Teign Valley Group
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Teign Valley Group
The Teign Valley Group is a late Devonian to late/middle Carboniferous lithostratigraphic group (a sequence of rock strata) in north Cornwall through Devon and into west Somerset in southwest England. The name is derived from the valley of the River Teign. The Group comprises (in ascending order i.e. oldest first) the Barras Nose, Trambley Cove, Teign Chert and Dowhills Mudstone formations. It also includes the Brendon and St Mellion formations whose stratigraphical context is unclear since all known boundaries of these two unit are tectonic. The Brendon Formation slates extend from Tavistock west to Bodmin Moor. The St Mellion Formation sandstones, siltsones and mudstones are found from Holne Holne is a village and civil parish on the southeastern slopes of Dartmoor in Devon, England. A community has existed here since at least the 11th century, and today a population of around 250 people is served by a church and a public house, the ... northeastwards. The Teign Valley Group ...
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Boscastle
Boscastle ( kw, Kastel Boterel) is a village and fishing port on the north coast of Cornwall, England, in the civil parish of Forrabury and Minster (where the 2011 Census population was included) . It is south of Bude and northeast of Tintagel. The harbour is a natural inlet protected by two stone harbour walls built in 1584 by Sir Richard Grenville and is the only significant harbour for along the coast. The village extends up the valleys of the River Valency and River Jordan, Cornwall, River Jordan. Heavy rainfall on 16 August 2004 caused extensive damage to the village. Boscastle lies within the Cornwall Area of Outstanding Natural Beauty (AONB). The South West Coast Path passes through the village. History Boscastle was first inhabited by the Bottreaux family around 1080, and the name of the village comes from Bottreaux Castle (pronounced "Botro"), a 12th-century motte-and-bailey fortress, of which few remains survive. The castle, built sometime between 1154 and 1189 ...
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Culm Supergroup
The Culm Measures are a thick sequence of geological strata originating during the Carboniferous Period that occur in south-west England, principally in Devon and Cornwall, now known as the Culm Supergroup. Its estimated thickness varies between 3600 m and 4750 m though intense folding complicates it at outcrop. They are so called because of the occasional presence in the Barnstaple–Hartland area of a soft, often lenticular, sooty coal, which is known in Devon as ''culm''. The word culm may be derived from the Old English word for coal ''col'' or from the Welsh word ''cwlwm'' meaning knot (due to the folding of the beds in which the coal is found). Most of the succession consists of shales and thin sandstones, but there are also occurrences of slate, limestone and chert. Culm grassland on the formation's slates and shales is composed of purple moor grass and rush pasture. It is noted for a wide diversity of species, some extremely rare including the marsh fritillary butterfly. So ...
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Devonian System Of Europe
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, where rocks from this period were first studied. The first significant adaptive radiation of life on dry land occurred during the Devonian. Free-sporing vascular plants began to spread across dry land, forming extensive forests which covered the continents. By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and hexapods also became well-established early in this period, after starting their expansion to land at least from the Ordovician period. Fish reached substantial diversity during this time, leading the Devonian to often be dubbed the Age of Fishes. The placoderms began dominating ...
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Carboniferous System Of Europe
The Carboniferous ( ) is a Period (geology), geologic period and System (stratigraphy), system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago (Myr, Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin ''wikt:carbo#Latin, carbō'' ("coal") and ''wikt:fero#Latin, ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare (geologist), William Conybeare and William Phillips (geologist), William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian (geology), Mississippian and the later Pennsylvanian (geology), Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Stegocephalia, Tetrapods ( ...
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Holne
Holne is a village and civil parish on the southeastern slopes of Dartmoor in Devon, England. A community has existed here since at least the 11th century, and today a population of around 250 people is served by a church and a public house, the Church House Inn. Village The Church of St Mary the Virgin was built circa 1300, and was enlarged early in the 16th century. Around this time a carved and painted rood screen was installed, together with a matching pulpit of unusual design. A hollow yew tree in the churchyard was thought to have been planted around 1300. Nearby is a prominent cross, with an octagonal cross section, which marks the grave of the Rev. John Gill, who was vicar of Holne from 1858 to 1917—his 90th year. The novelist and clergyman Charles Kingsley was born in the vicarage while his father was curate-in-charge here for a few months. Parish The eastern and northern boundaries of the parish are formed by the River Dart. To the west it is bordered by the parish o ...
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Bodmin Moor
Bodmin Moor ( kw, Goon Brenn) is a granite moorland in north-eastern Cornwall, England. It is in size, and dates from the Carboniferous period of geological history. It includes Brown Willy, the highest point in Cornwall, and Rough Tor, a slightly lower peak. Many of Cornwall's rivers have their sources here. It has been inhabited since at least the Neolithic era, when primitive farmers started clearing trees and farming the land. They left their megalithic monuments, hut circles and cairns, and the Bronze Age culture that followed left further cairns, and more stone circles and stone rows. By medieval and modern times, nearly all the forest was gone and livestock rearing predominated. The name Bodmin Moor is relatively recent. An early mention is in the ''Royal Cornwall Gazette'' of 28 November 1812. The upland area was formerly known as Fowey Moor after the River Fowey, which rises within it. Geology Bodmin Moor is one of five granite plutons in Cornwall that make up pa ...
