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Hallasan
Hallasan () is a shield volcano comprising much of Jeju Island in South Korea. Its summit, at , is the highest point in the country. The area around the mountain is a designated national park, named Hallasan National Park. Hallasan is commonly considered to be one of the three main mountains of South Korea, along with Jirisan and Seoraksan. The Hallasan Natural Reserve was designated as a South Korean Natural Monument number 182 on October 12, 1966. Names Alternate English names for the mountain include ''Hanla Mountain'' and ''Mount Halla'', and older English sources refer to the peak as ''Mount Auckland''. Hallasan is written in Hangul as if it were ''Hanrasan'' (), but is still pronounced ''Hallasan''. In the past, Hallasan has been known by numerous other names in Korean including ''Buak'' (), ''Wonsan'' (), ''Jinsan'' (), ''Seonsan'' (), ''Dumuak'' (), ''Burasan'' (), ''Yeongjusan'' (), and ''Hyeolmangbong'' (). Geology and geography Hallasan Hallasan is a massive s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hallasan National Park
Hallasan National Park () is located on and around the mountain Hallasan in Jeju Province, South Korea. It was designated as the 9th national park in 1970. Hallasan is a shield volcano that is the highest mountain in South Korea. It was designated a UNESCO Biosphere Reserve in 2002, and a World Heritage Site in 2007. The park is managed by Jeju Special Self-Governing Province. It is the only out of 22 national parks that is not managed by the Korea National Park Service. Trails Hallasan has 7 trails: Eorimok Trail (6.8 km), Yeongsil Trail (5.8 km), Seongpanak Trail (9.6 km), Seokgulam Trail (1.5 km), Gwaneumsa Trail (8.7 km), Donnaeko Trail (7 km), and Eoseungsaengak Trail (1.3 km). The longest trail is Seongpanak Trail which takes about 4.5 hours. * Eorimok Trail (; 6.8 km): Eorimok Trail Starts from Hallasan National Park’s Visitors center (altitude 970 m) and finishes at the South cliff junction (altitude 1.600 m). It takes about 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeju Province
Jeju Province (; ), officially Jeju Special Self-Governing Province (Jeju language, Jeju: ; ), is the southernmost Provinces of South Korea, province of South Korea, consisting of eight inhabited and 55 uninhabited islands, including Marado, Udo (island), Udo, the Chuja Islands, Chuja Archipelago, and the country's largest island, Jeju Island.formerly transliterated as Cheju Island or Cheju Do, the island was also previously known as Quelpart to Europeans and as Saishū during the Korea under Japanese rule, Japanese occupation of Korea. The province is located in the Korea Strait, with the Korea, Korean Peninsula to the northwest, Japan to the east, and China to the west. The province has two cities: the capital Jeju City, on the northern half of the island, and Seogwipo, on the southern half of the island. The island is home to the shield volcano Hallasan, the highest point in South Korea. Jeju language, Jeju and Korean language, Korean are the official languages of the province, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeju Island
Jeju Island (Jeju language, Jeju/) is South Korea's largest island, covering an area of , which is 1.83% of the total area of the country. Alongside outlying islands, it is part of Jeju Province and makes up the majority of the province. The island lies in the Korea Strait, south of the nearest point on the Korean Peninsula. The Jeju people are indigenous to the island, and it has been populated by modern humans since the early Neolithic, Neolithic period. The Jeju language is considered critically endangered by UNESCO. It is also one of the regions of Korea where Korean shamanism, Shamanism is most intact. Jeju Island has an oval shape and is east–west and north–south, with a gentle slope around Hallasan in the center. The length of the main road is and the coastline is . On the northern end of Jeju Island is Gimnyeong Beach, on the southern end Songaksan (Jeju), Songak Mountain, the western end Suwolsan, Suwol Peak, and the eastern end Seongsan Ilchulbong. The island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeju Language
Jeju (Jeju: ; Jeju RR: , or , or ), often called Jejueo or Jejuan in English-language scholarship, is a Koreanic language originally from Jeju Island, South Korea. It is not mutually intelligible with mainland Korean dialects. While it was historically considered a divergent Jeju dialect of the Korean language, it is increasingly referred to as a separate language in its own right. It is declining in usage and was classified by UNESCO in 2010 as critically endangered, the highest level of language endangerment possible. Revitalization efforts are ongoing. The consonants of Jeju are similar to those of Seoul Korean, but Jeju has a larger and more conservative vowel inventory. Jeju is a head-final, agglutinative, suffixing language like Korean. Nouns are followed by particles that may function as case markers. Verbs inflect for tense, aspect, mood, evidentiality, relative social status, formality, and other grammatical information. Korean and Jeju differ significantly in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitic Cone
A parasitic cone (also adventive cone, satellite cone, satellitic cone or lateral cone) is the cone-shaped accumulation of volcanic material not part of the central vent of a volcano. It forms from eruptions from fractures on the flank of the volcano. These fractures occur because the flank of the volcano is unstable. Eventually, the fractures reach the magma chamber and generate eruptions called flank eruptions, which, in turn, produce a parasitic cone. A parasitic cone can also be formed from a dike or sill cutting up to the surface from the central magma chamber in an area different from the central vent. A peculiar example of multiple parasitic cones is Jeju Island in South Korea. Jeju Island features 368 " oreums" (Korean: ; "mount"), which lie in a roughly lateral line on either side of the island's central dormant shield volcano Hallasan. See also * Volcanic crater A volcanic crater is an approximately circular depression in the ground caused by volcanic activ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seoraksan
