The BGS Lexicon of Named Rock Units — Result Details

Delnadamph Volcanic Member

Computer Code: DELV Preferred Map Code: SYMB
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Actinolite-rich finely to coarsely crystalline amphibolite, locally vesicular, pillowed in parts. Amphibolitic schists, hornblende-bearing psammite, quartzite and pelite interbeds.
Definition of Lower Boundary: Lower limit of metavolcanic units within graphitic pelites and semipelite sequence of the Glenbuchat Graphitic Schist Formation.
Definition of Upper Boundary: Upper boundary of amphibolitic material in partly graphitic semipelite and pelite sequence of the Glenbuchat Graphitic Schist Formation.
Thickness: 75 - 205m
Geographical Limits: Stretches from the Tomintoul Old Red Sandstone outlier via Muckle Fergie Burn and Inchmore (Delnadamph) to Clach Choutsaich and Brown Cow Hill (Glen Gairn Granite).
Parent Unit: Glenbuchat Graphitic Schist Formation (GLGS)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Reference Section  Allt Veannaich - Duiveoir Burn section between Torran Deallaig and the Leitir (Delnadamph Estate). 
Type Section  Muckle Fergie Burn for 500m west of junction of Meur a' Chois and Meur an Loin. 
Memoir of the British Geological Survey, Sheet 75, in preparation. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: