diapir - What does it mean?
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Definition of 'diapir'Noun
( en-noun)
(geology) An intrusion of a ductile rock into an overburden.
* 1989 , Nigel Henbest, " Geologists hit back at impact theory of extinctions ", New Scientist , 29 April 1989:
- "If a diapir is outside an established plume it rises at a much slower rate," Loper says.
* 1994 , Peter Olson, "Mechanics of Flood Basalt Magmatism", in Magmatic Systems (ed. Michael P. Ryan), Academic Press (1994), ISBN 0126050708, page 12 :
- This final stage is characterized by the cooling and resolidification of the partially molten diapir within the mantle, slow subsidence at the surface, and greatly diminished rates of crustal addition.
* 2004 , (Richard Fortey), The Earth: An Intimate History , HarperCollins (2010), ISBN 9780007373338, unnumbered page :
- Deeply buried deposits of sea-salt dome upwards and pass through the overlying strata, as a kind of intrusive lobe, eventually emerging at the surface – the rising tongue is called a diapir .
Derived terms
* diapiric
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