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Sidobre
The Sidobre is a mountainous area located in the south of the Massif central, in central France. It consists of a plateau made of granite, 15.3 km long, 6.6 km wide and covered with forests. Its highest point is in the ''lieu-dit'' “Le Patau” (707 m). Location It is located in the Tarn department, at the South-Western end of the Massif central, between Lacrouzette, Ferrières, Saint-Salvy-de-la-Balme and Lafontasse, surrounded by the following natural regions : * East : the Mounts of Lacaune * South : the Montagne Noire * West : territory of Castres Geology The granite of the Sidobre is a plutonic rock resulting from a Hercynian intrusion dated back (using the Rubidium-Strontium method) to 304 ± 8 Ma. The magma cooled down slowly and crystallised at a depth of 7.5 to 20 km. It eventually came to the surface with the erosion of the Cambrian metamorphic rocks. In the central part of the ''massif'', the granite is a slightly porphyric granodiorite, hence its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarn (department)
Tarn ( or ; ) is a Departments of France, department in the Occitania (administrative region), Occitania Regions of France, region in Southern France. Named after the river Tarn (river), Tarn, it had a population of 389,844 as of 2019.Populations légales 2019: 81 Tarn INSEE Its Prefectures in France, prefecture and List of communes in France with over 20,000 inhabitants, largest city is Albi; it has a single Subprefectures in France, subprefecture, Castres. In French language, French, the inhabitants of Tarn are known as ''Tarnais'' (masculine) and ''Tarnaises'' (feminine). Its Institut national de la statistique et des études économiques, INSEE and postcode number is 81. History Tarn is one of the original 83 departments created during the French Revolution on 4 ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parc Naturel Régional Du Haut-Languedoc
image:Caroux mouflon.JPG, A mouflon in the park. Haut-Languedoc Regional Nature Park (french: Parc naturel régional du Haut-Languedoc) is a Regional natural parks of France, regional natural park in the south of the Massif Central within the Aveyron, Hérault, and Tarn (department), Tarn Departments of France, departments of France. These areas are considered the Haut-Languedoc, compared to the Bas-Languedoc. Administered by the Federation of French Regional Nature Parks (french: Fédération des Parcs Naturels Régionaux de France), it was created on 22 October 1973 and revised on 17 August 1999. It has an area of 2,605 km2, with 82,000 people living within its boundaries. The park (coordinates 43.52898, 2.6984) comprises a very diverse range of landscapes, which is why seven different areas have been officially defined within it: * Caroux-Espinouse * Montagne noire * Monts de Lacaune * Monts d'Orb * Plateau des Lacs * Sidobre * Vignes et Vallées The park provides a h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tourism In Tarn
The Tarn department is situated in the southwest of France. Statistics In 2009, there were : * Nightly rentals : 8.6 million * Beds available : 23,100 * Business hotels represented 305,000 tourists for a total of 470,200 nights * Campsites represented 54,000 tourists for a total of 254,000 nights * 152,353 nightly rentals booked from the 2 main centers (Tarn Reservation Tourisme and Gîtes de France) Historical and cultural attractions Steeped in history, from the Cathar era to the Industrial Revolution, the Tarn department has a rich heritage of fortified villages, castles, churches and museums. While the south-western houses are mostly stone-built, cities from the northwest of the department are often made of the local red brick, typical of the region. * Albi and its Cathedral, dedicated to Saint-Cecilia. A unique red-brick fortified cathedral, renowned worldwide for its ornamented stone roodscreen. Together with the Berbie palace, a former bishops’ estate now home to the T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monts De Lacaune
A mouflon in the park. Haut-Languedoc Regional Nature Park (french: Parc naturel régional du Haut-Languedoc) is a regional natural park in the south of the Massif Central within the Aveyron, Hérault, and Tarn departments of France. These areas are considered the Haut-Languedoc, compared to the Bas-Languedoc. Administered by the Federation of French Regional Nature Parks (french: Fédération des Parcs Naturels Régionaux de France), it was created on 22 October 1973 and revised on 17 August 1999. It has an area of 2,605 km2, with 82,000 people living within its boundaries. The park (coordinates 43.52898, 2.6984) comprises a very diverse range of landscapes, which is why seven different areas have been officially defined within it: * Caroux-Espinouse * Montagne noire * Monts de Lacaune * Monts d'Orb * Plateau des Lacs * Sidobre * Vignes et Vallées The park provides a habitat for more than 240 species of birds, in a stunningly diverse range of climate and scenery. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambrian
The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago (mya) to the beginning of the Ordovician Period mya. Its subdivisions, and its base, are somewhat in flux. The period was established as "Cambrian series" by Adam Sedgwick, who named it after Cambria, the Latin name for 'Cymru' (Wales), where Britain's Cambrian rocks are best exposed. Sedgwick identified the layer as part of his task, along with Roderick Murchison, to subdivide the large "Transition Series", although the two geologists disagreed for a while on the appropriate categorization. The Cambrian is unique in its unusually high proportion of sedimentary deposits, sites of exceptional preservation where "soft" parts of organisms are preserved as well as their more resistant shells. As a result, our understanding of the Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thoré
