BGS Rock Classification Scheme
Bioclastic sand deposit - A type of biological sediment. It consists of sand composed of broken and fragmental remains of organisms including shells, coral and lithothamnium algae. British Geological Survey Research Report RR/99/04, appendix 2.
| Code | BIOSND |
|---|---|
| Description | Bioclastic sand deposit - A type of biological sediment. It consists of sand composed of broken and fragmental remains of organisms including shells, coral and lithothamnium algae. British Geological Survey Research Report RR/99/04, appendix 2. |
| Qualifiers | No qualifiers currently exist. |
| Definition | Silicicalstic sediment with >50% grains from pre-existing siliceous rocks. Grains >50% or predominantly sand-grade, 0.032 to 2mm. Contains 5-20% bioclasts, (fossil fragments). Bioclast composition & components depositional environment not defined |
| Linked data | http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/BIOSND |
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.