The BGS Lexicon of Named Rock Units — Result Details

Oakswood Conglomerate Member

Computer Code: YWOC Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Ediacaran Period (AD) — Ediacaran Period (AD)
Lithological Description: A coarse volcaniclastic conglomerate, containing pebbles of purple rhyolite, felsite and quartzite.
Definition of Lower Boundary: Taken at the transition from coarse sandstones into conglomerate within the Bayston-Oakswood Formation; about 270 m of these sandstones separate the conglomerate from the underlying Radlith Conglomerate.
Definition of Upper Boundary: Taken at the transition from conglomerate into coarse sandstones of the Bayston-Oakswood Formation.
Thickness: 60 m thick.
Geographical Limits: Welsh Borders, specifically Sheet 152 (Shrewsbury). Disappears beneath younger strata southwest of type area, yet may pass laterally into sandstones of the Bayston-Oakswood Formation to the northeast.
Parent Unit: Bayston-Oakswood Formation (BAGP)
Previous Name(s): Oakswood Conglomerate (-1294)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Crags in Oaks Wood. Pocock R W, et al, 1938 
Reference(s):
Greig D C, Wright, J E, Hains, B A and Mitchell, G H. 1968. Geology of the country around Church Stretton, Craven Arms, Wenlock Edge and Brown Clee. Memoir of the Geological Survey, Sheet 166 (England and Wales). (London: H.M.S.O.). 379pp. 
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.). 
Lapworth C and Watts W W. 1910. Shropshire. 739-769 in Geology in the field; the Jubilee Volume of the Geologists' Association (1858-1908). Monckton H W and Herries R S (editors). (London: Edward Stanford). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E152