subduction
61MARGES CONTINENTALES — Les marges continentales sont situées en bordure des continents, à la frontière du domaine océanique (fig. 1). Pour en comprendre l’origine et l’évolution géologique, un rappel des données de base de la tectonique des plaques et de la physique du …
62Plate tectonics — The tectonic plates of the world were mapped in the second half of the 20th century …
63Mount Cayley volcanic field — Coordinates: 50°07′13″N 123°17′26″W / 50.12028°N 123.29056°W / 50.12028; 123.29056 …
64ALPINES (CHAÎNES) — On appelle chaînes alpines les chaînes de montagnes formées pendant le cycle orogénique alpin, qui s’étend sur l’ensemble des ères secondaire et tertiaire, pendant les derniers 245 millions d’années de l’histoire du globe terrestre. Le cycle… …
65Geology of the Pacific Northwest — The geology of the Pacific Northwest refers to the study of the composition (including rock, minerals, and soils), structure, physical properties and the processes that shape the Pacific Northwest region of the United States and Canada. The… …
66Nankai Trough — The Nankai Trough 南海トラフ (Nankai Torafu?) is a submarine trough located south of Japan s island of Honshū, extending approximately 900 km offshore. In plate tectonics, the Nankai Trough marks a subduction zone that is caused by subduction of… …
67Ordovician Period — Interval of geologic time, 490–443 million years ago, the second oldest period of the Paleozoic Era. It follows the Cambrian and precedes the Silurian. During the Ordovician, many of the landmasses were aligned in the tropics. Life was dominated… …
68TECTONIQUE — La tectonique (du grec tektôn , «constructeur») est la discipline des sciences de la Terre qui est consacrée à l’étude des structures acquises par les roches postérieurement à leur formation, donc indépendamment de celle ci; science des… …
69Cascade Volcanoes — Geobox|Range name=Cascade Volcanoes other name= image size=280 image caption=Mount Hood reflected in Trillium Lake country=United States country1=Canada region type = Provinces/States region= Oregon region1= