Bedrock (Inventory)/Breccia
From LagWiki
The Breccia subsection of the Bedrock section is further classified as to the binding agent in the matrix.
calcite matrix
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
Bedrock (Inventory)/Breccia/silt matrix