Share this entry

Share this page

diatreme

Line breaks: dia|treme
Pronunciation: /ˈdʌɪətriːm
 
/

Definition of diatreme in English:

noun

Geology
A long vertical pipe or plug formed when gas-filled magma forced its way up through overlying strata.
Example sentences
  • Various architectures connecting extrusive mud volcanic cones to their underlying source layer have been described, ranging from bulbous diapirs to steep diatremes and narrow vertical pipes.
  • The only known igneous rocks in the area are Permian periodotite and lamprophyre dikes as well as diatremes of ultramafic composition associated with the Fluorite district.
  • The Sloan deposits proved to be uneconomic and were closed; however, the Kelsey Lake diatremes in Colorado opened in 1996 with high expectations.

Origin

early 20th century: from dia- 'through' + Greek trēma 'perforation'.

Definition of diatreme in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day terpsichorean
Pronunciation: ˌtəːpsɪkəˈriːən
adjective
relating to dancing