The BGS Lexicon of Named Rock Units — Result Details
Catterline Conglomerate Formation
Computer Code: | CATC | Preferred Map Code: | CATC |
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Status Code: | Full | ||
Age range: | Lochkovian Age (DO) — Pragian Age (DP) | ||
Lithological Description: | A bimodal, clast-supported conglomerate with clasts mainly of lava, but also containing psammite, quartzite, vein-quartz and feldspar porphyry in a medium-grained lithic sandstone matrix, with single flows of andesite and three sandstone members. | ||
Definition of Lower Boundary: | Conformable upon the eroded top of the highest lava flow of the Crawton Volcanic Formation. | ||
Definition of Upper Boundary: | Conformable and diachronous, north and south of the Bervie Bay Fault. The formation passes laterally westwards and northwards into the lavas of the Montrose Volcanic Formation. | ||
Thickness: | From 870 m to 1080 m thick, Carroll 1995a. | ||
Geographical Limits: | From Gourdon to Stonehaven. | ||
Parent Unit: | Arbuthnott-Garvock Group (ATGK) | ||
Previous Name(s): | Johnshaven and Rouen Formations [Obsolete Name and Code: Use CATC]
(-3903)
Chapel Den Conglomerate Formation [Obsolete Name And Code: See CATC] (CDC) Johnshaven Formation [Obsolete Name And Code: See CATC] (JNF) Braidon Bay Conglomerate Member [Obsolete Name And Code: See CATC] (BBCO) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Partial Type Section | Foreshore and cliffs form Crawton Bay[NO 8775 7962] to Whistleberry. | ||
Reference(s): | |||
Carroll, S. 1994. Geology of the Inverbervie and Catterline district, 1:10 000 sheets NO87NW, NO87NE and NO87SW. British Geological Survey, Technical Report, WA/94/20. | |||
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 | |||
Browne, M A E, Smith, R A and Aitken, A M. 2001. A lithostratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. Version 3. British Geological Survey Research Report RR/01/04. | |||
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. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
S067 S066 |