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Mont Mézenc
The Mont Mézenc () is a summit of the Massif Central, France. Description Located at the altitude of 1753 m (5751 feet) - for the South Summit, and 1744 m (5722 feet) for the North Summit - in the department of Haute-Loire, Auvergne-Rhône-Alpes, France, it's the highest point of the department (and of the department of Ardèche). The Mont Mézenc has a volcanic origin. It's a dome of phonolite Phonolite is an uncommon extrusive rock, of intermediate chemical composition between felsic and mafic, with texture ranging from aphanitic (fine-grained) to porphyritic (mixed fine- and coarse-grained). Phonolite is a variation of the igneous ... dating 7 million years. References {{DEFAULTSORT:Mont Mézenc Auvergne-Rhône-Alpes Haute-Loire Massif Central ...
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Mont Mézenc - France
Mont may refer to: Places * Mont., an abbreviation for Montana, a U.S. state * Mont, Belgium (other), several places in Belgium * Mont, Hautes-Pyrénées, a commune in France * Mont, Pyrénées-Atlantiques, a commune in France * Mont, Saône-et-Loire, a commune in France Other uses * Mont (food), a category of Burmese snacks and desserts * Mont (surname) * Mont., botanical author abbreviation of Camille Montagne (1784-1866), French military physician and botanist * ''Seawise Giant'', the largest ship in the world, later renamed MV ''Mont'' for her final journey * Menthu or Mont, a deity in Egyptian mythology * M.O.N.T, South Korean boy group See also * Le Mont (other) * Monts (other) * Monte (other) Monte may refer to: Places Argentina * Argentine Monte, an ecoregion * Monte Desert * Monte Partido, a ''partido'' in Buenos Aires Province Italy * Monte Bregagno * Monte Cassino * Montecorvino (other) * Montefalcione Portugal * Mont ...
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Massif Central
The (; oc, Massís Central, ; literally ''"Central Massif"'') is a highland region in south-central France, consisting of mountains and plateaus. It covers about 15% of mainland France. Subject to volcanism that has subsided in the last 10,000 years, these central mountains are separated from the Alps by a deep north–south cleft created by the Rhône river and known in French as the ' (literally "Rhône furrow"). The region was a barrier to transport within France until the opening of the A75 motorway, which not only made north–south travel easier, but also opened access to the massif itself. Geography and geology The is an old massif, formed during the Variscan orogeny, consisting mostly of granitic and metamorphic rocks. It was powerfully raised and made to look geologically younger in the eastern section by the uplift of the Alps during the Paleogene period and in the southern section by the uplift of the Pyrenees. The massif thus presents a strongly asymmet ...
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Haute-Loire
Haute-Loire (; oc, Naut Léger or ''Naut Leir''; English: Upper Loire) is a landlocked department in the Auvergne-Rhône-Alpes region of south-central France. Named after the Loire River, it is surrounded by the departments of Loire, Ardèche, Lozère, Cantal and Puy-de-Dôme. In 2019, it had a population of 227,570;Populations légales 2019: 43 Haute-Loire
INSEE
its inhabitants are called ''Altiligériens'' in French (English : Altiligerians). The department, which has its prefecture in , covers the upper reaches of the Loire and consists of t ...
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Auvergne-Rhône-Alpes
Auvergne-Rhône-Alpes (ARA; ; frp, Ôvèrgne-Rôno-Ârpes; oc, Auvèrnhe Ròse Aups; it, Alvernia-Rodano-Alpi) is a region in southeast-central France created by the 2014 territorial reform of French regions; it resulted from the merger of Auvergne and Rhône-Alpes. The new region came into effect on 1 January 2016, after the regional elections in December 2015. The region covers an area of , making it the third largest in metropolitan France; it had a population of 7,994,459 in 2018, second to Île-de-France. It consists of twelve departments and one territorial collectivity (Lyon Metropolis) with Lyon as the prefecture. This new region combines diverse geographical, sociological, economic and cultural regions, which was already true of Rhône-Alpes, as well as Auvergne, to a lesser extent. While the old Rhône-Alpes and Auvergne regions each enjoyed an unity defined by axes of communication and the pull of their respective metropoles,With the exception of Haute-Loire whi ...
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France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ...
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Highest Point
A list of highest points typically contains the name, elevation, and location of the highest point in each of a set of geographical regions. Such a list is important in the sport of highpointing. A partial list of highpoint lists is below: Worldwide Physical geography Global * List of highest mountains on Earth * Summits farthest from the Earth's center * List of islands by highest point By geographical region * List of highest points on each continent * List of elevation extremes by country ** List of countries by highest point ** List of highest points of African countries ** List of highest points of Asian countries ** List of highest points of European countries ** List of highest points of Oceanian countries * List of elevation extremes by region Human geography * List of highest towns by country ** List of highest cities ** List of highest large cities Within a particular country Highest points of administrative divisions * List of Brazilian states by h ...
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Ardèche
Ardèche (; oc, Ardecha; frp, Ardecha) is a department in the Auvergne-Rhône-Alpes region of Southeastern France. It is named after the river Ardèche and had a population of 328,278 as of 2019.Populations légales 2019: 07 Ardèche
INSEE
Its is in Privas, but its largest city is Annonay.


History


Prehistory and ancient history


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Volcanic Rock
Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from lava erupted from a volcano. In other words, it differs from other igneous rock by being of volcanic origin. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constitute an important element of some sediments and sedimentary rocks. For these reasons, in geology, volcanics and shallow hypabyssal rocks are not always treated as distinct. In the context of Precambrian shield geology, the term "volcanic" is often applied to what are strictly metavolcanic rocks. Volcanic rocks and sediment that form from magma erupted into the air are called "volcaniclastics," and these are technically sedimentary rocks. Volcanic rocks are among the most common rock types on Earth's surface, particularly in the oceans. On land, they are very common at plate boundaries and in flood basalt provinces. It has been estimated t ...
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Phonolite
Phonolite is an uncommon extrusive rock, of intermediate chemical composition between felsic and mafic, with texture ranging from aphanitic (fine-grained) to porphyritic (mixed fine- and coarse-grained). Phonolite is a variation of the igneous rock trachyte that contains nepheline or leucite rather than quartz. Its intrusive equivalent is nepheline syenite. Phonolite is typically fine grained and compact. The name ''phonolite'' comes from the Ancient Greek meaning "sounding stone" due to the metallic sound it produces if an unfractured plate is hit; hence, the English name ''clinkstone'' is given as a synonym. Formation Unusually, phonolite forms from magma with a relatively low silica content, generated by low degrees of partial melting (less than 10%) of highly aluminous rocks of the lower crust such as tonalite, monzonite and metamorphic rocks. Melting of such rocks to a very low degree promotes the liberation of aluminium, potassium, sodium and calcium by melting of f ...
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