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Craiglockhart Hill
Craiglockhart Hill is a combination of two summits, Easter and Wester Craiglockhart, in the suburb of Craiglockhart, Edinburgh.https://edinburghgeolsoc.org/downloads/rigsleaflet_craiglockharta4.pdf Craiglockart and Edinburgh's Seven Hills Easter Craiglockhart Hill's summit is 158m high. In 2004 this hill was designated a local nature reserve. Wester Craiglockhart Hill has a summit of 175m. The hills are formed of Carboniferous basaltic lava and ash on sandstone. On part of Wester Craiglockhart an exposed upper lava deposit about 30 metres thick features a central area of well-formed columns. When this lava crystallized, a series of hexagonal cracks produced the columnar structure. The valley between the two summits is called Glenlockhart. The valley took its present form over 17,000 years ago when an ice sheet covered the area. Meltwater from the Water of Leith The Water of Leith (Scottish Gaelic: ''Uisge Lìte'') is the main river flowing near central Edinburgh, S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edinburgh
Edinburgh ( ; gd, Dùn Èideann ) is the capital city of Scotland and one of its 32 Council areas of Scotland, council areas. Historically part of the county of Midlothian (interchangeably Edinburghshire before 1921), it is located in Lothian on the southern shore of the Firth of Forth. Edinburgh is Scotland's List of towns and cities in Scotland by population, second-most populous city, after Glasgow, and the List of cities in the United Kingdom, seventh-most populous city in the United Kingdom. Recognised as the capital of Scotland since at least the 15th century, Edinburgh is the seat of the Scottish Government, the Scottish Parliament and the Courts of Scotland, highest courts in Scotland. The city's Holyrood Palace, Palace of Holyroodhouse is the official residence of the Monarchy of the United Kingdom, British monarchy in Scotland. The city has long been a centre of education, particularly in the fields of medicine, Scots law, Scottish law, literature, philosophy, the sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Craiglockhart
Craiglockhart (; gd, Creag Longairt) is a suburb in the south west of Edinburgh, Scotland, lying between Colinton to the south, Morningside to the east Merchiston to the north east, and Longstone and Kingsknowe to the west. The Water of Leith is also to the west. History The name is first recorded in 1278 as "Crag quam Stephanus Loccard miles tenuit", thus "Craig (or rock) of Loccard". The family, whose name was changed to Lockhart, are credited by Historic Scotland with building Craiglockhart Castle in the fifteenth century. The oldest "structure" in the area is the remains of a vitrified fort on the top of Wester Craiglockhart Hill, which is of prehistoric origin. This was somewhat mutilated by the addition of gun-emplacements in World War II, guarding against aerial attack. Excavations show the fort was re-occupied during Roman times. Craiglockhart Castle dates from the 15th century but is now ruined. The hill is also a Site of Special Scientific Interest (SSSI) due to i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin '' carbō'' ("coal") and '' ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian and the later Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Tetrapods (four limbed vertebrates), which had originated from lobe-finned fish during the preceding Devonian, became pentadactylous in and diversified during the Carboniferous, including early amphibian line ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...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 moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or underwater, usually at temperatures from . The volcanic rock resulting from subsequent cooling is also often 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. The word ''lava'' comes from Italian and is probably derived from the Latin word ''labes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Ash
Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, created during volcano, volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to refer to all explosive eruption products (correctly referred to as ''tephra''), including particles larger than 2 mm. Volcanic ash is formed during explosive volcanic eruptions when dissolved gases in magma expand and escape violently into the atmosphere. The force of the gases shatters the magma and propels it into the atmosphere where it solidifies into fragments of volcanic rock and glass. Ash is also produced when magma comes into contact with water during phreatomagmatic eruptions, causing the water to explosively flash to steam leading to shattering of magma. Once in the air, ash is transported by wind up to thousands of kilometres away. Due to its wide dispersal, ash can have a number of impacts on society, including animal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columnar Jointing
Columnar jointing is a geological structure where sets of intersecting closely spaced fractures, referred to as Joint (geology), joints, result in the formation of a regular array of polygonal Prism (geometry), prisms, or columns. Columnar jointing occurs in many types of igneous rocks and forms as the rock cools and contracts. Columnar jointing can occur in cooling lava flows and ashflow tuffs (ignimbrites), as well as in some shallow intrusions. Columnar jointing also occurs rarely in sedimentary rocks if they have been heated by nearby hot magma. The columns can vary from 3 meters to a few centimeters in diameter, and can be as much as 30 meters tall. They are typically parallel and straight, but can also be curved and vary in diameter. An array of regular, straight, and larger-diameter columns is called a colonnade; an irregular, less-straight, and smaller-diameter array is termed an entablature. The number of sides of the individual columns can vary from 3 to 8, with 6 sides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Of Leith
The Water of Leith (Scottish Gaelic: ''Uisge Lìte'') is the main river flowing near central Edinburgh, Scotland, and flows into the port of Leith where it flows into the sea via the Firth of Forth. Name The name ''Leith'' may be of Brittonic origin and derived from ''*lejth'' meaning 'damp, moist' (Welsh ''llaith''). It is less likely that the name derives from the Old Norse ''lodda'' meaning a river. The Gaelic form of the name is ''Lìte'' (Leith), with ''Uisge Lìte'' being the full translation of "Water of Leith". The ''Dictionary of the Scots Language'' defines the term "water" here as "''A large stream, usu. thought of as intermediate in size between a Burn and a river''" Course It is long and rises in the Colzium Springs at Millstone Rig of the Pentland Hills. It travels through Harperrig Reservoir, past the ruins of Cairns Castle, through Balerno, Currie, Juniper Green, Colinton, Slateford, Longstone, Saughton, Balgreen, Roseburn, West Coates and on to the nea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hills Of Edinburgh
Edinburgh, the capital of Scotland, is traditionally said to have been " built on Seven Hills", in an allusion to the seven hills of Rome. While there is considerable room for debate as to which hills are included and excluded from the seven, seven possibilities are listed in an old rhyme: :Abbey, Calton, Castle grand, :Southward see St Leonards stand, :St Johns and Sciennes as two are given, :And Multrees makes Seven. The Pentland Hills are also just to the south of the city, and their lower slopes are within the city boundary, especially around Hillend, Swanston and Balerno. Some of the hills are formed from dead volcanoes that last erupted 400 million years ago, and all show the effect of glaciation. The tale of the seven hills of Edinburgh is popular enough that several local business take their name from it, including a dentist, a tour company, and a cèilidh band. Traditional Seven There is some argument as to which the seven are. Arthur's Seat and the Braid Hill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
