The BGS Lexicon of Named Rock Units — Result Details

Overwood Slate Member

Computer Code: OVSL Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Famennian Age (DA) — Famennian Age (DA)
Lithological Description: Greenish grey silty slate.
Definition of Lower Boundary: Thrust fault.
Definition of Upper Boundary: Thrust fault.
Thickness: Not known.
Geographical Limits: West Devon.
Parent Unit: Liddaton Formation (LIDN)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Exposures to the north of Lifton and Liftondown, and west of Lydford. 
Reference(s):
British Geological Survey, 1993. Tavistock. England and Wales Sheet 337. Solid and Drift 1:50 000 Provisional Series (Keyworth, Nottingham: British Geological Survey). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable