extrusive
Example Sentences
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These are known as fine-grained extrusive, or volcanic, igneous rocks.
From Textbooks • Jan. 1, 2017
Basalt and gabbro are the extrusive and intrusive names for mafic igneous rocks, and peridotite is ultramafic, with komatiite as the fine-grained extrusive equivalent.
From Textbooks • Jan. 1, 2017
In some cases, extrusive lava cools so rapidly it does not develop crystals at all.
From Textbooks • Jan. 1, 2017
Andesite is a fine crystalline intermediate extrusive rock.
From Textbooks • Jan. 1, 2017
What are the reasons that whenever elective and prescribed studies are mixed, an extrusive force regularly appears in the elective?
From The Teacher Essays and Addresses on Education by Palmer, Alice Freeman
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.