Definition of Dacites. Meaning of Dacites. Synonyms of Dacites

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Definition of Dacites

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Meaning of Dacites from wikipedia

- biotite and hornblende. Other dacites, especially pyroxene-bearing dacites, are darker colored. In thin section, dacites may have an aphanitic to porphyritic...
- although the majority are of intermediate composition (such as Santiaguito, dacite-andesite, present day) The characteristic dome shape is attributed to high...
- constructed on a volcanic ba****t or rhyolites, basaltic andesites and dacites. The volcanoes erupted voluminous and long lava flows, grouped in three...
- percentage (>63%) of silica, the lava is described as felsic. Felsic lavas (dacites or rhyolites) are highly viscous and are erupted as domes or short, stubby...
- Paleozoic and Mesozoic rocks. The city's Mount Elden is a lava dome made of dacite, Sunset Crater is the youngest feature of the San Francisco volcanic field...
- magmas have a silica content greater than 63%. They include rhyolite and dacite magmas. With such a high silica content, these magmas are extremely viscous...
- erosion and weathering of rock; most commonly granites, but also schists, dacites, dolerites, ignimbrites, co**** sandstones and others. Tors are mostly...
- 'slate' or 'bluestone', a metamorphic phyllite rock, with both andesite and dacite mineral composition. Dacitic phyllite is a predominant type of rock found...
- deposits. The volcanic cones are composed of andesite, basaltic andesite and dacite. The volcano is mantled in ash from the 1912 eruption of Novarupta and from...
- erupt from the vent were hornblende-pyroxene andesites with a hornblende dacite dome at its summit. Glacial erosion has since modified its shape.[citation...