trachyandesite
Sign in to savethumb|upright=1.35|A cut block of trachyandesite lava from a volcano in Auvergne (region)|Auvergne, France, used as building stone, forming part of the walls of [[Clermont-Ferrand Cathedral, France]] thumb|upright=1.35|Trachyandesite is field S3 in the TAS diagram
In the Vinony graph
Within Vinony's link graph, trachyandesite is referenced by 347 other articles, and connects out to igneous rock, feldspar and porphyry.
It sits within the topics Intermediate rocks and Volcanic rocks.
Its subject is documented across 9 Wikipedia language editions.
Wikidata facts
Show 1 more fact
- Commons category
- Trachyandesite
Sources (1)
via Wikidata · CC0
~3 min read
Encyclopedic overview
5 sectionsContents
- Petrology
- Varieties
- Occurrence
- References
- External links
thumb|upright=1.35|A cut block of trachyandesite lava from a volcano in Auvergne (region)|Auvergne, France, used as building stone, forming part of the walls of [[Clermont-Ferrand Cathedral, France]] thumb|upright=1.35|Trachyandesite is field S3 in the TAS diagram
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 plagioclase and alkali feldspar. It is formed from the cooling of lava enriched in alkali metals and with an intermediate content of silica.
Excerpted from Wikipedia’s “trachyandesite” article, available under the CC BY-SA 4.0 licence.