Definition of Slaty gneiss. Meaning of Slaty gneiss. Synonyms of Slaty gneiss

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Definition of Slaty gneiss

Slaty gneiss
Slaty Slat"y, a. [From Slate.] Resembling slate; having the nature, appearance, or properties, of slate; composed of thin parallel plates, capable of being separated by splitting; as, a slaty color or texture. Slaty cleavage (Min.), cleavage, as of rocks, into thin leaves or plates, like those of slate; -- applied especially to those cases in which the planes of cleavage are not parallel to the planes of stratification. It is now believed to be caused by the compression which the strata have undergone. Slaty gneiss (Min.), a variety of gneiss in which the scales of mica or crystals of hornblende, which are usually minute, form thin lamin[ae], rendering the rock easily cleavable.

Meaning of Slaty gneiss from wikipedia

- schist and gneiss. The slatey cleavage typical of slate is due to the preferred orientation of microscopic phyllosilicate crystals. In gneiss, the foliation...
- Schistose; schistosity Seriate texture Shear; sheared; shear fabric Slaty; slaty cleavage Specular Spherulite Spinifex texture; see also komatiite S-tectonite...
- throughout various geologic formations of the district into slates by creating slaty cleavages. In the Early to Middle Ordovician the Skiddaw Group was a deep...
- rocks. The most common rocks lying on the surface are argillaceous shales, slaty (geschieferte) greywackes and granite intrusions in the shape of two large...
- metamorphosed to greenschist or low grade amphibolite. Also they mostly have a slaty cleavage. Folds face the centre of the arc. In the west the folds are re****bent...
- least 10%. Formed by the disintegration of the acid igneous rocks and gneisses. argillaceous Sedimentary rocks of the clay grade, i.e. composed of minute...
- rock contains granite, anorthosite, quartz monzonite, syenite, and para-gneiss. Many different types of features can be found throughout the Catoctin Formation...
- Jur****ic: Antalo Limestones Tri****ic: Adigrat Sandstones Archaean: Gneisses, schists, slaty rocks Igneous Recent: Aden Volcanic Series Tertiary, Cretaceous:...
- followed in the Tonian period south east of the lineament with greywacke and slaty mudstone, and also some basic pillow lavas. The Oonah Formation has even...