Paragneiss

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paragneiss [′par·ə‚nīs]

(geology)

A gneiss showing a sedimentary parentage.

Paragneiss

a metamorphic rock formed in the earth’s crust from sedimentary rocks (sandstones and argillaceous schists) that recrystallized in the deep zones of the earth’s crust in an amphibolite facies of metamorphism. Paragneiss consists of quartz and feldspars with admixtures of other minerals, typically andalusite, sillimanite, disthen, staurolite, cordierite, and tourmaline. The varieties of paragneiss are distinguished according to the admixture content. A certain excess of alumina, caused by the content of clay material in the primary sediments, is typical of paragneiss. In contrast to paragneiss, orthogneiss is formed through transformation of magmatic rocks.

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No references found			3) contains a calcite marble horizon, roughly 2 km long by < 10 m wide, intercalated in a sequence of mafic metavolcanic rocks and paragneiss. Government geoscience stimulates mineral exploration in the superior ... by Simard, Martin / Geoscience Canada The sampling was performed on a peatland covering a presumed geological contact between granite and paragneiss. Vantex Resources Ltd.: Gold Anomalies on the ANA Property, James Bay by Business Wire The host rock is composed of a well sheared sillimanite-biotite-garnet paragneiss. Eloro To Acquire Additional Property in James Bay Area; Eloro ... by Business Wire			paraffin scale paraffin series Paraffin Therapy paraffin wax paraffin-base crude paraffinic hydrocarbon paraffinicity paraffinum liquidum Parafievka Paraformaldehyde Paragachai Paraganglia paraganglion paragastric paragenesis Paragenesis, Elemental Paragenesis, Mineral paragenetic paragenetic mineralogy paragenetic sequence Parageosyncline paragglutination paraglider paraglomerate paragnath Paragneiss paragon Paragon, Mary Anne Paragonimiasis paragonite Paragould paragraph paragraph tag paragraphia Paraguana Paraguaná Paraguaná Peninsula Paraguay Paraguay Independence Day Paraguay River Paraguay tea Paraguayan Communist Party Paraguayans parahelium parahilgardite parahopeite Parahormones parahydrogen Paraiba Paraíba Paraíba do Sul River			parageosyncline parageusia paragglutination Paragium paragle fly Paragle redicum paraglide paraglide paraglided paraglided paraglider paraglider paraglider Paraglider Dead Man's Curve Paraglider Research Vehicle paragliders paragliders paraglides paraglides paragliding paragliding Paragliding World Cup Association Paraglobulin paraglomerate Paraglossa paraglossia Paragnath Paragnath Paragnathous Paragnathus Paragneiss Paragoge paragoges Paragogic Paragogic letters paragon paragon paragon paragon paragon Paragon Chartered Chemists Paragon City Detective Agency Paragon Cooperative Learning Academy Paragon CRT Paragon CRT Paragon Federal Credit Union Paragon Global Technology, Inc. Paragon Learning Style Inventory Paragon Regional Governance Programme Paragon, Mary Anne paragoned paragoned paragoned paragoned paragonimiasis paragonimiasis Paragonimus Paragonimus kellicotti Paragonimus westermani Paragonimus westermani Newly Excysted Metacercariae Paragonimus westermani Whole Worm Extracts

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