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Related to diapir: piercement
A geological structure formed when a mass of material of high plasticity and low density, such as salt, gypsum, or magma, pushes upward into overlying strata.
[French, from Greek diapeirein, to push through : dia-, dia- + peirein, to pierce; see per- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Geological Science) geology an anticlinal fold in which the brittle overlying rock has been pierced by material, such as salt, from beneath
[C20: from Greek diapeirainein to make holes through, pierce]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
an anticline of rock the upper regions of which have been penetrated by material from below.
[1915–20; < French < Greek diapeírein to drive through]
di`a•pir′ic (-ˈpɪr ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||diapir - a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata|
geology - a science that deals with the history of the earth as recorded in rocks
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