BGS Rock Classification Scheme

Sediment rich in organic matter - British Geological Survey Research Report RR/99/03, section 6.

Code	OSD
Description	Sediment rich in organic matter - British Geological Survey Research Report RR/99/03, section 6.
Qualifiers	No qualifiers currently exist.
Definition	Unlithified material with >20% organic material Composition & grain-size of inorganic & organic material not defined. Organic-rich sediment is the preferred term.
Linked data	http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/OSD

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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.