| Computer Code: |
AMMU |
Preferred Map Code: |
AMMU |
| Status Code: |
Full |
| Age range: |
Pridoli Epoch (SO)
— Early Devonian Epoch (DL) |
| Lithological Description: |
Mainly mudstone and laminated siltstone, with quartzite-dominated conglomerate intercalations. |
| Definition of Lower Boundary: |
An unconformity with the Dalradian Supergroup below. |
| Definition of Upper Boundary: |
The base of the predominantly volcanic rocks belonging to the Ben Nevis Volcanic Formation. |
| Thickness: |
About 15m thickness exposed. |
| Geographical Limits: |
The Ben Nevis area of Scotland. |
| Parent Unit: |
Not Applicable (-)
|
| Previous Name(s): |
Ben Nevis Volcanic Series [Obsolete Name And Code: See BNVO]
(BNV)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Stream section in Allt a' Mhuilinn on the north side of Ben Nevis. McGarvie, 1999. |
| Reference(s): |
| McGarvie, D. W. 1999. Ben Nevis and Allt a' Mhuilinn. In: Caledonian igneous rocks of Great Britain. (Geological Conservation Review Series No. 17). Stephenson, D, and six others (editors). (Peterborough: Joint Nature Conservation Committee). |
| Burt, R M. 1994. The geology of Ben Nevis, south-west Highlands, Scotland. Unpublished PhD thesis, University of St Andrews. |
| Browne, M A E, Smith, R A, and Aitken, A M. 2002. Stratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. British Geological Survey Research Report RR/01/04. 67 pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S053
|
