Dacite is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides, intermediate in composition between andesite and rhyolite. It is composed predominantly of plagioclase feldspar and quartz. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Formation ClassIgneous, extrusive (formed by rapid solidification of silica-rich lava, intermediate between andesite and rhyolite) 1 Classification
Classification UseBuilding and Construction 2 Dacite
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Compositional series: dacite sits between andesite and rhyolite in silica content.
Source Dacite (Wikipedia)
Source Iztaccihuatl (Wikipedia)
Source Lava dome (Wikipedia)
Source Licancabur (Wikipedia)
Source Monte Pissis (Wikipedia)
Source Mount Isarog (Wikipedia)
Source Mount St. Helens (Wikipedia)
Source Poás Volcano (Wikipedia)
Compositional series: dacite sits between andesite and rhyolite in silica content.
Source Dacite (Wikipedia)
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Source Dacite (Wikipedia)
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1. Dacite (Wikipedia)
Wikimedia FoundationLead section
intermediate in composition between andesite and rhyolite.
Lead section
Dacite () is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides. It has a fine-grained (aphanitic) to porphyritic texture and is intermediate in composition between andesite and rhyolite.
Caused By: Volcanism, Lead paragraph
Dacite () is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides
View the Source 2. Geology.com: Dacite: Igneous Rock
Geology.comDacite AggregateQuote, Dacite Aggregate
Dacite is sometimes used to produce crushed stone
Wikidata: Dacite
Wikidata Q466481
Licancabur (Wikipedia)
Associated With: Licancabur, Lead paragraphQuote, Associated With: Licancabur, Lead paragraph
The volcano has primarily erupted andesite, with small amounts of dacite and basaltic andesite.
Iztaccihuatl (Wikipedia)
Associated With: Iztaccihuatl, Article text, rock DaciteQuote, Associated With: Iztaccihuatl, Article text, rock Dacite
There have been andesitic and dacitic Pleistocene and Holocene eruptions from vents at or near the summit.
Monte Pissis (Wikipedia)
Associated With: Monte Pissis, Article text, rock DaciteQuote, Associated With: Monte Pissis, Article text, rock Dacite
Monte Pissis is a large andesitic-dacitic volcanic centre.
Mount Isarog (Wikipedia)
Associated With: Mount Isarog, Article text, rock DaciteQuote, Associated With: Mount Isarog, Article text, rock Dacite
The magmatic composition of Isarog Volcano is primarily andesitic, with minor dacitic components.
Mount St. Helens (Wikipedia)
Associated With: Mount St. Helens, Article text, rock DaciteQuote, Associated With: Mount St. Helens, Article text, rock Dacite
Helens started its growth in the Pleistocene 37,600 years ago, during the Ape Canyon stage, with dacite and andesite eruptions of hot pumice and ash.
Poás Volcano (Wikipedia)
Associated With: Poas Volcano, Infobox: geologyQuote, Associated With: Poas Volcano, Infobox: geology
Andesite, Basalt, Basaltic Andesite, Picro-Basalt, Dacite
Lava dome (Wikipedia)
Associated With: Lava Dome, Lead sectionQuote, Associated With: Lava Dome, Lead section
Since viscous basaltic and andesitic domes weather fast and easily break apart by further input of fluid lava, most of the preserved domes have high silica content and consist of rhyolite or dacite.
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