wacke


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Related to wacke: Arenite, lithic sandstone

wacke

[′wak·ə]
(petrology)
Sandstone composed of a mixture of angular and unsorted or poorly sorted fragments of minerals and rocks and an abundant matrix of clay and fine silt.
References in periodicals archive ?
The combined results have shown that, through the use of STEINERT's Sensor Sorter process, 45% of insignificantly mineralised or barren Quartz Wacke can be separated and rejected after crushing, thereby significantly reducing milling and downstream treatment processes.
de nuevo WACKE, <<Circumscribere>>, gerechter Preis und die Arten der List, op.
The showings are hosted by hornfelsic wacke and skarn which are cut by late stage, greissenized quartz stockworks carrying Asp (Arsenopyrite) and Au with attendant W, Bi and Mo mineralization.
The middle clastic interval is characterized by shale, siltstone, wacke, and lesser sandstone and breccia, and is tuffaceous in places.
(1993) estudian el afloramiento del rio Corredores y lo incluyen dentro de la Formacion Gatun, compuesto por una arenisca litica (wacke), la cual presenta ocasionalmente capas ricas en fosiles (reconocen: bivalvos, gasteropodos, fragmentos de equinodermos, foraminiferos y vertebrados).
30 South Wacke Drive, Suite 2500, Chicago, IL 60606-7481
44 [degrees] 30'S Elevation range 400-1800 m 400-1900 m Uplift rates 0.4 mm/year 0.4 mm/year (Wellman 1979; Williams 1991) Bedrock Predominantly grey- Predominantly grey- wacke and argillite wacke and argillite (Mutch 1963; Gair (Gair 1967) 1967) Soil parent material Colluvium and loess Colluvium and loess Nearest Met.
Trucker Perry Wacke, 32, of Rotterdam, and chef You Yi, 38, and Ying Yo, 29, of South Woodford, Essex, also face charges.
Wacke, Circumscribere, gerechter Preis und die Arten der List, 94 Zerrschrift der Savigny-Stiftung for Rechisgeschichte (Romanistische Abteilung) 183, 186 (1977), and the literature cited there.
3 ore zone is comprised of silicified wacke with moderate potassium feldspar (k-spar) alteration.