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Tavistock
Tavistock ( ) is an ancient stannary and market town within West Devon, England. It is situated on the River Tavy from which its name derives. At the 2011 census the three electoral wards (North, South and South West) had a population of 13,028. It traces its recorded history back to at least 961 when Tavistock Abbey, whose ruins lie in the centre of the town, was founded. Its most famous son is Sir Francis Drake. History Middle Ages The area around Tavistock (formerly Tavistoke), where the River Tavy runs wide and shallow allowing it to be easily crossed, and near the secure high ground of Dartmoor, was inhabited long before historical records. The surrounding area is littered with archaeological remains from the Bronze Age, Bronze and Iron Ages and it is believed a Hamlet (place), hamlet existed on the site of the present town long before the town's official history began, with the founding of the Abbey. The abbey of Mary, the mother of Jesus, Saint Mary and Saint Rumon was ...
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England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain, which lies in the North Atlantic, and includes over 100 smaller islands, such as the Isles of Scilly and the Isle of Wight. The area now called England was first inhabited by modern humans during the Upper Paleolithic period, but takes its name from the Angles, a Germanic tribe deriving its name from the Anglia peninsula, who settled during the 5th and 6th centuries. England became a unified state in the 10th century and has had a significant cultural and legal impact on the wider world since the Age of Discovery, which began during the 15th century. The English language, the Anglican Church, and Engli ...
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Rock Strata
In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either '' bedding surfaces'' or ''bedding planes''.Salvador, A. ed., 1994. ''International stratigraphic guide: a guide to stratigraphic classification, terminology, and procedure. 2nd ed.'' Boulder, Colorado, The Geological Society of America, Inc., 215 pp. . Prior to the publication of the International Stratigraphic Guide, older publications have defined a stratum as either being either equivalent to a single bed or composed of a number of beds; as a layer greater than 1 cm in thickness and constituting a part of a bed; or a general term that includes both ''bed'' and ''lamina''.Neuendorf, K.K.E., Mehl, Jr., J.P., and Jackson, J.A. , eds., 2005. ''Glossary of Geology'' 5th ed. Alexandria, Virginia, American Geological Institute. 779 pp. . ...
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Group (stratigraphy)
In geology, a group is a lithostratigraphic unit consisting of a series of related formations that have been classified together to form a group. Formations are the fundamental unit of stratigraphy. Groups may sometimes be combined into supergroups. Groups are useful for showing relationships between formations, and they are also useful for small-scale mapping or for studying the stratigraphy of large regions. Geologists exploring a new area have sometimes defined groups when they believe the strata within the groups can be divided into formations during subsequent investigations of the area. It is possible for only some of the strata making up a group to be divided into formations. An example of a group is the Glen Canyon Group, which includes (in ascending order) the Wingate Sandstone, the Moenave Formation, the Kayenta Formation, and the Navajo Sandstone. Each of the formations can be distinguished from its neighbor by its lithology, but all were deposited in the same vast ...
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Lithostratigraphy
Lithostratigraphy is a sub-discipline of stratigraphy, the geological science associated with the study of strata or rock layers. Major focuses include geochronology, comparative geology, and petrology. In general, strata are primarily igneous or sedimentary relating to how the rock was formed. Sedimentary layers are laid down by deposition of sediment associated with weathering processes, decaying organic matter (biogenic) or through chemical precipitation. These layers are often distinguishable as having many fossils and are important for the study of biostratigraphy. Igneous layers occur as stacks of lava flows, layers of lava fragments (called tephra) both erupted onto the Earth's surface by volcanoes, and in layered intrusions formed deep underground. Igneous layers are generally devoid of fossils and represent magmatic or volcanic activity that occurred during the geologic history of an area. There are a number of principles that are used to explain the appearance of ...
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Somerset
( en, All The People of Somerset) , locator_map = , coordinates = , region = South West England , established_date = Ancient , established_by = , preceded_by = , origin = , lord_lieutenant_office =Lord Lieutenant of Somerset , lord_lieutenant_name = Mohammed Saddiq , high_sheriff_office =High Sheriff of Somerset , high_sheriff_name = Mrs Mary-Clare Rodwell (2020–21) , area_total_km2 = 4171 , area_total_rank = 7th , ethnicity = 98.5% White , county_council = , unitary_council = , government = , joint_committees = , admin_hq = Taunton , area_council_km2 = 3451 , area_council_rank = 10th , iso_code = GB-SOM , ons_code = 40 , gss_code = , nuts_code = UKK23 , districts_map = , districts_list = County council area: , MPs = * Rebecca Pow (C) * Wera Hobhouse ( LD) * Liam Fox (C) * David Warburton (C) * Marcus Fysh (C) * Ian Liddell-Grainger (C) * James Heappey (C) * Jacob Rees-Mogg (C) * John Penrose (C) , police = Avon and Somerset Police ...
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