BGS Rock Classification Scheme

Lithic-wacke - A type of wacke. In the Rock Classification Scheme, it is defined as shown in British Geological Survey Research Report RR/99/03, section 2.2 and figs. 3, 4.

Code LWACKE
Description Lithic-wacke - A type of wacke. In the Rock Classification Scheme, it is defined as shown in British Geological Survey Research Report RR/99/03, section 2.2 and figs. 3, 4.
Qualifiers No qualifiers currently exist.
Definition Siliclastic arenaceous sedimentary rock 15 to 75% matrix (particles<0.032mm). Clasts quartz <95%, feldspar <50% & rock fragments >5% of quartz+feldspar+rock fragments. Clast size not defined. Diamictite.
Linked data http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/LWACKE

CAVEAT

"Thumbnail" definitions attached to some of the table entries are an interim attempt to provide simple short descriptions of the "unqualified" rock types presented within the BGS Rock Classification Scheme. Every effort has been made to ensure accuracy and consistency but minor contradictions or omissions might be present. The BGS welcomes any feedback pointing out such minor imperfections and/or providing constructive comment and suggestions for improvement of the definitions. In the first instance such feedback should be directed to Dr Tim McCormick.