| Computer Code: |
BJR |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Neoproterozoic Era (AZ)
— Neoproterozoic Era (AZ) |
| Lithological Description: |
Ignimbritic rhyolite flows. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
Within the outcrop of the Jersey Volcanic Group in northern Jersey. |
| Parent Unit: |
Jersey Volcanic Group (JYVO)
|
| Previous Name(s): |
St John's Rhyolite Formation [Obsolete Code: Use BJR]
(TRH)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Power, G M and Gibbons, W. 1993. Precambrian rocks in the Channel Islands. 98-104 in Gibbons, W and Harris, A L (editors), A revised correlation of Precambrian rocks in the British Isles. Geological Society, London, Special Report No.22. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
