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Datun Volcano Group
Tatun Volcanoes (), a group of volcanoes located in northern Taiwan, is located 15 km north of Taipei, and lies to the west of Keelung. It just adjoins the northern coast of the Taiwan island. The volcano group was a result of episodic volcanism between 2.8 and 0.2 Ma. As of 2005, some geothermal activity was occurring and gas fumaroles were active among these volcanoes. Observations on Tatun Volcano Group suggest that magma chambers probably still exist under the land surface of northern Taiwan. History The north of the island is where evidence of volcanic activity is most obvious. In the early 20th century, the North Range of hills, also called ''Daitonzan'' from Japanese or ''Twa-tun'' from Hokkien, was recognized as having an abundance of sulfur deposits. There were three craters in the North Range between Tamsui and Kimpauli (approx. modern-day Jinshan). The North hill crater, over in diameter and about deep, was the most extensive and was sometimes filled with water. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qixing Mountain (Taipei)
Qixing Mountain, also spelled Cising Mountain or Chihsing Mountain, () is a mountain in Beitou District, Taipei, Taiwan. It is located on the Datun Volcano Group and is the highest mountain in the city, at the rim of Taipei Basin. It is also the highest (dormant) volcano in Taiwan. It is located in the center of Yangmingshan National Park; its main peak is above sea level. It began erupting about 700,000 years ago. There was a crater at the peak but it became seven small peaks due to post-eruption erosion. The mountain has faults running across the southeast and northwest contours, and has volcanic landforms such as hot springs and fumaroles. Shamao Mountain is a round volcanic dome that looks like a black gauze cap. As the lava was more viscous when the mountain was formed, it gradually became a tholoid, also known as a cumulo-dome volcano, it is above sea level. Shamaoshan and Cigushan (七股山, ) are parasitic volcanoes of Qixingshan. This mountain is the source of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Group
A volcanic group is a stratigraphic group consisting of volcanic strata. They can be in the form of volcanic fields, volcanic complexes and cone A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex. A cone is formed by a set of line segments, half-lines, or lines con ... clusters. Notable volcanic groups See also * * * * * * * References {{reflist Volcanic landforms Volcanoes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. The territories controlled by the ROC consist of 168 islands, with a combined area of . The main island of Taiwan, also known as ''Formosa'', has an area of , with mountain ranges dominating the eastern two-thirds and plains in the western third, where its highly urbanised population is concentrated. The capital, Taipei, forms along with New Taipei City and Keelung the largest metropolitan area of Taiwan. Other major cities include Taoyuan, Taichung, Tainan, and Kaohsiung. With around 23.9 million inhabitants, Taiwan is among the most densely populated countries in the world. Taiwan has been settled for at least 25,000 years. Ancestors of Taiwanese indigenous peoples settled the isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taipei
Taipei (), officially Taipei City, is the capital and a special municipality of the Republic of China (Taiwan). Located in Northern Taiwan, Taipei City is an enclave of the municipality of New Taipei City that sits about southwest of the northern port city of Keelung. Most of the city rests on the Taipei Basin, an ancient lakebed. The basin is bounded by the relatively narrow valleys of the Keelung and Xindian rivers, which join to form the Tamsui River along the city's western border. The city of Taipei is home to an estimated population of 2,646,204 (2019), forming the core part of the Taipei–Keelung metropolitan area, which includes the nearby cities of New Taipei and Keelung with a population of 7,047,559, the 40th most-populous urban area in the world—roughly one-third of Taiwanese citizens live in the metro district. The name "Taipei" can refer either to the whole metropolitan area or just the city itself. Taipei has been the seat of the ROC central government ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keelung
Keelung () or Jilong () (; Hokkien POJ: '), officially known as Keelung City, is a major port city situated in the northeastern part of Taiwan. The city is a part of the Taipei–Keelung metropolitan area, along with its neighbors, New Taipei City and Taipei, respectively. Nicknamed the ''Rainy Port'' for its frequent rain and maritime role, the city is Taiwan's second largest seaport (after Kaohsiung). The city was founded by the Spanish Empire in 1626, then called La Santisima Trinidad. Name According to early Chinese accounts, this northern coastal area was originally called ''Pak-kang'' (). By the early 20th century, the city was known to the Western world as Kelung, as well as the variants ''Kiloung'', ''Kilang'' and ''Keelung''. In his 1903 general history of Taiwan, US Consul to Formosa (1898–1904) James W. Davidson related that "Kelung" was among the few well-known names, thus warranting no alternate Japanese romanization. However, the Taiwanese people have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanism
Volcanism, vulcanism or volcanicity is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics, and volcanic gases erupt through a break in the surface called a vent. It includes all phenomena resulting from and causing magma within the crust or mantle of the body, to rise through the crust and form volcanic rocks on the surface. Magmas, that reach the surface and solidify, form extrusive landforms. Volcanic processes Magma from the mantle or lower crust rises through the crust towards the surface. If magma reaches the surface, its behavior depends on the viscosity of the molten constituent rock. Viscous (thick) magma produces volcanoes characterised by explosive eruptions, while non-viscous (runny) magma produce volcanoes characterised by effusive eruptions pouring large amounts of lava onto the surface. In some cases, rising magma can cool and solidify without reaching the surface. Inste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mya (unit)
Mya may refer to: Brands and product names * Mya (program), an intelligent personal assistant created by Motorola * Mya (TV channel), an Italian Television channel * Midwest Young Artists, a comprehensive youth music program Codes * Burmese language, ISO 639-3 code is * Moruya Airport's IATA code * The IOC, license plate, and UNDP country code for Myanmar ("MYA") People * Mya (given name) * Mya (singer) (Mya Marie Harrison, born 1979), an American R&B singer-songwriter and actress * Bo Mya (1927–2006), nom de guerre of a Myanmar rebel leader, chief rapist of the Karen National Union Other uses * ''Mýa'' (album), a 1998 album by Mýa * ''Mya'' (bivalve), a genus of soft-shell clams * MYA (unit) for "million years ago", a science-related unit of time used in astronomy, geology and biology See also * A (motor yacht) (M/Y A), a superyacht * Maia (other) * Maya (other) Maya may refer to: Civilizations * Maya peoples, of southern Mexico and norther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuo-Fong Ma
Kuo-Fong Ma (, 1963 ) is a Taiwanese seismologist. She is primarily known for research conducted on the Chelungpu Fault, the cause of one of the most devastating earthquakes in Taiwan, the 1999 Jiji earthquake. Career Ma was born in 1963 at Su'ao, Taiwan. She graduated from National Central University in 1985 and received her master's degree in 1987 from the Institute of Oceanography at National Taiwan University. In 1993, she earned a PhD degree from the Division of Geological and Planetary Sciences at Caltech. She is currently the Chief Scientist of the Taiwan Earthquake Research Center, a Distinguished Research Fellow at the Institute of Earth Sciences, Academia Sinica, a professor in the Earth Sciences Department of National Central University, and the founder and Director of the Earthquake- Disaster & Risk Evaluation and Risk Management (E-DREaM) Center. She is also a member of the Global Earthquake Model. Ma was one of the Ten Outstanding Young Women of Republic of Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fumarole
A fumarole (or fumerole) is a vent in the surface of the Earth or other rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcanic activity, but fumarole activity can also precede a volcanic eruption and has been used for eruption prediction. Most fumaroles die down within a few days or weeks of the end of an eruption, but a few are persistent, lasting for decades or longer. An area containing fumaroles is known as a fumarole field. The predominant vapor emitted by fumaroles is steam, formed by the circulation of groundwater through heated rock. This is typically accompanied by volcanic gases given off by magma cooling deep below the surface. These volcanic gases include sulfur compounds, such as various sulfur oxides and hydrogen sulfide, and sometimes hydrogen chloride, hydrogen fluoride, and other gases. A fumarole that emits significant sulfur compounds is some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magma Chamber
A magma chamber is a large pool of liquid rock beneath the surface of the Earth. The molten rock, or magma, in such a chamber is less dense than the surrounding country rock, which produces buoyant forces on the magma that tend to drive it upwards. If the magma finds a path to the surface, then the result will be a volcanic eruption; consequently, many volcanoes are situated over magma chambers. These chambers are hard to detect deep within the Earth, and therefore most of those known are close to the surface, commonly between 1 km and 10 km down. Dynamics of magma chambers Magma rises through cracks from beneath and across the crust because it is less dense than the surrounding rock. When the magma cannot find a path upwards it pools into a magma chamber. These chambers are commonly built up over time, by successive horizontal or vertical magma injections. Influx of new magma causes reaction of pre-existing crystals and the pressure in the chamber to increase. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamsui
Tamsui District (Hokkien POJ: ''Tām-chúi''; Hokkien Tâi-lô: ''Tām-tsuí''; Mandarin Pinyin: ''Dànshuǐ'') is a seaside district in New Taipei, Taiwan. It is named after the Tamsui River; the name means "fresh water". The town is popular as a site for viewing the sun setting into the Taiwan Strait. Though modest in size (population 184,192), it has a large role in Taiwanese culture. Name Historical Originally settled by the Ketagalan aborigines, the location was called ''Hoba'', meaning "stream's mouth". ''Hoba'' was loaned into Taiwanese Hokkien as ''Hobe''. Historical works in English have referred to the place as "Hobe", "Hobé", or "Hobe Village". The Spanish arrived in the 17th century and called this place ''Casidor'' and the Tamsui River ''Kimalon''. Dutch records have used the placenames ''Tamsuy'' and ''Tampsui'' to refer to this area but have also referred to another " Lower Tamsuy" in the south of the island. In his 1903 book ''The Island of Formosa'', forme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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