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Tephriphonolite

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Type of igneous rock

Tephriphonolite ortephri-phonolite is amafic tointermediate extrusive igneous rock in composition betweenphonotephrite andphonolite.^[1] It contains 9–14%alkali content and 48–57%silica content (seeTAS diagram).^[2] Tephriphonolite is roughly equivalent totephritic phonolite of theQAPF classification.^[3]

Tephriphonolite has been found, for example, atColli Albani volcano in Italy^[4] and in theAsunción Rift ofParaguay.^[5]

References

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^"Unusual Lava Types".Strongly Alkaline Lavas.San Diego State University. Archived fromthe original on 2020-11-05. Retrieved2016-09-11.
^Bailey, Roy A. (2004). "Eruptive History and Chemical Evolution of the Precaldera and Postcaldera Basalt-Dacite Sequences, Long Valley, California: Implications for Magma Sources, Current Seismic Unrest, and Future Volcanism".United States Geological Survey: 17.{{cite journal}}:Cite journal requires|journal= (help)
^Le Maitre, R.W. (editor) (2002).Igneous Rocks — A Classification and Glossary of Terms (2nd ed.). Cambridge: Cambridge University Press. p. 32.ISBN 0-521-66215-X.{{cite book}}:|author= has generic name (help)
^Campagnola, S.; Vona, A.; Romano, C.; Giordano, G. (2016). "Crystallization kinetics and rheology of leucite-bearing tephriphonolite magmas from the Colli Albani volcano (Italy)".Chemical Geology.424.Elsevier:12–29.Bibcode:2016ChGeo.424...12C.doi:10.1016/j.chemgeo.2016.01.012.
^Velázquez, V.F.; Riccomini, C.; de Barros Gomes, C.; Kirk, J. (2011)."The Cretaceous Alkaline Dyke Swarm in the Central Segment of the Asunción Rift, Eastern Paraguay: Its Regional Distribution, Mechanism of Emplacement, and Tectonic Significance".Journal of Geological Research.2011:1–18.doi:10.1155/2011/946701.

v t e Volcanoes
Types	Caldera Cinder cone Complex volcano Cryovolcano Cryptovolcanic structure Fissure vent Lava cone Lava dome Maar Mud volcano Parasitic cone Pyroclastic cone Pyroclastic shield Rootless cone Shield volcano Somma volcano Stratovolcano Subglacial volcano Submarine volcano Supervolcano Tossol Volcanic cone
Volcanic rocks	Agglomerate Andesite Basalt Basaltic andesite Benmoreite Blairmorite Cinder Dacite Felsite Ignimbrite Komatiite Lapilli Latite Leucitite Nephelinite Obsidian Phonolite Phonotephrite Pumice Rhyodacite Rhyolite Tephra Tephriphonolite Trachyandesite Trachybasalt Trachyte Tuff Pyroclastic fall Pyroclastic flow
Lists and groups	Hotspot Lists of volcanoes Eruptions by death toll Decade Volcanoes Volcanic arc Volcanic belt Volcanic field monogenetic polygenetic
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v t e Types of rocks
Igneous rock	Adakite Alkali feldspar granite Andesite Anorthosite Aplite Basalt Alkali basalt Picrite basalt Basaltic trachyandesite Mugearite Shoshonite Basanite Blairmorite Boninite Carbonatite Charnockite Enderbite Dacite Diabase Diorite Napoleonite Dunite Essexite Foidolite Gabbro Granite Granodiorite Granophyre Harzburgite Hornblendite Hyaloclastite Icelandite Ijolite Kimberlite Komatiite Lamproite Lamprophyre Latite Lherzolite Monzogranite Monzonite Nepheline syenite Nephelinite Norite Obsidian Pegmatite Peridotite Phonolite Phonotephrite Porphyry Pumice Pyroxenite Websterite Quartz diorite Quartz monzonite Quartzolite Rhyodacite Rhyolite Comendite Pantellerite Scoria Shonkinite Sovite Syenite Tachylyte Tephriphonolite Tephrite Tonalite Trachyandesite Benmoreite Trachybasalt Hawaiite Trachyte Troctolite Trondhjemite Tuff Ignimbrite Wehrlite
Sedimentary rock	Argillite Arkose Banded iron formation Breccia Calcarenite Chalk Chert Claystone Coal Conglomerate Coquina Diamictite Diatomite Dolomite Evaporite Flint Geyserite Greywacke Gritstone Itacolumite Jaspillite Laterite Lignite Limestone Lumachelle Marl Mudstone Oil shale Oolite Phosphorite Sandstone Shale Siltstone Sylvinite Tillite Travertine Tufa Turbidite Varve Wackestone
Metamorphic rock	Anthracite Amphibolite Blueschist Cataclasite Eclogite Gneiss Granulite Greenschist Hornfels Calcflinta Itabirite Litchfieldite Marble Migmatite Mylonite Metapelite Metapsammite Phyllite Pseudotachylite Quartzite Schist Serpentinite Skarn Slate Suevite Talc carbonate Soapstone Tectonite Whiteschist
Specific varieties	Adamellite Appinite Aphanite Borolanite Blue Granite Epidosite Felsite Flint Ganister Gossan Hyaloclastite Ijolite Jadeitite Jasperoid Kenyte Lapis lazuli Larvikite Litchfieldite Llanite Luxullianite Mangerite Novaculite Pietersite Pyrolite Rapakivi granite Rhomb porphyry Rodingite Shonkinite Taconite Tachylite Teschenite Theralite Unakite Variolite Wad

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