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- Der Izu-Bonin-Marianen-Inselbogen (IBM) ist ein Komplex aus mehreren einzelnen in Nord-Süd-Richtung verlaufenden Inselbögen und Backarc-Becken im West-Pazifik. Die entsprechende Subduktionszone erstreckt sich über rund 2800 km von der japanischen Hauptinsel Honshu im Norden bis südlich über Guam hinaus. In dieser Subduktionszone taucht der geologisch älteste Teil der Pazifischen Platte steil nach Westen unter die Philippinische Platte ab. Die über die Meeresoberfläche hinausragenden Teile des Inselbogen-Komplexes bilden die folgenden namensgebenden vulkanischen Inselketten (von Norden nach Süden):
* Izu-Inseln
* Bonininseln
* Marianen Östlich entlang des Inselbogen-Komplexes verlaufen mit dem Boningraben und dem Marianengraben Tiefseerinnen, in denen die weltweit größten Meerestiefen gemessen wurden (siehe u. a. Challengertief). (de)
- The Izu–Bonin–Mariana (IBM) arc system is a tectonic plate convergent boundary in Micronesia. The IBM arc system extends over 2800 km south from Tokyo, Japan, to beyond Guam, and includes the Izu Islands, the Bonin Islands, and the Mariana Islands; much more of the IBM arc system is submerged below sealevel. The IBM arc system lies along the eastern margin of the Philippine Sea Plate in the Western Pacific Ocean. It is the site of the deepest gash in Earth's solid surface, the Challenger Deep in the Mariana Trench. The IBM arc system formed as a result of subduction of the western Pacific plate. The IBM arc system now subducts mid-Jurassic to Early Cretaceous lithosphere, with younger lithosphere in the north and older lithosphere in the south, including the oldest (~170 million years old, or Ma) oceanic crust. Subduction rates vary from ~2 cm (1 inch) per year in the south to 6 cm (~2.5 inches) in the north. The volcanic islands that comprise these island arcs are thought to have been formed from the release of volatiles (steam from trapped water, and other gases) being released from the subducted plate, as it reached sufficient depth for the temperature to cause release of these materials. The associated trenches are formed as the oldest (most western) part of the Pacific plate crust increases in density with age, and because of this process finally reaches its lowest point just as it subducts under the crust to the west of it. The IBM arc system is an excellent example of an intra-oceanic convergent margin (IOCM). IOCMs are built on oceanic crust and contrast fundamentally with island arcs built on continental crust, such as Japan or the Andes. Because IOCM crust is thinner, denser, and more refractory than that beneath Andean-type margins, study of IOCM melts and fluids allows more confident assessment of mantle-to-crust fluxes and processes than is possible for Andean-type convergent margins. Because IOCMs are far removed from continents they are not affected by the large volume of alluvial and glacial sediments. The consequent thin sedimentary cover makes it much easier to study arc infrastructure and determine the mass and composition of subducted sediments. Active hydrothermal systems found on the submarine parts of IOCMs give us a chance to study how many of earth's important ore deposits formed. (en)
- El arco de Izu-Bonin-Mariana (abreviado IBM) es un arco insular resultante de un borde convergente de placas tectónicas, en Micronesia. (es)
- L'arco delle Izu–Bonin–Marianne (nella letteratura scientifica inglese abbreviato in IBM, acronimo di Izu–Bonin–Mariana) è un arco insulare risultante da un margine convergente di placche tettoniche. (it)
- 伊豆・小笠原・マリアナ島弧(いずおがさわらマリアナとうこ、英: Izu-Bonin-Mariana (IBM) Arc)はフィリピン海と太平洋(狭義)の境界をなす島弧を指す。伊豆半島、伊豆大島からヤップ島まで2800km以上に及ぶ。太平洋プレートがフィリピン海プレートの下へ潜る沈み込み帯に伴うもので、このような島弧としては世界的にも大規模なものである。火山活動も活発で火山島が多い。 島としては次の諸島を含む。
* 伊豆諸島
* 小笠原諸島(南鳥島、沖ノ鳥島を除く)
* マリアナ諸島
* ヤップ島 火山島は下記の火山列に分けられる。
* 伊豆諸島
* 火山列島(硫黄列島)
* マリアナ諸島 東方沖には上述の沈み込み帯として伊豆・小笠原海溝、マリアナ海溝およびヤップ海溝がある。伊豆・小笠原海溝とマリアナ海溝は小笠原諸島東方の母島海山で分けられる。また、マリアナ諸島西側には背弧海盆としてが発達している。 (ja)
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- 48938 (xsd:nonNegativeInteger)
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- January 2020 (en)
- July 2022 (en)
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- El arco de Izu-Bonin-Mariana (abreviado IBM) es un arco insular resultante de un borde convergente de placas tectónicas, en Micronesia. (es)
- L'arco delle Izu–Bonin–Marianne (nella letteratura scientifica inglese abbreviato in IBM, acronimo di Izu–Bonin–Mariana) è un arco insulare risultante da un margine convergente di placche tettoniche. (it)
- 伊豆・小笠原・マリアナ島弧(いずおがさわらマリアナとうこ、英: Izu-Bonin-Mariana (IBM) Arc)はフィリピン海と太平洋(狭義)の境界をなす島弧を指す。伊豆半島、伊豆大島からヤップ島まで2800km以上に及ぶ。太平洋プレートがフィリピン海プレートの下へ潜る沈み込み帯に伴うもので、このような島弧としては世界的にも大規模なものである。火山活動も活発で火山島が多い。 島としては次の諸島を含む。
* 伊豆諸島
* 小笠原諸島(南鳥島、沖ノ鳥島を除く)
* マリアナ諸島
* ヤップ島 火山島は下記の火山列に分けられる。
* 伊豆諸島
* 火山列島(硫黄列島)
* マリアナ諸島 東方沖には上述の沈み込み帯として伊豆・小笠原海溝、マリアナ海溝およびヤップ海溝がある。伊豆・小笠原海溝とマリアナ海溝は小笠原諸島東方の母島海山で分けられる。また、マリアナ諸島西側には背弧海盆としてが発達している。 (ja)
- Der Izu-Bonin-Marianen-Inselbogen (IBM) ist ein Komplex aus mehreren einzelnen in Nord-Süd-Richtung verlaufenden Inselbögen und Backarc-Becken im West-Pazifik. Die entsprechende Subduktionszone erstreckt sich über rund 2800 km von der japanischen Hauptinsel Honshu im Norden bis südlich über Guam hinaus. In dieser Subduktionszone taucht der geologisch älteste Teil der Pazifischen Platte steil nach Westen unter die Philippinische Platte ab.
* Izu-Inseln
* Bonininseln
* Marianen (de)
- The Izu–Bonin–Mariana (IBM) arc system is a tectonic plate convergent boundary in Micronesia. The IBM arc system extends over 2800 km south from Tokyo, Japan, to beyond Guam, and includes the Izu Islands, the Bonin Islands, and the Mariana Islands; much more of the IBM arc system is submerged below sealevel. The IBM arc system lies along the eastern margin of the Philippine Sea Plate in the Western Pacific Ocean. It is the site of the deepest gash in Earth's solid surface, the Challenger Deep in the Mariana Trench. (en)
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- Izu–Bonin–Mariana Arc (en)
- Izu-Bonin-Marianen-Inselbogen (de)
- Arco de Izu-Bonin-Mariana (es)
- Arco delle Izu-Bonin-Marianne (it)
- 伊豆・小笠原・マリアナ島弧 (ja)
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