| Computer Code: |
ABIP |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Neoproterozoic Era (AZ)
— Neoproterozoic Era (AZ) |
| Lithological Description: |
Feldspathic and quartzose psammites with some interbanded calc-silicates and semipelite units up to 0.5m thick; some cross-bedding seen. |
| Definition of Lower Boundary: |
Top of the Creag na Sanais Semipelite Formation, where the predominant semipelite is overlain by predominantly feldspathic and quartzose psammites of the Allt nam Biorag Member |
| Definition of Upper Boundary: |
Incoming of the grey psammites of the typical Fara Psammite Formation, above the feldspathic and quartzose psammites, with or without calc-silicates, and semipelites of the Allt nam Biorag Member. |
| Thickness: |
c.400m |
| Geographical Limits: |
South of Newtonmore, between the Ericht - Laidon and Creag Liath faults |
| Parent Unit: |
Gaick Psammite Formation (GCKP)
|
| Previous Name(s): |
Part of the Moine Psammites [Obsolete Name and Code: Use ABIP, CDHP]
(-4416)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Partial Type Section |
Outcrops on the North side of Meall Ruigh nam Biorag. Leslie, A G et al., BGS Internal Report IR/03/048. |
| Reference(s): |
| Leslie, A G, Krabbendam, M and Smith, R A, 2003. Progress Report on the Geology of 1:50 k Sheet 64W (Newtonmore) British Geological Survey Internal Report, IR/03/048. 23pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
