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Geology Of Wales
The geology of Wales is complex and varied; its study has been of considerable historical significance in the development of geology as a science. All geological periods from the Cryogenian (late Precambrian) to the Jurassic are represented at outcrop, whilst younger sedimentary rocks occur beneath the seas immediately off the Welsh coast. The effects of two mountain-building episodes have left their mark in the faulting and folding of much of the Palaeozoic rock sequence. Superficial deposits and landforms created during the present Quaternary period by water and ice are also plentiful and contribute to a remarkably diverse landscape of mountains, hills and coastal plains. Wales' modern character derives in substantial part from the exploitation of its diverse mineral wealth; slate in Snowdonia, coal in the South Wales Valleys and metal ores in Anglesey and mid Wales, to name but three. Wales' geology influences farming practices and building stone choices but also plannin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Map Wales & SW England EN
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metal Mining In Wales
Mining in Wales provided a significant source of income to the economy of Wales throughout the nineteenth century and early twentieth century. It was key to the Industrial Revolution. Wales was famous for its coal mining, in the Rhondda Valley, the South Wales Valleys and throughout the South Wales coalfield and by 1913 Barry had become the largest coal exporting port in the world, with Cardiff as second, as coal was transported down by rail. Northeast Wales also had its own coalfield and Tower Colliery (closed January 2008) near Hirwaun is regarded by many as the oldest open coal mine and one of the largest in the world. Wales has also had a significant history of mining for slate, gold and various metal ores. History There had been small-scale mining in Wales in the pre-Roman British Iron Age, but it would be undertaken on an industrial scale under the Romans, who completed their conquest of Wales in AD 78. Substantial quantities of gold, copper, and lead were extracted, al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adam Sedgwick
Adam Sedgwick (; 22 March 1785 – 27 January 1873) was a British geologist and Anglican priest, one of the founders of modern geology. He proposed the Cambrian and Devonian period of the geological timescale. Based on work which he did on Welsh rock strata, he proposed the Cambrian period in 1835, in a joint publication in which Roderick Murchison also proposed the Silurian period. Later in 1840, to resolve what later became known as the Great Devonian Controversy about rocks near the boundary between the Silurian and Carboniferous periods, he and Murchison proposed the Devonian period. Though he had guided the young Charles Darwin in his early study of geology and continued to be on friendly terms, Sedgwick was an opponent of Darwin's theory of evolution by means of natural selection. He strongly opposed the admission of women to the University of Cambridge, in one conversation describing aspiring female students as "nasty forward minxes." Life and career Sedgwick was b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roderick Murchison
Sir Roderick Impey Murchison, 1st Baronet, (19 February 1792 – 22 October 1871) was a Scotland, Scottish geologist who served as director-general of the British Geological Survey from 1855 until his death in 1871. He is noted for investigating and describing the Silurian, Devonian and Permian systems. Early life and work Murchison was born at Tarradale Castle, Tarradale House, Muir of Ord, Ross-shire, the son of Barbara and Kenneth Murchison. His wealthy father died in 1796, when Roderick was four years old, and he was sent to Durham School three years later, and then the Royal Military College, Great Marlow to be trained for the army. In 1808 he landed with Arthur Wellesley, 1st Duke of Wellington, Wellesley in Portugal, and was present at the actions of Battle of Roliça, Roliça and Battle of Vimeiro, Vimeiro in the Peninsular War as an ensign in the 36th (Herefordshire) Regiment of Foot, 36th Regt of Foot. Subsequently under Sir John Moore (British Army officer), John Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neath
Neath (; cy, Castell-nedd) is a market town and Community (Wales), community situated in the Neath Port Talbot, Neath Port Talbot County Borough, Wales. The town had a population of 50,658 in 2011. The community of the parish of Neath had a population of 19,258 in 2011. Historic counties of Wales, Historically in Glamorgan, the town is located on the River Neath, east-northeast of Swansea. Etymology The town's English name ultimately derives from "" the original Welsh name for the River Neath and is known to be Proto-Celtic language, Celtic or Pre-Celtic. A meaning of 'shining' or 'brilliant' has been suggested, as has a link to the older Indo-European root ' (simply meaning 'river'). As such, the town may share its etymology with the town of Stratton, Cornwall and the River Nidd in Northern England. History Roman fort The town is located at a ford (crossing), ford of the River Neath and its strategic situation is evident by a number of Celts, Celtic hill forts, surrounding ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal Measures
