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Franconian Line

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The Franconian Line ( German : Fränkische Linie ) is a geological fault in south-eastern Germany that forms the border between the South German Scarplands in the west and the Fichtel Mountains in the east.

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45-651: The Franconian Line was formed as part of the Variscan orogenesis and was most active between 100 and 50 million years ago, when the Fichtel, with its blocks of Hercynian granite , pre-Hercynian gneissess and Palaeozoic meta sedimentary rocks were uplifted above its forelands that were later filled with Mesozoic - Tertiary sediments . The vertical displacement is as least 1,000 metres (3,300 ft) near Wirsberg and in some cases maybe close to 10,000 metres (33,000 ft). This Bavaria location article

90-648: A Triassic rose sandstone) are embedded sometimes up to more than 500 m (1,600 ft) in thickness. The Lower Vosges in the north are dislocated plates of various sandstones, ranging from 300 to 600 m (1,000 to 2,000 ft) high. The Vosges are very similar to the corresponding range of the Black Forest across the Rhine since both lie within the same degrees of latitude, have similar geological formations and are characterized by forests on their lower slopes, above which are open pastures and rounded summits of

135-553: A forested region. Forests were cleared for agriculture, livestock and early industrial factories (such as charcoal works and glassworks ) and the water mills used water power . Concentrations of settlement and immigration took place and not only in areas where minerals were found. In the mining area of the Lièpvrette  [ fr ] valley, for example, there was an influx of Saxon miners and mining specialists. From time to time, wars, plagues and religious conflicts saw

180-634: A geological point of view, a graben at the beginning of the Paleogene period caused the formation of Alsace and the uplift of the bedrock plates of the Vosges, in eastern France , and those in the Black Forest , in Germany . From a scientific view, the Vosges Mountains are not mountains as such, but rather the western edge of the unfinished Alsatian graben, stretching continuously as part of

225-578: A land mass, which has been named Gondwana (present day South America, Africa, Antarctica, Arabia , the Indian subcontinent , Zealandia and Australia), straddled the space between the South Pole and the Equator on one side of the globe. Off to the west were three other masses: Laurentia , Siberia and Baltica , located as if on the vertices of a triangle. To the south of them was a large archipelago,

270-524: A rather uniform altitude. Both areas exhibit steeper slopes towards the Rhine and a more gradual descent on the other side. Both the Vosges and the Black Forest were formed by isostatic uplift in response to the opening of the Rhine Graben , a major extensional basin. When such basins form, the thinning of the crust causes uplift immediately adjacent to the basin, decreasing with distance from

315-742: A single geomorphological unit and low mountain range of around 8,000 km (3,100 sq mi) in area. It runs in a north-northeast direction from the Burgundian Gate (the Belfort – Ronchamp – Lure line) to the Börrstadt Basin (the Winnweiler – Börrstadt – Göllheim line), and forms the western boundary of the Upper Rhine Plain . The Grand Ballon is the highest peak at 1,424 m (4,672 ft), followed by

360-419: Is a stub . You can help Misplaced Pages by expanding it . This tectonics article is a stub . You can help Misplaced Pages by expanding it . Variscan 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 . The name Variscan comes from

405-522: Is marked by a classic strike-slip suture zone between very distinct suspect terranes, and clear evidence can be seen of ductile shearing between high-grade metamorphic rocks and lower grade sedimentary rocks in a wide belt north of the Algarve and extending into the northernmost part the autonomous region of Andalusia and southern Extremadura . In the Czech Republic and southwestern Poland

450-625: The Bohemian Massif is the eastern end of the unmodified Variscan belt of crustal deformation in Europe. Further Variscan developments to the southeast are partly hidden and overprinted by the Alpine orogeny . In the Alps a Variscan core is built by Mercantour , Pelvoux , Belledonne , Montblanc and Aar Massif . Dinaric , Greek and Turkish mountain chains are the southeastern termination of

495-569: The Celts . After the Roman era, Alemanni also settled in the east, and Franks in the northwest. Contrary to widespread belief, the main ridge of the Vosges coincided with the historical Roman-Germanic language boundary only in the southern Vosges. Old Romance ( Altromanisch ) is spoken east of the main ridge: in the valley of the Weiss around Lapoutroie , the valley of Lièpvrette (nowadays also called

