Computer Code: |
INS |
Preferred Map Code: |
InS |
Status Code: |
Full |
Age range: |
Mid Devonian Epoch (DM)
— Mid Devonian Epoch (DM) |
Lithological Description: |
Red sandstone sequence incorporating the Daviot Conglomerate, Nairnside Sandstone, Leanach Sandstone, Inshes Flagstone and Hillhead Sandstone formations. |
Definition of Lower Boundary: |
Unconformable base of Old Red Sandstone sequence. |
Definition of Upper Boundary: |
Unconformable base of the Nairn Beds. |
Thickness: |
1000m+ |
Geographical Limits: |
Inverness - Nairn. |
Parent Unit: |
Old Red Sandstone Supergroup (ORS)
|
Previous Name(s): |
Middle Old Red Sandstone
(-62)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Area |
Area to south-east of Great Glen Fault. |
Reference(s): |
Fletcher, T P et al. 1996. Geology of the Fortrose and eastern Inverness district. Memoir of the British Geological Survey, Sheet 84W (Scotland). |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S084
S095
S096
S073
S073
S083
S084
S097
S096
S086
|