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And another outcrop in the valley below, Craig Rhos-y-felin, supplied most of the rhyolite.—John Timmer, Ars Technica, 14 Aug. 2024 The mixture slowly cooled and fused into a tuff of rhyolite.—Roger Naylor, The Arizona Republic, 11 Apr. 2024 The aquifer recharges, but slowly: Rain is rare and getting rarer, and what does not evaporate right off takes its time to seep through all the layers of dirt and volcanic ash and limestone and granite and rhyolite and basalt.—Matthew Gavin Frank, Harper's Magazine, 21 Oct. 2022 There was likely an intrusion of new magma under the volcano a few years before the 2011 eruption, so that event may have primed the rhyolite to erupt and caused the faults to become less stable as the stresses changed.—Erik Klemetti, Discover Magazine, 10 Mar. 2022
Word History
Etymology
German Rhyolith, from Greek rhyax stream, stream of lava (from rhein) + German -lith -lite
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