| Computer Code: |
DRST |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Duckmantian Substage (CB)
— Duckmantian Substage (CB) |
| Lithological Description: |
Sandstone. |
| Definition of Lower Boundary: |
Diachronous; boundary lithologically defined. |
| Definition of Upper Boundary: |
Diachronous; boundary lithologically defined. |
| Thickness: |
36m. |
| Geographical Limits: |
Not defined. |
| Parent Unit: |
Not Entered (?)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Devon Colliery Shaft. (No longer accessible), Sheet S39E. |
| Reference(s): |
| Summary of the Geological Survey of Great Britain and the Museum of Practical Geology for the Year 1924. Published 1925, 138-143. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S039
|
