brecciations
/ˌbrɛtʃiˈeɪʃənz/
noun
- Rocks composed of sharp, broken fragments cemented together by finer-grained material.
- Brecciations often form in fault zones where rocks are crushed and then re-cemented.
- The cliff face showed clear brecciations from a volcanic eruption millions of years ago.
- The geologist studied the brecciations to understand the ancient landslide.