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acid rock

acid rock Igneous rock that contains more than about 60 per cent silica (SiO2) by weight, most of the silica being in the form of silicate minerals, but with the excess of about 10 per cent as free quartz. Typical acid rocks are granites, granodiorites, and rhyolites. See also alkaline rock; compare basic rock and intermediate rock.

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acid rock

acid rock Igneous rock containing more than about 60% Silica (SiO2) by weight, most of the silica being in the form of silicate minerals, but with the excess of about 10% as free quartz. Typical acid rocks are granites, granodiorites, and rhyolites. Compare BASIC ROCK; and INTERMEDIATE ROCK. See also ALKALINE ROCK.

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"acid rock." A Dictionary of Earth Sciences. . Encyclopedia.com. 25 Feb. 2018 <http://www.encyclopedia.com>.

"acid rock." A Dictionary of Earth Sciences. . Encyclopedia.com. (February 25, 2018). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/acid-rock

"acid rock." A Dictionary of Earth Sciences. . Retrieved February 25, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/acid-rock

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Citation styles

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Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

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American Psychological Association

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Notes:
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