You must log in to edit PetroWiki. Help with editing
Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. More information
Message: PetroWiki is moving to OnePetro! Please visit PetroWiki's new home here.
Glossary:Extrusive igneous rock
Jump to navigation
Jump to search
A description of rock resulting from a magma breach to surface and exposed to atmospheric conditions during cooling.