Bedrock (Inventory)/Breccia/calcite matrix
From LagWiki
The calcite matrix field of the bedrock breccia section should be used to list stations which exhibit breccia that is bound by a calcite matrix.
Breccia is composed of fragments of other rock cemented together by some kind of matrix. Breccia to be listed in this field is cemented by calcite.
See also
- silt matrix breccia