The BGS Lexicon of Named Rock Units — Result Details
Hall Carleton Formation
| Computer Code: | HALC | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Devensian Stage (QD) — Holocene Epoch (QH) | ||
| Lithological Description: | Generally a fining upward sequence of medium- to fine-grained pale brown sand with interlaminations of silt that passes upwards into mottled olive clay and silt with thin beds and partings of peat and peaty (humic) silt. These fine-grained sediments contain microfossil assemblages indicating deposition in marine, estuarine and brackish water since deglaciation. It also includes sand and gravel forming Holocene raised beaches. | ||
| Definition of Lower Boundary: | Unconformable on all older glacial diamictons and glaciofluvial sand and gravel deposits. In its type area it overlies diamictons of the Gosforth Glaciogenic Formation. | ||
| Definition of Upper Boundary: | The ground surface or overlain by blown sand of the Drigg Point Sand Formation. | ||
| Thickness: | Typically c.3-6m, but 14m thick in BGS/Nirex borehole QBX 2-A (BGS Registered borehole SD09NE 22). | ||
| Geographical Limits: | Coastal zone of 1:50k Sheet 37 Gosforth, around western Cumbria (but could be applied to all Holocene to Lateglacial raised marine and estuarine deposits and raised beaches of the Cumbria and Lancashire coastal area). | ||
| Parent Unit: | British Coastal Deposits Group (COAS) | ||
| Previous Name(s): | Older storm beach deposits
(OSTB)
Marine warp [Obsolete Name and Code: Use HALC] (-3453) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Partial Type Section | 0.99m to 2.32m depth Nirex Hall Carleton piston-cored borehole. (BGS Registered borehole SD09NE 32). Nirex Science Report SA/97/038 (Issue 2.0). 1997. | ||
| Type Area | Ground lying below 10m AOD on eastern side of the lower course of River Irt, immediately southeast of Hall Carleton Farm (c.1.5km southeast of Drigg village), west Cumbria. Nirex Science Report SA/97/038 (Issue 2.0). 1997. | ||
| Partial Type Section | From 1.40 to 14m depth in BGS/Nirex borehole QBH 20A (BGS Registered borehole SD08NE 22). Nirex Science Report SA/97/043 (Issue 2.0). 1997. | ||
| Reference(s): | |||
| Nirex Science Report SA/97/038 (Issue 2.0). 1997. Field investigation, chronology, provenance, mineralogy, petrology, geochemistry and micropalaeontology of Quaternary sediments in the Sellafield area. | |||
| Auton, C A, Alexander, S A, Eaton, G P, McMillan, A A, Skinner, A C, and Wealthall, G P. 1997. Logging and interpretation of Quaternary boreholes (QBH) drilled in the Sellafield area during 1966. Nirex Science Report SA/97/043 (Issue 2.0). | |||
| Auton, C A, and Merritt, J W. 2004. Geological summary report: A review of onshore evidence of late glacial and Holocene sea level change in the St Bees-Sellafield area. British Geological Survey Report EE03_0870 for Halcrow H and S Limited. 49pp. | |||
| Auton, C A. 1995. An investigation of the Quaternary sequence at Hall Carleton, near Drigg, west Cumbria. British Geological Survey Technical Report WA/95/65C. 18pp. | |||
| Nirex Science Report SA/97/044 (Issue 2.0) 1998. Analytical studies of the provenance, micropalaeontology and chronology, of Quaternary sediments from the Sellafield area, 1996. | |||
| Akhurst, M C, Chadwick, R A, Holliday, D W, McCormac, M, McMillan, A A, Millward, D, Young, B, Ambrose, K, Auton, C A, Barclay, W J, Barnes, R P, Beddoe-Stephens, B, James, J C W, Johnson, H, Jones, N S, Glover, B W, Hawkins, M P, Kimbell, G S, MacPherson, K A T, Merritt, J W, Milodowski, A E, Riley, N J, Robins, N S, Stone, P, and Wingfield, R T R. 1997. The geology of the west Cumbria district. Memoir of the British Geological Survey, Sheets 28, 37 and 47 (England and Wales). 138pp. | |||
| Merritt, J W and Auton, C A. 1997. Quaternary lithostratigraphy of the Sellafield district. Nirex Science Report SA/97/045 (Issue 2.0). [Report prepared for UK Nirex Ltd. 69pp, 5 tables, 20 figures, 14 enclosures and one appendix.] | |||
| Merrit, J W and Auton, C A. 2000. An outline of the lithostratigraphy and depositional history of Quaternary deposits in the Sellafield district, west Cumbria. Proceedings of the Yorkshire Geological Society, Vol.53, 129-154 | |||
| Trotter, F M, Hollingworth, S E, Eastwood T and Rose, W C C. 1937. Gosforth District. Geological Survey Memoir, England and Wales, Sheet 37. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| none recorded or not applicable | |||