Computer Code: |
WASA |
Preferred Map Code: |
notEntered |
Status Code: |
Index Level |
Age range: |
Asbian Substage (CR)
— Asbian Substage (CR) |
Lithological Description: |
A typically fine-grained, off-white, often thickly bedded with trough cross bedding, siliceous sandstone containing little mica or carbonaceous material, used locally as a building stone. |
Definition of Lower Boundary: |
Status uncertain but likely to be erosive on underlying argillaceousand arenaceous rocks of the Gullane Formation. |
Definition of Upper Boundary: |
Transitional by upward fining into mainly non-marine siltstone and mudstone of the Gullane Formation |
Thickness: |
Between 10 m and 20 m thick, in the Granton and Wardie area of the City of Edinburgh. |
Geographical Limits: |
Only known for certain in Edinburgh area |
Parent Unit: |
Gullane Formation (GUL)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
A partially filled quarry at Granton. |
Reference(s): |
Wyatt |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |