The BGS Lexicon of Named Rock Units — Result Details
Corsend Gelifluctate Bed
| Computer Code: | CSEND | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Devensian Stage (QD) — Devensian Stage (QD) | ||
| Lithological Description: | Gravelly sandy silt diamicton. Crudely bedded, brown, matrix supported, non-calcareous. Clasts are typically angular to subangular. Clast lithologies are dominated by felsite with lesser amounts of quartzitic and psammitic metasediments, basic igneous rocks, red stained quartzites, red-brown sandstone, grey granite and pelitic metasediments. In thin section silt droplet fabrics have been recorded indicating incipient pedogenesis under cold climate conditions. A truncated ice-wedge cast has also been recorded descending from the upper surface of this deposit into the Rottenhill Till Formation beneath. Interpreted as a periglacial gelifluctate. | ||
| Definition of Lower Boundary: | The lower boundary of the bed is a planar, subhorizontal erosion surface truncating weathered diamicton of the Fernieslack Palaeosol Bed/Rottenhill Till Formation. | ||
| Definition of Upper Boundary: | The upper boundary of the bed is a planar, subhorizontal erosion surface overlain either by black clayey diamicton of the Corse Diamicton Formation or brown diamicton of the Hythie Till Formation. | ||
| Thickness: | To 0.80m | ||
| Geographical Limits: | Buchan, northeast Scotland. The bed is only known within the immediate vicinity of Kirkhill Quarry (infilled) (centred on NK 0120 5285) on Sheet 87W (Ellon). | ||
| Parent Unit: | Rottenhill Till Formation (ROTIL) | ||
| Previous Name(s): | Corsend Gelifluctate Bed
(CSEND)
Kirkhill Gelifluctate Complex 3 [Obsolete Name and Code: Use CHLGE, CSEND] (-4537) Kirkhill Head 3 [Obsolete Name and Code: Use CSEND] (-169) Corsend Member, Kirkhill Formation [Obsolete Name and Code: Use CSEND] (-2126) Kirkhill Gelifluctate 4 [Obsolete Name and Code: Use CSEND] (-2127) Corsend Gelifluctate Bed (CSEND) Kirkhill Gelifluctate Complex 4 (-823) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Partial Type Section | North face, Kirkhill Quarry (infilled,) 7km southeast of Stricken, northeast Scotland. In this face the bed is overlain by the Corse Diamicton Formation. Connell, Hall and Romans. 1984. | ||
| Partial Type Section | East face, Kirkhill Quarry (infilled), 7km southeast of Stricken, northeast Scotland. In this face the bed is overlain by the Hythie Till Formation. Connell, Hall and Romans,. 1984. | ||
| Reference(s): | |||
| Connell, E R and Hall, A M. 2000. Kirkhill and Leys quarries. 65-67 in Merritt, J W, Connell, E R and Bridgland, D R (editors), The Quaternary of the Banffshire Coast and Buchan: Field Guide. (London: Quaternary Research Association.) | |||
| Connell, E R, Edwards, K J and Hall, A M. 1982. Evidence for two pre-Flandrian palaeosols in Buchan, Scotland. Nature, 297, 570-572. | |||
| Connell, E R and Hall, A M. 1987. The periglacial history of Buchan, Scotland. 277-285 in Boardman, J (Editor), Periglacial Processes and Landforms in Britain and Ireland. Periglacial processes in Britain and Ireland. Cambridge University Press, Cambridge. | |||
| Connell, E R, Hall, A M and Romans, J C C. 1984. Kirkhill Quarry. 57-81 in Hall, A M (Editor), Buchan Field Guide. (Cambridge: Quaternary Research Association.) | |||
| Hall, A M and Connell, E R. 1991. The glacial deposits of Buchan, northeast Scotland. 129-136 in Ehlers, J, Gibbard, P L and Rose, J (editors), Glacial Deposits in Great Britain and Ireland. (Rotterdam: Balkema.) | |||
| Hall, A M and Jarvis, J. 1993. Kirkhill. 225-230 in Gordon, J E and Sutherland, D G (editors), Quaternary of Scotland. Geological Conservation Review Series: 6. (London: Chapman and Hall.) | |||
| Merritt, J W, Connell, E R and Bridgland, D R (editors). 2000. The Quaternary of the Banffshire Coast and Buchan; Field Guide. (London: Quaternary Research Association.) | |||
| Sutherland, D G. 1999. Scotland. 99-114 in Bowen D Q (Editor), A revised correlation of Quaternary deposits in the British Isles. Special Report of The Geological Society of London, No.23. | |||
| Merritt, J W, Auton, C A, Connell, E R, Hall, A M and Peacock, J D. 2003. The Cainozoic geology and landscape evolution of north-east Scotland. Memoir of the British Geological Survey, Sheets 66E, 67, 76E, 77, 86E, 87W, 87E, 95, 96W, 96E and 97 (Scotland) | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| none recorded or not applicable | |||