1.
Summit
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A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a maximum in elevation. The topographic terms acme, apex, peak, and zenith are synonymous, the UIAA definition is that a summit is independent if it has a prominence of 30 metres or more, it is a mountain if it has a prominence of at least 300 metres. This can be summarised as follows, A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top, Summit may also refer to the highest point along a line, trail, or route. In many parts of the western United States, the term refers to the highest point along a road, highway. For example, the highest point along Interstate 80 in California is referred to as Donner Summit while the highest point on Interstate 5 is Siskiyou Mountain Summit, geoid Hill List of highest mountains Maxima and minima Nadir Summit accordance Peak finder
2.
Topographic prominence
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It is a measure of the independence of a summit. A peaks key col is a point on this contour line. By convention, the prominence of Mount Everest, the Earths highest mountain, is taken to equal the elevation of its summit above sea level, if the peaks prominence is P metres, to get from the summit to any higher terrain one must descend at least P metres. Together with the convention for Mount Everest, this implies that the prominence of any island or continental highpoint is equal to its elevation above sea level, for every ridge connecting the peak to higher terrain, find the lowest point on the ridge. The key col is defined as the highest of these cols, the prominence is the difference between the elevation of the peak and the elevation of the key col. The following mental exercise may illustrate the meaning of topographic prominence, imagine you are standing at the top of a peak and imagine that an imaginary sea level rises to your feet. Now slowly lower the sea level and an imaginary island appears beneath your feet. Your island will grow and will merge with other islands that emerge, the parent peak may be either close or far from the subject peak. The summit of Mount Everest is the parent peak of Aconcagua at a distance of 17,755 km, the key col may also be close or far from the subject peak. The key col for Aconcagua is the Bering Strait at a distance of 13,655 km, the key col for the South Summit of Mount Everest is about 100 m distant. Prominence is interesting to many mountaineers because it is a measurement that is strongly correlated with the subjective significance of a summit. Peaks with low prominences are either subsidiary tops of some higher summit or relatively insignificant independent summits, peaks with high prominences tend to be the highest points around and are likely to have extraordinary views. Only summits with a sufficient degree of prominence are regarded as independent mountains, for example, the worlds second-highest mountain is K2. While Mount Everests South Summit is taller than K2, it is not considered an independent mountain because it is a subsummit of the main summit, many lists of mountains take topographic prominence as a criterion for inclusion, or cutoff. John and Anne Nuttalls The Mountains of England and Wales uses a cutoff of 15 m, in the contiguous United States, the famous list of fourteeners uses a cutoff of 300 ft /91 m. Also in the U. S.2000 feet of prominence has become a threshold that signifies that a peak has major stature. This generates lists of peaks ranked by prominence, which are different from lists ranked by elevation. Such lists tend to emphasize isolated high peaks, such as range or island high points, one advantage of a prominence-ranked list is that it needs no cutoff, since a peak with high prominence is automatically an independent peak
3.
Haute-Savoie
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Haute-Savoie is a department in the Auvergne-Rhône-Alpes region of south-eastern France, bordering both Switzerland and Italy. To the north is Lake Geneva and Switzerland, to the south and southeast are the Mont Blanc, the French entrance to the Mont Blanc Tunnel to Italy is in Haute-Savoie. It is noted for winter sports, the first Winter Olympic Games were held at Chamonix in 1924, before 1860, the territory occupied by modern Haute-Savoie and the adjoining department of Savoie had been part of the Kingdom of Sardinia since the Treaty of Utrecht in 1713. Annexation of the region by France was formalized in the Treaty of Turin on March 24,1860, from November 1942 to September 1943, Haute-Savoie was subjected to military occupation by Fascist Italy. The Maquis des Glières operated from Haute-Savoie, Haute-Savoie comprises four arrondissements, divided into 294 communes and 17 cantons. Haute-Savoie has the largest range of elevations of all the departments in France, the lowest point is 250 metres in the Rhône River Valley, some of the worlds best-known ski resorts are in Haute-Savoie. Its mountainous terrain makes mountain passes important to trade and economic life, some of the most important are the Col de la Forclaz and the Mont Blanc Tunnel, linking Chamonix to Courmayeur in the Aosta Valley. As of 1996,178,624 hectares of Haute-Savoie is forested, compared to 34.4 percent for the Rhone-Alpes region and 27.1 percent for France as a whole. Of the forested area 141,063 hectares is managed for timber and other forest products, national nature reserves are designated by the French government as areas where an outstanding natural heritage is present in both rare and typical areas in terms of species and geology. Management is charged to local organizations, with direction and evaluation focusing on protection for future generations. Lake Annecy is an attraction, along with the town of Évian-les-Bains, perhaps the best-known town on the French shore of Lake Geneva. Haute-Savoie is entirely within the watershed of the Rhone, there were 4,450 farmers in 1999,4,800 farmers and over 1,700 full-time farm employees at the end of 2006. In 1999, crop production was valued at €71.5 million, dairy production is a large part of the Haute-Savoie economy, earning €117.2 million in 2006 and representing 74 percent of the net animal-product worth. The average expenditure per capita in 2006 was €21,706, with the 2004–2007 rise of the euro, Swiss customer traffic decreased five or six percent. At the end of 2006, traditional small businesses represented 84 percent of businesses and 40 percent of retail space,4,301 companies were established in 2004 in Haute-Savoie, nearly 80 percent in the service sector, with a high percentage offering service to individuals. This accounted for 21.6 percent of new businesses, the most active sectors were real estate, construction, business services and the food industry. In 1999, Haute-Savoie had 2,779 industrial companies producing 13.60 percent of all business income. T, firms engaged in screw-cutting are major employers in the department. While the automotive industry is the client, firms also service the electronics, household-appliance
4.
France
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France, officially the French Republic, is a country with territory in western Europe and several overseas regions and territories. The European, or metropolitan, area of France extends from the Mediterranean Sea to the English Channel and the North Sea, Overseas France include French Guiana on the South American continent and several island territories in the Atlantic, Pacific and Indian oceans. France spans 643,801 square kilometres and had a population of almost 67 million people as of January 2017. It is a unitary republic with the capital in Paris. Other major urban centres include Marseille, Lyon, Lille, Nice, Toulouse, during the Iron Age, what is now metropolitan France was inhabited by the Gauls, a Celtic people. The area was annexed in 51 BC by Rome, which held Gaul until 486, France emerged as a major European power in the Late Middle Ages, with its victory in the Hundred Years War strengthening state-building and political centralisation. During the Renaissance, French culture flourished and a colonial empire was established. The 16th century was dominated by civil wars between Catholics and Protestants. France became Europes dominant cultural, political, and military power under Louis XIV, in the 19th century Napoleon took power and established the First French Empire, whose subsequent Napoleonic Wars shaped the course of continental Europe. Following the collapse of the Empire, France endured a succession of governments culminating with the establishment of the French Third Republic in 1870. Following liberation in 1944, a Fourth Republic was established and later dissolved in the course of the Algerian War, the Fifth Republic, led by Charles de Gaulle, was formed in 1958 and remains to this day. Algeria and nearly all the colonies became independent in the 1960s with minimal controversy and typically retained close economic. France has long been a centre of art, science. It hosts Europes fourth-largest number of cultural UNESCO World Heritage Sites and receives around 83 million foreign tourists annually, France is a developed country with the worlds sixth-largest economy by nominal GDP and ninth-largest by purchasing power parity. In terms of household wealth, it ranks fourth in the world. France performs well in international rankings of education, health care, life expectancy, France remains a great power in the world, being one of the five permanent members of the United Nations Security Council with the power to veto and an official nuclear-weapon state. It is a member state of the European Union and the Eurozone. It is also a member of the Group of 7, North Atlantic Treaty Organization, Organisation for Economic Co-operation and Development, the World Trade Organization, originally applied to the whole Frankish Empire, the name France comes from the Latin Francia, or country of the Franks
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Mountain range
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A mountain range is a geographic area containing numerous geologically related mountains. A mountain system or system of ranges, sometimes is used to combine several geological features that are geographically related. Mountain ranges are usually segmented by highlands or mountain passes and valleys, individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, most geologically young mountain ranges on the Earths land surface are associated with either the Pacific Ring of Fire or the Alpide Belt. The Andes is 7,000 kilometres long and is considered the worlds longest mountain system. The Alpide belt includes Indonesia and southeast Asia, through the Himalaya, the belt also includes other European and Asian mountain ranges. The Himalayas contain the highest mountains in the world, including Mount Everest, mountain ranges outside of these two systems include the Arctic Cordillera, the Urals, the Appalachians, the Scandinavian Mountains, the Altai Mountains and the Hijaz Mountains. If the definition of a range is stretched to include underwater mountains. The mountain systems of the earth are characterized by a tree structure, the sub-range relationship is often expressed as a parent-child relationship. For example, the White Mountains of New Hampshire and the Blue Ridge Mountains are sub-ranges of the Appalachian Mountains, equivalently, the Appalachians are the parent of the White Mountains and Blue Ridge Mountains, and the White Mountains and the Blue Ridge Mountains are children of the Appalachians. The position of mountains influences climate, such as rain or snow, when air masses move up and over mountains, the air cools producing orographic precipitation. As the air descends on the side, it warms again and is drier. Often, a shadow will affect the leeward side of a range. Mountain ranges are constantly subjected to forces which work to tear them down. Erosion is at work while the mountains are being uplifted and long after until the mountains are reduced to low hills, rivers are traditionally believed to be the principle erosive factor on mountain ranges, with their ability of bedrock incision and sediment transport. The rugged topography of a range is the product of erosion. The basins adjacent to a mountain range are filled with sediments which are buried and turned into sedimentary rock. The early Cenozoic uplift of the Rocky Mountains of Colorado provides an example and this mass of rock was removed as the range was actively undergoing uplift
6.
