The BGS Lexicon of Named Rock Units — Result Details

Hadley Formation [Obsolete Name And Code: See ETM]

Computer Code: HD Preferred Map Code: notEntered
Status Code: Index Level
Age range: Duckmantian Substage (CB) — Bolsovian Substage (CC)
Lithological Description: none recorded or not applicable
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: Coalbrookdale (Hamblin and Coppack, 1995).
Parent Unit: Not Entered (?)
Previous Name(s): none recorded or not applicable
Alternative Name(s): Etruria Formation
Stratotypes:
none recorded or not applicable
Reference(s):
Powell, J H, Chisholm, JI, Bridge, D M, Rees, J G, Glover, B W and Besly, B M. 1999. Stratigraphical framework for Westphalian to Early Permian red-bed successions of the Pennine Basin. British Geological Survey Technical Report WA/99/10. 
Hamblin, R J O and Coppack, B C, 1995. Geology of Telford and the Coalbrookdale Coalfield. Memoir of the British Geological Survey, parts of Sheets 152 and 153 (England and Wales). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E152 E153