The BGS Lexicon of Named Rock Units — Result Details

Oakeley Mynd Formation

Computer Code: OAK Preferred Map Code: OAK
Status Code: Full
Age range: Gorstian Age (SG) — Gorstian Age (SG)
Lithological Description: Mudstones, bedding-fissile with much graptolitic hemipelagite and thin siltstone laminae.
Definition of Lower Boundary: Passage from underlying Aston Mudstones - trench: (SO 3494 8817) to (SO 3481 8810).
Definition of Upper Boundary: Overlain by Bailey Hill Formation.
Thickness: 0-180m
Geographical Limits: Eastern environs of Bishops Castle.
Parent Unit: Not Applicable (-)
Previous Name(s): Lower Ludlow Graptolitic Shales (-4060)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Old quarry, 250m east of Oakley House, Bishops Castle, Shropshire. 
Reference Section  Track section c.100m south of Oakley House. 
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E165