In lithostratigraphy, the coal measures are the coal-bearing part of the Upper Carboniferous System. In the United Kingdom, the Coal Measures Group consists of the Upper Coal Measures Formation, the Middle Coal Measures Formation and the Lower Coal Measures Formation. The group records the deposition of fluvio-deltaic sediments which consists mainly of clastic rocks (claystones, shales, siltstones, sandstones, conglomerates) interstratified with the beds of coal. In most places, the coal measures are underlain by coarser clastic sequences known as Millstone Grit, of Namurian age. The top of the coal measures may be marked by an unconformity, the overlying rocks being Permian or later in age. In some parts of Britain, however, the coal measures grade up into mainly coal-barren red beds of late Westphalian and possibly Stephanian age. Within the Pennine Basin these barren measures are now referred to as the Warwickshire Group, from the district where they achieve their thickest d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Owen Of Henllys
George Owen of Henllys (1552 – 26 August 1613) was a Welsh antiquarian, author, and naturalist. Early life George Owen was the eldest son born to Elizabeth Herbert and William Owen in Henllys of the parish of Nevern, near Newport, Pembrokeshire. William Owen ( 1486–1574) was a successful Welsh lawyer who purchased the Lordship of Kemys. Following his father's death, he inherited the estate. Lordship of Kemys George Owen was educated in law at the Inns of Court in London. He spent considerable time fighting a series of lawsuits against family enemies in the county over ownership of manorial franchises. Wales historian During his life span he collected antiquarian information about Wales, including the heraldry, genealogy and historical buildings and structures. He also studied the topography of the county of Pembrokeshire and other parts of Wales. During his studies he performed observations of the geology of Wales, including the strata of limestone and coal. Although he d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newport, Wales
Newport ( cy, Casnewydd; ) is a city and Local government in Wales#Principal areas, county borough in Wales, situated on the River Usk close to its confluence with the Severn Estuary, northeast of Cardiff. With a population of 145,700 at the 2011 census, Newport is the third-largest authority with City status in the United Kingdom, city status in Wales, and seventh List of Welsh principal areas, most populous overall. Newport became a unitary authority in 1996 and forms part of the Cardiff-Newport metropolitan area. Newport was the site of the last large-scale armed insurrection in Great Britain, the Newport Rising of 1839. Newport has been a port since medieval times when the first Newport Castle was built by the Normans. The town outgrew the earlier Roman Britain, Roman town of Caerleon, immediately upstream and now part of the borough. Newport gained its first Municipal charter, charter in 1314. It grew significantly in the 19th century when its port became the focus of Coa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giraldus Cambrensis
Gerald of Wales ( la, Giraldus Cambrensis; cy, Gerallt Gymro; french: Gerald de Barri; ) was a Cambro-Norman priest and historian. As a royal clerk to the king and two archbishops, he travelled widely and wrote extensively. He studied and taught in France and visited Rome several times, meeting the Pope. He was nominated for several bishoprics but turned them down in the hope of becoming Bishop of St Davids, but was unsuccessful despite considerable support. His final post was as Archdeacon of Brecon, from which he retired to academic study for the remainder of his life. Much of his writing survives. Life Early life Born at Manorbier Castle in Pembrokeshire, Wales, Gerald was of mixed Norman and Welsh descent. Gerald was the youngest son of William Fitz Odo de Barry (or Barri), the common ancestor of the De Barry family of Ireland, a retainer of Arnulf de Montgomery and Gerald de Windsor, and one of the most powerful Anglo-Norman barons in Wales. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of South Wales
South Wales is an area with many features of outstanding interest to geologists, who have for long used the area for University field trips. This varied and accessible region has provided a written record of geological interest that dates to the 12th century, when Giraldus Cambrensis noted pyritous shales near Newport. Some of the first published representations of fossils were of fossil plants from coal measures near Neath (Gibson late 17th century). The British geologists Adam Sedgwick and Roderick Murchison did fundamentally important work in South Wales on Old Red Sandstone and the underlying rocks. The first volume of memoirs (1846) published by the Geological Survey contained a conspectus of the geology of South Wales that set a template for all future work. Significant discoveries continue to be made. For instance, in Carmarthenshire, in the late 1970s, John Cope detected a small area of Precambrian and Cambrian rocks. Other parts of South Wales, however, have n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
