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norite
norite A coarse-grained, basic igneous rock consisting of essential plagioclase feldspar, orthopyroxene (hypersthene or bronzite), and clinopyroxene (augite), with accessory ilmenite (see ACCESSORY MINERAL; and ESSENTIAL MINERAL). Orthopyroxene is dominant over clinopyroxene, and the plagioclase is a calcic type (labradorite or bytownite). Norites, like gabbros, are found as layers in many large, layered basic intrusions (see INTRUSIVE), as well as forming intrusions in their own right.
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AILSA ALLABY and MICHAEL ALLABY. "norite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 12 Feb. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "norite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 12, 2012). http://www.encyclopedia.com/doc/1O13-norite.html AILSA ALLABY and MICHAEL ALLABY. "norite." A Dictionary of Earth Sciences. 1999. Retrieved February 12, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-norite.html |
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norite
norite Activated charcoal used to decolorize solutions.
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Cite this article
DAVID A. BENDER. "norite." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. 12 Feb. 2012 <http://www.encyclopedia.com>. DAVID A. BENDER. "norite." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. (February 12, 2012). http://www.encyclopedia.com/doc/1O39-norite.html DAVID A. BENDER. "norite." A Dictionary of Food and Nutrition. 2005. Retrieved February 12, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O39-norite.html |
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