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Portland Independent Top Whitbed
Portland Independent Top Whitbed is the variety of Portland stone used to build the Ashton Memorial in Lancaster. It originates from Independent quarries on the Isle of Portland, Dorset, England. See also *List of types of limestone This is a list of types of limestone arranged according to location. It includes both formal stratigraphic unit names and less formal designations. Africa Egypt *Tura limestone, used for the Great Pyramid casing stones *Mokattam limestone; Gr ... Limestone Independent Top Whitbed Geology of Dorset Jurassic Coast {{Petrology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portland Stone
Portland stone is a limestone from the Tithonian stage of the Jurassic period quarried on the Isle of Portland, Dorset. The quarries are cut in beds of white-grey limestone separated by chert beds. It has been used extensively as a building stone throughout the British Isles, notably in major public buildings in London such as St Paul's Cathedral and Buckingham Palace. Portland Stone is also exported to many countries—being used for example in the United Nations headquarters in New York City. Geology Portland Stone formed in a marine environment, on the floor of a shallow, warm, sub-tropical sea probably near land (as evidenced by fossilized driftwood, which is not uncommon). When seawater is warmed by the sun, its capacity to hold dissolved gas is reduced; consequently, dissolved carbon dioxide (CO2) is released into the atmosphere as a gas. Calcium and bicarbonate ions within the water are then able to combine, to form calcium carbonate (CaCO3) as a precipitate. The proces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashton Memorial
The Ashton Memorial is a folly in Williamson Park, Lancaster, Lancashire, England built between 1907 and 1909 by the millionaire industrialist Lord Ashton in memory of his second wife, Jessy, at a cost of £87,000 (equivalent to £ in ). Description At around 150 feet (50 m) tall, it dominates the Lancaster skyline and is visible for many miles around, and has views of the surrounding area including Morecambe Bay. The building is in the Edwardian Baroque style and was designed by John Belcher. It has been described as "England's grandest folly" and the "Taj Mahal of the North".Sparks (2003), p 36. The dome is externally of copper, the main stone used is Portland stone although the steps are of hard wearing granite from Cornwall. The external stonework is hung on a steel frame as found in modern buildings and only forms a weatherproof covering without being loadbearing. In recent times this steelwork has caused problems for the conservation of the building. Externally a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lancaster, England
Lancaster (, ) is a city and the county town of Lancashire, England, standing on the River Lune. Its population of 52,234 compares with one of 138,375 in the wider City of Lancaster local government district. The House of Lancaster was a branch of the English royal family. The Duchy of Lancaster still holds large estates on behalf of Charles III, who is also Duke of Lancaster. Its long history is marked by Lancaster Castle, Lancaster Priory Church, Lancaster Cathedral and the Ashton Memorial. It is the seat of Lancaster University and has a campus of the University of Cumbria. The Port of Lancaster played a big role in the city's growth, but for many years the outport of Glasson Dock has become the main shipping facility. History The name of the city first appeared in the Domesday Book of 1086, as ''Loncastre'', where "Lon" refers to the River Lune and "castre" (from the Old English ''cæster'' and Latin ''castrum'' for "fort") to the Roman fort that stood on the site. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isle Of Portland
An isle is an island, land surrounded by water. The term is very common in British English. However, there is no clear agreement on what makes an island an isle or its difference, so they are considered synonyms. Isle may refer to: Geography * Isle (river), a river in France * Isle, Haute-Vienne, a commune of the Haute-Vienne ''département'' in France * Isle, Minnesota, a small city in the United States * River Isle, a river in England Arts, entertainment, and media * ''Interdisciplinary Studies in Literature and Environment'' (or ''ISLE''), a journal published by Oxford University Press for the Association for the Study of Literature and Environment *''The Isle'', 2017 film with Conleth Hill * ''The Isle'', a 2000 South Korean film directed by Kim Ki-duk * ''Isle'' (album) Other uses * International Society for the Linguistics of English (ISLE), a learned society of linguists See also * Aisle An aisle is, in general, a space for walking with rows of non-walking spaces o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorset
Dorset ( ; archaically: Dorsetshire , ) is a county in South West England on the English Channel coast. The ceremonial county comprises the unitary authority areas of Bournemouth, Christchurch and Poole and Dorset (unitary authority), Dorset. Covering an area of , Dorset borders Devon to the west, Somerset to the north-west, Wiltshire to the north-east, and Hampshire to the east. The county town is Dorchester, Dorset, Dorchester, in the south. After the Local Government Act 1972, reorganisation of local government in 1974, the county border was extended eastward to incorporate the Hampshire towns of Bournemouth and Christchurch. Around half of the population lives in the South East Dorset conurbation, while the rest of the county is largely rural with a low population density. The county has a long history of human settlement stretching back to the Neolithic era. The Roman conquest of Britain, Romans conquered Dorset's indigenous Durotriges, Celtic tribe, and during the Ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Types Of Limestone
This is a list of types of limestone arranged according to location. It includes both formal stratigraphic unit names and less formal designations. Africa Egypt *Tura limestone, used for the Great Pyramid casing stones *Mokattam limestone; Great Pyramid core stones and head of the Great Sphinx are of the "Member III" stratum * Galala marble (a type of limestone, not a true marble) Asia India * * Israel (West Bank) * * Europe Austria * Belgium *, (not a "true marble"; Devonian limestone) * * Croatia * France * *, or "Paris stone" (city buildings are widely faced with it) **, or Oise, limestone (variety of Lutetian) * *, in the Loire Valley Germany * * Gibraltar * Ireland * , not a "true marble"; fossiliferous Carboniferous limestone. Italy * , not a "true marble"; fossiliferous limestone United Kingdom England: * (not a "true marble"; Carboniferous limestone) * * * , the famous London Stone is made of this. * (not a "true slate"; thin-bedded limestone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Dorset
Dorset (or archaically, Dorsetshire) is a county in South West England on the English Channel coast. Covering an area of ; it borders Devon to the west, Somerset to the north-west, Wiltshire to the north-east, and Hampshire to the east. The great variation in its landscape owes much to the underlying geology, which includes an almost unbroken sequence of rocks from 200 to 40 million years ago (Mya) and superficial deposits from 2 Mya to the present.Chaffey (pp.5–6) In general, the oldest rocks (Early Jurassic) appear in the far west of the county, with the most recent (Eocene) in the far east. Jurassic rocks also underlie the Blackmore Vale and comprise much of the coastal cliff in the west and south of the county; although younger Cretaceous rocks crown some of the highpoints in the west, they are mainly to be found in the centre and east of the county.Chaffey (p.6) Dorset's coastline is one of the most visited and studied coastlines in the world because it shows, along the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
