BGS Rock Classification Scheme
Metamorphic rock - In the Rock Classification Scheme, this high level class includes metasedimentary rock, metavolcaniclastic rock, meta-igneous rock, metamorphic rock with unknown protolith, mechanically broken and reconstituted rock, metasomatic-rock and hydrothermal-rock. Metamorphism encompasses all the solid state changes that occur between the upper and lower limits of metamorphism. Major changes in bulk composition are referred to as metasomatism. British Geological Survey Research Report RR/99/02, section 1 and fig. 1.
| Code | +#MET |
|---|---|
| Description | Metamorphic rock - In the Rock Classification Scheme, this high level class includes metasedimentary rock, metavolcaniclastic rock, meta-igneous rock, metamorphic rock with unknown protolith, mechanically broken and reconstituted rock, metasomatic-rock and hydrothermal-rock. Metamorphism encompasses all the solid state changes that occur between the upper and lower limits of metamorphism. Major changes in bulk composition are referred to as metasomatism. British Geological Survey Research Report RR/99/02, section 1 and fig. 1. |
| Qualifiers | No qualifiers currently exist. |
| Definition | Not Available |
| Linked data | http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/+#MET |
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.