The BGS Lexicon of Named Rock Units — Result Details

Little Hangman Member

Computer Code: LHS Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Eifelian Age (DI) — Eifelian Age (DI)
Lithological Description: Grey heterolithic beds, dominantly fissile silty mudstone ("shale") and siltstone, alternating with cross-bedded, fine-grained sandstone.
Definition of Lower Boundary: Basal unit of 1m-thick bed with Myalina rests on rocks of the Sherrycombe Member (q.v.).
Definition of Upper Boundary: Probably a transitional conformable junction with rocks of the Ilfracombe Slates Formation (q.v.); commonly faulted.
Thickness: c.100m
Geographical Limits: North Devon - west Somerset.
Parent Unit: Hangman Sandstone Formation (HASA)
Previous Name(s): Little Hangman Sandstones (-4761)
Stringocephalus Beds (STRB)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Eastern end of Wild Pear Beach, near Combe Martin, North Devon. 
Reference(s):
Tunbridge, I P. 1978. North Devon - Lower and Middle Devonian: Hangman Sandstone Group. 9-13 in Scrutton, C T (Editor), A field guide to selected areas of the Devonian of south-west England. International Symposium on the Devonian System. (PADS 78). (Palaeontological Association). 
Lane, R. 1965. The Hangman Grits - an introduction and stratigraphy. Proceedings of the Ussher Society, Vol.1, 166-167. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable