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Westerwald Trail
The Westerwald (; literally 'Western forest') is a low mountain range on the right bank of the river Rhine in the German federal states of Rhineland-Palatinate, Hesse and North Rhine-Westphalia. It is a part of the Rhenish Massif ( or Rhenish Slate Mountains). Its highest elevation, at 657 m above sea level, is the Fuchskaute in the High Westerwald. Tourist attractions include the (394 metres), site of some Celtic ruins from La Tène times (5th to 1st century BC), found in the community of the same name, and Limburg an der Lahn, a town with a mediaeval centre. The geologically old, heavily eroded range of the Westerwald is in its northern parts overlaid by a volcanic upland made of Neogene basalt layers. It covers an area of some , and therefore roughly , making the Westerwald one of Germany's biggest mountain ranges by area. In areas of subsidence, it has in its flatter western part (Lower Westerwald) the characteristics of rolling hills. Typical for the economy of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greifenstein
Greifenstein is a municipality in the Lahn-Dill-Kreis in Hesse, Germany. Its administrative seat is Beilstein. Greifenstein covers 67.43 km² on the eastern slope of the Westerwald range. It was named for the castle of the same name in the constituent community of the same name. This is the site of the German Bell Museum (''Deutsches Glockenmuseum''), which holds about 50 bells that show the historical development of bell pouring and manufacture. Geography Neighbouring communities Greifenstein borders in the northwest on the community of Driedorf, in the north on the town of Herborn and the community of Sinn, in the east on the community of Ehringshausen, in the south on the town of Leun (all in the Lahn-Dill-Kreis) and the community of Löhnberg, and in the southwest on the community of Mengerskirchen (both in Limburg-Weilburg). Constituent communities The community was founded as part of Hesse's municipal reforms in 1977 from the following centres (with population fig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limburg An Der Lahn
Limburg an der Lahn (officially abbreviated ''Limburg a. d. Lahn'') is the district seat of Limburg-Weilburg in Hesse, Germany. Geography Location Limburg lies in western Hessen between the Taunus and the Westerwald on the river Lahn. The town lies roughly centrally in a basin within the Rhenish Slate Mountains which is surrounded by the low ranges of the Taunus and Westerwald and called the Limburg Basin (''Limburger Becken''). Owing to the favourable soil and climate, the Limburg Basin stands as one of Hesse's richest agricultural regions and moreover, with its convenient Lahn crossing, it has been of great importance to transport since the Middle Ages. Within the basin, the Lahn's otherwise rather narrow lower valley broadens out noticeably, making Limburg's mean elevation only 117 m above sea level. Neighbouring communities Limburg forms, together with the town of Diez, a middle centre (in terms of Central place theory) but partially functions as an upper centre to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bad Marienberg
Bad Marienberg (Westerwald) is a town in the Westerwaldkreis in Rhineland-Palatinate, Germany, and also the seat of the like-named ''Verbandsgemeinde'', a kind of collective municipality. Geography The community lies in the Westerwald between Limburg and Siegen. From east to west through the town flows the river Nister, which is part of the Sieg drainage basin. Bad Marienberg’s ''Stadtteile'' are Eichenstruth, Langenbach and Zinhain. History Middle Ages In 1048, Bad Marienberg had its first documentary mention. It is likely that this same source gave rise to the name Westerwald, since the area around Bad Marienberg lies directly west of Herborn. In 1258, Marienberg was described as ''Mons sanctae Mariae''. In the 18th century, the formerly separate communities of Obermarienberg, still an easily recognizable ring-shaped settlement around the parish church today, and Untermarienberg grew together. Marienberg was part of the lordly domain in the Westerwald that was formed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electorate Of Trier
The Electorate of Trier (german: Kurfürstentum Trier or ' or Trèves) was an ecclesiastical principality of the Holy Roman Empire that existed from the end of the 9th to the early 19th century. It was the temporal possession of the prince-archbishop of Trier (') who was, ''ex officio'', a prince-elector of the empire. The other ecclesiastical electors were the electors of Cologne and Mainz. The capital of the electorate was Trier; from the 16th century onward, the main residence of the Elector was in Koblenz. The electorate was secularized in 1803 in the course of the German mediatisation. The Elector of Trier, in his capacity as archbishop, also administered the Archdiocese of Trier, whose territory did not correspond to the electorate (see map below). History Middle ages Trier, as the important Roman provincial capital of ', had been the seat of a bishop since Roman times. It was raised to archiepiscopal status during the reign of Charlemagne, whose will mentions the bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siegerland
