The BGS Lexicon of Named Rock Units — Result Details

Upper Comley Group [Obsolete Name And Code: Use UCSS]

Computer Code: UCMG Preferred Map Code: notEntered
Status Code: Index Level
Age range: St David's Series (ED) — St David's Series (ED)
Lithological Description: Conglomeratic and glauconitic grits, green and brown sandstones, micaceous and blue-brown shales, conglomerate, with calcareous and phosphatic deposits.
Definition of Lower Boundary: Drawn at base of conglomerate of Quarry Ridge Grit of Upper Comley Group which rests unconformably on the black limestone of the Lower Comley Group.
Definition of Upper Boundary: Drawn at conformable upward passage from coarse glauconitic gritty flags of the Shoot Rough Road Flags to blue-grey micaceous shales of the Shoot Rough Road Shales.
Thickness: 90-210m approx.
Geographical Limits: Shropshire.
Parent Unit: Not Entered (?)
Previous Name(s): Upper Comley Limestone And Sandstone (-1885)
Upper Comley Series (-1886)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Comley, Shropshire. 
Type Area  Lawley, Shropshire. 
Type Area  Wrekin, Shropshire. 
Reference(s):
Cobbold, E S. 1921. The Cambrian horizons of Comley, Shropshire. Quarterly Journal of the Geological Society of London, Vol.76. 
Cobbold, E S. 1909. On some excavations in the Cambrian rocks of Comley, Shropshire, 1907. Report of the British Association (for 1908), 231-242. 
Robertson, T. "In" Pocock, R W and others. 1938. Shrewsbury. Memoir of the Geological Survey of Great Britain, Sheet 61. 
Cobbold, E S. 1911. Third report on excavations among the Cambrian rocks of Comley, Shropshire, 1909. Report of the British Association (for 1910), 113-122. 
Lapworth, C. 1891. On Olenellus callavei and its geological relationships. Geological Magazine, Vol.8, 532-533. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable