Did you mean volcanic rock?
Definitions
GNU Webster's 1913
- adj. rocks which have been produced from the discharges of volcanic matter, as the various kinds of basalt, trachyte, scoria, obsidian, etc., whether compact, scoriaceous, or vitreous.
Examples
“Radioactive clocks for dating igneous volcanic rocks are conveniently zeroed at the moment the rock is formed by the solidification of molten lava.”
“The submarine is equipped to drill down for rock samples, through the superficial sediments of the sea bottom down to the volcanic rocks of the lithosphere itself, and it also has an onboard laboratory for dating rock samples radiometrically see Chapter 4.”
Lists
‘volcanic rocks’ hasn't been added to any lists yet.
Comments
No comments yet...
Log in or sign up to get involved in the conversation. It's quick and easy.