basement rock

basement complex

noun Geology.
the undifferentiated assemblage of rock (basement rock) underlying the oldest stratified rocks in any region: usually crystalline, metamorphosed, and mostly, but not necessarily, Precambrian in age.

Origin:
1895–1900

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To basement rock
Explore Dictionary.com
Previous Definition: basement membrane
Next Definition: basement-complex
Words Near: basement rock
More from Thesaurus.com
Synonyms and Antonyms for basement rock
More from Reference.com
Search for articles containing basement rock
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature