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Klippe
350px, Schematic overview of a thrust system. The shaded material is called a window or fenster. The klippe is the isolated block of the nappe overlying autochthonous material. A klippe ( German for cliff">German language">German for cliff or crag; plural klippen or ''klippes'') is a geological feature of thrust fault terrains. The klippe is the remnant portion of a nappe after erosion has removed connecting portions of the nappe. This process results in an outlier of exotic, often nearly horizontally translated strata overlying autochthonous strata. Examples * Chief Mountain, Montana *Mount Yamnuska, Alberta *The Rock of Gibraltar *Acropolis of Athens, Greece * Bac Grillera, Catalonia, Spain. The nappe of which this klippe once formed part had its root in the northern part of the Pyrenees mountain range. Klippes may also be found in the Pre-Alps of Switzerland and some of the isolated mountains in Assynt, Sutherland, in NW Scotland.Whittow, John (1984). ''Dictionary of Ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nappe
In geology, a nappe or thrust sheet is a large sheetlike body of rock that has been moved more than or above a thrust fault from its original position. Nappes form in compressional tectonic settings like continental collision zones or on the overriding plate in active subduction zones. Nappes form when a mass of rock is forced (or "thrust") over another rock mass, typically on a low angle fault plane. The resulting structure may include large-scale recumbent folds, shearing along the fault plane,Twiss, Robert J. and Eldridge M. Moores, ''Structural Geology,'' W. H. Freeman, 1992, p. 236 imbricate thrust stacks, fensters and klippes. The term stems from the French word for ''tablecloth'' in allusion to a rumpled tablecloth being pushed across a table. History Nappes or nappe belts are a major feature of the European Alps, Dinarides, Carpathians and Balkans. Since the 19th century many geologists have uncovered areas with large-scale overthrusts. Some of these were su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrust System En
Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction to be applied to that system. The force applied on a surface in a direction perpendicular or normal to the surface is also called thrust. Force, and thus thrust, is measured using the International System of Units (SI) in newtons (symbol: N), and represents the amount needed to accelerate 1 kilogram of mass at the rate of 1 meter per second per second. In mechanical engineering, force orthogonal to the main load (such as in parallel helical gears) is referred to as static thrust. Examples A fixed-wing aircraft propulsion system generates forward thrust when air is pushed in the direction opposite to flight. This can be done by different means such as the spinning blades of a propeller, the propelling jet of a jet engine, or by ejecting hot gases from a rocke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Of Gibraltar
The Rock of Gibraltar (from the Arabic name Jabal Ṭāriq , meaning "Mountain of Tariq ibn Ziyad, Tariq") is a monolithic limestone mountain high dominating the western entrance to the Mediterranean Sea. It is situated near the end of a narrow -long promontory stretching due south into the Mediterranean Sea and is located within the British territory of Gibraltar. The rock is 27 km northeast of Tarifa, Spain, the southwestern tip of Europe on the Iberian Peninsula. The rock serves as a fortress and contains a labyrinthine network of man-made tunnels known as the Tunnels of Gibraltar. Most of the Rock's upper area comprises a Gibraltar Nature Reserve, nature reserve which is home to about 300 Barbary macaques in Gibraltar, Barbary macaques. It is a major tourist attraction. The Rock of Gibraltar, the northern of the two historic Pillars of Hercules, was known to the Ancient Romans, Romans as ''Mons Calpe'' ("Mount Calpe"); the southern Pillar of Hercules on the African side o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. The Jurassic constitutes the second and middle period of the Mesozoic, Mesozoic Era as well as the eighth period of the Phanerozoic, Phanerozoic Eon and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province (CAMP). The beginning of the Toarcian Age started around 183 million years ago and is marked by the Toarcian Oceanic Anoxic Event, a global episode of Anoxic event, oceanic anoxia, ocean acidification, and elevated global temperatures associated with extinctions, likely caused by the eruption of the Kar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beckov Castle
Beckov Castle (; ) is a castle in ruins located above the former town of Beckov in Nové Mesto nad Váhom District, Trenčín Region, western Slovakia. It is a national cultural monument and its present appearance is the result of renovations in the last quarter of the twentieth century and since 2002. Name The original name of the castle was ''Blundix'' (Latin version). The name was derived from Slavic "''Bludište''" reflecting the difficult terrain in the areaMartin Štefánik - Ján Lukačka et al. 2010, Lexikón stredovekých miest na Slovensku, Historický ústav SAV, Bratislava, 2010, p. 104, . http://forumhistoriae.sk/-/lexikon-stredovekych-miest-na-slovensku (''blúdiť'' - to wander, in the modern Slovak language ''bludište/bludisko'' - a maze). Later, the name of the neighbouring village Beckov was adopted also as the name of the castle. History Great Moravia–1388 The Beckov Cliff is a klippe of the Hronic nappe well exposed by the Váh River. The castle is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assynt
Assynt ( or ) is a sparsely populated area in the south-west of Sutherland, lying north of Ullapool on the west coast of Scotland. Assynt is known for its landscape and its remarkable mountains, which have led to the area, along with neighbouring Coigach, being designated as the Assynt-Coigach National Scenic Area, one of 40 such areas in Scotland. The western part of Assynt has many distinctively shaped mountains, including Quinag, Canisp, Suilven and Ben More Assynt, that rise steeply from the surrounding "cnoc and lochan" scenery. These can often appear higher than their actual height would indicate due to their steep sides and the contrast with the moorland from which they rise. Many of the most distinctive peaks such as Suilven were formed during the last Ice Age, when they were left exposed above the ice sheet as nunataks, and they now remain as inselbergs of highly eroded Torridonian sandstone sitting on a bedrock of much older Lewisian gneiss. The Moine Thrust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-Alps
The Alpine foothills, or Prealps (; ; ; ), may refer generally to any foothills at the base of the Alps in Europe. They are the transition zone between the High Alps and the Swiss Plateau and the Bavarian Alpine Foreland in the north, as well as to the Pannonian Basin (Alpokalja) in the east, the Padan Plain in the south and the Rhone Valley in the west. Classification The Alpine foothills comprise: *The French Prealps ** Savoy Prealps **Dauphiné Prealps ** Provence Prealps *The Swiss Prealps *The Northern Prealps, part of the Northern Limestone Alps: **Bavarian Prealps in southeastern Germany **Salzburg Prealps, part of the Salzkammergut Mountains in Austria **Upper Austrian Prealps ** Lower Austrian Prealps, leading to the Vienna Woods *The Southeastern Prealps, borderline of the Alps to the Pannonian Basin in Austria and Slovenia: **Prealps East of the Mur **Lavanttal Alps **Styrian Prealps **Slovenian Prealps, Pohorje *The Southern or Italian Prealps, usually divided into: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalonia
Catalonia is an autonomous community of Spain, designated as a ''nationalities and regions of Spain, nationality'' by its Statute of Autonomy of Catalonia of 2006, Statute of Autonomy. Most of its territory (except the Val d'Aran) is situated on the northeast of the Iberian Peninsula, to the south of the Pyrenees mountain range. Catalonia is administratively divided into four Provinces of Spain, provinces or eight Vegueries of Catalonia, ''vegueries'' (regions), which are in turn divided into 43 Comarques of Catalonia, ''comarques''. The capital and largest city, Barcelona, is the second-most populous Municipalities in Spain, municipality in Spain and the fifth-most populous List of metropolitan areas in Europe, urban area in the European Union. > > > ''Catalonia'' theoretically derived. During the Middle Ages, Byzantine Empire, Byzantine chroniclers claimed that ''Catalania'' derives from the local medley of Goths with Alans, initially constituting a ''Goth-Alania''. Othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acropolis Of Athens
The Acropolis of Athens (; ) is an ancient citadel located on a rocky outcrop above the city of Athens, Greece, and contains the remains of several Ancient Greek architecture, ancient buildings of great architectural and historical significance, the most famous being the Parthenon. The word ''Acropolis'' is . The term acropolis is generic and there are many other acropoleis in Greece. During ancient times the Acropolis of Athens was also more properly known as Cecropia, after the legendary serpent-man Cecrops I, Cecrops, the supposed first Athenian king. While there is evidence that the hill was inhabited as early as the 4th millennium BC, it was Pericles (–429 BC) in the fifth century BC who coordinated the construction of the buildings whose present remains are the site's most important ones, including the Parthenon, the Propylaia_(Acropolis_of_Athens), Propylaea, the Erechtheion and the Temple of Athena Nike. The Parthenon and the other buildings were seriously damaged during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Yamnuska
Mount John Laurie is a mountain in the Canadian Rockies, in Alberta's Municipal District of Bighorn No. 8. Various names Officially named Mount John Laurie in 1961, it is also known as Mount Laurie, or by its original Nakoda language, Stoney Nakoda name ''Îyâmnathka'', borrowed into English as Mount Yamnuska or simply Yamnuska. is a Compound (linguistics), compound that includes root words meaning "mountain" and "flat", however it is usually translated more figuratively as "flat-faced mountain". John Lee Laurie, 1899–1959, was a founder of the Indian Association of Alberta. The mountain's 1961 renaming came at the request of the Stoney Nakoda First Nation. Laurie, an educator and political activist, served as secretary of the Indian Association of Alberta from 1944 to 1956, promoting the causes of First Nations in Alberta. Peak and climbing Standing at approximately above sea level, Mount John Laurie is the last mountain on the north side of the Bow River valley (Bow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Language
German (, ) is a West Germanic language in the Indo-European language family, mainly spoken in Western Europe, Western and Central Europe. It is the majority and Official language, official (or co-official) language in Germany, Austria, Switzerland, and Liechtenstein. It is also an official language of Luxembourg, German-speaking Community of Belgium, Belgium and the Italian autonomous province of South Tyrol, as well as a recognized national language in Namibia. There are also notable German-speaking communities in other parts of Europe, including: Poland (Upper Silesia), the Czech Republic (North Bohemia), Denmark (South Jutland County, North Schleswig), Slovakia (Krahule), Germans of Romania, Romania, Hungary (Sopron), and France (European Collectivity of Alsace, Alsace). Overseas, sizeable communities of German-speakers are found in the Americas. German is one of the global language system, major languages of the world, with nearly 80 million native speakers and over 130 mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chief Mountain
Chief Mountain ('' Blackfoot: Ninaistako'') () is located in the U.S. state of Montana on the eastern border of Glacier National Park and the Blackfeet Indian Reservation. The mountain is one of the most prominent peaks and rock formations along the Rocky Mountain Front, a long overthrust fault, known as the Lewis Overthrust, which extends from central Montana into southern Alberta, Canada. Geology Chief Mountain is an example of a klippe. It consists of a Precambrian block which rests directly above much younger Cretaceous gray shales. The 1450-1400 million year old Precambrian rocks are 1300-1400 million years older than the Cretaceous rocks at the base of the mountain. Having an older layer of rock juxtaposed atop younger basement rocks is found on occasion in thrust faults and is commonplace along the Lewis Overthrust which extends from central Montana to far southern Alberta. The surrounding portion of the thrust sheet has been removed by erosion leaving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
