wacke


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Related to wacke: Arenite, lithic sandstone

wacke

(ˈwækə)
n
(Geological Science) obsolete any of various soft earthy rocks that resemble or are derived from basaltic rocks
[C18: from German: rock, gravel, basalt]
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References in periodicals archive ?
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.
The Gold Creek zone is comprised of carbonate-altered wacke and tuffaceous wacke located at the conjunction of the Gold Creek and Poquette Faults and in proximity to a hornblende diorite intrusion.
30 South Wacke Drive, Suite 2500, Chicago, IL 60606-7481
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.
As expected above the target, drilling has intersected dark to medium grey carbonaceous wacke laminate (CWL) of Hughes Range Facies Aldridge Formation unit A1c, that is characteristic of- and tentatively correlated with- the top of the lower Aldridge Formation at Sullivan.
This package is overlain to the east by additional Tetagouche Group rocks including pyritiferous black shale intercalated with felsic volcanic rocks and mafic volcanic rocks of the Hayden Lake Formation as well as wacke and shale of the Push and Be Damned Formation (Fig.
Discontinuous lenses of volcanic siltstone, wacke and conglomerate are commonly associated with the felsic pyroclastic units, but chemically precipitated sedimentary rocks (e.
In addition, it is now believed that at least two distinct zones of mineralization have been intersected within interbedded shales and siltstones, these zone are stratigraphically above and below a more competent quartz wacke unit which hosts bonanza grade mineralization.