| Computer Code: |
WHD |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Wenlock Epoch (SW)
— Wenlock Epoch (SW) |
| Lithological Description: |
Sandstones, mudstones, with fish beds. (Correlative of Waterhead Group - Glenbuck Group). |
| Definition of Lower Boundary: |
Drawn at base of sandstones of the Passage Formation where they rest conformably on sandstones of the Dunside Formation of the Priesthill Group. |
| Definition of Upper Boundary: |
Drawn at conformable upward passage from sandstones of the Logan Formation to conglomerate of the Middlefield Conglomerate of the Dungavel Group. |
| Thickness: |
720m approx. |
| Geographical Limits: |
Strathclyde, Scotland. |
| Parent Unit: |
Not Applicable (-)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Waterhead, Strathclyde, Scotland. |
| Reference(s): |
| Geikie, A. 1873. Lanarkshire: Central Districts. Memoirs of the Geological Survey of Scotland. |
| Walton, E K. 1983. Lower Palaeozoic - Stratigraphy. In Craig, G Y (editor), Geology of Scotland (2nd edition)(Edinburgh: Scottish Academic Press.) |
| Cameron, I B, and Stephenson, D. 1985. British Regional Geology: The Midland Valley of Scotland (3rd Edition). (London: HMSO for British Geological Survey.) |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S023
|
