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Greenside Mine
Greenside Mine (sometimes referred to as ''Greenside Lead Mine'') was a successful lead mine in the Lake District of England. Between 1825 and 1961 the mine produced of lead and of silver, from around 2 million tons of ore. During the 1940s it was the largest producer of lead ore in the UK. Unusually for a 19th-century metalliferous mine in Britain there are very full records of its activities, dating back to 1825. The mine probably opened during the second half of the 1700s but had closed by 1819. In 1825 the Greenside Mining Company was formed and reopened the mine. They made good profits until 1880, when the price of lead fell. Many other lead mines closed at that time, but the company reduced its costs and continued to work Greenside until 1935. Electricity was introduced to the mine in the 1890s, and it became the first metalliferous mine in Britain to use electric winding engines and an electric locomotive. In 1936 the Basinghall Mining Syndicate Ltd. acquired the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead
Lead is a chemical element with the Symbol (chemistry), symbol Pb (from the Latin ) and atomic number 82. It is a heavy metals, heavy metal that is density, denser than most common materials. Lead is Mohs scale of mineral hardness#Intermediate hardness, soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable nuclide, stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is toxic, even in small amounts, especially to children. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its amphoteric nature; lead and lead oxides react with acids and base (chemistry), bases, and it tends to form covalent bonds. Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Wagon
A steam wagon (or steam lorry, steam waggon or steamtruck) is a steam-powered truck for carrying freight. It was the earliest form of lorry (truck) and came in two basic forms: ''overtype'' and ''undertype'', the distinction being the position of the engine relative to the boiler. Manufacturers tended to concentrate on one form or the other. Steam wagons were a widespread form of powered road traction for commercial haulage in the early part of the twentieth century, although they were a largely British phenomenon, with few manufacturers outside Great Britain. Competition from internal-combustion-powered vehicles and adverse legislation meant that few remained in commercial use beyond the Second World War. Although the majority of steam wagons have been scrapped, a significant number have been preserved in working order and may be seen in operation at steam fairs, particularly in the UK. Design features The steam wagon came in two basic forms. The ''overtype'' designs looked lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dike (geology)
A dike or dyke, in geological usage, is a sheet of rock that is formed in a fracture of a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma flows into a crack then solidifies as a sheet intrusion, either cutting across layers of rock or through a contiguous mass of rock. Clastic dikes are formed when sediment fills a pre-existing crack.Essentials of Geology, 3rd Ed, Stephen Marshak Magmatic dikes A magmatic dike is a sheet of igneous rock that cuts across older rock beds. It is formed when magma fills a fracture in the older beds and then cools and solidifies. The dike rock is usually more resistant to weathering than the surrounding rock, so that erosion exposes the dike as a natural wall or ridge. It is from these natural walls that dikes get their name. Dikes preserve a record of the fissures through which most mafic magma (fluid magma low in silica) reaches the surface. They are studied by geologists for the cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skiddaw Group
''For the Skiddaw group of hills, see Skiddaw Group'' The Skiddaw Group is a group of sedimentary rock formations named after the mountain Skiddaw in the English Lake District. The rocks are almost wholly Ordovician in age ( Tremadoc through Arenig to Llanvirn epochs) though the lowermost beds are possibly of Cambrian age. This rock sequence has previously been known as the Skiddaw Slates, the Skiddaw Slates Group and the Skiddavian Series. Its base is not exposed but in its main outcrop area, it is considered to be in excess of thick though less elsewhere. It consists largely of mudstones and siltstones with subordinate wacke-type sandstones. Their main occurrence is within the northern and central fells of the Lake District, either side of the major ENE-WSW aligned Causey Pike Fault, but inliers are found at Black Combe in the south of the Lake District and at Cross Fell in the North Pennines. Stratigraphy In the Northern Fells of the Lake District, the Skiddaw Group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordovician
The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. The Ordovician, named after the Welsh tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same rock beds in North Wales in the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed strata were different from those of either the Cambrian or the Silurian systems, and placed them in a system of their own. The Ordovician received international approval in 1960 (forty years after Lapworth's death), when it was adopted as an official period of the Paleozoic Era by the International Geological Congress. Life continued to flourish during the Ordovician as it did in the earlier C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borrowdale Volcanic Group
The Borrowdale Volcanic Group is a group of igneous rock formations named after the Borrowdale area of the Lake District, in England. They are Caradocian (late Ordovician) in age (roughly 450 million years old). It is thought that they represent the remains of a volcanic island arc, approximately similar to the island arcs of the west Pacific today. This developed as oceanic crust to the (present) north-west and was forced by crustal movement under a continental land-mass to the present south-east. Such forcing under, as two plates meet, is termed subduction. This land-mass has been named Avalonia by geologists. It is now incorporated into England and Wales and a sliver of North America. Geology At that time the rocks that now comprise most of Scotland (and part of the northern Irish landmass) were not attached to Avalonia. They were separated by an ocean, called the Iapetus Ocean by geologists. The line of joining, or suture, is approximately under the Solway Firth and Chev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mineral Vein
In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation. Veins are classically thought of as being the ones in the body not the rock veins and arteries planar fractures in rocks, with the crystal growth occurring normal to the walls of the cavity, and the crystal protruding into open space. This certainly is the method for the formation of some veins. However, it is rare in geology for significant open space to remain open in large volumes of rock, especially several kilometers below the surface. Thus, there are two main mechanisms considered likely for the formation of veins: ''open-space filling'' and ''crack-seal growth''. Open space filling Open space filling is the hallmark of epithermal vein systems, such as a stockwork, in greisens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenside Geology
Greenside or Green Side may refer to the following places: England * Greenside, Cumbria, a location * Green Side, a hill in the Lake District * Greenside, Derbyshire, a location * Greenside, Greater Manchester, a location * Greenside, Tyne and Wear * Greenside, West Yorkshire, a location * Green Side, Kirklees, a location in West Yorkshire * Green Side, Leeds, a location in West Yorkshire * Greenside, properly Greenside House, a house in Sheffield, South Yorkshire South Africa * Ext 44, Greenside, a township in Polokwane, South Africa * Greenside, Gauteng, Johannesburg ** Greenside High School Greenside High School is a public co-educational high school in Johannesburg, Gauteng, South Africa. Greenside High School (Top Public School in Gauteng 2007) is situated in the suburb of Greenside. Academics The school also offers an AP E ... ** Greenside Primary School * Greenside, Mpumalanga {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raise (Lake District)
Raise is a fell in the English Lake District. It stands on the main spine of the Helvellyn range in the Eastern Fells, between Thirlmere and Ullswater. Topography The Helvellyn range runs broadly north–south for about , remaining above 2,000 ft (600 m) its entire length. Raise is near the centre of this ridge, with Stybarrow Dodd to the north and White Side to the south. As with many of these fells, Raise displays smooth grassy slopes on the west and rougher ground to the east. Here however the contrast is much less marked than further south around Helvellyn and Nethermost Pike. Unusually for such a high fell, the slopes of Raise do not have a toehold at valley level on either side. In the west the boundary streams of Sticks Gill (West) and Brund Gill meet just below White Side's Brown Crag. As Fisherplace Gill they descend a further thousand feet to the valley, and originally turned north to join St John's Beck. All of this changed as part of the Thirlmere res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westmorland
Westmorland (, formerly also spelt ''Westmoreland'';R. Wilkinson The British Isles, Sheet The British IslesVision of Britain/ref> is a historic county in North West England spanning the southern Lake District and the northern Dales. It had an administrative function from the 12th century until 1974. Between 1974 and 2023 Westmorland lay within the administrative county of Cumbria. In April 2023, Cumbria County Council will be abolished and replaced with two unitary authorities, one of which, Westmorland and Furness, will cover all of Westmorland (as well as other areas), thereby restoring the Westmorland name to a top-tier administrative entity. The people of Westmorland are known as Westmerians. Early history Background At the beginning of the 10th century a large part of modern day Cumbria was part of the Kingdom of Strathclyde, and was known as '' "Scottish Cumberland" ''. The Rere Cross was ordered by Edmund I (r.939-946) to serve as a boundary marker between England a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumbria
Cumbria ( ) is a ceremonial and non-metropolitan county in North West England, bordering Scotland. The county and Cumbria County Council, its local government, came into existence in 1974 after the passage of the Local Government Act 1972. Cumbria's county town is Carlisle, in the north of the county. Other major settlements include Barrow-in-Furness, Kendal, Whitehaven and Workington. The administrative county of Cumbria consists of six districts (Allerdale, Barrow-in-Furness, Carlisle, Copeland, Eden and South Lakeland) and, in 2019, had a population of 500,012. Cumbria is one of the most sparsely populated counties in England, with 73.4 people per km2 (190/sq mi). On 1 April 2023, the administrative county of Cumbria will be abolished and replaced with two new unitary authorities: Westmorland and Furness (Barrow-in-Furness, Eden, South Lakeland) and Cumberland (Allerdale, Carlisle, Copeland). Cumbria is the third largest ceremonial county in England by area. It is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patterdale
Patterdale (Saint Patrick's Dale) is a small village and civil parish in the eastern part of the English Lake District in the Eden District of Cumbria, in the traditional county of Westmorland, and the long valley in which they are found, also called the Ullswater Valley. The parish had a population of 460 in 2001, increasing to 501 at the 2011 Census. The poet William Wordsworth lived in youth near Patterdale and his autobiographical poem The Prelude narrates in Book 1 such childhood activities as fishing in the lake from a stolen boat. The village is now the start point for a number of popular hill-walks, most notably the Striding Edge path up to Helvellyn. Other fells that can be reached from the valley include Place Fell, High Street, Glenridding Dodd, most of the peaks in the Helvellyn range, Fairfield and St Sunday Crag, and Red Screes and Stony Cove Pike at the very end of the valley, standing either side of the Kirkstone Pass which is the road to Ambleside. Furt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
