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Silfra
Silfra () is a rift formed in the Mid-Atlantic Ridge – the divergent tectonic boundary between the North American and Eurasian plates – and is located in the Þingvallavatn Lake in the Þingvellir National Park in Iceland. Formation Silfra lies in the Þingvellir valley and within the Þingvellir National Park. The valley, and Silfra itself, were formed by the divergent tectonic drift of the Eurasian and North American plates. The plates drift about farther apart every year, building up tension between the plates and the earth mass above. This tension is relieved through periodic major earthquakes at approximately ten-year intervals, which have caused cracks and fissures to form in Þingvellir valley; Silfra lies at the rim of the Þingvallavatn Lake and is one of the largest and deepest of these fissures. The Silfra fissure intercepts a major aquifer, which feeds multiple springs at its base.
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Þingvellir
Þingvellir (, anglicised as ThingvellirThe spelling ''Pingvellir'' is sometimes seen, although the letter "p" is unrelated to the letter thorn (letter), "þ" (thorn), which is pronounced as "th".) was the site of the Althing, Alþing, the annual parliament of Iceland from the year 930 until the last session held at in 1798. Since 1881, the parliament has been located within Alþingishúsið in Reykjavík. is now a national park in the municipality of in southwestern Iceland, about 40 km (25 miles) northeast of Iceland's capital, . is a site of historical, cultural, and geological significance, and is one of the most popular tourist destinations in Iceland. The park lies in a rift valley that marks the crest of the Mid-Atlantic Ridge and the boundary between the North American Plate, North American and Eurasian Plate, Eurasian tectonic plates. To its south lies , the largest natural lake in Iceland. National Park ( ) was founded in 1930, marking the 1000th anniversary o ...
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Þingvallavatn
Þingvallavatn (), anglicised as Thingvallavatn,The spelling ''Pingvallavatn'' is wrong as the letter “p” should never be used to represent the letter “þ” (thorn). is a rift valley lake in southwestern Iceland. With a surface of 84 km² it is the second largest lake in Iceland. Its greatest depth is 114 m. At the northern shore of the lake, at Þingvellir (after which the lake is named), the Alþingi, the national parliament, was founded in the year 930, and held its sessions there until 1799 and still as of today the name Alþingi Íslendinga is carried by the parliament of Iceland. The lake lies partially within Þingvellir National Park. The volcanic origin of the islands in the lake is clearly visible. The cracks and faults around it, of which the Almannagjá ravine is the largest, is where the Eurasian and North American tectonic plates meet. Silfra fissure is a popular scuba and snorkeling site. The only outflow from lake Þingvallavatn is the river Sog. One o ...
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Skjaldbreiður
Skjaldbreiður (, "broad shield") is an Icelandic lava shield formed in one huge and protracted eruption roughly 9,500 years ago. The extensive lava fields which were produced by this eruption, flowed southwards, and formed the basin of Þingvallavatn, Iceland's largest lake, and Þingvellir, the "Parliament Plains" where the Icelandic national assembly, the Alþing was founded in 930. The volcano summit is at 1,060 metres, and its crater measures roughly 300 metres in diameter. Straddling the Mid-Atlantic ridge, the lava fields from Skjaldbreiður have been torn and twisted over the millennia, forming a multitude of fissures and rifts inside the Þingvellir National Park, the best known of which are Silfra Silfra () is a rift formed in the Mid-Atlantic Ridge – the divergent tectonic boundary between the North American and Eurasian plates – and is located in the Þingvallavatn Lake in the Þingvellir National Park in Iceland. Formation Sil ..., Alma ...
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Sport In Iceland
Sports in Iceland are very popular. Popular sports include football, handball, athletics, basketball, chess, golf, volleyball, tennis, skiing, snowboarding, ice hockey, swimming, rock climbing and mountain climbing; horseback riding on Icelandic horses is also popular and also archery. In some of those sports, namely football, handball, and basketball, Iceland is extremely successful, considering its population. It manages to compete at comparable level with countries that have 10-200 times its population. Iceland's most famous athlete comes from the world of football. Eiður Guðjohnsen has played in England's Premier League for Chelsea F.C. winning the league title and the Community Shield twice, as well as the League Cup once. He also played in La Liga for FC Barcelona, where he was part of the team that won the Treble of the league, Copa del Rey and the UEFA Champions League in the 2008–09 season. Athletics In athletics, shot putter Gunnar Huseby became one of the cou ...
