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intermediate rock

intermediate rock

A Dictionary of Earth Sciences | 1999 | | Copyright

intermediate rock Igneous rock whose chemical composition lies between those of basic and acidic rocks, e.g. andesite. The limits are not fixed rigidly and a number of schemes exist that are based on modal mineralogy and the whole rock chemistry (see MODAL ANALYSIS). Compare ACID ROCK; and BASIC ROCK. See also ALKALINE ROCK.
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AILSA ALLABY and MICHAEL ALLABY. "intermediate rock." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "intermediate rock." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-intermediaterock.html

AILSA ALLABY and MICHAEL ALLABY. "intermediate rock." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-intermediaterock.html

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intermediate rock

A Dictionary of Ecology | 2004 | | Copyright

intermediate rock An igneous rock with a chemical composition between those of basic and acid rocks. The limits are not fixed rigidly.
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MICHAEL ALLABY. "intermediate rock." A Dictionary of Ecology. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "intermediate rock." A Dictionary of Ecology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O14-intermediaterock.html

MICHAEL ALLABY. "intermediate rock." A Dictionary of Ecology. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-intermediaterock.html

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