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Wheal Jane
Wheal Jane is a disused tin mine near Baldhu and Chacewater in West Cornwall, England, United Kingdom. The area itself consisted of a large number of mines. History Wheal Jane was probably seriously worked for tin from the mid-18th century. Given the complexity of ore formation near granitic emplacements, amounts of arsenic, copper, silver and zinc were also worked at some time. In around 1885, most of the nearby mines became uneconomic. Wheal Jane was able to struggle on for a few years, principally due to its arsenic revenue, but it too succumbed in around 1895. It re-opened in 1906 as part of Falmouth Consolidated, with a modernisation and cost reducing agenda, but it was to close again within a decade. Work recommenced at low intensity in the run up to World War II but interest was turning to more modern processing techniques to recover more tin from what was already available and the old mine spoil was re-worked until 1946. It was re-opened again in 1969 and much develo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chacewater
Chacewater ( kw, Dowr an Chas) is a village and civil parish in Cornwall, England, UK. It is situated approximately east of Redruth. The hamlets of Carnhot, Cox Hill, Creegbrawse, Hale Mills, Jolly's Bottom, Salem, Saveock, Scorrier, Todpool, Twelveheads and Wheal Busy are in the parish. The electoral ward is called Chacewater & Kenwyn. At the 2011 census a population of 3,870 was quoted. Village Chacewater sits in a valley between hills separating it from the villages of Threemilestone, Scorrier and St Day. Nearby is Wheal Busy, the Poldice Valley and the Coast to Coast cycle route. The village has a pub and a club, the Chacewater Literary Institute. There are also a health centre, primary school, village hall and small selection of shops. A free monthly magazine ''What's on in Chacewater'' reached its 200th issue in July 2007. It lists events and activities, such as the Football Club, a Cricket Club, a Bowling Club, the Chacewater Old Cornwall Society, the Chacewater Playe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Tin Council
The International Tin Council (ITC) was an organisation which acted on behalf of major tin producers and consumers to control the international tin market. An ''International Tin Study Group'', which was established in 1947 to survey world supply of and demand for tin, led to the treaty, the International Tin Agreement, signed in 1954, and the formation of the ITC in 1956. The objectives were: * Prevent or alleviate widespread unemployment or under-employment and other serious difficulties which are likely to result from maladjustments between the supply of and the demand for tin. * Prevent excessive fluctuations in the price of tin and achieve a reasonable degree of stability of price on a basis which will secure long-term equilibrium between supply and demand. * Ensure adequate supplies of tin at reasonable prices at all times. * Provide a framework for the consideration and development of measures to promote the progressively more economic production of tin while protecting tin d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mines In Cornwall
Mine, mines, miners or mining may refer to: Extraction or digging *Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun Military * Anti-tank mine, a land mine made for use against armored vehicles * Antipersonnel mine, a land mine targeting people walking around, either with explosives or poison gas * Bangalore mine, colloquial name for the Bangalore torpedo, a man-portable explosive device for clearing a path through wire obstacles and land mines * Cluster bomb, an aerial bomb which releases many small submunitions, which often act as mines * Land mine, explosive mines placed under or on the ground * Mining (military), digging under a fortified military position to penetrate its defenses * Naval mine, or sea mine, a mine at sea, either floating or on the sea bed, often dropped via parachute from aircraft, or otherwise lain by surface ships or submarines * Par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Cornwall
The history of Cornwall goes back to the Paleolithic, but in this period Cornwall only had sporadic visits by groups of humans. Continuous occupation started around 10,000 years ago after the end of the last ice age. When recorded history started in the first century BCE, the spoken language was Common Brittonic, and that would develop into Southwestern Brittonic and then the Cornish language. Cornwall was part of the territory of the tribe of the Dumnonii that included modern-day Devon and parts of Somerset. After a period of Roman rule, Cornwall reverted to rule by independent Romano-British leaders and continued to have a close relationship with Brittany and Wales as well as southern Ireland, which neighboured across the Celtic Sea. After the collapse of Dumnonia, the remaining territory of Cornwall came into conflict with neighbouring Wessex. By the middle of the ninth century, Cornwall had fallen under the control of Wessex, but it kept its own culture. In 1337, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Topics Related To Cornwall
The following outline is provided as an overview of and topical guide to Cornwall: Cornwall – ceremonial county and unitary authority area of England within the United Kingdom. Cornwall is a peninsula bordered to the north and west by the Celtic Sea,International Hydrographic Organization to the south by the English Channel, and to the east by the county of Devon, over the River Tamar. Cornwall is also a royal duchy of the United Kingdom. It has an estimated population of half a million and it has its own distinctive history and culture. General reference * Etymology of "Cornwall" * Common English name(s): Cornwall * Common endonym(s): Kernow * Adjectival(s): Cornish * Demonym(s): Cornish Geography of Cornwall Geography of Cornwall * Cornwall is a mainland county of Great Britain and part of the British Isles. It reaches from the south-westernmost point into the Atlantic Ocean and English Channel. It is in Eurasia (but not on the mainland) in the Northern Hem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camborne School Of Mines
The Camborne School of Mines ( kw, Scoll Balow Cambron), commonly abbreviated to CSM, was founded in 1888. Its research and teaching is related to the understanding and management of the Earth's natural processes, resources and the environment. It has undergraduate, postgraduate and research degree programmes within the Earth resources, civil engineering and environmental sectors. CSM is located at the Penryn Campus, near Falmouth, Cornwall, UK. The school merged with the University of Exeter in 1993. Reputation The Camborne School of Mines has an international reputation in mining, tunnelling, mineralogy, mineral economics, geology, geophysics and geochemistry. CSM's international reputation dates back to the 19th century when with new deposits found around the world CSM graduates began to seek employment overseas and by the 20th century, graduates were in most of the world's major mining areas such as Southern Africa, Western Africa, Malaysia, Australia, South America, Mexi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Cornwall And Devon
Mining in Cornwall and Devon, in the southwest of England, began in the early Bronze Age, around 2150 BC. Tin, and later copper, were the most commonly extracted metals. Some tin mining continued long after the mining of other metals had become unprofitable, but ended in the late 20th century. In 2021, it was announced that a new mine was extracting battery-grade lithium carbonate, more than 20 years after the closure of the last South Crofty tin mine in Cornwall in 1998. Historically, tin and copper as well as a few other metals (e.g. arsenic, silver, and zinc) have been mined in Cornwall and Devon. Tin deposits still exist in Cornwall, and there has been talk of reopening the South Crofty tin mine. In addition, work has begun on re-opening the Hemerdon tungsten and tin mine in south-west Devon. In view of the economic importance of mines and quarries, geological studies have been conducted; about forty distinct minerals have been identified from type localities in Cornwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Settling Pond
A settling basin, settling pond or decant pond is an earthen or concrete structure using sedimentation to remove settleable matter and turbidity from wastewater. The basins are used to control water pollution in diverse industries such as agriculture, aquaculture, and mining. Turbidity is an optical property of water caused by scattering of light by material suspended in that water. Although turbidity often varies directly with weight or volumetric measurements of settleable matter, correlation is complicated by variations in size, shape, refractive index, and specific gravity of suspended matter. Settling ponds may be ineffective at reducing turbidity caused by small particles with specific gravity low enough to be suspended by Brownian motion. Range of applications Settling basins are used as a separation mechanism to eliminate rejected products (i.e. waste solids management strategies) of a specified size and quantity in various fields, such as aquaculture, mining, dairy, foo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falmouth, Cornwall
Falmouth ( ; kw, Aberfala) is a town, civil parish and port on the River Fal on the south coast of Cornwall, England, United Kingdom. It has a total resident population of 21,797 (2011 census). Etymology The name Falmouth is of English origin, a reference to the town's situation on the mouth of the River Fal. The Cornish language name, ' or ', is of identical meaning. It was at one time known as ''Pennycomequick'', an Anglicisation of the Celtic ''Pen-y-cwm-cuic'' "head of the creek"; this is the same as Pennycomequick, a district in Plymouth. History Early history In 1540, Henry VIII built Pendennis Castle in Falmouth to defend Carrick Roads. The main town of the district was then at Penryn. Sir John Killigrew created the town of Falmouth shortly after 1613. In the late 16th century, under threat from the Spanish Armada, the defences at Pendennis were strengthened by the building of angled ramparts. During the Civil War, Pendennis Castle was the second to las ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnon River
The Carnon River ( kw, Avon Carnon) is a heavily polluted river in Cornwall, United Kingdom. It starts in Chacewater. Trewedna Water and River Kennall flow into the Carnon before it merges with Tallack's Creek to become Restronguet Creek, which eventually flows into the English Channel at the mouth of Carrick Roads. The Nebra sky disc, a gold-decorated bronze disc found in Germany and dated to the Bronze Age, contains both gold and tin from the Carnon valley. In 1992 the river was hit by a major pollution incident, when over 45 million litres of contaminated water from the closed Wheal Jane mine was released by the collapse of an adit, colouring the river water red. A treatment works has since been installed at Wheal Jane to intercept the contaminated water and treat it to remove suspended metals and restore a neutral pH. See also * List of rivers in Cornwall *List of rivers of England This is a list of rivers of England, organised geographically and taken anti-clockwis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid Mine Drainage
Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide minerals. Areas where the earth has been disturbed (e.g. construction sites, subdivisions, and transportation corridors) may create acid rock drainage. In many localities, the liquid that drains from coal stocks, coal handling facilities, coal washeries, and coal waste tips can be highly acidic, and in such cases it is treated as acid rock drainage. This liquid often contains highly toxic metals, such as copper or iron. These, combined with reduced pH, have a detrimental impact on the streams aquatic environments. The same type of chemical reactions and pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groundwater
Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from the surface; it may discharge from the surface naturally at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology. Typically, groundwater is thought of as water flowing through shallow aquifers, but, in the technical sense, it can also contain soil moisture, perma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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