BGS Rock Classification Scheme
Pseudotachylite - A particular variety of cataclasite in which fragments occur in a glassy groundmass produced by frictional melting. It may be injected as veinlets into adjoining cataclasite. British Geological Survey Research Report RR/99/02, section 7.4.
| Code | PSTACH |
|---|---|
| Description | Pseudotachylite - A particular variety of cataclasite in which fragments occur in a glassy groundmass produced by frictional melting. It may be injected as veinlets into adjoining cataclasite. British Geological Survey Research Report RR/99/02, section 7.4. |
| Qualifiers | No qualifiers currently exist. |
| Definition | Unfoliated, rock with primary cohesion, (protolith undefined) comprising 10-50% fragments within a glassy matrix produced by frictional melting +/- recrystallisation that may be injected into the parent rock a cataclasite variant. |
| Linked data | http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/PSTACH |
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.