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Scar Crags
Scar Crags is a fell in the north western part of the English Lake District in the county of Cumbria. It is one of the Coledale group of fells situated seven kilometres south west of Keswick and reaches a height of 672 metres (2205 feet). Topography The fell is part of the long ridge that radiates easterly from Eel Crag and includes the adjoining fells of Sail and Causey Pike before dropping to the Newlands Valley. Scar Crags is characterised by steep craggy flanks on its southern side which fall away steeply to Rigg Beck, while the northern slopes are less steep and grassy as they drop to Stoneycroft Gill. Geology The ridgeline is composed of the laminated mudstone and siltstone of the Kirkstile Formation.British Geological Survey: 1:50,000 series maps, ''England & Wales Sheet 29'': BGS (1999) Ascents Scar Crags is very rarely climbed directly. The only feasible direct ascent follows an old mine road that starts from Stair and goes up Stoneycroft Gill to finish at Sail Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crag Hill
Crag Hill is a mountain in the North Western part of the English Lake District. It was formerly known as Eel Crag; however, the Ordnance Survey now marks Eel Crag as referring to the northern crags of the fell. It is not to be confused with another Crag Hill lying on the border of North Yorkshire. It overlooks the valleys of Rannerdale on the west, and Coledale on the east. It is the second highest fell in the area of high ground between the passes of Whinlatter and Newlands, second to Grasmoor. It is 839 m (2,753 feet) high, and has a relative height of 117 m. Topography The North Western Fells occupy the area between the rivers Derwent and Cocker, a broadly oval swathe of hilly country, elongated on a north-south axis. Two roads cross from east to west, dividing the fells into three convenient groups. The central sector, rising between Whinlatter and Newlands passes, includes Crag Hill. The highest ground in the North Western Fells is an east-west ridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mudstone
Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. Mudstone is distinguished from '' shale'' by its lack of fissility (parallel layering).Blatt, H., and R.J. Tracy, 1996, ''Petrology.'' New York, New York, W. H. Freeman, 2nd ed, 529 pp. The term ''mudstone'' is also used to describe carbonate rocks (limestone or dolomite) that are composed predominantly of carbonate mud. However, in most contexts, the term refers to siliciclastic mudstone, composed mostly of silicate minerals. The NASA Curiosity rover has found deposits of mudstone on Mars that contain organic substances such as propane, benzene and toluene. Definition There is not a single definition of mudstone that has gained general acceptance,Boggs 2006, p.143 though there is wide agreement that mudstones are fine-grained sedimentary rocks, composed mostly of silicate grains with a grain size less than . Individual grains this size are too small to be disting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adit
An adit (from Latin ''aditus'', entrance) is an entrance to an underground mine which is horizontal or nearly horizontal, by which the mine can be entered, drained of water, ventilated, and minerals extracted at the lowest convenient level. Adits are also used to explore for mineral veins. Construction Adits are driven into the side of a hill or mountain, and are often used when an ore body is located inside the mountain but above the adjacent valley floor or coastal plain. In cases where the mineral vein outcrops at the surface, the adit may follow the lode or vein until it is worked out, in which case the adit is rarely straight. The use of adits for the extraction of ore is generally called drift mining. Adits can only be driven into a mine where the local topography permits. There will be no opportunity to drive an adit to a mine situated on a large flat plain, for instance. Also if the ground is weak, the cost of shoring up a long adit may outweigh its possible advantage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tramway (mineral)
Tramways are lightly laid railways, sometimes with the wagons or carriages moved without locomotives. Because individual tramway infrastructure is not intended to carry the weight of typical standard-gauge railway equipment, the tramways over which they operate may be built from less substantial materials. Tramways can exist in many forms; sometimes just tracks temporarily placed on the ground to transport materials around a factory, mine or quarry. Many, if not most, use narrow-gauge railway technology. The trains can be manually pushed by hand, pulled by animals (especially horses and mules), cable hauled by a stationary engine, or use small, light locomotives. The term is not in use in North America but in common use in the United Kingdom, and elsewhere, where British Railway terminology and practices had large influences on management practices, terminology, and railway cultures such as Australia, New Zealand, and those parts of Asia that consulted with British experts w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobalt
Cobalt is a chemical element with the symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Cobalt-based blue pigments ( cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was for a long time thought to be due to the known metal bismuth. Miners had long used the name ''kobold ore'' (German for ''goblin ore'') for some of the blue-pigment-producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes when smelted. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the ''kobold''. Today, some cobalt is produced specifically from one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hopegill Head