Seoraksan (), or Mount Sorak, is the highest mountain in the Taebaek mountain range in the Gangwon Province in eastern South Korea. It is located in the Seoraksan National Park, near Sokcho. After the Hallasan volcano on Jeju Island and Jirisan in the south, Seoraksan is the third highest mountain in South Korea. The peak Daechongbong () of Seoraksan reaches 1,708 meters (5,603 feet). The mountain is sometimes considered the backbone of South Korea. The mountain is also part of a biosphere reserve: Mount Sorak Biosphere Reserve. Geography Seoraksan is divided into Naeseorak (Inner Seorak), Oaeseorak (Outer Seorak), and Namseorak (South Seorak). Naeseorak (Inner Seorak) The area belonging to Inje-gun in the northwest. Daecheong-bong ou Daecheong Peak is called Naeseolak. Naeseorak includes various features, among which Baekdam Valley, Gaya-dong Valley, Gugokdam Valley, Gugokdam Valley, 12 Seonnyeondang, Daeseung Falls and Yonga-jangseong (Fortress of dragon's tee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jirisan
Jirisan () is a mountain located in the southern region of South Korea. It is the second-tallest mountain in South Korea after Jeju Island's Hallasan, and is the tallest mountain in mainland South Korea. The 1915m-high mountain is located in Jirisan National Park. The park spans three provinces: (North and South Jeolla Province and South Gyeongsang Province). It is the largest in South Korea. The largest proportion of the national park is in South Gyeongsang. The highest peak of the mountain, Cheonwangbong is also located in this province. Another well-known peak is Samsinbong (Three Spirits Peak). Jirisan is at the southern end of the Sobaek and Baekdu-daegan mountain ranges, the "spine" of the Korean Peninsula incorporating the Sobaek mountain range and most of the Taebaek mountain range. There are seven major Buddhist temples on Jirisan. Hwaeomsa is the largest and best-known temple among these. It contains several national treasures, mostly stone artworks from about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Ash
Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, produced during volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to refer to all explosive eruption products (correctly referred to as '' tephra''), including particles larger than 2 mm. Volcanic ash is formed during explosive volcanic eruptions when dissolved gases in magma expand and escape violently into the atmosphere. The force of the gases shatters the magma and propels it into the atmosphere where it solidifies into fragments of volcanic rock and glass. Ash is also produced when magma comes into contact with water during phreatomagmatic eruptions, causing the water to explosively flash to steam leading to shattering of magma. Once in the air, ash is transported by wind up to thousands of kilometres away. Due to its wide dispersal, ash can have a number of impacts on society, including animal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lapilli
Lapilli (: lapillus) is a size classification of tephra, which is material that falls out of the air during a volcanic eruption or during some meteorite impacts. ''Lapilli'' is Latin for "little stones". By definition lapilli range from in diameter. A pyroclastic particle greater than 64 mm in diameter is known as a volcanic bomb when molten, or a volcanic block when solid. Pyroclastic material with particles less than 2 mm in diameter is referred to as volcanic ash. Formation Lapilli are spheroid-, teardrop-, dumbbell- or button-shaped droplets of molten or semi-molten lava ejected from a volcanic eruption that fall to earth while still at least partially molten. These granules are the direct result of liquid rock cooling as it travels through the air. Lapilli tuffs are a very common form of volcanic rock typical of rhyolite, andesite and dacite pyroclastic eruptions, where thick layers of lapilli can be deposited during a basal surge eruption. Most lapilli tuf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage
Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess water. The internal drainage of most agricultural soils can prevent severe waterlogging (anaerobic conditions that harm root growth), but many soils need artificial drainage to improve production or to manage water supplies. History Early history The Indus Valley Civilization had sewerage and drainage systems. All houses in the major cities of Harappa and Mohenjo-daro had access to water and drainage facilities. Waste water was directed to covered gravity sewers, which lined the major streets. 18th and 19th century The invention of hollow-pipe drainage is credited to Sir Hugh Dalrymple, who died in 1753. Current practices Simple infrastructure such as open drains, pipes, and berms are still common. In modern times, more complex structures involving substantial earthworks and new technologies have been common as well. Geotextiles New storm water drainag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch (geology), epoch in the geologic time scale that extends from 5.33 to 2.58See the 2014 version of the ICS geologic time scale million years ago (Ma). It is the second and most recent epoch of the Neogene Period in the Cenozoic, Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the four most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian Stage, which lasted from 2.59 to 1.81 Ma, and is now included in the Pleistocene. As with other older geologic periods, the Stratum, geological strata that define the start and end are well-identified but the exact dates of the start a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New York Times
''The New York Times'' (''NYT'') is an American daily newspaper based in New York City. ''The New York Times'' covers domestic, national, and international news, and publishes opinion pieces, investigative reports, and reviews. As one of the longest-running newspapers in the United States, the ''Times'' serves as one of the country's Newspaper of record, newspapers of record. , ''The New York Times'' had 9.13 million total and 8.83 million online subscribers, both by significant margins the List of newspapers in the United States, highest numbers for any newspaper in the United States; the total also included 296,330 print subscribers, making the ''Times'' the second-largest newspaper by print circulation in the United States, following ''The Wall Street Journal'', also based in New York City. ''The New York Times'' is published by the New York Times Company; since 1896, the company has been chaired by the Ochs-Sulzberger family, whose current chairman and the paper's publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
