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xenocryst

Line breaks: xeno|cryst
Pronunciation: /ˈzɛnə(ʊ)krɪst
 
/

Definition of xenocryst in English:

noun

Geology
A crystal in an igneous rock which is not derived from the original magma.
Example sentences
  • This could represent a xenocryst derived from Archaean basement rocks of the region.
  • Again, the lack of zircon xenocrysts in this sample does not allow discrimination between these alternatives.
  • The xenocrysts provide evidence that earlier Neoproterozoic rocks were present in the region and that locally rocks date back to 1929 Ma.

Origin

late 19th century: from xeno- 'foreign' + crystal.

Derivatives

xenocrystic

1
Pronunciation: /-ˈkrɪstɪk/
adjective
Example sentences
  • Many of the intrusions contain veins and irregular patches of xenocrystic hybrid rock and granite.
  • There is also a subpopulation of subrounded xenocrystic zircons, which are slightly more brown than euhedral grains.
  • These are interpreted as xenocrystic cores and are of a similar age to zircon analysed elsewhere in the Anatolide belt of western Turkey.

Definition of xenocryst in:

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