Hopegill Head is a fell in the English Lake District in Cumbria. It is located nine kilometres (5½ miles) west of the town of Keswick and is well seen from the B5292 road which crosses the Whinlatter Pass. Topography Hopegill Head is the middle fell of three fells on a ridge that starts at Braithwaite and goes west for eight kilometres to conclude at the northern end of Crummock Water. The other two fells on the ridge are Grisedale Pike and Whiteside. The fell is often referred to locally as Hobcarton Pike as it stands at the head of Hobcarton Gill. However, the Ordnance Survey have officially named the fell Hopegill Head on maps after Hope Gill, which is another valley that goes north-west from the summit. Hopegill Head reaches a height of 770 metres (2526 feet) and has two subsidiary summits, Ladyside Pike (703 metres / 2306 feet) and Sand Hill (756 metres / 2480 feet) both of which have Nuttall status. Hopegill Head’s most striking feature is the 130-metre-high (41 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grisedale Pike
Grisedale Pike is a fell in the Lake District, Cumbria, England, situated west of the town of Keswick in the north-western sector of the national park. At a height of 791 m (2593 feet) it is the 40th-highest Wainwright in the Lake District; it also qualifies as a Hewitt, Marilyn and Nuttall. Grisedale Pike presents a striking appearance when viewed from the east, particularly from the vicinity of Keswick. It possesses two subsidiary summits: one unnamed (usually referred to as 'subsidiary summit', situated above Hobcarton Crag); the other Hobcarton End. Topography Grisedale Pike is a large fell throwing down three long ridges to the valley floors and two shorter ones that link to the adjoining fell of Hopegill Head and the strategically important Coledale Hause which links the fell to the rest of the Coledale Fells. It is bounded to the south by the 2½-mile (4-kilometre) valley of Coledale and to the north by the Whinlatter Pass which carries the B5292 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Braithwaite
Braithwaite is a village in the northern Lake District, in Cumbria, England. Historically in Cumberland, it lies just to the west of Keswick and to the east of the Grisedale Pike ridge, in the Borough of Allerdale. It forms part of the civil parish of Above Derwent. The eastern end of the Whinlatter Pass road is in the village. The A66 road bypasses Braithwaite, but does not enter the village. Braithwaite is situated around Coledale Beck, a brook which joins Newlands Beck shortly after passing through the village. Newlands Beck (coming from the Newlands Valley) then flows north towards Bassenthwaite Lake. Braithwaite has a Village Shop by the Low Bridge, several pubs, including the Coledale Inn, the Royal Oak and the Middle Ruddings Hotel. Braithwaite is easily accessible due to its close proximity to the A66. It has a campsite with a caravan park, B + Bs, pubs and guest houses. It has a wide range of sports including sailing, climbing, abseiling, canoeing, hang-gliding, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coledale Horseshoe
The Coledale horseshoe, or Coledale Round, is a semi-circle of fells surrounding Coledale in the Lake District, England. It provides excellent ridge-walking over the fells. Due to the topography, there are multiple variants of the horseshoe with the option for walkers to add in a variety of extra peaks if they choose. Fell structure A horseshoe of high summits surrounds Coledale, from Grisedale Pike in the north, round through Hopegill Head, down to the pass of Coledale Hause, and then up to Eel Crag (known as 'Cragg Hill' on Ordnance Survey maps) and Sail. To the south the ridge splits into two, with Scar Crags and Causey Pike on the outer ridge and Outerside and Barrow forming what Wainwright called "a lower and parallel ridge like an inner balcony". The Rounds There is no definitive version of the round. The Coledale Horseshoe fell running race takes in Grisedale Pike before dropping down to Coledale Hause, and then covers Eel Crag, Sail, Outerside and Barrow, which is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sail Pass
Hill passes of the Lake District were originally used by people in one valley travelling to another nearby without having to go many miles around a steep ridge of intervening hills. Historically, in the Lake District of northwest England, travel on foot or by pony was difficult because of the region's steep-sided valleys so tracks across the ridges were created taking the easiest route over passes – often, but not always, via a col. Since Roman times long-distance travel had tended to be along ridges. From the 19th century these passes and ridge routes were brought back into use when recreational hill walking become popular. Forty hill passes within the Lake District National Park are listed here, using criteria for selecting the major routes. Background The Lake District National Park was created in 1951 covering an area of over and, although its population is only 42,000, over 10 million visitors arrive each year, mostly attracted by the lakes and fells. Geology Abou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltstone
Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility.Blatt ''et al.'' 1980, pp.381-382 Although its permeability and porosity is relatively low, siltstone is sometimes a tight gas reservoir rock, an unconventional reservoir for natural gas that requires hydraulic fracturing for economic gas production. Siltstone was prized in ancient Egypt for manufacturing statuary and cosmetic palettes. The siltstone quarried at Wadi Hammamat was a hard, fine-grained siltstone that resisted flaking and was almost ideal for such uses. Description There is not complete agreement on the definition of siltstone. One definition is that siltstone is mudrock ( clastic sedimentary rock containing at least 50% clay and silt) in which at least 2/3 of the clay and silt fraction is composed of silt-sized particles. Silt is defined a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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