BGS Rock Classification Scheme
Mylonite - A type of mylonitic-rock. In the Rock Classification Scheme, it is one in which porphyroclasts comprise 10 - 50% by volume of the rock. British Geological Survey Research Report RR/99/02, section 7.3 and table 5.
| Code | MYLO |
|---|---|
| Description | Mylonite - A type of mylonitic-rock. In the Rock Classification Scheme, it is one in which porphyroclasts comprise 10 - 50% by volume of the rock. British Geological Survey Research Report RR/99/02, section 7.3 and table 5. |
| Qualifiers | No qualifiers currently exist. |
| Definition | Deformed (ductile), intensely foliated rock (protolith undefined) with primary cohesion, containing 10-50% porphyroclasts(commonly lensoid with tails indicating shearing sense) in a finer grained dynamically recrystallised matrix |
| Linked data | http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/MYLO |
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.