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Pillar (Lake District)
Pillar is a mountain in the western part of the English Lake District. Situated between the valleys of Ennerdale to the north and Wasdale to the south, it is the highest point of the Pillar group (some dozen fells clustered round it). At it is the eighth-highest mountain in the Lake District. The fell takes its name from Pillar Rock, a prominent feature on the Ennerdale side, regarded as the birthplace of rock climbing in the district.H.M Kelly & J.H.Doughty"A Short History of Lakeland Climbing, Part 1", '' Fell & Rock Climbing Club Journal'', 1936-37. Accessed 17 November 2006. Topography The Western Fells occupy a triangular sector of the Lake District, bordered by the River Cocker to the north east and Wasdale to the south east. Westwards the hills diminish toward the coastal plain of Cumberland. At the central hub of the high country are Great Gable and its satellites, while two principal ridges fan out on either flank of Ennerdale, the western fells in effect being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Gable
Great Gable is a mountain in the Lake District, United Kingdom. It is named after its appearance as a pyramid from Wasdale, though it is dome-shaped from most other directions. It is one of the most popular of the Lakeland fells, and there are many different routes to the summit. Great Gable is linked by the high pass of Windy Gap to its smaller sister hill, Green Gable, and by the lower pass of Beck Head to its western neighbour, Kirk Fell. Topography The Western Fells occupy a triangular sector of the Lake District, bordered by the River Cocker to the north east and Wasdale to the south east. Westwards, the hills diminish toward the coastal plain of Cumbria. At the central hub of the high country are Great Gable and its satellites, while two principal ridges fan out on either flank of Ennerdale, the western fells forming a horseshoe around this valley.Alfred Wainwright: ''A Pictorial Guide to the Lakeland Fells, Volume 7 The Western Fells'': Westmorland Gazette (1966): ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirk Fell
Kirk Fell is a fell in the Western part of the English Lake District. It is situated between Great Gable and Pillar on the long ring of fells surrounding the valley of Ennerdale, and also stands over Wasdale to the south. However, it is separated from its two higher neighbours by the low passes of Black Sail and Beck Head, giving it a high relative height and making it a Marilyn, the thirteenth highest in the Lake District. The direct ascent up the south-western slope from Wasdale Head is exceptionally steep and the subject of an amusing drawing by Wainwright.Alfred Wainwright: ''A Pictorial Guide to the Lakeland Fells, Volume 7 The Western Fells'': Westmorland Gazette (1966): Usual ascents are by one of the aforementioned passes; alternatively one may climb Kirk Fell as part of the Mosedale Horseshoe, a walk on the fells surrounding Mosedale, a side-valley of Wasdale. Topography The Western Fells occupy a triangular sector of the Lake District, bordered by the Rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lapilli Tuff
Lapilli (: lapillus) is a size classification of tephra, which is material that falls out of the air during a volcanic eruption or during some meteorite impacts. ''Lapilli'' is Latin for "little stones". By definition lapilli range from in diameter. A pyroclastic particle greater than 64 mm in diameter is known as a volcanic bomb when molten, or a volcanic block when solid. Pyroclastic material with particles less than 2 mm in diameter is referred to as volcanic ash. Formation Lapilli are spheroid-, teardrop-, dumbbell- or button-shaped droplets of molten or semi-molten lava ejected from a volcanic eruption that fall to earth while still at least partially molten. These granules are the direct result of liquid rock cooling as it travels through the air. Lapilli tuffs are a very common form of volcanic rock typical of rhyolite, andesite and dacite pyroclastic eruptions, where thick layers of lapilli can be deposited during a basal surge eruption. Most lapilli tuffs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyolite
Rhyolite ( ) is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained (aphanitic) in texture (geology), texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained matrix (geology), groundmass. The mineral assemblage is predominantly quartz, sanidine, and plagioclase. It is the extrusive equivalent of granite. Its high silica content makes rhyolitic magma extremely viscosity, viscous. This favors explosive eruptions over effusive eruptions, so this type of magma is more often erupted as pyroclastic rock than as lava flows. Rhyolitic ash-flow tuffs are among the most voluminous of continental igneous rock formations. Rhyolitic tuff has been used extensively for construction. Obsidian, which is rhyolitic volcanic glass, has been used for tools from prehistoric times to the present day because it can be shaped to an extremely sharp edge. Rhyolitic pumice finds use as an abrasive, in concrete, and as a soil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcaniclastic
Volcaniclastics are geologic materials composed of broken fragments (clasts) of volcanic rock. These encompass all clastic volcanic materials, regardless of what process fragmented the rock, how it was subsequently transported, what environment it was deposited in, or whether nonvolcanic material is mingled with the volcanic clasts. The United States Geological Survey defines volcaniclastics somewhat more narrowly, to include only rock composed of volcanic rock fragments that have been transported some distance from their place of origin. In the broad sense of the term, volcaniclastics includes pyroclastic rocks such as the Bandelier Tuff; cinder cones and other tephra deposits; the basal and capping breccia that characterize ʻaʻā lava flows; and lahars and debris flows of volcanic origin.Vincent 2000, pp.27-28 Volcaniclastics make up more of the volume of many volcanoes than do lava flows. Volcaniclastics may have contributed as much as a third of all sedimentation in the geolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a Natural satellite, moon onto its surface. Lava may be erupted at a volcano or through a Fissure vent, fracture in the Crust (geology), crust, on land or underwater, usually at temperatures from . The volcanic rock resulting from subsequent cooling is often also called ''lava''. A lava flow is an outpouring of lava during an effusive eruption. (An explosive eruption, by contrast, produces a mixture of volcanic ash and other fragments called tephra, not lava flows.) The viscosity of most lava is about that of ketchup, roughly 10,000 to 100,000 times that of water. Even so, lava can flow great distances before cooling causes it to solidify, because lava exposed to air quickly develops a solid crust that insulates the remaining liquid lava, helping to keep it hot and inviscid enough to continue flowing. Etymology The word ''lava'' comes from Ital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andesite
Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predominantly of sodium-rich plagioclase plus pyroxene or hornblende. Andesite is the extrusive equivalent of plutonic diorite. Characteristic of subduction zones, andesite represents the dominant rock type in island arcs. The average composition of the continental crust is andesitic. Along with basalts, andesites are a component of the Geology of Mars, Martian crust. The name ''andesite'' is derived from the Andes mountain range, where this rock type is found in abundance. It was first applied by Christian Leopold von Buch in 1826. Description Andesite is an aphanitic (fine-grained) to porphyritic (coarse-grained) igneous rock that is intermediate in its content of silica and low in alkali metals. It has less than 20% quartz and 10% feldspa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plagioclase
Plagioclase ( ) is a series of Silicate minerals#Tectosilicates, tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continuous solid solution series, more properly known as the plagioclase feldspar series. This was first shown by the German mineralogist Johann F. C. Hessel, Johann Friedrich Christian Hessel (1796–1872) in 1826. The series ranges from albite to anorthite endmembers (with respective compositions NaAlSi3O8 to CaAl2Si2O8), where sodium and calcium atoms can substitute for each other in the mineral's crystallography, crystal lattice structure. Plagioclase in hand samples is often identified by its polysynthetic crystal twinning or "phonograph record, record-groove" effect. Plagioclase is a major constituent mineral in Earth's crust and is consequently an important diagnostic tool in petrology for identifying the composition, origin and evolutio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Crag
High Crag stands at the southern end of the High Stile ridge which divides the valleys of Ennerdale and Buttermere in the west of the English Lake District. It is often climbed as part of a popular ridge walk, from Black Sail youth hostel, or from Buttermere via Scarth Gap. Panoramas of Great Gable and the Scafells are visible. Topography The Western Fells occupy a triangular sector of the Lake District, bordered by the River Cocker to the north east and Wasdale to the south east. Westwards the hills diminish toward the coastal plain of Cumberland. At the central hub of the high country are Great Gable and its satellites, while two principal ridges fan out on either flank of Ennerdale, the western fells in effect being a great horseshoe around this long wild valley.Alfred Wainwright: ''A Pictorial Guide to the Lakeland Fells, Volume 7 The Western Fells'': Westmorland Gazette (1966): The highest section of the northern branch is formed by the trio of Buttermere fells, High C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Liza
The River Liza flows through Ennerdale, a glacial valley in Cumbria, England. The river is allowed to flow freely as part of a rewilding project. The Liza flows from its source below Windy Gap on Great Gable through a steep-sided valley to Ennerdale Water. The river's catchment is in the Lake District National Park. Etymology The name of the Liza derives from the Old Norse ''ljós á'', conferring a meaning of "light (or shining) river". Rewilding The river is subject to the Wild Ennerdale Project which aims to introduce more wildlife to the Ennerdale Valley. The Wild Ennerdale Project uses a policy similar to managed retreat which means the river is subject to no human interference or maintenance such as dredging, straightening or even flood defences. This means the river is free to flood as the effects would be felt by very few people as the Ennerdale Valley is sparsely inhabited. The river is used as a spawning ground by Arctic char The Arctic char or Arctic charr (''Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black 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 About 50 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lank Rigg
Lank Rigg is a fell in the English Lake District. It stands to the south of Ennerdale in the Western Fells. A sprawling hill with gentle grassy slopes it can be climbed from various points on the Coldfell road. It carries various remains from ancient habitation. Topography The Western Fells occupy a triangular sector of the Lake District, bordered by the River Cocker to the north east and Wasdale to the south east. Westwards the hills diminish toward the coastal plain of Cumberland. At the central hub of the high country are Great Gable and its satellites, while two principal ridges fan out on either flank of Ennerdale, the western fells in effect being a great horseshoe around this long wild valley.Alfred Wainwright: ''A Pictorial Guide to the Lakeland Fells, Volume 7 The Western Fells'': Westmorland Gazette (1966): Lank Rigg is the highest of the group of fells at the extremity of the southern arm. The main watershed runs broadly westwards from Great Gable, dividing the he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
