The BGS Lexicon of Named Rock Units — Result Details

Strathfinella Hill Conglomerate Member

Computer Code: STHC Preferred Map Code: STHC
Status Code: Full
Age range: Emsian Age (DE) — Emsian Age (DE)
Lithological Description: A poorly sorted, clast-supported conglomerate with clasts of semi-pelite, psammite, quartzite, lava and feldspar porphyry in a medium-grained, lithic sandstone matrix.
Definition of Lower Boundary: A diachronous, gradational, conformable boundary, interfingering with and passing down into the Teith Sandstone Formation and the Cromlix Mudstone Formation, taken from where conglomerate becomes the predominant lithology in the upward sequence.
Definition of Upper Boundary: The top of the predominantly conglomerate member, below the overlying part of the Teith Formation.
Thickness: Up to 1700 m thick.
Geographical Limits: Strathfinella Hill [NO 6878].
Parent Unit: Teith Sandstone Formation (THF)
Previous Name(s): Gannochy Formation (-4633)
Strathfinella Hill Conglomerate Formation (-1845)
Alternative Name(s): Gannochy Conglomerate Formation
Stratotypes:
Partial Type Section  Garrold Wood, Strathfinella. 
Partial Type Section  Kirston's Den, Strathfinella Hill. 
Reference(s):
Geology of the Fettercairn area, 1:10000 sheets NO67NW, NO67NE, NO67SW, NO67SE and NO68SE (south of the Highland Boundary Fault) : part of 1:50000 sheets 66E (Banchory), 66W (Aboyne), 57W (Forfar) and 57E (Montrose): British Geological Survey, Onshore Geology Series, Technical report WA/95/91  
Armstrong, M and Paterson, I B, 1970. The Lower Old Red Sandstone of the Strathmore Region. Report of the Institute of Geological Sciences No.70/12 
Carroll, S, 1995. Geology of the Auchenblae District. British Geological Survey Technical Report. WA/95/80. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S066