Share this entry

Share this page

porphyritic

Syllabification: por·phy·rit·ic
Pronunciation: /ˌpôrfəˈridik
 
/

Definition of porphyritic in English:

adjective

Geology
Relating to or denoting a rock texture, typically found in volcanic rocks, containing distinct crystals or crystalline particles embedded in a fine-grained groundmass.
Example sentences
  • Coarser fractions additionally contain volcanic clasts of vesicular and porphyritic lava, tuff and pumice.
  • These crystals eventually form the phenocrysts found in porphyritic rocks.
  • The original porphyritic texture with plagioclase phenocrysts is still recognizable.

Definition of porphyritic 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 ads and access premium resources

Word of the day cumbersome
Pronunciation: ˈkəmbərsəm
adjective
large or heavy and therefore difficult to carry…