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Reseau Jean Bernard
Gouffre Jean-Bernard or Réseau Jean Bernard, sometimes known simply as Jean Bernard, is one of the deepest caves known in the world. It is in the Alps in Samoëns, France. The first entrance to the cave was found by the French caving group Groupe Vulcain in 1963. More entrances have been found over the years since, and currently at least thirteen are known. The highest entrance, known as C37, is at above sea level.. The cave is named after Jean Dupont and Bernard Raffy, two Groupe Vulcain members who died in 1963 in an unrelated expedition. Exploration Exploration of the cave began shortly after discovery in 1963. By 1969, the cave had been explored to a depth of below the level of the highest entry point. At that point, further exploration was blocked by a water-filled tunnel. Subsequently, another entrance was discovered that had passages that bypassed the flooded tunnel. The cave was explored to before again becoming blocked, this time by fallen rocks. In 1976, these roc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samoëns
Samoëns () is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region in south-eastern France. It is the principal commune for the canton which bears its name. The town of Samoëns is located in the Vallée du Giffre (Giffre Valley) in the French Alps. Stonemasons Stone has long been a traditional feature of the Upper Giffre Valley which is dotted with limestone quarries (hardness coefficient, 13). To supplement their income from farming, the men in the region used to work stone. In 1659, there were so many ''frahans'' (the local name for stonecutters and masons) in Samoëns and their expertise was so well known that they set up a very famous brotherhood. It engaged in charity work, taking care of the sick and training young apprentices in its own school of draughtsmen, which had an extensive library. The members of the brotherhood of masons and stonecutters in Samoëns were contacted for leading construction projects. They worked with Vauban on his fort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Deepest Caves
This list of deepest caves includes the deepest known natural caves according to maximum surveyed depth . The depth value is measured from the highest to the lowest accessible cave point. See also *List of caves *List of deepest mines * List of longest caves * List of sinkholes * Show cave * Speleology External links World's Deepest Caves References {{DEFAULTSORT:Deepest caves Deepest Caves Caves A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea ... Vertical position ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alps
The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Switzerland, Italy, Liechtenstein, Austria, Germany, and Slovenia. The Alpine arch generally extends from Nice on the western Mediterranean to Trieste on the Adriatic and Vienna at the beginning of the Pannonian Basin. The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn. Mont Blanc spans the French–Italian border, and at is the highest mountain in the Alps. The Alpine region area contains 128 peaks higher than . The altitude and size of the range affect the climate in Europe; in the mountains, precipitation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea caves, rock shelters, and grottos, that extend a relatively short distance into the rock and they are called ''exogene'' caves. Caves which extend further underground than the opening is wide are called ''endogene'' caves. Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called ''caving'', ''potholing'', or ''spelunking''. Formation types The formation and development of caves is known as ''speleogenesis''; it can occur over the course of millions of years. Caves can range widely in size, and are formed by various geological processes. These may involve a combination of chemical processes, erosion by water, tectonic forces, microorgani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Level
Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardised geodetic datumthat is used, for example, as a chart datum in cartography and marine navigation, or, in aviation, as the standard sea level at which atmospheric pressure is measured to calibrate altitude and, consequently, aircraft flight levels. A common and relatively straightforward mean sea-level standard is instead the midpoint between a mean low and mean high tide at a particular location. Sea levels can be affected by many factors and are known to have varied greatly over geological time scales. Current sea level rise is mainly caused by human-induced climate change. When temperatures rise, Glacier, mountain glaciers and the Ice sheet, polar ice caps melt, increasing the amount of water in water bodies. Because most of human settlem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Caves
This is a list of caves of the world that have articles or that are properly cited. They are sorted by continent and then country. Caves which are in overseas territories on a different continent than the home country are sorted by the territory's continent and name. Africa File:Cango Caves, Western Cape (6253225986).jpg, The Cango caves in western cape. File:African cave paintings.jpg, African cave paintings. File:Lithic Industries at Blombos Cave, Southern Cape, South Africa (c. 105 – 90 Ka).jpg, Lithic Industries at Blombos Cave, Southern Cape, South Africa. File:Wonder Caves Praying Mary.JPG, Wonder Caves Praying Mary. Algeria * Aïn Taïba * Anou Achra Lemoun * Anou Boussouil * Anou Ifflis * Anou Timedouine * Gueldaman caves * Ghar Boumâaza * Grotte de Cervantes * Kef Al Kaous * Rivière De La Tafna Botswana * Gcwihaba * Rhino Cave Cameroon * Gouffre de Mbilibekon * Grottes de Linté * Grotte de Loung * Grotte de Mfouda * Grotte Fovu [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speleology
Speleology is the scientific study of caves and other karst features, as well as their make-up, structure, physical properties, history, life forms, and the processes by which they form (speleogenesis) and change over time (speleomorphology). The term ''speleology'' is also sometimes applied to the recreational activity of exploring caves, but this is more properly known as ''caving'', ''potholing'' (British English), or ''spelunking''. Speleology and caving are often connected, as the physical skills required for ''in situ'' study are the same. Speleology is a cross-disciplinary field that combines the knowledge of chemistry, biology, geology, physics, meteorology, and cartography to develop portraits of caves as complex, evolving systems. History Before modern speleology developed, John Beaumont wrote detailed descriptions of some Mendip caves in the 1680s. The term speleology was coined by Émile Rivière in 1890. Prior to the mid-nineteenth century the scientific valu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Haute-Savoie
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are the fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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