The BGS Lexicon of Named Rock Units — Result Details

Drigg Holm Sand Member

Computer Code: DGHS Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Fine-to medium-grained sand with stringers of granule gravel and channels containing clast-supported gravel. The gravel comprises subangular to subrounded clasts of Skiddaw Group sandstones and siltstones, red and yellow sandstone, Borrowdale Volcanic Group rocks, granite, granophyre, coal and ironstone.
Definition of Lower Boundary: Generally undulating erosional contact on to Drigg Beach Till Member of the Gosforth Glacigenic Formation.
Definition of Upper Boundary: Sub horizontal planar unconformable (?locally glacitectonic) contact with the the base of the Fishgarth Wood Till Member of the Gosforth Glacigenic Formation.
Thickness: c. 2.5m - 3.5m
Geographical Limits: 1:50k Sheet 37 Gosforth. Seascale, Ravenglass and Lower Wasdale areas, Western Cumbria.
Parent Unit: Gosforth Glacigenic Formation (GOGL)
Previous Name(s): SHELLY SANDS AT 50FT OD
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Sea cliff at Drigg beach, 1.5km westsouthwest of Drigg village, Cumbria 
Reference Section  Sea cliff near Ravenglass, 700m southsoutheast of Ravenglass village, Cumbria. 
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable