Share this entry
ultramafic Line breaks: ultra|maf¦ic
Pronunciation: /ˌʌltrəˈmafɪk/

Definition of ultramafic in English:


Relating to or denoting igneous rocks composed chiefly of mafic minerals.
Example sentences
  • Variably serpentinized Devonian mafic and ultramafic intrusive rocks occur in the western and northern parts of the map area.
  • A major source of iron, called iron laterite, is a type of residual deposit generated by the intense weathering of iron-rich rocks such as mafic and ultramafic volcanic rocks.
  • The provenance of the feldspar-bearing Crocker Formation and younger sandstones indicates a granitic source character, which conflicts with the abundance of mafic and ultramafic basement rocks exposed throughout much of Sabah.
Definition of ultramafic in:
Share this entry

What do you find interesting about this word or phrase?

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

Subscribe to remove adverts and access premium resources