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Grillenburg Sandstone
Grillenburg Sandstone (german: Grillenburger Sandstein) and Niederschöna Sandstone (''Niederschönaer Sandstein'') belong to the Elbe Sandstones of central Europe. There used to be a number of sandstone quarries in the Tharandt Forest and its neighbourhood, not far from Höckendorf (Paulsdorf Heath) and Ruppendorf, near Grillenburg, Niederschöna and Hetzdorf in the state of Saxony. These Cretaceous sandstones emerged in the Cenomanian and Turonian ages. The aforementioned quarries have long since closed. Description and use This sandstone is both fine- and coarse-grained; its colour ranging from white to brown; in addition to quartz and mica, numerous plant impressions of the genus ''Credneria'' are found in it. According to sedimentological investigations and historical research, the material for the Golden Gate of Freiberg Cathedral came from the "ashlar stratum" (''Werksteinbank'') in the area of Grillenburg.Siegfried Grunert: ''Der Sandstein der Sächsischen Schweiz''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freiberg Sachsen Dom Goldene Pforte
Freiberg is a university and former mining town in Saxony, Germany. It is a so-called ''Große Kreisstadt'' (large county town) and the administrative centre of Mittelsachsen district. Its historic town centre has been placed under heritage conservation and is a part of the UNESCO World Heritage Site known as the Ore Mountain Mining Region, due to its exceptional testimony to the development of mining techniques across many centuries. Until 1969, the town was dominated for around 800 years by the mining and smelting industries. In recent decades it has restructured into a high technology site in the fields of semiconductor manufacture and solar technology, part of Silicon Saxony. It is home of the oldest university of mining and metallurgy in the world – the Freiberg University of Mining and Technology. Geography Location The town lies on the northern declivity of the Ore Mountains, with the majority of the borough west of the Eastern or Freiberger Mulde river ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Credneria
''Credneria'' is an extinct genus in the family or Platanaceae of broad-leaf trees similar to extinct ''Platanus'' species that appeared during the Cretaceous. The genus was first described by Zenker (1833) and has formerly been placed in the family Salicaceae rather than Platanaceae on occasion. ''Credneria'' leaves are preserved in sandstone and less often in siltstone. The leaves are typically obovate with a pinnate-actinodromous venation and distinct suprabasal veins. Species Known species are: * *''Credneria biloba'' *''Credneria bohemica'' *''Credneria comparabilis'' *''Credneria cuneifolia'' *''Credneria daturaefolia'' (Ward) *''Credneria denticulata'' *?''Credneria grewiopsoides'' *''Credneria integerrima'' *?''Credneria longifolia'' *''Credneria pachyphylla'' *''Credneria parva'' *''Credneria prophylloides'' ( Knowlton) *''Credneria pulchra'' *?''Credneria spatiosa'' *''Credneria subserrata'' (Hampe) *''Credneria subtriloba'' *''Credneria sudanense'' *''Credneria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elbe Sandstone Mountains
The Elbe Sandstone Mountains, also called the Elbe Sandstone Highlands (german: Elbsandsteingebirge; cs, Děčinská vrchovina), are a mountain range straddling the border between the state of Saxony in southeastern Germany and the North Bohemian region of the Czech Republic, with about three-quarters of the area lying on the German side. In both countries, core parts of the mountain range have been declared a national park. The name derives from the sandstone which was carved by erosion. The river Elbe breaks through the mountain range in a steep and narrow valley. The Saxon Switzerland and Bohemian Switzerland national parks, known also as Saxon-Bohemian Switzerland, are located within the territory of Elbe Sandstone Mountains. Geography Extent The Elbe Sandstone Mountains extend on both sides of the Elbe from the Saxon town of Pirna in the northwest toward Bohemian Děčín in the southeast. Their highest peak with is the Děčínský Sněžník in Bohemian Switzerland o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reinhardtsdorf Sandstone
