Jump to content

Metavolcanic rock

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Eeekster (talk | contribs) at 22:17, 17 June 2018 (Added {{more footnotes}} tag to article (TW)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Metavolcanic rock from Michigan, USA.

In geology, metavolcanic rock is a type of metamorphic rock. Such a rock was first produced by a volcano, either as lava or tephra. Then, the rock was buried underneath subsequent rock and was subjected to high pressures and temperatures, causing the rock to recrystallize. Metavolcanic rock is commonly found in greenstone belts.[1]

Metavolcanic rock can contain the minerals quartz, feldspar, amphibole, pyroxene. Less common minerals can include biotite, garnet, actinolite, epidote, chalcedony, prehnite, and wodginite.

See also

References

  1. ^ "Geologic units containing Metavolcanic rock". United States Geological Survey. Retrieved 2018-06-17.
Stub icon

This article related to petrology is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Metavolcanic_rock&oldid=846311680"