Churston Cove / Churston Point
Designations: Proposed CGS/RIGS
GCR block / key theme: Marine Devonian
Associated SSSI: Not applicable
Geological / geomorphological features: [Provisional] Cliff and foreshore exposures between Churston Cove and Broad Sands show a thrust-bounded section through the Churston Member (Frasnian), the highest division of the Berry Head Limestone Formation and constitute the stratotype for the unit. Slaty mudstones interbedded with thinly bedded crinoidal limestones and tuffs pass upwards into medium to massive bedded stromatoporoid rich limestones, in part dolomitised.
Reasons for proposal as a RIGS sites: The area is of regional stratigraphical importance as the type locality of the Churston Member of the Brixham Limestone Formation, and makes the final stages of carbonate sedimentation on the Brixham High. Accessibility gives the site educational value, especially when studied in association with the lower part of the sequence of the Brixham High, within the Sharkham Point to Berry Head CGS (proposed). [Brixham High: Brixham Limestone Formation (including Churston Member)]