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Alb (High Rhine)
The Alb (also: ''Hauensteiner Alb'') is a river in the southern Black Forest. It arises from two headwaters, the Menzenschwander Alb and Bernauer Alb, and flows in a southerly direction. It ends after (including ''Menzenschwander Alb'') at a confluence with the High Rhine at Albbruck. Etymology The name ''Alb'' is possibly derived from a Proto-Indo-European word ''*albhos'' meaning "white" or perhaps "river". Headwaters The headwaters of the Menzenschwander Alb lie on the southern slope of the Feldberg mountain range in the Landkreis of Breisgau-Hochschwarzwald. The Bernauer Alb rises on the southern slope of the Herzogenhorn. The Menzenschwander Alb is about long and flows south-east past Menzenschwand. The Bernauer Alb is about long; it also flows south-east, past Bernau. The confluence of the two headwaters is at ''Glashofsäge'', about from Sankt Blasien. The valleys of both headwaters were widened by glaciers during the ice age. Both are about high and dom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swabian Alb
The Swabian Jura (german: Schwäbische Alb , more rarely ), sometimes also named Swabian Alps in English, is a mountain range in Baden-Württemberg, Germany, extending from southwest to northeast and in width. It is named after the region of Swabia. The Swabian Jura occupies the region bounded by the Danube in the southeast and the upper Neckar in the northwest. In the southwest it rises to the higher mountains of the Black Forest. The highest mountain of the region is the Lemberg (). The area's profile resembles a high plateau, which slowly falls away to the southeast. The northwestern edge is a steep escarpment (called the Albtrauf or Albanstieg, rising up , covered with forests), while the top is flat or gently rolling. In economic and cultural terms, the Swabian Jura includes regions just around the mountain range. It is a popular recreation area. Geology The geology of the Swabian Jura is mostly limestone, which formed the seabed during the Jurassic period. The sea r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roche Moutonnée
In glaciology, a roche moutonnée (or sheepback) is a rock formation created by the passing of a glacier. The passage of glacial ice over underlying bedrock often results in asymmetric erosional forms as a result of abrasion on the "stoss" (upstream) side of the rock and plucking on the "lee" (downstream) side. These erosional features are seen on scales of less than a metre to several hundred metres.Douglas Benn and David Evans, ''Glaciers & Glaciation,'' Arnold, London, 1st ed. 1998 Etymology The 18th-century Alpine explorer Horace-Bénédict de Saussure coined the term ''Roches moutonnées'' in 1786. He saw in these rocks a resemblance to the wigs that were fashionable amongst French gentry in his era and which were smoothed over with mutton fat (hence ''moutonnée'') so as to keep the hair in place. The French term is often incorrectly interpreted as meaning "sheep rock". Description The contrasting appearance of the erosional stoss and lee aspects is very defined on r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alb Basin
The Alb Reservoir (german: Albstausee), or Alb Basin (''Albbecken'') is a storage reservoir in the valley of the River Alb near St. Blasien in the Southern Black Forest in south Germany. It is part of the pumped storage network of the Schluchseewerk based at Laufenburg and lies between the lake of Schluchsee and the Rhine near Waldshut. The barrier is a 28-metre-high gravity dam. Geography The Alb Reservoir lies in the valley of the Alb at about 737 metres above sea level (''Normalnull''). The nearest settlement is the town of St. Blasien (760 m ü. NN), whose trading estate in the south reaches the end of the lake. The reservoir lies mostly on the territory of the town of St. Blasien; a smaller part of the lake in the west and the entire dam wall lie within the municipality of Dachsberg. The ''Landesstraße'' 154 road which runs through the Alb valley, the ''Albtalstraße'' or "Alb Valley Road", leaves Albbruck on the Rhine and makes its way up the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam A dam is a barrier that stops or restricts the flow of surface water or underground streams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schwarza (Saale)
The Schwarza is a left tributary of the Saale in Thuringia, Germany. The Schwarza is long. Its source is in the Thuringian Forest, near Neuhaus am Rennweg. It flows into the Saale in Rudolstadt. Other towns on the Schwarza are Schwarzburg and Bad Blankenburg. It has 50 tributaries, the largest being the Lichte, the Sorbitz, the Werre and the Rinne. Its name, meaning "black river", comes from its dark colour in its upper course and the thick forest which originally overshadowed the narrow valley. The Schwarza valley (german: Schwarzatal) parallels the axis of the Schwarzburg anticline (''Schwarzburger Sattel''), a structure that divides the Thuringian forest to the northwest from the Thuringian Highland to the southeast. The Schwarzburg Anticline was created by the collision between Laurentia and Gondwana around 350 million years ago. The rock of the Schwarzburg Anticline is metamorphic, with a core of ordovician rock, largely quartzite. The river is geologically unusual for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Häusern
Häusern is a municipality in the district of Waldshut in Baden-Württemberg in Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe .... References Waldshut (district) Baden {{Waldshut-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gradient
In vector calculus, the gradient of a scalar-valued differentiable function of several variables is the vector field (or vector-valued function) \nabla f whose value at a point p is the "direction and rate of fastest increase". If the gradient of a function is non-zero at a point , the direction of the gradient is the direction in which the function increases most quickly from , and the magnitude of the gradient is the rate of increase in that direction, the greatest absolute directional derivative. Further, a point where the gradient is the zero vector is known as a stationary point. The gradient thus plays a fundamental role in optimization theory, where it is used to maximize a function by gradient ascent. In coordinate-free terms, the gradient of a function f(\bf) may be defined by: :df=\nabla f \cdot d\bf where ''df'' is the total infinitesimal change in ''f'' for an infinitesimal displacement d\bf, and is seen to be maximal when d\bf is in the direction of the gradi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crust (geology)
In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase (solid crust vs. liquid mantle). The crusts of Earth, Mercury, Venus, Mars, Io, the Moon and other planetary bodies formed via igneous processes and were later modified by erosion, impact cratering, volcanism, and sedimentation. Most terrestrial planets have fairly uniform crusts. Earth, however, has two distinct types: continental crust and oceanic crust. These two types have different chemical compositions and physical properties and were formed by different geological processes. Types of crust Planetary geologists divide crust into three categories based on how and when it formed. Primary crust / primordial crust This is a planet's "original" crust. It forms from solidification of a magma ocean. Towa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tectonic
Tectonics (; ) are the processes that control the structure and properties of the Earth's crust and its evolution through time. These include the processes of mountain building, the growth and behavior of the strong, old cores of continents known as cratons, and the ways in which the relatively rigid plates that constitute the Earth's outer shell interact with each other. Tectonics also provide a framework for understanding the earthquake and volcanic belts that directly affect much of the global population. Tectonic studies are important as guides for economic geologists searching for fossil fuels and ore deposits of metallic and nonmetallic resources. An understanding of tectonic principles is essential to geomorphologists to explain erosion patterns and other Earth surface features. Main types of tectonic regime Extensional tectonics Extensional tectonics is associated with the stretching and thinning of the crust or the lithosphere. This type of tectonics is found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tusculum
Tusculum is a ruined Roman city in the Alban Hills, in the Latium region of Italy. Tusculum was most famous in Roman times for the many great and luxurious patrician country villas sited close to the city, yet a comfortable distance from Rome (notably the villas of Cicero and Lucullus). Location Tusculum is located on Tuscolo hill on the northern edge of the outer crater rim of the Alban volcano. The volcano itself is located in the Alban Hills south of the present-day town of Frascati. The summit of the hill is above sea level and affords a view of the Roman Campagna, with Rome lying to the north-west. It had a strategic position controlling the route from the territory of the Aequi and the Volsci to Rome which was important in earlier times. Later Rome was reached by the Via Latina (from which a branch road ascended to Tusculum, while the main road passed through the valley to the south of it), or by the Via Labicana to the north. Most of the ancient city and the acropol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathedral
A cathedral is a church that contains the '' cathedra'' () of a bishop, thus serving as the central church of a diocese, conference, or episcopate. Churches with the function of "cathedral" are usually specific to those Christian denominations with an episcopal hierarchy, such as the Catholic, Eastern Orthodox, Anglican, and some Lutheran churches.New Standard Encyclopedia, 1998 by Standard Educational Corporation, Chicago, Illinois; page B-262c Church buildings embodying the functions of a cathedral first appeared in Italy, Gaul, Spain, and North Africa in the 4th century, but cathedrals did not become universal within the Western Catholic Church until the 12th century, by which time they had developed architectural forms, institutional structures, and legal identities distinct from parish churches, monastic churches, and episcopal residences. The cathedral is more important in the hierarchy than the church because it is from the cathedral that the bishop governs the area unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classicist
Classics or classical studies is the study of classical antiquity. In the Western world, classics traditionally refers to the study of Classical Greek and Roman literature and their related original languages, Ancient Greek and Latin. Classics also includes Greco-Roman philosophy, history, archaeology, anthropology, art, mythology and society as secondary subjects. In Western civilization, the study of the Greek and Roman classics was traditionally considered to be the foundation of the humanities, and has, therefore, traditionally been the cornerstone of a typical elite European education. Etymology The word ''classics'' is derived from the Latin adjective '' classicus'', meaning "belonging to the highest class of citizens." The word was originally used to describe the members of the Patricians, the highest class in ancient Rome. By the 2nd century AD the word was used in literary criticism to describe writers of the highest quality. For example, Aulus Gellius, in his ''Att ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
