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Kleiner Deister
The Kleiner Deister is a ridge of hills (up to ) in the Calenberg Uplands which, together with the Nesselberg and the Osterwald, forms a group of three adjacent hill ranges in the northern part of the Leine Uplands. It lies between Springe and Eldagsen in Hanover region in Lower Saxony, Germany. Geography The Kleiner Deister is located immediately south of Springe and just north of the Nesselberg. It is drained by the river Haller. The B 217 federal highway from Hanover to Hamelin runs through the flat pass of the Deister Gate. In the south east the Kleiner Deister is separated from the northern foothills of the Osterwald by a valley through which run both the Gehlenbach stream and the L 422 from Eldagsen to Coppenbrügge. At once time the old ''Wolfsbuche'' stood on the saddle between the Kleiner Deister and the Nesselberg and therefore between the Wolfsköpfe in the northeast and the Grasberg in the southwest; this was also the source of the Schwarze Bach, a tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coppenbrügge
Coppenbrügge is a municipality in the Hamelin-Pyrmont district, in Lower Saxony, Germany. It is situated approximatively 15 km (10 miles) east of Hamelin. The Municipality covers the following villages: * Bäntorf * Behrensen * Bessingen * Bisperode Brünnighausen* Coppenbrügge * Diedersen * Dörpe * Harderode * Herkensen * Hohnsen * Marienau History Coppenbrügge was first documented around 1000 in a borderline description of the Bishopric of Hildesheim as '' Cobbanbrug '' mentioned. On March 9, 1062, Emperor Henry IV granted Bishop Hezilo of Hildesheim the forest ban at Coppenbrügge. Built around 1200 Count Bernhard of Poppenburg, who sat on the castle Poppenburg, the mirror castle at Lauenstein. After that he called himself Bernhard von Poppenburg and Spiegelberg. The Spiegelburg was built in the valley between Ith and Osterwald on the old army and trade route near a swamp area. The road was Hellweg, which led from Aachen to Königsberg. After that it was the Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marl
Marl is an earthy material rich in carbonate minerals, Clay minerals, clays, and silt. When Lithification, hardened into rock, this becomes marlstone. It is formed in marine or freshwater environments, often through the activities of algae. Marl makes up the lower part of the White cliffs of Dover, cliffs of Dover, and the Channel Tunnel follows these marl layers between France and the United Kingdom. Marl is also a common sediment in post-glacial lakes, such as the marl ponds of the northeastern United States. Marl has been used as a soil conditioner and neutralizing agent for acid soil and in the manufacture of cement. Description Marl or marlstone is a carbonate mineral, carbonate-rich mud or mudstone which contains variable amounts of Clay minerals, clays and silt. The term was originally loosely applied to a variety of materials, most of which occur as loose, earthy deposits consisting chiefly of an intimate mixture of clay and calcium carbonate, formed under freshwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Cretaceous
Lower may refer to: * ''Lower'' (album), 2025 album by Benjamin Booker * Lower (surname) * Lower Township, New Jersey *Lower Receiver (firearms) * Lower Wick Gloucestershire, England See also * Nizhny {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wealden Group
The Wealden Group, occasionally also referred to as the Wealden Supergroup, is a group (stratigraphy), group (a sequence of rock strata) in the lithostratigraphy of southern England. The Wealden group consists of wiktionary:paralic, paralic to continental (freshwater) sedimentary facies, facies sedimentary rocks of Berriasian to Aptian age and thus forms part of the English Lower Cretaceous. It is composed of alternating sands and clays. The sandy units were deposited in a flood plain of braided rivers, the clays mostly in a lagoonal coastal plain.Jackson (2008) The Wealden Group can be found in almost all Early Cretaceous Sedimentary basin, basins of England: its outcrops curve from the Wessex Basin in the south to the Cleveland Basin in the northeast. It is not found in northwest England and Wales, areas which were at the time tectonic highs where no deposition took place. The same is true for the London Platform around London and Essex. Offshore, the Wealden Group can reach a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obernkirchen
Obernkirchen () is a town in the district of Schaumburg, in Lower Saxony, Germany. It is situated approximately 8 km southwest of Stadthagen, and 15 km east of Minden Minden () is a middle-sized town in the very north-east of North Rhine-Westphalia, Germany, the largest town in population between Bielefeld and Hanover. It is the capital of the district () of Minden-Lübbecke, situated in the cultural region .... Obernkirchen is a small town in the shadows of the Bückeberg, a hill range in the Weser Uplands. It overlooks the vast lower lying part of the old county of ''Schaumburg Lippe'', now the district of Schaumburg, with the town of Bückeburg at its feet. People * August Oetker (1862–1918), inventor, food scientist and businessman References External links Obernkirchen Children's Choir Towns in Lower Saxony Schaumburg {{Schaumburg-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthracite
Anthracite, also known as hard coal and black coal, is a hard, compact variety of coal that has a lustre (mineralogy)#Submetallic lustre, submetallic lustre. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest Coal analysis#Coal classification by rank, ranking of coals. The Coal Region of Northeastern Pennsylvania in the United States has the largest known deposits of anthracite coal in the world with an estimated reserve of seven billion short ton, short tons. Coal in China, China accounts for the majority of global production; other producers include Coal in Russia, Russia, Coal in Ukraine, Ukraine, Coal in North Korea, North Korea, Coal in South Africa, South Africa, Coal in Vietnam, Vietnam, Coal in Australia, Australia, Coal in Canada, Canada, and the Coal mining in the United States, United States. Total production in 2020 was 615 million tons. Anthracite is the most metamorphism, metamorphosed ty ... [...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. kaolinite, ). 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. Clays develop plasticity (physics), plasticity when wet but can be hardened through Pottery#Firing, firing. Clay is the longest-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 radiocarbon dating, dated to around 14,000 BCE, and Clay tablet, clay tablets were the first known writing medium. Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filtration, filtering. Between one-half and two-thirds of the world's population live or work in buildings made with clay, often baked into brick, as an essenti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltstone
Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility. Although its permeability and porosity is relatively low, siltstone is sometimes a tight gas reservoir rock, an unconventional reservoir for natural gas that requires hydraulic fracturing for economic gas production. Siltstone was prized in ancient Egypt for manufacturing statuary and cosmetic palettes. The siltstone quarried at Wadi Hammamat was a hard, fine-grained siltstone that resisted flaking and was almost ideal for such uses. Description There is not complete agreement on the definition of siltstone. One definition is that siltstone is mudrock (clastic sedimentary rock containing at least 50% clay and silt) in which at least 2/3 of the clay and silt fraction is composed of silt-sized particles. Silt is defined as grains 2–62 μm in diam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface. Like uncemented sand, sandstone may be imparted any color by impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Because sandstone beds can form highly visible cliffs and other topography, topographic features, certain colors of sandstone have become strongly identified with certain regions, such as the red rock deserts of Arches National Park and other areas of the Southwestern United States, American Southwest. Rock formations composed of sandstone usually allow the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deister
The Deister () is a chain of hills in the Germany, German state of Lower Saxony, about 15 mi (25 km) southwest of the city of Hanover. It runs in a north-westerly direction from Springe in the south to Rodenberg in the north. The next in the chain of hills to the south is the Kleiner Deister ("Little Deister") from which it is separated by the flat pass of the Deister Gate. It is surrounded by Springe, Wennigsen, Barsinghausen, Bad Nenndorf, Rodenberg and Bad Münder am Deister, Bad Münder (counter-clockwise, starting in the south). It has a total length of 21 km (14 mi), and rises in the Hofeler to a height of 395 m (1,250 ft). The highest point is the Bröhn at 405 m (1,312 ft). The chain is well-wooded and abounds in game. From the 17th century on there were several coal mines; the last was abandoned in the 1950s. Sandstone from quarries in eastern Deister was used in several important buildings all over Europe, including the opera hous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variscan Orogeny
The Variscan orogeny, or Hercynian orogeny, was a geologic mountain-building event caused by Late Paleozoic continental collision between Euramerica (Laurussia) and Gondwana to form the supercontinent of Pangaea. Nomenclature The name ''Variscan'' comes from the Medieval Latin name for the district '' Variscia'', the home of a Germanic tribe, the Varisci; Eduard Suess, professor of geology at the University of Vienna, coined the term in 1880. ( Variscite, a rare green mineral first discovered in the Vogtland district of Saxony in Germany, which is in the Variscan belt, has the same etymology.) ''Hercynian'', on the other hand, derives from the Hercynian Forest. Both words were descriptive terms of strike directions observed by geologists in the field, ''variscan'' for southwest to northeast, ''hercynian'' for northwest to southeast. The ''variscan'' direction reflected the direction of ancient fold belts cropping out throughout Germany and adjacent countries and the meanin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