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540-489: 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 meaning shifted from direction to the fold belt proper. One of the pioneers in research on

585-710: The Kastelberg to 1,350 m (4,429 ft); and the Ballon d'Alsace to 1,247 m (4,091 ft). The Col de Saales, between the Higher and Central Vosges, reaches nearly 579 m (1,900 ft), both lower and narrower than the Higher Vosges, with Mont Donon at 1,008 m (3,307 ft) being the highest point of this Nordic section. The highest mountains and peaks of the Vosges (with Alsatian or German names in brackets) are: Two nature parks lie within

630-621: The Parc naturel régional des Ballons des Vosges (established in 1989). Meteorologically , as a consequence of the Foehn effect the difference between the eastern and western mean slopes of the range is very marked. The main air streams come generally from the west and southwest, so the Alsatian central plains just under the Hautes-Vosges receive much less water than the south-west front of

675-708: The Storkenkopf (1,366 m, 4,482 ft), and the Hohneck (1,364 m, 4,475 ft). Geographically , the Vosges Mountains are wholly in France , far above the Col de Saverne separating them from the Palatinate Forest in Germany . The latter area logically continues the same Vosges geologic structure but traditionally receives this different name for historical and political reasons. From 1871 to 1918

720-680: The Val d'Argent ; "Valley of Silver"), parts of the canton of Villé valley  [ fr ] ( Vallée de Villé ) and parts of the Bruche valley ( Vallée de la Bruche ). By contrast, those parts of the northern Vosges and the whole of the Wasgau , which lie north of the Breusch valley, fall within the Germanic-speaking area because, from Schirmeck the historical linguistic boundary turns to

765-998: The Vale of Glamorgan . Its effects are present in France from Brittany , below the Paris Basin to the Ardennes , the Massif Central , the Vosges and Corsica . The Variscan Belt reappears in Sardinia in Italy and in Germany where the Rhine Massif (Ardennes, Eifel , Hunsrück , Taunus and other regions on both sides of Middle Rhine Valley), the Black Forest and Harz Mountains remain as testimony. In southern Iberia it

810-764: The terrane Avalonia , rifted off the north Gondwana margin in early Ordovician . By the end of the Silurian and in Early Devonian times, Baltica and Laurentia drifted towards each other, closing the Iapetus Ocean between them. They collided in the Caledonian orogeny and formed the Caledonide mountains of North America, Greenland , the British Isles and Norway . Seafloor spreading to

855-826: The Appalachian Mountains and used to form the eastern part of the Appalachian orogeny before the opening of the Atlantic Ocean in Jurassic times. 'Variscan' mountains in a broad chronological sense include the Urals , the Pamir , the Tian Shan and other Asian foldbelts. The Variscan orogeny involved a complicated heterogeneous assembly of different microplates and heterochronous collisions, making

900-655: The Appalachians. Vosges The Vosges ( / v oʊ ʒ / VOHZH , French: [voʒ] ; German : Vogesen [voˈɡeːzn̩] ; Franconian and Alemannic German : Vogese ) are a range of medium mountains in Eastern France , near its border with Germany . Together with the Palatine Forest to the north on the German side of the border, they form

945-707: The British Isles, northern Germany, Scandinavia and western Russia). In late Devonian and in the Carboniferous the archipelago Armorica of southern Europe, which had rifted off Gondwana after Avalonia later in the Ordovician, was pushed into Avalonia, creating a second range, the North American/European Variscan, to the east of the Caledonide/Appalachian. The collision of Gondwana proper with Laurussia followed in

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990-688: 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

1035-502: The Rhine valley, the Black Forest and the distant, snow-covered Swiss mountains. The massif known in Latin as Vosago mons or Vosego silva , sometimes Vogesus mons , was extended to the vast woods covering the region. Later, German speakers referred to the same region as Vogesen or Wasgenwald . Over the centuries, settlement population density grew gradually, as was typical for

