The BGS Lexicon of Named Rock Units — Result Details

Feshiebridge Psammite Formation

Computer Code: FESP Preferred Map Code: notEntered
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Graded psammite, laminated psammite and micaceous psammite with bands of semipelite to pelite. Interpreted as an originally turbiditic succession.
Definition of Lower Boundary: Not interpreted to date but taken as the top of the Ord Ban Subgroup (Sheet 74E), where the semipelite, metacarbonate, calc-silicate, quartzite and amphibolite succession is overlain by interbedded psammite, semipelite and pelite belonging to the Feshiebridge Psammite Formation.
Definition of Upper Boundary: Incoming of the predominantly semipelite succession at the base of the Falls of Phones Semipelite Formation, above the interbedded psammite and pelite succession of the Feshiebridge Psammite Formation
Thickness: possibly 0.5 to 2km
Geographical Limits: Northeast of Kingussie - Moor of Feshie
Parent Unit: Corrieyairack Subgroup (GRCO)
Previous Name(s): Moine Series (-4042)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  In the River Feshie at Feshiebridge, Inverness-shire. 
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