Reinhardtsdorf Sandstone (german: Reinhardtsdorfer Sandstein, also ''Oberquader'' or ''Hauptsandstein'') is quarried in the vicinity of Reinhardtsdorf near Pirna in the district of Sächsische Schweiz-Osterzgebirge in the German Free State of Saxony. It is the so-called main sandstone of the Elbe sandstones, and was formed in the Middle Turonian. In 2008 there was one quarry that won this particular sandstone. See also * List of sandstones * Cotta Sandstone * Posta Sandstone Posta Sandstone (german: Postaer Sandstein) also called Wehlen Sandstone (''Wehlener Sandstein''), only occurs on the eastern banks of the River Elbe at Alte Poste, near Herrenleithe, Wehlen, Zeichen and Posta. The thickness of the deposit is ... * Wehlen Sandstone References Sources *W. Dienemann und O. Burre: ''Die nutzbaren Gesteine Deutschlands und ihre Lagerstätten mit Ausnahme der Kohlen, Erze und Salze'', Enke-Verlag, Stuttgart 1929. * Siegfried Grunert: ''Der Elbsandstein: Vork ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Posta Sandstone
Posta Sandstone (german: Postaer Sandstein) also called Wehlen Sandstone (''Wehlener Sandstein''), only occurs on the eastern banks of the River Elbe at Alte Poste, near Herrenleithe, Wehlen, Zeichen and Posta. The thickness of the deposit is between 30 and 50 metres. It is also known as ''Überquader'' ("Over Ashlar") and has the smallest deposit of all the Elbe sandstones. In 2008 it was being quarried in the areas around the village of Lohmen and in Wehlen. Quarrying and use In 2008, Posta Sandstone was being won in two quarries in the Wesenitz valley and it was being used for solid window and door frames, façade slabs, sculptor's blocks and high-profile masonry work. It is used especially in restoration work and sometimes also in new structures. The following is a selection of the structures built in Posta Sandstone: * Berlin: ** Ground floor of the Berlin Institute of Technology in Charlottenburg * Dresden: ** Old Town (''Altmarkt'') (rebuilding after the Second World ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cotta Sandstone
Cotta Sandstone (german: Cottaer Sandstein, also called ''Mittelquader''), is found in the Elbe Valley and in its numerous tributary valleys. Its main deposit lies in the west of the Elbe Sandstone Mountains, where it runs up to the Bohemian border, ending south of Pirna. It is named after the village of Cotta in the borough of Dohma, an area where the stone is quarried. Formation and properties Cotta Sandstone was formed in the Cretaceous, in the Lower Turonian age. It is one of the Elbe sandstones and its colours range from whitish to grey and yellowish grey. In the south of the area Cotta Sandstone is medium-grained, whilst, in the north it is fine-grained. Around the village of Cotta itself the grain size is evenly sized at 0.1 to 0.22 millimetres and only very rarely as large as 0.3 millimetres. The rock contains the smallest elements of mica minerals (glauconite), decomposed feldspar and carbon elements. The carbon particles are arranged in clearly recognisable veins. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Sandstones
This is a list of types of sandstone that have been or are used economically as natural stone for building and other commercial or artistic purposes. Trans-regional (across state borders) *'' Cornbrash Sandstone'': North Rhine-Westphalia, Lower Saxony *'' Elbe Sandstone'': Germany (Saxony) and the Czech Republic *''Red Main Sandstone'': Hesse, Baden-Württemberg, Bavaria *'' Wealden Sandstone'': Lower Saxony, North Rhine-Westphalia Australia * ''Hawkesbury Sandstone'': Sydney Basin, Gosford Belgium * '' Balegem Sandstone'': Balegem in Oosterzele * '' Ledian Sandstone'': Lede * '' Gobertange Sandstone'': Gobertange in Jodoigne Canada * Nepean Sandstone: Ottawa, Ontario * Paskapoo Sandstone: Calgary, Alberta Czech Republic * ''Božanov Sandstone'': near Božanov * ''Niedergrund Sandstone'': near Dolní Žleb * Libná Sandstone: near Libná * ''Zdoňov Sandstone'': near Zdoňov * ''Mšené Sandstone''; near Mšené-lázně * ''Podhorní Sandstone'': near Podhorn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freiberg, Saxony