1080-572: The United States, it is used only for European orogenies; the contemporaneous and genetically linked mountain-building phases in the Appalachian Mountains have different names. The regional term Variscan underwent a further meaning shift since the 1960s. Geologists generally began to use it to characterize late Paleozoic fold-belts and orogenic phases having an age of approximately 380 to 280 Ma. Some publications use

1125-589: The Variscan fold belt was the German geologist Franz Kossmat , establishing a still valid division of the European Variscides in 1927. The other direction, Hercynian , for the direction of the Harz Mountains in Germany, saw a similar shift in meaning. Today, Hercynian is often used as a synonym for Variscan but is somewhat less used than the latter in the English speaking world. In

1170-574: The Variscan proper. The Variscan was contemporaneous with the Acadian and Alleghenian orogeny in the United States and Canada, responsible for forming the Ouachita and Appalachian Mountains . North American areas with Variscan foldbelts include New England , Nova Scotia and Newfoundland and Labrador . The Moroccan Meseta and the Anti-Atlas in northwestern Africa show close relations to

1215-400: The Vosges Mountains. The highlands of the arrondissement of Remiremont receive as annual rainfall or snowfall more than 2,000 mm (79 in) of precipitation yearly, whereas some dry countryside near Colmar receives less than 500 mm (20 in) of water in the event of insufficient storms. The temperature is much lower in the west front of the mountains than in the low plains behind

1260-473: The Vosges marked for the most part the border between Germany and France, due to the Franco-Prussian War . The elongated massif is divided south to north into three sections: In addition, the term "Central Vosges" is used to designate the various lines of summits, especially those above 1,000 m (3,300 ft) in elevation. The French department of Vosges is named after the range. From

1305-535: The Vosges were the scene of the Battle of Trippstadt . From 1871 to 1918, they formed the main border line between France and the German Empire . The demarcation line stretched from the Ballon d'Alsace in the south to Mont Donon in the north with the lands east of it being incorporated into Germany as part of Alsace-Lorraine . The Vosges saw extensive fighting during the world wars. During World War I, there

1350-745: The Vosges: the Ballons des Vosges Nature Park and the Northern Vosges Regional Nature Park . The Northern Vosges Nature Park and the Palatinate Forest Nature Park on the German side of the border form the cross-border UNESCO -designated Palatinate Forest-North Vosges Biosphere Reserve . In the late 20th century, a wide area of the massif was included in two protected areas , the Parc naturel régional des Vosges du Nord (established in 1976) and

1395-424: The basin. Thus, the highest range of peaks rises immediately adjacent to the basin and increasingly lower mountains rise further from the basin. The highest points are in the Hautes Vosges : the Grand Ballon , in ancient times called Ballon de Guebwiller or Ballon de Murbach, rises to 1,424 m (4,672 ft); the Storckenkopf to 1,366 m (4,482 ft); the Hohneck to 1,364 m (4,475 ft);

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1440-457: The depopulation of territories – in their wake it was not uncommon for people to be relocated there from other areas. On the lower heights and buttresses of the main chain on the Alsatian side are numerous castles, generally in ruins, testifying to the importance of this crucial crossroads of Europe, violently contested for centuries. At several points on the main ridge, especially at Sainte Odile above Ribeauvillé (German: Rappoltsweiler), are

1485-422: The early Carboniferous, when the Variscan belt was already in place and actively developing. By the end of the Carboniferous, Gondwana had united with Laurussia on its western end through northern South America and northwestern Africa. Siberia was approaching from the northeast, separated from Laurussia only by shallow waters. Collision with Siberia produced the Ural Mountains in the latest Paleozoic and completed

1530-404: The exact reconstruction of the plate tectonic processes difficult. Plate convergence that caused the Caledonian orogeny in the Silurian continued to form the Variscan orogeny in the succeeding Devonian and Carboniferous Periods. Both orogenies resulted in the assembly of a super-continent, Pangaea , which was essentially complete by the end of the Carboniferous. In the Ordovician Period,