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List Of Lakes Of Iceland
This is a list of lakes of Iceland (partially indicating surface, depth and volume). Iceland has over 20 lakes larger than 10 km² (4 sq mi), and at least 40 others varying between 2.5 and 10 km² (1 to 4 sq mi) in size. This list also includes a few smaller lakes and ponds that are considered notable (for example Tjörnin in Reykjavik). The figures for many of the smaller lakes are unreliable. Also, some larger lakes vary considerably in size between years or seasons or, for the reservoirs, according to the needs of power plants. Some power plant reservoirs may not be present despite being larger than listed lakes. Larger lakes (>10 km²) Smaller lakes (90 m (sensitive to climatic and geological change and was getting smaller - started recovering again in 2004) * Breiðárlón, 8 km² ? * Reyðarvatn, 8.3 km² * Hítarvatn, 7.6 km², 24 m * Miklavatn, 6.6 km², 23 m * Árneslón, 6.5 km², 116 * Sigríðarstaðavatn, 6.2 km² * Lax ...
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Geography Of Iceland
Iceland ( ) is an island country at the confluence of the North Atlantic and Arctic oceans, east of Greenland and immediately south of the Arctic Circle, atop the constructive boundary of the northern Mid-Atlantic Ridge about from Scotland and from New York City. One of the world's most sparsely populated countries, Iceland's boundaries are almost the same as the main island – the world's 18th largest in area and possessing almost all of the country's area and population and also it is world's 9th largest island country. It is the westernmost European country and has more land covered by glaciers than in all of continental Europe. The total size is . It has an exclusive economic zone of . Statistics Iceland is an island country in Northern Europe, straddling the Eurasian and North American plates between the Greenland Sea and the North Atlantic Ocean, northwest of the British Isles. Extent (locations outside mainland in parentheses) :North: Rifstangi, 66°32′3" N ...
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Dry Suit
A dry suit or drysuit provides the wearer with environmental protection by way of thermal insulation and exclusion of water, and is worn by divers, boaters, water sports enthusiasts, and others who work or play in or near cold or contaminated water. A dry suit normally protects the whole body except the head, hands, and possibly the feet. In hazmat configurations, however, all of these are covered as well. The main difference between dry suits and wetsuits is that dry suits are designed to prevent water from entering. This generally allows better insulation, making them more suitable for use in cold water. Dry suits can be uncomfortably hot in warm or hot air, and are typically more expensive and more complex to don. For divers, they add some degree of operational complexity and hazard as the suit must be inflated and deflated with changes in depth in order to minimize "squeeze" on descent or uncontrolled rapid ascent due to excessive buoyancy, which requires additional ski ...
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Technical Diving
Technical diving (also referred to as tec diving or tech diving) is scuba diving that exceeds the agency-specified limits of recreational diving for non-professional purposes. Technical diving may expose the diver to hazards beyond those normally associated with recreational diving, and to a greater risk of serious injury or death. The risk may be reduced by appropriate skills, knowledge and experience, and by using suitable equipment and procedures. The skills may be developed through appropriate specialised training and experience. The equipment often involves breathing gases other than air or standard nitrox mixtures, and multiple gas sources. The popularisation of the term ''technical diving'' has been credited to Michael Menduno, who was editor of the (now defunct) diving magazine ''aquaCorps Journal'', but the concept and term, ''technical diving'', go back at least as far as 1977,In his 1989 book, ''Advanced Wreck Diving'', author and leading technical diver, Gary Gentile ...
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Snorkeling
Snorkeling ( British and Commonwealth English spelling: snorkelling) is the practice of swimming on or through a body of water while equipped with a diving mask, a shaped breathing tube called a snorkel, and usually swimfins. In cooler waters, a wetsuit may also be worn. Use of this equipment allows the snorkeler to observe underwater attractions for extended periods with relatively little effort and to breathe while face-down at the surface. Snorkeling is a popular recreational activity, particularly at tropical resort locations. It provides the opportunity to observe underwater life in a natural setting without the complicated equipment and training required for scuba diving. It appeals to all ages because of how little effort is involved and is the basis of the two surface disciplines of the underwater sport of finswimming. Snorkeling is also used by scuba divers when on the surface, in underwater sports such as underwater hockey and underwater rugby, and as part o ...
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Scuba Diving
Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface air supply. The name "scuba", an acronym for "Self-Contained Underwater Breathing Apparatus", was coined by Christian J. Lambertsen in a patent submitted in 1952. Scuba divers carry their own source of breathing gas, usually compressed air, affording them greater independence and movement than surface-supplied divers, and more time underwater than free divers. Although the use of compressed air is common, a gas blend with a higher oxygen content, known as enriched air or nitrox, has become popular due to the reduced nitrogen intake during long and/or repetitive dives. Also, breathing gas diluted with helium may be used to reduce the likelihood and effects of nitrogen narcosis during deeper dives. Open circuit scuba systems discharge the breathing gas into the environment as it is exhaled, and consist of one or more diving cylinders containing ...
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