| dbo:abstract |
The Aleutian Arc is a large volcanic arc in the U.S. state of Alaska. It consists of a number of active and dormant volcanoes that have formed as a result of subduction along the Aleutian Trench. Although taking its name from the Aleutian Islands, this term is a geologic grouping rather than a geographic one, and the Aleutian Arc extends through the Alaska Peninsula following the Aleutian Range to the Aleutian Islands. The Aleutian Arc reflects subduction of the Pacific Plate beneath the North American Plate. It extends 3,000 km (1,900 mi) from the Kamchatka Peninsula in the west to the Gulf of Alaska in the east. Unimak Pass at the southwestern end of the Alaska Peninsula marks the eastward transition from an intra-oceanic in the west to a continental arc in the east. Due to the arcuate geometry of the trench, the relative velocity vector changes from almost trench-normal in the Gulf of Alaska to almost trench-parallel in the west. Along the oceanic part of the subduction zone, convergence varies from 6.3 cm (2.5 in) per year to the north-northwest in the east to 7.4 cm (2.9 in) per year towards the northwest in the west. (en) El Arco Aleutiano es un gran arco volcánico en el estado de Alaska de EE.UU. Consiste en una serie de volcanes activos e inactivos que se han formado como resultado de la subducción a lo largo de la fosa de las Aleutianas. Aunque toma su nombre de las Islas Aleutianas, este término es una agrupación geológica más que geográfica, y el Arco Aleutiano se extiende a través de la Península de Alaska siguiendo la Cordillera Aleutiana y las Islas Aleutianas. El Arco Aleutiano refleja la subducción de la Placa del Pacífico debajo de la Placa Norteamericana. Se extiende a 3.000 km desde la península de Kamchatka en el oeste hasta el Golfo de Alaska en el este. El paso Unimak en el extremo sudoeste de la península de Alaska marca la transición hacia el este de un arco intraoceánico en el oeste a un arco continental en el este. Debido a la geometría arqueada de la zanja, el vector de velocidad relativa cambia de casi una trinchera normal en el Golfo de Alaska a casi trinchera-paralelo en el oeste. A lo largo de la parte oceánica de la zona de subducción, la convergencia varía de 6,3 cm por año al norte-noroeste en el este a 7,4 cm por año hacia el noroeste en el oeste. (es) L’Arc des Aléoutiennes est un arc volcanique représenté par les îles Aléoutiennes, en Alaska. Il se compose d'un certain nombre de volcans actifs et dormants qui se sont formés à la suite de la subduction le long de la fosse des Aléoutiennes. Bien qu'il tire son nom des îles Aléoutiennes, ce terme est un regroupement géologique plutôt que géographique, et l'Arc des Aléoutiennes s'étend à travers la péninsule de l'Alaska en suivant la chaîne aléoutienne jusqu'aux îles Aléoutiennes. (fr) Алеутська острівна дуга або Алеутсько-Командорська острівна дуга (англ. Aleutian Island Arc) — вулканічна дуга. Складається з низки активних і сплячих вулканів, які сформувалися в результаті субдукції вздовж Алеутської западини. Алеутська дуга віддзеркалює субдукцію Тихоокеанської плити під Північноамериканську. Простягається на 3000 км від півострова Камчатка на заході до затоки Аляска на сході, відокремлює Берингове море від Тихого океану. Протока у південно-західній частині півострова Аляска є переходом від внутрішньо-океанічної на заході до континентальної дуги на сході. Уздовж океанічної частини зони субдукції, конвергенція варіюється від 6,3 см/рік і напрямку NNW на сході до 7,4 см / рік на NW на заході (DeMets і Діксон 1999). (uk) 阿留申島弧是美國的火山弧，由阿拉斯加州負責管轄，從堪察加半島一直向東延伸3,000公里至阿拉斯加灣，該島弧因太平洋板塊沉入北美洲板塊而形成。 (zh) |
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L’Arc des Aléoutiennes est un arc volcanique représenté par les îles Aléoutiennes, en Alaska. Il se compose d'un certain nombre de volcans actifs et dormants qui se sont formés à la suite de la subduction le long de la fosse des Aléoutiennes. Bien qu'il tire son nom des îles Aléoutiennes, ce terme est un regroupement géologique plutôt que géographique, et l'Arc des Aléoutiennes s'étend à travers la péninsule de l'Alaska en suivant la chaîne aléoutienne jusqu'aux îles Aléoutiennes. (fr) 阿留申島弧是美國的火山弧，由阿拉斯加州負責管轄，從堪察加半島一直向東延伸3,000公里至阿拉斯加灣，該島弧因太平洋板塊沉入北美洲板塊而形成。 (zh) The Aleutian Arc is a large volcanic arc in the U.S. state of Alaska. It consists of a number of active and dormant volcanoes that have formed as a result of subduction along the Aleutian Trench. Although taking its name from the Aleutian Islands, this term is a geologic grouping rather than a geographic one, and the Aleutian Arc extends through the Alaska Peninsula following the Aleutian Range to the Aleutian Islands. (en) El Arco Aleutiano es un gran arco volcánico en el estado de Alaska de EE.UU. Consiste en una serie de volcanes activos e inactivos que se han formado como resultado de la subducción a lo largo de la fosa de las Aleutianas. Aunque toma su nombre de las Islas Aleutianas, este término es una agrupación geológica más que geográfica, y el Arco Aleutiano se extiende a través de la Península de Alaska siguiendo la Cordillera Aleutiana y las Islas Aleutianas. (es) Алеутська острівна дуга або Алеутсько-Командорська острівна дуга (англ. Aleutian Island Arc) — вулканічна дуга. Складається з низки активних і сплячих вулканів, які сформувалися в результаті субдукції вздовж Алеутської западини. (uk) |
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Aleutian Arc (en) Arco Aleutiano (es) Arc des Aléoutiennes (fr) 阿留申島弧 (zh) Алеутська острівна дуга (uk) |
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