BGS Rock Classification Scheme

Phosphate-boundstone - A type of phosphorite, classified on the basis of its biogenic texture. It is a phosphorite in which the original components were bound and encrusted together by the action of plants and animals in the position of growth. British Geological Survey Research Report RR/99/03, section 4.2, table 11 and fig. 8.

Code PHBST
Description Phosphate-boundstone - A type of phosphorite, classified on the basis of its biogenic texture. It is a phosphorite in which the original components were bound and encrusted together by the action of plants and animals in the position of growth. British Geological Survey Research Report RR/99/03, section 4.2, table 11 and fig. 8.
Qualifiers No qualifiers currently exist.
Definition Sedimentary rock with components >50% of phosphates such as those of calcium, aluminium and iron, original components bound/encrusted by action of plants/animals in growth position (reefs). Component size not defined.
Linked data http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/PHBST

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.