The BGS Lexicon of Named Rock Units — Result Details

Drigg Moorside Silt Member

Computer Code: DGMS Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Thinly interbedded sequence of brown silty clay, clayey silt, very fine-grained sand and yellow brown fine- to medium-grained sands. Some beds of clay contain granules and fine pebbles.
Definition of Lower Boundary: Generally conformable on the Fishgarth Wood Till Member of the Gosforth Glacigenic Formation.
Definition of Upper Boundary: Unconformably overlain by Holocene deposits such as blown sand and peats.
Thickness: 8.6m thick at its type section.
Geographical Limits: 1:50k Sheet 47 Gosforth, Drigg area, western Cumbria.
Parent Unit: Gosforth Glacigenic Formation (GOGL)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Drigg Landfill Site, which extends 1.5km northwest of Drigg village, Cumbria. Nirex Science Report SA/97/045 (Issue 2.0), 1997 
Type Section  BNFL Drigg Offsite Borehole C. 1.2km southwest of Drigg village, Cumbria. Nirex Science Report SA/97/045 (Issue 2.0), 1997. 
Reference(s):
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.] 
Trotter, F M, Hollingworth, S E, Eastwood T and Rose, W C C. 1937. Gosforth District. Geological Survey Memoir, England and Wales, Sheet 37. 
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 
Merritt, J W, Auton, C A, Browne, M A E, Neilson, G and McMillan, A A. 1995. Characterisation of the onshore Quaternary deposits around Sellafield, Cumbria, Phase II. Nirex Science Report 768. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable