Gloucestershire Geology Trust


Home
>	Latest News
>	Membership
>	The Geological Records Centre
>	The Geology Trusts
Huntley Quarry Geology Reserve
>	Huntley Reserve Education Material
Cotswold Hills Geopark

>	Daglingworth Quarry
Gloucestershire Geodiversity
>	Gloucestershire Geodiversity Sites Map
>	Gloucestershire Stratigraphy
>	Geodiversity Sites 'A-List'
>	Forest of Dean Geology
>	Cotswold Geology
>	Severn Vale Geology
>	Current Projects
>	Past Projects
Guides & Publications
Diary
Learning & Discovery
>	Courses
>	Links
Sponsors & Supporters
Contact Us
>	How to find us

St Maughan's

Early Devonian (Lochkovian)

PERIOD	GROUP	FORMATION
Devonian	Old Red Sandstone	St. Maughan's

Lithology
Interbedded purple, brown and green sandstones and red mudstones with intraformational conglomerates containing calcrete clasts.

Upper Boundary
At base of Brownstones, where sandstone-dominated sequences begin. .

Lower Boundary
Placed at top of Bishop's Frome ('Psammosteus') Limestone Member of the Raglan Mudstone Formation.

Representative Sites
No Accessible SItes
(M50 Motorway cuttings provide best exposures)

Information on lithology and boundaries taken from the British Geological Survey Lexicon of Named Rock Units
and BGS Memoirs.