Trachybasalt
Trachybasalt is a volcanic rock with a composition between trachyte and basalt. Minerals in trachybasalt include alkali feldspar, calcic plagioclase, olivine, clinopyroxene and likely very small amounts of leucite or analcime.[2] Trachybasalt is a basalt with high alkali content (5 to 7% Na2O + K2O, see TAS diagram).
A variety of trachybasalt from Yamalo-Nenets Autonomous Okrug in Russia, known there as enzorite
Satellite image of Bayuda volcanic field in Sudan where nepheline-rich trachybasalt lavas have been erupted during the Holocene epoch[1]
See also
References
- "Bayuda Volcanic Field". Global Volcanism Program – Volcanoes of the World database. Smithsonian Institution. 5 June 2020. Retrieved 6 August 2020.
- Trachybasalt
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