BGS Rock Classification Scheme

Cobbles, clayey, silty [Unlithified Deposits Coding Scheme]

Code LCZ
Description Cobbles, clayey, silty [Unlithified Deposits Coding Scheme]
Qualifiers clayey   silty   
Definition Siliciclastic sediment, clasts >50% or predominantly, cobble-grade 64-256mm. Silt-grade 0.004-0.032mm particles & lesser clay-grade <0.004mm particles, both 5-20vol%. Composition not defined.
Linked data http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/LCZ

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.