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.
Stone sculpture relief on the Altmarkt- west side in Dresden, sandstone type: CottaCotta Sandstone quarry in the Lohmgrund near CottaMain entrance of the Palucca School of Dance, Dresden, Door frames in sandstone of type: Cotta
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. They occasionally resemble marble textures.
The technical value of this natural stone varies considerably, because the quartz grains of Cotta Sandstone are frequently siliceously bonded, but it has many unevenly divided deposits of the phyllosilicates, illite and kaolinite.[1]
Extractionedit
The stone is quarried in Dohma (Groß-Cotta), Bad Gottleuba-Berggießhübel (in the villages of Gottleuba and Berggießhübel), Langhennersdorf, Rottwerndorf, at Neundorf and Lohmgrund south of Pirna, in Gersdorf and Bahretal (Ottendorf), and in the Krippenbach valley. The quarrying of Elbe sandstones is made technically easier because of the separation of the beds with alternating outcrops and fissures, because the fissures are vertical and the beds run roughly at right angles to them. As a result, it is possible to cut rectangular blocks of unfinished stone. The thickness of the quarry-able sandstone beds varies from a ½ to 3 metres. The thickness of the deposits of Cotta Sandstone ranges between 50 and 80 metres.[2]
Useedit
General useedit
Formerly the sandstone quarried near Langhennersdorf, Berggießhübel and Gersdorf, which was larger-grained, was cut not only for use as building or sculpting stone, but also for millstones.[3] Today (2008) Cotta Sandstone is used for solid window and door frames, sculpture work and high-profile stonemasonry. It is especially used in restoration, but also in new structures. Its most important use is for sculptures.
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: Vorkommen, Verwendung, Eigenschaften. In: Geologica Saxonica Journal of Central European Geology 52/53 (2007), p. 143-204 (Digitalisat 2012-03-23 at the Wayback Machine)
External linksedit
Information about Elbe Sandstone
Referencesedit
^Siegfried Grunert: Der Elbsandstein: Vorkommen, Verwendung, Eigenschaften. In: Geologica Saxonica Journal of Central European Geology 52/53 (2007)
^Dienemann/Burre: Die nutzbaren Gesteine Deutschlands, p. 303
^Dienemann/Burre: Die nutzbaren Gesteine Deutschlands, p. 304
May 08, 2024
cotta, sandstone, german, cottaer, sandstein, also, called, mittelquader, found, elbe, valley, numerous, tributary, valleys, main, deposit, lies, west, elbe, sandstone, mountains, where, runs, bohemian, border, ending, south, pirna, named, after, village, cott. 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 Stone sculpture relief on the Altmarkt west side in Dresden sandstone type Cotta Cotta Sandstone quarry in the Lohmgrund near Cotta Main entrance of the Palucca School of Dance Dresden Door frames in sandstone of type Cotta Contents 1 Formation and properties 2 Extraction 3 Use 3 1 General use 4 Gallery 5 See also 6 Sources 7 External links 8 ReferencesFormation and properties editCotta 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 They occasionally resemble marble textures The technical value of this natural stone varies considerably because the quartz grains of Cotta Sandstone are frequently siliceously bonded but it has many unevenly divided deposits of the phyllosilicates illite and kaolinite 1 Extraction editThe stone is quarried in Dohma Gross Cotta Bad Gottleuba Berggiesshubel in the villages of Gottleuba and Berggiesshubel Langhennersdorf Rottwerndorf at Neundorf and Lohmgrund south of Pirna in Gersdorf and Bahretal Ottendorf and in the Krippenbach valley The quarrying of Elbe sandstones is made technically easier because of the separation of the beds with alternating outcrops and fissures because the fissures are vertical and the beds run roughly at right angles to them As a result it is possible to cut rectangular blocks of unfinished stone The thickness of the quarry able sandstone beds varies from a to 3 metres The thickness of the deposits of Cotta Sandstone ranges between 50 and 80 metres 2 Use editGeneral use edit Formerly the sandstone quarried near Langhennersdorf Berggiesshubel and Gersdorf which was larger grained was cut not only for use as building or sculpting stone but also for millstones 3 Today 2008 Cotta Sandstone is used for solid window and door frames sculpture work and high profile stonemasonry It is especially used in restoration but also in new structures Its most important use is for sculptures Gallery editArt historic use of Cotta Stone nbsp Reich Court building in Leipzig nbsp Dresdner Zwinger nbsp TU Berlin nbsp University of Arts Berlin FasanenstrasseSee also editList of sandstones Posta Sandstone Reinhardtsdorf Sandstone Wehlen SandstoneSources editW Dienemann und O Burre Die nutzbaren Gesteine Deutschlands und ihre Lagerstatten mit Ausnahme der Kohlen Erze und Salze Enke Verlag Stuttgart 1929 Siegfried Grunert Der Elbsandstein Vorkommen Verwendung Eigenschaften In Geologica Saxonica Journal of Central European Geology 52 53 2007 p 143 204 Digitalisat Archived 2012 03 23 at the Wayback Machine External links editPictures of Cotta Sandstone Technical data for Cotta Sandstone Information about Elbe SandstoneReferences edit Siegfried Grunert Der Elbsandstein Vorkommen Verwendung Eigenschaften In Geologica Saxonica Journal of Central European Geology 52 53 2007 Dienemann Burre Die nutzbaren Gesteine Deutschlands p 303 Dienemann Burre Die nutzbaren Gesteine Deutschlands p 304 Retrieved from https en wikipedia org w index php title Cotta Sandstone amp oldid 1191673852, wikipedia, wiki, book, books, library,