Mont Blanc massif
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The Mont Blanc massif is a mountain range in the Alps, located mostly in France and Italy, but also straddling Switzerland at its northeastern end. It contains eleven major independent summits, each over 4,000 metres in height, and is named after Mont Blanc, the mountains of the massif consist mostly of granite and gneiss rocks, and at high altitudes the vegetation is an arctic-alpine flora. The valleys that delimit the massif were used as communication routes by the Romans until they left around the 5th century AD, the region has remained of some military importance through to the mid-20th century. A peasant farming economy operated within these valleys for centuries until the glaciers. Word of these impressive sights began to spread, and Mont Blanc was finally climbed in 1786, the region is now a major tourist destination, drawing in over six million visitors per year. It provides a range of opportunities for outdoor recreation and activities such as sight-seeing, hiking. Around one hundred people a year die across its mountains and, occasionally, bodies have been lost, access into the mountains is facilitated by cable cars, mountain railways and mountain huts which offer overnight refuge to climbers and skiers. The long-distance Tour du Mont Blanc hiking trail circumnavigates the whole massif in an 11-day trek of 170 kilometres, the Mont Blanc Tunnel connects the French town of Chamonix on the northern side with the Italian town of Courmayeur in the south. The high mountains have provided opportunities for scientific research, including neutrino measurements within the Tunnel. The Mont Blanc massif is 46 kilometres long and lies in a southwest to northeasterly direction across the borders of France, Italy, at its widest point the massif is 20 km across. The northern side of the massif lies mostly within France, and is bounded by the valley of the River Arve, containing the towns of Argentière, Chamonix and Les Houches. The southern side of the massif lies mostly within Italy and is bounded by the Val Veny, from Courmayeur these waters flow southwards as the Dora Baltea towards Aosta, eventually joining the Po river. However, the southwestern end of the massif does lie within France and is bounded by the Vallée des Glaciers. The northeastern end of the massif falls within Switzerland, and is bounded by a valley, confusingly also called Val Ferret. Its watercourse, la Dranse de Ferret, flows northwards to join the Rhône at Martigny, the borders of all three countries converge at a tripoint near the summit of Mont Dolent at an altitude of 3,820 metres. From here the border turns southwards over the Dômes de Miage, the Swiss – Italian border runs southwest from Mont Dolent, down to the twin passes of Col Ferret. The massif contains 11 main summits over 4,000 metres in altitude, crowning the massif is Mont Blanc, the highest mountain in the Alps and in western Europe. From the summit of Mont Blanc to the River Arve near Chamonix there is a 3,800 metres drop over a distance of just 8 kilometres, because of its great elevation, much of the massif is snow- and ice-covered, and has been deeply dissected by glaciers
7.
Granite
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Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. Granites can be white, pink, or gray in color. The word granite comes from the Latin granum, a grain, in reference to the structure of such a holocrystalline rock. By definition, granite is a rock with at least 20% quartz. The term granitic means granite-like and is applied to granite and a group of igneous rocks with similar textures and slight variations in composition. Occasionally some individual crystals are larger than the groundmass, in case the texture is known as porphyritic. A granitic rock with a texture is known as a granite porphyry. Granitoid is a general, descriptive field term for lighter-colored, coarse-grained igneous rocks, petrographic examination is required for identification of specific types of granitoids. The extrusive igneous rock equivalent of granite is rhyolite, Granite is nearly always massive, hard and tough, and therefore it has gained widespread use throughout human history, and more recently as a construction stone. The average density of granite is between 2.65 and 2.75 g/cm3, its compressive strength usually lies above 200 MPa, and its viscosity near STP is 3–6 •1019 Pa·s. The melting temperature of dry granite at ambient pressure is 1215–1260 °C, it is reduced in the presence of water. Granite has poor primary permeability, but strong secondary permeability, true granite according to modern petrologic convention contains both plagioclase and alkali feldspars. When a granitoid is devoid or nearly devoid of plagioclase, the rock is referred to as alkali feldspar granite, when a granitoid contains less than 10% orthoclase, it is called tonalite, pyroxene and amphibole are common in tonalite. A granite containing both muscovite and biotite micas is called a binary or two-mica granite, two-mica granites are typically high in potassium and low in plagioclase, and are usually S-type granites or A-type granites. A worldwide average of the composition of granite, by weight percent, based on 2485 analyses. Much of it was intruded during the Precambrian age, it is the most abundant basement rock that underlies the relatively thin veneer of the continents. Outcrops of granite tend to form tors and rounded massifs, granites sometimes occur in circular depressions surrounded by a range of hills, formed by the metamorphic aureole or hornfels. Granite often occurs as small, less than 100 km² stock masses
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