BGS Rock Classification Scheme
Olivine-melilitite - A type of ultramafic-melilitic-rock. Melilitite is the general name for fine-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. 28b.
| Code | OLMELI |
|---|---|
| Description | Olivine-melilitite - A type of ultramafic-melilitic-rock. Melilitite is the general name for fine-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. 28b. |
| Qualifiers | No qualifiers currently exist. |
| Definition | Fine-grained, av. <0.25mm exotic crystalline extrusive rock; melilite 10-90%, olivine 10-90%, clinopyroxene <80% of Mel+Ol+Cpx |
| Linked data | http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/OLMELI |
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.