- rock composed of angular fragments of older rocks melded together.
Origin of breccia
Examples from the Web for breccia
Its material is a breccia from a quarry near Thebes, and is remarkable for its hardness.Museum of Antiquity
L. W. Yaggy
Breccia is a rock in which the included fragments are angular.Geology
It is composed of huge blocks of breccia, some of them thirteen feet long.
A breccia is a rock made up of angular pebbles or fragments of other rocks.Roman Mosaics
The investigation disclosed several different beds of stalagmite, cave earth, and breccia.The Prehistoric World
E. A. Allen
- a rock consisting of angular fragments embedded in a finer matrix, formed by erosion, impact, volcanic activity, etc
Word Origin and History for breccia
"rock of angular pieces," 1774, from Italian breccia, "marble of angular pieces," from a Germanic source akin to Old High German brecha "a breaking," from Proto-Germanic *brekan, from PIE *bhreg- "to break" (see fraction).
- A rock composed of angular fragments embedded in a fine-grained matrix. Breccias form from explosive volcanic ejections, the compaction of talus, or plate tectonic processes. Breccias are different from conglomerates in that the fragments they contain are angular instead of rounded.