The BGS Lexicon of Named Rock Units — Result Details
Drummore Gravel Formation
Computer Code: | DRGR | Preferred Map Code: | DrGr |
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Status Code: | Full | ||
Age range: | Anglian Stage (QA) — Wolstonian Stage (QO) | ||
Lithological Description: | Clayey, sandy, gravelly diamicton containing abundant clasts of sandstone. Distinctly weathered. | ||
Definition of Lower Boundary: | Sharp, with Cassie Till Formation. | ||
Definition of Upper Boundary: | Unconformable, glacitectonic, with Clava Lodge Clay Member of the Clava Shelly Formation. | ||
Thickness: | 4.6m | ||
Geographical Limits: | Sheet NH 74SE. | ||
Parent Unit: | Inverness (Albion) Glacigenic Subgroup (IAG) | ||
Previous Name(s): | Coarse gravel and sand [Obsolete Name and Code: Use DRGR]
(-3372)
Drummore Gravel Member [Obsolete Name and Code: Use DRGR] (-1515) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Partial Type Section | River cliff of Finglack Burn. Section NH74SE E1 on "standard" map."Finglack Section" of Merritt (1990). | ||
Partial Type Section | "Main Pit" composite section of Horne and others, (1894), including their Boreholes 1 and 3. Section in former clay pit by Cassie Burn, excavated by Horne, and others (1894). Section NH74SE E5 on "standard" map. | ||
Reference(s): | |||
Horne, J and others, 1894. The character of the high-level shell-bearing deposits at Clava, Chapelhall and other localities. Report of the British Association for the Advancement of Science for 1883, p.483-514. | |||
Fletcher, T P et al. 1996. Geology of the Fortrose and eastern Inverness district. Memoir of the British Geological Survey, Sheet 84W (Scotland). | |||
Merritt, J W, 1990. The lithostratigraphy at Clava, Inverness-shire and a new model for the origin of its shell-bearing deposits as glacially-transported allochthons. "In" Auton, C A, Firth, C R and Merritt, J W. (Editors). Beauly to Nairn: Field Guide. Quaternary Research Association, Cambridge. | |||
Peacock, J D, 1975. Depositional environment of glacial deposits at Clava, north-east Scotland. Bulletin of the Geological Survey of Great Britain, No.49. 31-37. | |||
Merritt, J W 1992. The high-level marine shell-bearing deposits of Clava, Inverness-shire, and their origin as glacial rafts. Quaternary Science Reviews, Vol.11, 759-777. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
S084 |