The BGS Lexicon of Named Rock Units — Result Details

Dunnottar Castle Conglomerate Formation

Stratotypes:
Computer Code:	DRCC	Preferred Map Code:	DRCC
Status Code:	Full
Age range:	Silurian Period (S) — Early Devonian Epoch (DL)
Lithological Description:	A conglomerate with boulders up to 1m across, of mainly 'Highland' provenance, with interbedded sandstone lenses.
Definition of Lower Boundary:	At the base of the lowest bed of conglomerate of 'Highland' provenance overlying the Carron Sandstone Formation.
Definition of Upper Boundary:	The base of the lowest lava flow in the overlying Tremuda Bay Volcanic Formation.
Thickness:	From 2385 m to 2482 m thick, according to Carroll, 1995.
Geographical Limits:	Stonehaven area.
Parent Unit:	Dunnottar-Crawton Group (DRCR)
Previous Name(s):	Downie Point Conglomerate Formation [Obsolete Name and Code: Use DPCO, DRCC] (-4618) Strathlethan Sandstone Member (SNF) Castle Haven Conglomerate Member (CHAV)
Alternative Name(s):	none recorded or not applicable
Type Section	The coastal section south of Stonehaven, from Downie Point to Strabandra.
Reference(s):
Carroll, S. 1994. Geology of the Stonehaven District. 1:10 000 Sheets NO88NW, NO88NE, NO88SW and NO88SE. British Geological Survey Technical Report WA/94/19.
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.
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
Campbell, R. 1913. The geology of south-eastern Kincardineshire. Transactions of the Royal Society of Edinburgh, Vol. 48, 923-960.
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S067

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