The Thoré () is a river in the Hérault and Tarn departments in southern France. Its source is in the northern part of Rieussec. It flows generally northwest. It is a left tributary of the Agout, into which it flows between Navès and Castres. Departments and communes along its course This list is ordered from source to mouth: * Hérault: Rieussec, Verreries-de-Moussans, * Tarn: Labastide-Rouairoux, Anglès, Lacabarède, Rouairoux, Sauveterre, Albine, Saint-Amans-Valtoret, Saint-Amans-Soult, Bout-du-Pont-de-Larn, Mazamet, Pont-de-Larn, Aussillon, Payrin-Augmontel, Aiguefonde, Caucalières, Labruguière, Castres Castres (; ''Castras'' in the Languedocian dialect of Occitan) is the sole subprefecture of the Tarn department in the Occitanie region in Southern France. It lies in the former province of Languedoc, although not in the former region of Lan ..., Navès, References Rivers of France Rivers of Occitania (administrative region) Rivers of Hérault ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentary Basin
Sedimentary basins are region-scale depressions of the Earth's crust where subsidence has occurred and a thick sequence of sediments have accumulated to form a large three-dimensional body of sedimentary rock. They form when long-term subsidence creates a regional depression that provides Accommodation (geology), accommodation space for accumulation of sediments. Over millions or tens or hundreds of millions of years the deposition of sediment, primarily gravity-driven transportation of water-borne eroded material, acts to fill the depression. As the sediments are buried, they are subject to increasing pressure and begin the processes of compaction (geology), compaction and lithification that transform them into sedimentary rock. Sedimentary basins are created by deformation of Earth's lithosphere in diverse geological settings, usually as a result of plate tectonics, plate tectonic activity. Mechanisms of crustal deformation that lead to subsidence and sedimentary basin formati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhexistasy
The theory of biorhexistasy describes climatic conditions necessary for periods of soil formation (pedogenesis) separated by periods of soil erosion. Proposed by pedologist Henry Erhart in 1951, the theory defines two climatic phases: biostasy and rhexistasy. Biostasy During biostasy, abundant and regular precipitation induces strong pedogenesis characterized by chemical alteration of parent material and intensified eluviation and illuviation of soil minerals within the surface soil and subsoil layers (the solum). These processes contribute to the formation of eluvial and argillic horizons and an increased concentration of iron oxides, aluminum oxides, and other sesquioxides in the subsoil. Climatic conditions favor a vegetative cover which protects the soil from physical erosion but abundant rainfall results in the loss of mineral ions and increased concentration of those minerals in receiving bodies of water. Abundant marine calcium results in limestone formation. Rhexista ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of The Pyrenees
The Pyrenees are a 430-kilometre-long, roughly east–west striking, intracontinental mountain chain that divide France, Spain, and Andorra. The belt has an extended, polycyclic geological evolution dating back to the Precambrian. The chain's present configuration is due to the collision between the microcontinent Iberia and the southwestern promontory of the European Plate (i.e. Southern France). The two continents were approaching each other since the onset of the Upper Cretaceous (Albian/ Cenomanian) about 100 million years ago and were consequently colliding during the Paleogene (Eocene/ Oligocene) 55 to 25 million years ago. After its uplift, the chain experienced intense erosion and isostatic readjustments. A cross-section through the chain shows an asymmetric flower-like structure with steeper dips on the French side. The Pyrenees are not solely the result of compressional forces, but also show an important sinistral shearing. Geographic arrangement The Pyrenees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monzonite
Monzonite is an igneous intrusive rock, formed by slow cooling of underground magma that has a moderate silica content and is enriched in alkali metal oxides. Monzonite is composed mostly of plagioclase and alkali feldspar. Syenodiorite is an obsolescent term for monzonite or for monzodiorite.Le Maitre, R.W., ''Igneous Rocks: A Classification and Glossary of Terms'' Cambridge University Press, 2nd ed, pp. 113 Larvikite is a particular form of monzonite. Description Monzonite is a coarse-grained (phaneritic) igneous rock. Such rocks are classified by their relative percentages of quartz, plagioclase, alkali feldspar, and feldspathoid (the QAPF classification). Monzonite is defined as rock having less than 5% quartz in its QAPF fraction and in which alkali feldspar makes up between 35% and 65% of the total feldspar content. If quartz constitutes greater than 5% of the QAPF fraction, the rock is termed a quartz monzonite, while if feldspathoids are present as up to 10% of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granodiorite
Granodiorite () is a coarse-grained (phaneritic) intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. The term banatite is sometimes used informally for various rocks ranging from granite to diorite, including granodiorite. Composition According to the QAPF diagram, granodiorite has a greater than 20% quartz by volume, and between 65% and 90% of the feldspar is plagioclase. A greater amount of plagioclase would designate the rock as tonalite. Granodiorite is felsic to intermediate in composition. It is the intrusive igneous equivalent of the extrusive igneous dacite. It contains a large amount of sodium (Na) and calcium (Ca) rich plagioclase, potassium feldspar, quartz, and minor amounts of muscovite mica as the lighter colored mineral components. Biotite and amphiboles often in the form of hornblende are more abundant in granodiorite than in granite, giving it a more distinct two-toned or overall darker appearan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
