rhyodacite

English

Etymology

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Noun

rhyodacite (countable and uncountable, plural rhyodacites)

1. (geology) An extrusive volcanic rock intermediate in composition between dacite and rhyolite
   • 2016 February 18, “Three Millennia of Southwestern North American Dustiness and Future Implications”, in PLOS ONE‎^[1], →DOI:

     Vent facies on the north and eastern sides of Fish Lake are mostly flows and breccias of andesite and rhyodacite.