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Rannerdale Knotts
Rannerdale Knotts is a fell in the Lake District of Cumbria, England. Rising from the Buttermere valley, it is one of the smaller Cumbrian hills and is overlooked by a number of surrounding fells, such as Grasmoor, Whiteless Pike and, across Crummock Water, Mellbreak and the High Stile ridge. Rannerdale Knotts is said to be the site of a battle between the native Cumbrians and Norsemen and the invading Normans in the late 11th or early 12th century. 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 Pass and Newlands Pass, includes Whiteless Pike. The highest ground in the North Western Fells is an east-west ridge in this central sector, beginning with Grasmoor above Crummock Water and then gradually descending eastwards over Crag Hill, Sail, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haystacks (Lake District)
Haystacks, or Hay Stacks, is a hill in England's Lake District, situated at the south-eastern end of the Buttermere Valley. Although not of any great elevation (597 m, 1,958 ft), Haystacks has become one of the most popular fells in the area. This fame is partly due to the writings of Alfred Wainwright, who espoused its attractions and chose it as the place where he wanted his ashes scattered.Alfred Wainwright: ''A Pictorial Guide to the Lakeland Fells, Volume 7 The Western Fells'': Westmorland Gazette (1966): Hunter Davies: ''Wainwright: The biography'': Michael Joseph (1995): Its large, undulating summit contains many rock formations, tarns and hidden recesses. Name The name ''Haystacks'' derives from the appearance of the summit cliffs. According to Wainwright, the name comes from the Icelandic ''stack'' meaning 'a columnar rock' and the correct translation of this should be ''High Rocks''. Topography The Western Fells occupy a triangular sector of the Lake Dist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whinlatter Pass
The Whinlatter Pass is a mountain pass in the English Lake District. It is located on the B5292 road linking Braithwaite, to the west of Keswick, with High Lorton to the south of Cockermouth. To the north the pass is flanked by Whinlatter fell, while to the south the Whiteside, Hopegill Head and Grisedale Pike fells borders the pass. From the top of the pass, paths climb Whinlatter and Grisedale Pike. There is also a Forestry Commission tourist centre there. The Whinlatter Pass is one of three passes that link the tourist area around Keswick, including Derwent Water and Borrowdale, with the valley of the River Cocker, including the lakes of Buttermere, Crummock Water and Loweswater. From north to south these passes are the Whinlatter Pass, the Newlands Pass, and the Honister Pass. The Whinlatter Pass can be icy in winter, but it is a less severe route than the other two passes. The Pass was used for the first King of the Mountains climb on the second stage of the 2016 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olistostrome
An olistostrome is a sedimentary deposit composed of a chaotic mass of heterogeneous material, such as blocks and mud, known as olistoliths, that accumulates as a semifluid body by submarine gravity sliding or slumping of the unconsolidated sediments. It is a mappable stratigraphic unit which lacks true bedding, but is intercalated amongst normal bedding sequences, as in the Cenozoic basin of central Sicily. The term olistostrome is derived from the Greek ''olistomai'' (to slide) and ''stroma'' (accumulation).Ernesto Abbate, et al., "Olistostromes and olistoliths", ''Sedimentary Geology'', 4 (1970), 521-557. See also *Submarine landslide Submarine landslides are marine landslides that transport sediment across the continental shelf and into the deep ocean. A submarine landslide is initiated when the downwards driving stress (gravity and other factors) exceeds the resisting str ... References Sedimentary rocks {{Geology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Causey Pike Fault
The Causey Pike Fault or Causey Pike Thrust is a major WSW-ENE trending fault within the Lower Paleozoic rocks of the English Lake District. It is named for Causey Pike, where the fault was first recognised. Extent The Causey Pike Fault has been recognised across the entire outcrop of the Lake District inlier, extending about 35 km from near Ennerdale Bridge in the west, to near Troutbeck in the east. A possible continuation of the fault to the east has been recognised in the Cross Fell inlier, where it also juxtaposes two differing parts of the Skiddaw Group. Recognition It juxtaposes two successions dominated by mudrocks that are of similar age. To the north of the fault, the Ordovician Skiddaw Group is represented by the Kirk Stile Formation, to the south by the Buttermere Formation, both of Arenig age. The younger sequence of volcanic rocks overlying the Skiddaw Group also differs, with the Eycott Volcanic Group to the north and the Borrowdale Volcanic Group to the south. ... [...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] |
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] |
Skiddaw
Skiddaw is a mountain in the Lake District National Park in England. Its summit is the sixth-highest in England. It lies just north of the town of Keswick, Cumbria, and dominates the skyline in this part of the northern lakes. It is the simplest of the Lake District mountains of this height to ascend (as there is a well-trodden tourist track from a car park to the north-east of Keswick, near the summit of Latrigg) and, as such, many walking guides recommend it to the occasional walker wishing to climb a mountain. This is the first summit of the fell running challenge known as the Bob Graham Round when undertaken in a clockwise direction. The mountain lends its name to the surrounding areas of Skiddaw Forest and Back o' Skidda, and to the isolated Skiddaw House, situated to the east, formerly a shooting lodge and subsequently a youth hostel. It also provides the name for the slate derived from that region: Skiddaw slate. Skiddaw slate has been used to make tuned percussi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordovician
The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), 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 Celtic Britons, 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 (geology), rock beds in North Wales in the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed Stratum, 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 Union of Geological Sciences, Intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wandope
Wandope (also known as ''Wanlope''Alfred Wainwright: ''A Pictorial Guide to the Lakeland Fells, Book 6, The North Western Fells'': Westmorland Gazette (1964): or ''Wandhope'') is a fell in the north-western area of the English Lake District. It lies to the east of Crummock Water and south of Crag Hill. From the summit there are excellent panoramas of the Sca Fell and High Stile ranges. 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 Pass and Newlands Pass, includes Wandope. The highest ground in the North Western Fells is an east–west ridge in this central sector, beginning with Grasmoor above Crummock Water and then gradually descending eastwards over Crag Hill, Sail (Lake District), Sail, Scar Crags and Causey Pike. Grasmoor has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Causey Pike
Causey Pike is a fell in the English Lake District. It is situated in the Newlands Valley, 5 km south-west of the town of Keswick. Even though it has a modest height of 637 metres (2,090 ft) it is one of the most distinctive fells when viewed from the Derwent Water and Keswick area due to its distinguishing summit "knobble" which catches the eye. The fell is one of 214 fells described by Alfred Wainwright in his series of ''Pictorial Guides to the Lakeland Fells'': Causey Pike features in Book Six, ''The North Western Fells''. 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 Pass and Newlands Pass, includes Causey Pike. The highest ground in the North Western Fells is an east–west ridge in this central sector, begi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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