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Menevian Group : ウィキペディア英語版 | Menevian Group
The Menevian Group is a Cambrian lithostratigraphic group (a sequence of rock strata) in west Wales. The name is derived from Menevia, the Roman name for the St Davids area north of St Brides Bay on Pembrokeshire’s west coast where the strata are well exposed in coastal cliffs. This rock succession has previously been known variously as the Menevian Series and Menevian Beds and largely ascribed to the British regional stratigraphic unit ''St David’s Epoch'', though these terms are now obsolete. ==Outcrops== The rock succession is exposed, along the coast southeast of St Davids and in particular at Solva where the outcrop, though largely concealed, continues inland. A cliff section at Porth y Rhaw west of Solva provides the type section. Further outcrops though less well exposed occur northeast of Newgale and again in the Wolf's Castle area.〔British Geological Survey 1:50,000 scale geological map (England & Wales) sheets 209 ''St David's'', 210 ''Fishguard''〕
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