The Siegerland is a region of Germany covering the old district of Siegen (now part of the district of Siegen-Wittgenstein in North Rhine-Westphalia) and the upper part of the district of Altenkirchen, belonging to the Rhineland-Palatinate adjoining it to the west. Geologically, the Siegerland belongs to the Rhenish Massif (Rheinisches Schiefergebirge, ''Rhenish Slate Mountains''). The point of highest elevation is the ''Riemen'', at 678 metres above sea level. The river Sieg, a right tributary of the river Rhine, has its source in the town of Netphen in the Rothaar Mountains. The region around the city of Siegen is centered in the middle of Germany. It includes the municipalities of Hilchenbach, Netphen, Kreuztal, Freudenberg and Siegen, and the communities of Wilnsdorf, Burbach and Neunkirchen, all in North Rhine-Westphalia, and in the Rhineland-Palatinate the municipalities of Kirchen, Herdorf Herdorf () is a town in the district of Altenkirchen, in Rhineland-Palatina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pottery
Pottery is the process and the products of forming vessels and other objects with clay and other ceramic materials, which are fired at high temperatures to give them a hard and durable form. Major types include earthenware, stoneware and porcelain. The place where such wares are made by a ''potter'' is also called a ''pottery'' (plural "potteries"). The definition of ''pottery'', used by the ASTM International, is "all fired ceramic wares that contain clay when formed, except technical, structural, and refractory products". In art history and archaeology, especially of ancient and prehistoric periods, "pottery" often means vessels only, and sculpted figurines of the same material are called "terracottas". Pottery is one of the oldest human inventions, originating before the Neolithic period, with ceramic objects like the Gravettian culture Venus of Dolní Věstonice figurine discovered in the Czech Republic dating back to 29,000–25,000 BC, and pottery vessels that were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diabase
Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-grained to aphanitic chilled margins which may contain tachylite (dark mafic glass). ''Diabase'' is the preferred name in North America, while ''dolerite'' is the preferred name in the rest of the English-speaking world, where sometimes the name ''diabase'' refers to altered dolerites and basalts. Some geologists prefer to avoid confusion by using the name ''microgabbro''. The name ''diabase'' comes from the French ', and ultimately from the Greek - meaning "act of crossing over, transition". Petrography Diabase normally has a fine but visible texture of euhedral lath-shaped plagioclase crystals (62%) set in a finer matrix of clinopyroxene, typically augite (20–29%), with minor olivine (3% up to 12% in olivine diabase), magnetite (2%), an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarry
A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to reduce their environmental impact. The word ''quarry'' can also include the underground quarrying for stone, such as Bath stone. Types of rock Types of rock extracted from quarries include: *Chalk *China clay *Cinder *Clay *Coal * Construction aggregate (sand and gravel) * Coquina * Diabase *Gabbro *Granite * Gritstone *Gypsum *Limestone *Marble *Ores *Phosphate rock *Quartz *Sandstone * Slate *Travertine Stone quarry Stone quarry is an outdated term for mining construction rocks (limestone, marble, granite, sandstone, etc.). There are open types (called quarries, or open-pit mines) and closed types ( mines and caves). For thousands of years, only hand tools had been used in quarries. In the 18th century, the use of drilling and blasting operatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay particles, but become hard, brittle and non–plastic upon drying or firing. Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide. Clay is the oldest known ceramic material. Prehistoric humans discovered the useful properties of clay and used it for making pottery. Some of the earliest pottery shards have been dated to around 14,000 BC, and clay tablets were the first known writing medium. Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filtering. Between one-half and two-thirds of the world's population live or work in buildings made with clay, often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subsidence
Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope movement. Processes that lead to subsidence include dissolution of underlying carbonate rock by groundwater; gradual compaction of sediments; withdrawal of fluid lava from beneath a solidified crust of rock; mining; pumping of subsurface fluids, such as groundwater or petroleum; or warping of the Earth's crust by tectonic forces. Subsidence resulting from tectonic deformation of the crust is known as tectonic subsidence and can create accommodation for sediments to accumulate and eventually lithify into sedimentary rock. Ground subsidence is of global concern to geologists, geotechnical engineers, surveyors, engineers, urban planners, landowners, and the public in general.National Research Council, 1991. ''Mitigating losses from land subsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neogene
The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. The Neogene is sub-divided into two epochs, the earlier Miocene and the later Pliocene. Some geologists assert that the Neogene cannot be clearly delineated from the modern geological period, the Quaternary. The term "Neogene" was coined in 1853 by the Austrian palaeontologist Moritz Hörnes (1815–1868). During this period, mammals and birds continued to evolve into modern forms, while other groups of life remained relatively unchanged. The first humans (''Homo habilis'') appeared in Africa near the end of the period. Some continental movements took place, the most significant event being the connection of North and South America at the Isthmus of Panama, late in the Pliocene. This cut off the warm ocean currents from the Pacific to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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