BGS Rock Classification Scheme

Pyroxene-olivine-melilitolite - A type of ultramafic-melilitic-rock. Melilitolite is the general name for coarse-grained melilitic rocks, and they are classified according to their melilite - olivine - clinopyroxene content. British Geological Survey Research Report RR/99/06, section 6.2 and fig. 28a.

Code PXOLMO
Description Pyroxene-olivine-melilitolite - A type of ultramafic-melilitic-rock. Melilitolite is the general name for coarse-grained melilitic rocks, and they are classified according to their melilite - olivine - clinopyroxene content. British Geological Survey Research Report RR/99/06, section 6.2 and fig. 28a.
Qualifiers No qualifiers currently exist.
Definition Coarse-grained, av. between 2-16mm exotic crystalline extrusive/intrusive rock; melilite 10-80%, olivine 10-80%, clinopyroxene 10-45% of Mel+Ol+Cpx, Clinopyroxene<Olivine
Linked data http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/PXOLMO

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.