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Surtshellir
Surtshellir () is a lava cave located in western Iceland, around 60 km from the settlement of Borgarnes. Approximately a mile in length, it is one of the longest such caves in the country. It was the first known lava tube in the world, at least by modern speleologists, and remained the longest known lava tube until the end of the 19th century. While mentioned in the medieval historical-geographical work ''Landnámabók'', Eggert Ólafsson was the first to give a thorough documentation of the cave in his 1750 travels of the region. It is named after the fire giant Surtr, a prominent figure in Norse mythology, who is prophesied to one day engulf the world in the fire of his flaming sword. Surtshellir was formed as a lava tube in a massive, effusive, shield-volcano eruption at the northern end of the Prestahnúkur volcanic system. At least three and possibly four vents opened on the edge of Langjökull glacier during this long-lived eruption, which has been dated to the firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surtshellir2
Surtshellir () is a lava cave located in western Iceland, around 60 km from the settlement of Borgarnes. Approximately a mile in length, it is one of the longest such caves in the country. It was the first known lava tube in the world, at least by modern speleologists, and remained the longest known lava tube until the end of the 19th century. While mentioned in the medieval historical-geographical work ''Landnámabók (, "Book of Settlements"), often shortened to , is a medieval Icelandic written work which describes in considerable detail the settlement () of Iceland by the Norse in the 9th and 10th centuries CE. is divided into five parts and over ...'', Eggert Ólafsson was the first to give a thorough documentation of the cave in his 1750 travels of the region. It is named after the jötunn, fire giant Surtr, a prominent figure in Norse mythology, who is prophesied to one day engulf the world in the fire of his flaming sword. Surtshellir was formed as a la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surtr
In Norse mythology, Surtr (Old Norse "black"Orchard (1997:154). "the swarthy one",Simek (2007:303–304) Surtur in modern Icelandic), also sometimes written Surt in English, is a jötunn. Surtr is attested in the ''Poetic Edda'', compiled in the 13th century from earlier traditional sources, and the ''Prose Edda'', written in the 13th century by Snorri Sturluson. In both sources, Surtr is foretold as being a major figure during the events of Ragnarök; carrying his bright sword, he will go to battle against the Æsir, he will battle the major god Freyr, and afterward the flames that he brings forth will engulf the Earth. In a book from the ''Prose Edda'' additional information is given about Surtr, including that he is stationed guarding the frontier of the fiery realm Múspell, that he will lead "Múspell's sons" to Ragnarök, and that he will defeat Freyr. Surtr has been the subject of place names and artistic depictions, and scholars have proposed theories regarding elements o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava Tubes
A lava tube, or pyroduct, is a natural conduit formed by flowing lava from a volcanic vent that moves beneath the hardened surface of a lava flow. If lava in the tube empties, it will leave a cave. Formation A lava tube is a type of lava cave formed when a low-viscosity lava flow develops a continuous and hard crust, which thickens and forms a roof above the still-flowing lava stream. Tubes form in one of two ways: either by the crusting over of lava channels, or from pāhoehoe flows where the lava is moving under the surface. Lava usually leaves the point of eruption in channels. These channels tend to stay very hot as their surroundings cool. This means they slowly develop walls around them as the surrounding lava cools and/or as the channel melts its way deeper. These channels can get deep enough to crust over, forming an insulating tube that keeps the lava molten and serves as a conduit for the flowing lava. These types of lava tubes tend to be closer to the lava erupt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava Cave
A lava cave is any cave formed in volcanic rock, though it typically means caves formed by volcanic processes, which are more properly termed volcanic caves. Sea caves, and other sorts of erosional and crevice caves, may be formed in volcanic rocks, but through non-volcanic processes and usually long after the volcanic rock was emplaced. Types There are many types of lava caves, with these being the most notable: *Lava tubes are the most common and extensive type of lava cave. Lava tubes usually form in pahoehoe lava flows, though exceptions exist. As the lava is emitted from the vent area, it spreads in the path of least resistance. The outer layers of the lava harden, while the interior forms horizontal conduits that channel the advance of the flow. These conduits are the beginning stages of lava tubes that serve to insulate the heat from the lava which then provides a way for the lava flow to advance longer distances. Dependent upon the slope, terrain, and lava viscosity, diffe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iceland
Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its surrounding areas) is home to over 65% of the population. Iceland is the biggest part of the Mid-Atlantic Ridge that rises above sea level, and its central volcanic plateau is erupting almost constantly. The interior consists of a plateau characterised by sand and lava fields, mountains, and glaciers, and many glacial rivers flow to the sea through the lowlands. Iceland is warmed by the Gulf Stream and has a temperate climate, despite a high latitude just outside the Arctic Circle. Its high latitude and marine influence keep summers chilly, and most of its islands have a polar climate. According to the ancient manuscript , the settlement of Iceland began in 874 AD when the Norwegian chieftain Ingólfr Arnarson became the first p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borgarnes
Borgarnes () is a town located on a peninsula at the shore of Borgarfjörður in Iceland and is the largest town in the Borgarbyggð municipality with a population of about 3800 residents. It is a main junction in Iceland and the gateway to the Snaefellsnes National Park. Iceland's capital Reykjavik is 69 kilometers from the center of Borgarnes. The second largest bridge in Iceland, the Borgarfjarðarbrú, connects traffic to and from Reykjavik. Local area There are four national forests in the region (approximately 40 km from the town center) which are overseen by the Icelandic Forest Service. The forest in Borgarfjardur are mix of Birch woods and native conifers. These forests are Vatnshorn, Norðtunga, Selskógar, Stalpastaðir and Jafnaskarð. Borgarnes has the oldest and tallest of the birch trees in Iceland. History Borgarnes was founded in the late nineteenth-century, in a region that served as the setting of Egil's Saga. The town draws its name from Borg á M ... [...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] |
Landnámabók
(, "Book of Settlements"), often shortened to , is a medieval Icelandic written work which describes in considerable detail the settlement () of Iceland by the Norse in the 9th and 10th centuries CE. is divided into five parts and over 100 chapters. The first part tells of how the island was found. The latter parts count settlers quarter by quarter, beginning with west and ending with south. It traces important events and family history into the 12th century. More than 3,000 people and 1,400 settlements are described. It tells where each settler settled and provides a brief genealogy. Sometimes short anecdote-like stories are also included. lists 435 men (' or ) as the initial settlers, the majority of them settling in the northern and southwestern parts of the island. It remains an invaluable source on both the history and genealogy of the Icelandic people. Some have suggested a single author, while others have believed it to have been put together when people met at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eggert Ólafsson
Eggert Ólafsson (1 December 1726 – 30 May 1768) was an Icelandic explorer, writer and conservator of the Icelandic language. He also worked to revive the Icelandic culture and economy. Background He was the son of a farmer from Svefneyjar in Breiðafjörður. He studied natural sciences, Classics, Grammar, Law, and Agriculture at the University of Copenhagen. He obtained a bachelor's degree from the University of Copenhagen. In 1772 he posthumously published ''Reise igiennem Island'' (Travels in Iceland), an account of the scientific and cultural survey he conducted between 1752 and 1757. The book remains a seminal work on Iceland and its people. Eggert wrote on a wide range of topics. His writing has made him known for his pro-conservation stance on the Icelandic language, which has undergone significant change since the 18th century. Eggert was a devout patriot, and his literary works, chiefly his poems, burn with this fervor. He used his writings to stir up patriotism, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norse Mythology
Norse, Nordic, or Scandinavian mythology is the body of myths belonging to the North Germanic peoples, stemming from Old Norse religion and continuing after the Christianization of Scandinavia, and into the Nordic folklore of the modern period. The northernmost extension of Germanic mythology and stemming from Proto-Germanic folklore, Norse mythology consists of tales of various deities, beings, and heroes derived from numerous sources from both before and after the pagan period, including medieval manuscripts, archaeological representations, and folk tradition. The source texts mention numerous gods such as the thunder-god Thor, the raven-flanked god Odin, the goddess Freyja, and numerous other deities. Most of the surviving mythology centers on the plights of the gods and their interaction with several other beings, such as humanity and the jötnar, beings who may be friends, lovers, foes, or family members of the gods. The cosmos in Norse mythology consists of Nine Worl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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