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The Cornubian batholith is a large mass of granite rock, formed about 280 million years ago, which lies beneath much of Cornwall and Devon in the South West Peninsula of England. The main exposed masses of granite are seen at Dartmoor, Bodmin Moor, St Austell, Carnmenellis, Land's End and the Isles of Scilly.
The Cornubian Massif was an upland area and source of sediment in southwest England during parts of the Late Permian to Early Cretaceous period and through most of the Cenozoic. In extent it covered approximately the current area of Devon and Cornwall .
The geology of Cornwall, England, is dominated by its granite backbone, part of the Cornubian batholith, formed during the Variscan orogeny. Around this is an extensive metamorphic aureole (known locally as killas ) formed in the mainly Devonian slates that make up most of the rest of the county.
Gravity anomaly maps of the British Isles are interpreted as indicating the presence of granite plutons in the following areas. The list is not exhaustive: Galloway, UK; Cheviot Hills, UK; Mountains of Mourne, UK; Connemara, Ireland; County Donegal, Ireland; South West England (Cornubian batholith and Haig Fras granite), UK; Askrigg Block ...
South Downs; London-Brabant Massif; Cornubian batholith – Early Permian intrusion in the South West of England, forming moors where exposed at the surface, such as Dartmoor; Lizard Complex – a piece of obducted oceanic crust, (i.e. an Ophiolite). Iapetus Suture – line of closure of the Iapetus suture.
Cornwall (/ ˈ k ɔːr n w ɔː l,-w əl / ⓘ; [5] Cornish: Kernow [ˈkɛrnɔʊ] or [6]) is a ceremonial county in South West England. [7] It is recognised by Cornish and Celtic political groups as one of the Celtic nations, and is the homeland of the Cornish people.
Bodmin Moor is one of five granite plutons in Cornwall that make up part of the Cornubian batholith. [4] The intrusion dates from the Cisuralian epoch, the earliest part of the Permian period, and outcrops across about 190 square km. Around the pluton's margins where it intruded into slates, the country rock has been hornfelsed.
Regional profile of the South West in 2011 Population pyramid of the South West in 2020 At the 2021 census , the population of the South West region was 5,701,186 [ 121 ] It has long been one of the fastest-growing regions in England and its 2021 population had increased by 7.8% since 2011 (when it was 5,288,935), and by 15.7% over the 2001 ...