hyaloclastite
English
Etymology
This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.
hyalo- + clast + -ite
Noun
hyaloclastite (countable and uncountable, plural hyaloclastites)
- (geology) A type of volcanic rock containing glassy clasts, that is, fragments.
- 2004, Richard Fortey, The Earth, Folio Society 2011, p. 45:
- Explosive cooling and the sedimentation of glassy fragments results in a rock with a characteristic speckly texture known as hyaloclastite.
- 2004, Richard Fortey, The Earth, Folio Society 2011, p. 45: