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Hassel Forebay
The Hassel Auxiliary Dam or Hassel Dam at en.structurae.de. Accessed on 23 Jan 10. (german: Hasselvorsperre or ''Vorsperre Hassel'') is an auxiliary dam or pre-dam on the in the of central . It is located near |
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 between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harz (district)
Harz is a district in Saxony-Anhalt, Germany. Its area is . History The district was established by merging the former districts of Halberstadt, Wernigerode and Quedlinburg as well as the city of Falkenstein (from the district of Aschersleben-Staßfurt) as part of the reform of 2007. Towns and municipalities The district Harz consists of the following subdivisions: See also *Ilsenburg (Verwaltungsgemeinschaft) Ilsenburg (Harz) was a ''Verwaltungsgemeinschaft'' ("collective municipality") in the district of Harz, in Saxony-Anhalt, Germany. The seat of the ''Verwaltungsgemeinschaft'' was in Ilsenburg. It was disbanded in July 2009. The ''Verwaltungsgemei ... References Districts of Saxony-Anhalt Harz {{Harz-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-dam
A forebay is an artificial pool of water in front of a larger body of water. The larger body of water may be natural or man-made. at www.wisegeek.com. Retrieved on 13 Jun 2013 Forebays have a number of functions. They are used in to act as a buffer during or s, impounding water and releasing in a controlled way into the larger waterbody. They may be used upstream of |
Rappbode Reservoir
The Rappbode is a right-hand, southwestern tributary of the River Bode in the Harz mountains in the German state of Saxony-Anhalt. In its lower reaches it is impounded by the Rappbode Dam, the largest dam in the Harz. The Rappbode rises east of the B 4 federal road near the ''Jägerfleck'' at the junction of the three federal states of Lower Saxony, Saxony-Anhalt and Thuringia. Its source is about southwest of Benneckenstein and southeast of Hohegeiß at an elevation of above sea level. On the opposite side of the B 4 there are numerous source streams of the river Zorge. The Rappbode flows in a mainly northeastern direction through the villages of Benneckenstein and Trautenstein, before it enters the Rappbode Auxiliary Dam and, shortly thereafter, the Rappbode Dam itself. It is united with the Bode further downstream at the Wendefurth Dam downstream. See also *List of rivers of Saxony-Anhalt A list of rivers of Saxony-Anhalt, Germany: A * Aland * Aller * Allerbach, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harz Mountains
The Harz () is a highland area in northern Germany. It has the highest elevations for that region, and its rugged terrain extends across parts of Lower Saxony, Saxony-Anhalt, and Thuringia. The name ''Harz'' derives from the Middle High German word ''Hardt'' or ''Hart'' (hill forest). The name ''Hercynia'' derives from a Celtic name and could refer to other mountain forests, but has also been applied to the geology of the Harz. The Brocken is the highest summit in the Harz with an elevation of above sea level. The Wurmberg () is the highest peak located entirely within the state of Lower Saxony. Geography Location and extent The Harz has a length of , stretching from the town of Seesen in the northwest to Eisleben in the east, and a width of . It occupies an area of , and is divided into the Upper Harz (''Oberharz'') in the northwest, which is up to 800 m high, apart from the 1,100 m high Brocken massif, and the Lower Harz (''Unterharz'') in the east which is up to aroun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hasselfelde
Hasselfelde is a town in the district of Harz, in Saxony-Anhalt, Germany. It is situated in the eastern Harz, approximately 17 km south of Wernigerode. Since 1 January 2010, it is part of the town Oberharz am Brocken. Hasselfelde has 2,390 inhabitants. Transport The town has a railway station on the Selke Valley Railway, part of the Harz Narrow Gauge Railways (HSB). Sights Harz charcoal burning museum Along the road leading to Blankenburg is the ''Harzköhlerei Stemberghaus''. This is an open-air museum that produces charcoal in the traditional way. The site includes a restaurant, the ''Köhlerhütte'', built in 2012, and a souvenir shop. The museum is checkpoint 60 in the Harzer Wandernadel hiking network. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxony-Anhalt
Saxony-Anhalt (german: Sachsen-Anhalt ; nds, Sassen-Anholt) is a state of Germany, bordering the states of Brandenburg, Saxony, Thuringia and Lower Saxony. It covers an area of and has a population of 2.18 million inhabitants, making it the 8th-largest state in Germany by area and the 11th-largest by population. Its capital is Magdeburg and its largest city is Halle (Saale). The state of Saxony-Anhalt was formed in July 1945 after World War II, when the Soviet army administration in Allied-occupied Germany formed it from the former Prussian Province of Saxony and the Free State of Anhalt. Saxony-Anhalt became part of the German Democratic Republic in 1949, but was dissolved in 1952 during administrative reforms and its territory divided into the districts of Halle and Magdeburg. Following German reunification the state of Saxony-Anhalt was re-established in 1990 and became one of the new states of the Federal Republic of Germany. Saxony-Anhalt is renowned for its ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hassel (river)
The Hassel is a river of Saxony-Anhalt, in the East Harz Mountains in Germany. It flows through several municipalities including Stiege and the town of Hasselfelde. Its source is located not far from Stiege. After about it flows into the Hassel Auxiliary Dam and later into the Rappbode Reservoir. See also *List of rivers of Saxony-Anhalt A list of rivers of Saxony-Anhalt, Germany: A * Aland * Aller * Allerbach, tributary of the Rappbode (Rappbode Auxiliary Dam) * Allerbach, tributary of the Warme Bode * Alte Elbe B * Bauerngraben * Beber *Biese *Black Elster * Bode * Born-Dorst ... Rivers of Saxony-Anhalt Rivers of the Harz Rivers of Germany {{SaxonyAnhalt-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Dam
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable and independent of any other dam section. Characteristics Gravity dams generally require stiff rock foundations of high bearing strength (slightly weathered to fresh), although in rare cases, they have been built on soil foundations. The bearing strength of the foundation limits the allowable position of the resultant force, influencing the overall stability. Also, the stiff nature of the gravity dam structure is unforgiving to differential foundation settlement, which can induce cracking of the dam structure. Gravity dams provide some advantages over embankment dams, the main advantage being that they can tolerate minor over-topping flows without damage, as the concre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grauwacke
Greywacke or graywacke (German ''grauwacke'', signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness, dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or lithic fragments set in a compact, clay-fine matrix. It is a texturally immature sedimentary rock generally found in Paleozoic strata. The larger grains can be sand- to gravel-sized, and matrix materials generally constitute more than 15% of the rock by volume. The term "greywacke" can be confusing, since it can refer to either the immature (rock fragment) aspect of the rock or its fine-grained (clay) component. The origin of greywacke was unknown until turbidity currents and turbidites were understood, since, according to the normal laws of sedimentation, gravel, sand and mud should not be laid down together. Geologists now attribute its formation to submarine avalanches or strong turbidity currents. These actions churn sediment and cau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argillaceous
Clay minerals are hydrous aluminium phyllosilicates (e.g. kaolin, Al2 Si2 O5( OH)4), sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations found on or near some planetary surfaces. Clay minerals form in the presence of water and have been important to life, and many theories of abiogenesis involve them. They are important constituents of soils, and have been useful to humans since ancient times in agriculture and manufacturing. Properties Clay is a very fine-grained geologic material that develops plasticity when wet, but becomes hard, brittle and non–plastic upon drying or firing. It is a very common material, and is the oldest known ceramic. Prehistoric humans discovered the useful properties of clay and used it for making pottery. The chemistry of clay, including its capacity to retain nutrient cations such as potassium and ammonium, is important to soil fertility. Because the individual particles in clay are less than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
