graywacke

listen to the pronunciation of graywacke
English - Turkish
(Jeoloji) Kayaç, grovak
(Jeoloji) kayaç

Related Terms

feldispathic graywacke
feldipastik grovak
English - English
Sandstone composed of poorly sorted angular clasts
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- a rock similar to sandstone but with a significant content of mud/silt; graywackes exhibits poor sorting and bedding, characteristic of minor water action
or dirty sandstone Sedimentary rock composed of sand-sized grains in a fine-grained clay matrix. The sand-sized grains frequently include rock fragments of wide-ranging mineralogies (e.g., pyroxenes, amphiboles, feldspars, and quartz). The clay matrix may constitute up to 50% of the volume. Of the clay minerals, chlorite and biotite are most abundant. The matrix tends to bind the grains strongly and form a relatively hard rock
Texturally and mineralogically immature sandstones that contain more than 15% clay minerals They may consist of angular to sub-rounded grains of quartz and feldspar, small pebbles, and a fine matrix of clay minerals, chlorite, and carbonate
{i} (Geology) coarse-grained wacke of dark gray color
A conglomerate or grit rock, consisting of rounded pebbles and sand firmly united together
grauwacke
graywacke

    Hyphenation

    gray·wacke

    Pronunciation

    Etymology

    [ 'grA-"wak, -"wa-k& ] (noun.) 1811. partial translation of German Grauwacke.
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