wacke

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Related to wackes: 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 ?
However the geological setting appears to be similar to the Canadian Malartic mine which is hosted by Pontiac Group wackes intruded by porphyry plugs.
Based on the petrographic studies, using Gilbert (1982) classification of sandstone the rock type identified from the Khewra Sandstone is quartz wackes and feldspathetic wackes.
(2012), Smith, Smith, and Wackes (2008), Rhine and Greene (2006), Barr (2004), Dunham (2001), and FiSCA (n.d.).
Several studies have looked into the absence of traditional banks and the concentration of fringe banks in particular geographic areas (Smith, Wackes, and Smith 2012.
The upper part of the WT Complex mainly comprises quartz wackes, conglomerates, and mafic to intermediate and felsic volcanic rocks, metamorphosed into lower greenschist facies (Figure 1(b)).
Major and trace element characteristics suggest that protolith sediments for both units were wackes derived from felsic igneous sources and deposited at an active continental margin.
Most samples are metabasalts that belong to the chlorite zone of the greenschist facies, but other rock types include metagrey wackes and a metabasalt of the prehnite/ pumpellyite facies, and a glaucophanic metachert and glaucophanic metabasalt of the blueschist facies.
The ore consists of unsorted, matrix-supported, re-sedimented, polylithic breccia-conglomerate that occurs within channel-fill sequences comprising felsic pyroclastics, barren polylithic breccias and finegrained volcaniclastic rocks and wackes (Fig.
In the 1950's and 1960's an intensive mining of uranium ore took place near Pribram at the contact of the Central Bohemian Pluton and Barrandian metamorphic rocks (mainly siltstones, shales and wackes).
A fortiori, when Arp's and Schwitters's poetry is discussed, no use of made of Forster's extremely insightful essay on Arp's Kaspar as a "'Wackes" cosmique' which appeared in Saisons d'Alsace in 1967 or the pioneering essays written by Rex Last, Marion Malet, Harriett Watts, John Elderfield and M.