The BGS Lexicon of Named Rock Units — Result Details

Primrose Hill Metamorphic Complex

Computer Code: PRHM Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Cryogenian Period (AC) — Cryogenian Period (AC)
Lithological Description: Granitic and amphibolitic gneisses, altered tuffs, intrusive granite and pegmatite.
Definition of Lower Boundary: Unknown.
Definition of Upper Boundary: Unknown.
Thickness: Unknown.
Geographical Limits: The Wrekin, Shropshire and the Welsh Borderlands.
Parent Unit: Not Applicable (-)
Previous Name(s): Primrose Hill Gneisses (-1772)
Primrose Hill Granite (-4849)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Small crags on Little Hill, formerly Primrose Hill, at the southern end of the Wrekin Range. Wilson, D, 2000. 
Reference(s):
Pharaoh T C and Gibbons W. 1994. Precambrian rocks in England and Wales south of the Menai Strait Fault System. 85-97 in Gibbons W and Harris A L (editors), A revised correlation of Precambrian rocks in the British Isles. Geological Society of London Special Report No.22. 
Pocock R W, Whitehead T H, Wedd C B and Robertson T. 1938. Shrewsbury District including the Hanwood Coalfield. Memoir of the Geological Survey of Great Britain, England and Wales. (London: H.M.S.O.). 
Thorpe, R S, 1974. Aspects of magmatism and plate tectonics in the Precambrian of England and Wales. Geological Journal, Vol.9, 115-136. 
Wilson, D, 2000. Shropshire. 81-113 in Precambrian rocks of England and Wales. Carney, J N (editor). Geological Conservation Review Series No. 20. (Peterborough: Joint Nature Conservation Committee). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E152