diapir definition by Webster's New World
Geol. a dome formation in which the rigid top layers have been split open by pressure from an underlying plastic core
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- diapiric adjective
diapir definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
An anticlinal fold in which a mobile core, such as salt or gypsum, has pierced through the more brittle overlying rock.
Origin: French, from Greek diapeirein, to push through : dia-, dia- + peirein, to pierce; see per-2 in Indo-European roots.
- diˌa·pirˈic adjective
diapir - Science Definition
A fold or dome, such as an anticline, in which the upper strata of sediment or rock have been ruptured by the upward movement of more plastic rock, such as a body of salt, gypsum, or lava.