Computer Code: |
BYF |
Preferred Map Code: |
notEntered |
Status Code: |
Pending Upgrade |
Age range: |
Mid Devonian Epoch (DM)
— Late Devonian Epoch (DU) |
Lithological Description: |
Sandstone with subsidiary calcareous mudstone and siltstone and trace conglomerate and pebbly (gravelly) sandstone. |
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: |
none recorded or not applicable
|
Parent Unit: |
Sumburgh Group (SUMH)
|
Previous Name(s): |
Bressay Flagstones [Obsolete Name and Code: Use BYF]
(-3888)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
none recorded or not applicable |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S126
S128
|