The BGS Lexicon of Named Rock Units — Result Details

Fladen Member

Computer Code: WGDF Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Pleistocene Epoch (QP) — Pleistocene Epoch (QP)
Lithological Description: Moderately sorted sandy mud, intermediate-high plasticity, sporadic dropstones and rare shell fragments.
Definition of Lower Boundary: Underlain unconformably by an ice-scorned surface of Swatchway, Coal Pit and Fisher Formation.
Definition of Upper Boundary: Overlain conformably by Witch Member of Witch Ground Formation.
Thickness: 10 metres. Lateral variations up to 15 metres.
Geographical Limits: Not defined.
Parent Unit: Witch Ground Formation (WGD)
Previous Name(s): Lower Witch Ground Deposits (-605)
Fladen Deposits (-4396)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Holmes, R. 1977. Quaternary deposits of the central North Sea 5. The Quaternary geology of the UK sector of the North Sea between 56° and 58° N. Report of the Institute of Geological Sciences, No. 77/14. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable