- oncolite
- онколит (аккреционное органоседиментационное образование)
English-Russian dictionary of geology. 2011.
oncolite
Смотреть что такое "oncolite" в других словарях:
Oncolite — Oncolithe Un oncolithe (ou oncolite) (du grec onkos, nodule ou tumeur, et lithos, pierre) est une roche calcaire formée à plus de 50% d oncoïdes. Ils sont généralement arrondis ou aplatis (forme de galets) et peuvent être métalliques (ferrugineux … Wikipédia en Français
Oncolite — Oncolites from the upper Burgsvik beds (Silurian), with shell fragments as nuclei. Large flower is 2 cm in diameter … Wikipedia
Stromatolite — Stromatolites (from Greek στρώμα, strōma , mattress, bed, stratum, and λιθος, lithos , rock) are layered accretionary structures formed in shallow water by the trapping, binding, and cementation of sedimentary grains by biofilms of microorganisms … Wikipedia
Oncoide — Oncoïde Un oncoïde (A. Heim, 1916; du grec onkos, nodule ou tumeur) est un nodule arrondi, le plus souvent calcaire, d’une taille allant du mm au cm, composé d’un noyau et de fines couches laminaires entourant concentriquement le noyau. Le noyau… … Wikipédia en Français
Oncolithe — Bactroptyxis tr … Wikipédia en Français
Oncoïde — Un oncoïde (A. Heim, 1916; du grec onkos, nodule ou tumeur) est un nodule arrondi, le plus souvent calcaire, d’une taille allant du mm au cm, composé d’un noyau et de fines couches laminaires entourant concentriquement le noyau. Le noyau peut… … Wikipédia en Français
Snowball Earth — The Snowball Earth hypothesis as it was originally proposedcite book author = Kirschvink, J.L. year = 1992 chapter = Late Proterozoic low latitude global glaciation: The snowball Earth title = The Proterozoic Biosphere: A Multidisciplinary Study… … Wikipedia
Tufa — Not to be confused with tuff, a porous volcanic rock. This article is about the geological formation. For the historic Chinese name, see Southern Liang. Tufa columns at Mono Lake, California Tufa is a variety of limestone, formed by the… … Wikipedia
Allochems — Allochem is a term introduced by Folk (1959) to describe the recognisable grains in carbonate rocks. Any fragment from around ½mm upwards in size may be considered an allochem. Examples would include ooids, peloids, oncolites, fossil or pre… … Wikipedia
Burgsvik beds — The Burgsvik beds are a sequence of shallow marine limestones and sandstones found near the town of Burgsvik in the southern part of Gotland, Sweden. The beds were deposited in the Upper Silurian period, around Ma|420, in warm, equatorial waters… … Wikipedia