1575-458: The formation of Pangaea. Eastern Laurussia was still divided from Gondwana by the Paleotethys Ocean. In the Triassic Period of the Mesozoic Era, animals could move without oceanic impediment from Siberia over the North Pole to Antarctica over the South Pole. In the Mesozoic Era, rifting and subsequent opening of the Atlantic split Pangaea. As a consequence, the Variscan Belt around the then periphery of Baltica ended up many hundreds of miles from

1620-567: The larger Tertiary formations. Erosive glacial action was the primary catalyst for development of the highland massif feature. The Vosges in their southern and central parts are called the Hautes Vosges . These consist of a large Carboniferous mountain eroded just before the Permian Period with gneiss , granites , porphyritic masses or other volcanic intrusions. The north, south and west parts are less eroded by glaciers, and here Vosges Triassic and Permian red sandstone remains are found in large beds. The grès vosgien (a French name for

1665-499: The last two from the Vosges Mountains. The rivers Moselle , Meurthe and Sarre and their numerous affluents all rise on the Lorraine side. In the High Moselle and Meurthe basins, moraines , boulders and polished rocks testify to the former existence of glaciers which once covered the top of the Vosges. The mountain lakes caused by the original glacial phenomena are surrounded by pines, beeches and maples , and green meadows provide pasture for large herds of cattle, with views of

1710-401: The massif, especially in summer. On the eastern slope economic vineyards reach to a height of 400 m (1,300 ft); on the other hand, in the mountains, it is a land of pasture and forest. The only rivers in Alsace are the Ill coming from south Alsace (or Sundgau), and the Bruche d'Andlau and the Bruche which have as tributaries other, shorter but sometimes powerful streams coming like

1755-412: The mountainside under heavy fire from the Germans. Two previous rescues failed. The 442nd suffered 800 casualties, rescued the Texans, and took the mountain. On 20 January 1992 Air Inter Flight 148 crashed into the Vosges Mountains while circling to land at Strasbourg International Airport, killing 87 people. In pre-Roman times, the Vosges was empty of settlements or was colonized and dominated by

1800-406: The northwest and runs between Donon and Mutzigfelsen heading for Sarrebourg ( Saarburg ). The Germanic areas of the Vosges mountains are part of the Alemannic dialect region and cultural area and, in the north, also part of the Frankish dialect region and cultural area. The Romance-speaking areas are traditionally part of the Lorrain language region in the west and the Frainc-Comtou region in

1845-400: The remains of a wall of unmortared stone with tenons of wood, about 1.8 to 2.2 m (6 to 7 ft) thick and 1.3 to 1.7 m (4 to 6 ft) high, called the Mur Païen (Pagan Wall). It was used for defence in the Middle Ages and archaeologists are divided as to whether it was built by the Romans , or before their arrival . During the French Revolutionary Wars , on 13 July 1794,

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1890-399: The south of Avalonia pushed the latter into north Laurentia and thrust up the northern Appalachian Mountains in the acadian phase of the Caledonian orogeny. Contemporaneously the Tornquist Sea between Avalonia and Baltica was entirely closed. Thus Avalonia formed the southern coast of the new continent Euramerica ( Laurussia , the Old Red Sandstone continent in present-day North America,

1935-443: The south. For a long time the distribution of languages and dialects basically correlated with the pattern of settlement movements. However, the switch from German to French as the lingua franca which took place between the 17th and the 20th century across the whole of Alsace was not accompanied by any further significant movements of population. General texts: List of majors periodicals concerning Lorraine and South Lorraine: On

1980-407: The term Variscan for fold belts of even younger age, deviating from the meaning as a term for the North American and European orogeny related to the Gondwana-Laurasia collision. The North American and European Variscan Belt includes the mountains of Portugal and Spain ( Galicia , and Pyrenees ), southwestern Ireland (i.e. Munster ), Cornwall , Devon , Pembrokeshire , the Gower Peninsula and

2025-449: Was severe and almost continuous fighting in the mountains. During World War II in October 1944, there was a fierce battle between German forces and the U.S. 442nd Regiment, a segregated unit composed of second-generation Japanese Americans (Nisei), during which the 442nd charged straight up the mountain to rescue the 1st Battalion of the 36th Infantry, formerly the Texas Guard—also known as the "Lost Battalion"—who were cut off and stranded on

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