Freiberg is a university and former mining town in Saxony, Germany. It is a so-called ''Große Kreisstadt'' (large county town) and the administrative centre of Mittelsachsen district. Its historic town centre has been placed under heritage conservation and is a part of the UNESCO World Heritage Site known as the Ore Mountain Mining Region, due to its exceptional testimony to the development of mining techniques across many centuries. Until 1969, the town was dominated for around 800 years by the mining and smelting industries. In recent decades it has restructured into a high technology site in the fields of semiconductor manufacture and solar technology, part of Silicon Saxony. It is home of the oldest university of mining and metallurgy in the world – the Freiberg University of Mining and Technology. Geography Location The town lies on the northern declivity of the Ore Mountains, with the majority of the borough west of the Eastern or Freiberger Mulde river. Part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johanngeorgenstadt
Johanngeorgenstadt () is a mining town in Saxony’s Ore Mountains, 17 km south of Aue, and 27 km northwest of Karlovy Vary. It lies in the district of Erzgebirgskreis, on the border with the Czech Republic, is a state-recognized health resort (''Erholungsort''), and calls itself ''Stadt des Schwibbogens'' (“Schwibbogen Town”). Its population decline since the 1950s has been extremely severe falling from 45,000 residents in 1953 to only about one tenth of that now. Geography Location The town stretches predominantly from the eastern ridge of the almost 900-m-high Fastenberg to where the Breitenbach, which forms part of the border with the Czech Republic, empties into the river Schwarzwasser. The nearest high mountains to the town are the 1019-m-high Auersberg, the 1043-m-high Blatenský vrch (in the Czech Republic) and the 913-m-high Rabenberg. Neighbouring communities Communities in Aue-Schwarzenberg bordering on Johanngeorgenstadt are Breitenbrunn, Eibens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxon Postal Milepost
A Saxon milepost (german: kursächsische Postmeilensäule, colloquially ''sächsische Postmeilensäule'' or ''Postsäule'') was a milepost in the former Electorate of Saxony that gave distances expressed as journey times to the nearest eighth of an hour. With one hour being the equivalent of one league, this corresponds to a distance of about 566 m. The design of the mileposts varied according to the distance at which they were placed. They were hewn from natural stone into the shape of an obelisk, an ancient herma or a stele. Their prototype was the Roman milepost. From its German name ''römische Meilensäule'' the rather inaccurate German description of ''Säule'' (lit.: "column") was derived. The Saxon head postal director (''Oberpostdirektor''), Paul Vermehren, brought about their inception based on official distance surveys, whose results were given in leagues on the post mileposts. A league in Saxony at that time (1722 to 1840) was meant to be an hour's journey, eq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freiberg Cathedral
The Freiberg Cathedral or Cathedral of St Mary (german: Dom St. Marien) is a church of the Evangelical-Lutheran Church of Saxony in Freiberg in Saxony. The term Dom, a German synecdoche used for collegiate churches and cathedrals alike, is often uniformly translated as cathedral into English, even though this church here was a collegiate church, not a cathedral (seat of a bishop). History Around 1180, the basilica "of Our Lady" was built in Freiberg, which was developing rapidly due to the silver that had recently been found in the Ore Mountains. Two significant works of art that are still conserved were added very early: the ''Triumphkreuzgruppe'' crucifixion group (around 1225) and the ''Goldene Pforte'' (Golden Gate). In 1480, the church was turned into a Collegiate church, which earned the church the naming Dom, in German used for collegiate churches and cathedrals alike. However, the college was dissolved after only 57 years due to the reformation in the Electorate of Saxon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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