wacke
Example Sentences
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The terms quartz wacke, lithic wacke, and feldspathic wacke are used.
From Textbooks ● Jan. 1, 2015
Another name for a lithic wacke is greywacke.
From Textbooks ● Jan. 1, 2015
The quartz arenite and arkose have relatively little silt-clay matrix, while the lithic wacke has abundant matrix.
From Textbooks ● Jan. 1, 2015
TAHITI.—Passage from wacke into trap; singular volcanic rock with the vesicles half-filled with mesotype.
From Volcanic Islands by Charles Darwin
The rock is very often of a gray color; hence the name, grau, being German for gray, and wacke, being a provincial miner's term.
From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Sir Charles Lyell
