wackestone


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wackestone

[′wak·ə‚stōn]
(petrology)
A limestone composed of mud (micrite) containing more than 10% particles (grains) with diameters greater than 20 micrometers scattered throughout.
References in periodicals archive ?
Figure 2e is a SEM image of layer E2 containing wackestone OS.
Leyenda: Figura No 8: Wackestone (Wckst), Calizas de textura matriz soportado con mas del 10% de granos (fosiles) menores a 2 mm, se observan estructuras estilolitas.
The well exposed Upper Sinemurian, Pliensbachian and Lower Toarcian deposits cropping out in the coastal cliffs of the eastern part of the Asturias region in northern Spain, are represented by a succession of alternating lime mudstone to bioclastic wackestone and marl (Fig.
Arwa (Kimmeridgian to Tithonian) Fm is composed of argillaceous limestone, deep-water lime mudstone, and locally minor packstone, wackestone, grainstone, and black shale.
Las Sedimentitas de Cruces estan constituidas por sublitoarenitas y litoarenitas con fragmentos de cuarzo, feldespato, micas, opacos, circon, epidota y liticos de rocas sedimentarias y volcanicas; intercaladas con biomicritas con textura wackestone, bioesparitas arenosas con textura grainstone y lodolitas arenosas calcareas.
1 Birdbear well in Dunn County reveal carbonate-evaporate cycles consisting of alternating mudstone and dolomudstone beds, and an anhydrite capping carbonate mudstone to wackestone. The base of the upper unit is demarked by a 1.83 m--(6 ft) thick anhydrite cap that corresponds to the highest gamma ray spike above the Duperow Formation.
Crinoids, Bivalve, Brachiopodal Sandy Wackestone Facies (MF4): This facies is 8m thick and has two beds.
(2006) for carbonate rocks extracted from the Chapopote Knoll in the abyssal plain near the Campeche Bank in the southeastern Gulf of Mexico, described as a wackestone micrite with [delta][sup.13]C ranging between -23.0 and -23.5%.
En dicho modelo, la rampa interna estaria constituida principalmente por calizas grainstone ooliticas, peloidales y bioclasticas; la rampa media, por calizas wackestone y packstone con abundantes algas tipo Beresella y esponjas calcareas tipo Chaetetes, y la rampa externa, por calizas wackestone con espiculas de esponjas y calizas micriticas bioconstruidas.
The classification of Dunham, 1962 divides limestone on the basis of texture into grainstone, packstone, mudstone, wackestone and boundstone.
De acuerdo a la clasificacion de Dunham (1962) la caliza corresponde a un "wackestone" con una matriz homogenea, soportada por lodo, con una dolomitizacion secundaria de tipo sucroide, con bioclastos de gasteropodos, escasos braquiopodos y con abundantes microfracturas carbonatadas.