a brownish mixture of hydrous ferric oxides. Origin C19: from Ger. Limonit, prob. from Gk leimōn meadow … English new terms dictionary
limonite — limonitic /luy meuh nit ik/, adj. /luy meuh nuyt /, n. Mineral. an amorphous hydrated ferric oxide, varying in color from dark brown to yellow, used as an ore of iron. [1815 25; < Gk leimón meadow + ITE1] * * * One of the major iron minerals, a… … Universalium
clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… … Universalium
silica mineral — Any of the forms of silicon dioxide (SiO2), including quartz, tridymite, cristobalite, coesite, stishovite, melanophlogite, lechatelierite, and chalcedony. Various kinds of silica minerals have been produced synthetically. * * * Introduction… … Universalium
duricrust — /door i krust , dyoor /, n. a hard crust that forms on or in soil in semiarid climates owing to cementation of soil particles. Cf. caliche, hardpan (defs. 1, 2). [ < L dur(us) hard + I + CRUST] * * * ▪ geology Introduction surface or near… … Universalium
pottery — /pot euh ree/, n., pl. potteries. 1. ceramic ware, esp. earthenware and stoneware. 2. the art or business of a potter; ceramics. 3. a place where earthen pots or vessels are made. [1475 85; POTTER1 + Y3] * * * I One of the oldest and most… … Universalium
amphibole — /am feuh bohl /, n. Mineral. any of a complex group of hydrous silicate minerals, containing chiefly calcium, magnesium, sodium, iron, and aluminum, and including hornblende, tremolite, asbestos, etc., occurring as important constituents of many… … Universalium
