Definition of Trachyandesites. Meaning of Trachyandesites. Synonyms of Trachyandesites

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Definition of Trachyandesites

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Meaning of Trachyandesites from wikipedia

- Trachyandesite is an extrusive igneous rock with a composition between trachyte and andesite. It has little or no free quartz, but is dominated by sodic...
- Trachybasalt. S2 (Basaltic trachyandesite)—*Sodic and pot****ic variants are Mugearite and Shoshonite. S3 (Trachyandesite—*Sodic and pot****ic variants...
- fields, such as the trachyandesite field, are further classified by the ratio of pot****ium to sodium (so that pot****ic trachyandesites are latites and sodic...
- varying between different rock types. Orthopyroxene is absent in the trachyandesites of Tambora. Olivine is most present in the rocks with less than 53...
- basalt-trachybasalt-trachyandesite volcanoes (Ngorongoro also contains trachydacite) and the 1.6-1.5 Ma Oldeani basalt-trachyandesite volcano. The highlands...
- example in the intrusive dioritic pluton of El Teniente, Chile and in trachyandesite pumice erupted by El Chichón volcano, Mexico. The name anhydrite was...
- N. Hanson (July 1984). "Mantle-derived Archaean monozodiorites and trachyandesites". Nature. 310 (5974): 222–224. Bibcode:1984Natur.310..222S. doi:10...
- is intermediate in composition between basalt and andesite Basaltic trachyandesite – Naming system for volcanic rocksPages displaying short descriptions...
- an estimated VEI of 7. An estimated 41 km3 (10 cu mi) of pyroclastic trachyandesite were ejected, weighing about 10 billion tonnes. This left a caldera...
- alkaline rocks atypical for oceanic islands, ranging from basalt through trachyandesite and trachyte to rhyolite. Ascension has a hot desert climate (BWh, according...