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Stirling Sill
The Stirling Sill is an outcropping of a large quartz-dolerite intrusion or sill that underlies a large part of central Scotland, and may be contiguous at great depth. The sill is of very late Carboniferous age or more probably Permian, as it penetrates the coal measures, often in bedding planes between the various strata. In places, it rises through fractures in the strata to a new level, forming features that, at the surface, would be called dikes. At its outcrop on the west, the sill generally lies towards the base of the Carboniferous sequence, and just above the calciferous sandstone deposits and lavas, as can be seen in the upper part of the valley of the Bannock Burn. However, to the consternation of miners, it occupies a higher position amongst the useful strata towards the east, and in places has destroyed the coal, while in others the effect of the sill has been to convert the coal to more valuable anthracite. The slope of the Abbey Craig, or the Stirling Castle rock, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz-dolerite
Quartz dolerite or quartz diabase is an intrusive rock similar to dolerite (also called diabase), but with an excess of quartz. Dolerite is similar in composition to basalt, which is volcanic, and gabbro, which is plutonic. The differing crystal sizes are due to the different rate of cooling, basalt cools quickly and has a very fine structure, while gabbro cools very slowly, at great depth, and large crystals develop. Dolerite is intermediate. Quartz dolerite is very common in central Scotland, in intrusive formations, sills and dykes, and is widely quarried for roadstone. It was used with some success for making millstones at one time, the Millstone Grit part of the carboniferous strata not being present in Scotland, but it is no longer used for this purpose, and would probably be illegal now due to the formation of small quartz and other silicate particles, which could cause the serious respiratory disease silicosis Silicosis is a form of occupational lung disease caused b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochil Fault
The Ochil Fault is the geological feature which defines the southern edge of the Ochil Hills escarpment in Scotland. North of the fault, Devonian lava flows and pyroclastic deposits slope gently down, thinning towards the north. These are in part overlain by Old Red Sandstone rocks formed later in the Devonian period. Because the deposits thin towards the north, and there are few signs of volcanic necks within the Ochil Hills themselves, it is thought that the eruptive centres were south of the fault, however these are buried deep beneath the Carboniferous rocks including coal measures which are found beneath the low-lying carse lands to the south. To put this in perspective, the prominent hill Dumyat which defines the western extremity of the Ochil Hills has a height of . The nearest colliery, Manor Powis, approximately south of the fault, was approximately the same depth, in carse land that is scarcely above sea level, and was mining coal from Carboniferous strata at least ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sills (geology)
Sill may refer to: * Sill (dock), a weir at the low water mark retaining water within a dock * Sill (geology), a subhorizontal sheet intrusion of molten or solidified magma * Sill (geostatistics) * Sill (river), a river in Austria * Sill plate, a construction element **Window sill, a more specific construction element than above **Automotive sill, also known as a rocker panel; see Glossary of automotive design#R * Fort Sill, a United States Army post near Lawton, Oklahoma * Mount Sill, a California mountain * A shoal near the mouth of a fjord, remnant of an extinct glacier’s terminal moraine People Sill * Anna Peck Sill (1816-1889), American educator * Edward Rowland Sill (1841–1887), American poet and educator * Frederick Herbert Sill (1874–1952), American Episcopalian priest and educator * George G. Sill (1829–1907), American politician from Connecticut * Joel Sill (born 1946), American music producer * John M. B. Sill (1831–1901), American diplomat * Joshua W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mines In Scotland
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 * Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Scotland
The geology of Scotland is unusually varied for a country of its size, with a large number of differing geological features.Keay & Keay (1994) page 415. There are three main geographical sub-divisions: the Highlands and Islands is a diverse area which lies to the north and west of the Highland Boundary Fault; the Central Lowlands is a rift valley mainly comprising Palaeozoic formations; and the Southern Uplands, which lie south of the Southern Uplands Fault, are largely composed of Silurian deposits. The existing bedrock includes very ancient Archean gneiss, metamorphic beds interspersed with granite intrusions created during the Caledonian mountain building period (the Caledonian orogeny), commercially important coal, oil and iron bearing carboniferous deposits and the remains of substantial Palaeogene volcanoes. During their formation, tectonic movements created climatic conditions ranging from polar to desert to tropical and a resultant diversity of fossil remains. Scotland h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hills Of The Scottish Midland Valley
A hill is a landform that extends above the surrounding terrain. It often has a distinct Summit (topography), summit. Terminology The distinction between a hill and a mountain is unclear and largely subjective, but a hill is universally considered to be not as tall, or as Grade (slope), steep as a mountain. Geographers historically regarded mountains as hills greater than above sea level, which formed the basis of the plot of the 1995 film ''The Englishman who Went up a Hill but Came down a Mountain''. In contrast, hillwalkers have tended to regard mountains as peaks above sea level. The ''Oxford English Dictionary'' also suggests a limit of and Whittow states "Some authorities regard eminences above as mountains, those below being referred to as hills." Today, a mountain is usually defined in the UK and Ireland as any summit at least high, while the official UK government's definition of a mountain is a summit of or higher. Some definitions include a topographical pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambusbarron
Cambusbarron is a village in Stirling, Scotland. In the 2001 census, it had a population of 3,224. There is evidence of settlement at the site since the Bronze Age, and several forts dating from the Iron Age have been found near the village. One such fort is located at Gillies Hill, a large semi-natural ancient woodland area with a range of unusual wildlife, thought to be the site of Robert the Bruce's camp shortly before the Battle of Bannockburn. Cambusbarron grew during the nineteenth century due to the presence of the Hayford Mill, a large wool-spinning mill and tweed manufacturer, on the outskirts of the village. Several limestone mines and quartz-dolerite quarries have been active in the area around Cambusbarron during the twentieth century. There are three listed buildings in the village. Notable former residents include evangelist Henry Drummond, documentary writer John Grierson and footballer Frank Beattie. History Early history Archeological evidence suggests that a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abbey Craig
The Abbey Craig is the hill upon which the Wallace Monument stands, at Causewayhead, just to the north of Stirling, Scotland. Physical geography The Abbey Craig is part of a complex quartz-dolerite intrusion or sill within carboniferous strata, at the western edge of the Central Coal Field, known as the Stirling Sill. The quartz-dolerite, being much harder than the surrounding coal measures, has been exposed due to erosion, including by glaciation. The characteristic crag and tail shape of the crag reflects this glacial shaping. Toponymy ''Craig'', or ''crag'', describes a post-glacial crag and tail landscape feature. The abbey is Cambuskenneth Abbey, on the north bank of the River Forth, about 1 km to the south. History The hill is the site of William Wallace's HQ ahead of the battle of Stirling Bridge The Battle of Stirling Bridge ( gd, Blàr Drochaid Shruighlea) was a battle of the First War of Scottish Independence. On 11 September 1297, the forces of A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kincardine-on-Forth
Kincardine ( ; gd, Cinn Chàrdainn) or Kincardine-on-Forth is a small town on the north shore of the Firth of Forth, in Fife, Scotland. The town was given the status of a burgh of barony in 1663. It was at one time a reasonably prosperous minor port. The townscape retains many good examples of Scottish vernacular buildings from the 17th, 18th and early 19th centuries, although it was greatly altered during the construction of Kincardine Bridge in 1932–1936. It is in the civil parish of Tulliallan. Etymology The name ''Kincardine'', recorded in 1540 as ''Kincarne'', may be of either Pictish or Gaelic origin (It is also recorded as ''Kincarnyne''). The second element is Pictish ''*carden'', conceivably loaned into Gaelic, meaning "woodland" or perhaps "enclosure, encampment" (Middle Welsh ''cardden''). The first element is the Gaelic ''ceann'', "head end", but in view of the second element's "Pictish" distribution, it is most appropriately seen as an adaptation or translati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stirling
Stirling (; sco, Stirlin; gd, Sruighlea ) is a city in central Scotland, northeast of Glasgow and north-west of Edinburgh. The market town, surrounded by rich farmland, grew up connecting the royal citadel, the medieval old town with its merchants and tradesmen, the Old Bridge and the port. Located on the River Forth, Stirling is the administrative centre for the Stirling council area, and is traditionally the county town of Stirlingshire. Proverbially it is the strategically important "Gateway to the Highlands". It has been said that "Stirling, like a huge brooch clasps Highlands and Lowlands together". Similarly "he who holds Stirling, holds Scotland" is often quoted. Stirling's key position as the lowest bridging point of the River Forth before it broadens towards the Firth of Forth made it a focal point for travel north or south. When Stirling was temporarily under Anglo-Saxon sway, according to a 9th-century legend, it was attacked by Danish invaders. The sound of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochil Hills
The Ochil Hills (; gd, Monadh Ochail is a range of hills in Scotland north of the Forth valley bordered by the towns of Stirling, Alloa, Kinross, Auchterarder and Perth. The only major roads crossing the hills pass through Glen Devon/ Glen Eagles and Glenfarg, the latter now largely replaced except for local traffic by the M90 Edinburgh-Perth motorway cutting through the eastern foothills. The hills are part of a Devonian lava extrusion whose appearance today is largely due to the Ochil Fault which results in the southern face of the hills forming an escarpment. The plateau is undulating with no prominent peak, the highest point being Ben Cleuch at . The south-flowing burns have cut deep ravines including Dollar Glen, Silver Glen and Alva Glen, often only passable with the aid of wooden walkways. The extent of the Ochils is not well-defined but by some definitions continues to include the hills of north Fife. Historically, the hills, combined with the town's site at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrace (geology)
In geology, a terrace is a step-like landform. A terrace consists of a flat or gently sloping geomorphic surface, called a tread, that is typically bounded on one side by a steeper ascending slope, which is called a "riser" or "scarp". The tread and the steeper descending slope (riser or scarp) together constitute the terrace. Terraces can also consist of a tread bounded on all sides by a descending riser or scarp. A narrow terrace is often called a bench.Howard, A.D., R.W. Fairbridge, J.H. Quinn, 1968, "Terraces, Fluvial—Introduction", in R.W. Fairbridge, ed., ''The Encyclopedia of Geomorphology: Encyclopedia of Earth Science Series'', vol. 3. Reinhold Book Corporation. New York, New York.Jackson, J.A., 1997, ''Glossary of Geology''. American Geological Institute. Alexandria, Virginia. The sediments underlying the tread and riser of a terrace are also commonly, but incorrectly, called terraces, leading to confusion. Terraces are formed in various ways. Fluvial terraces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
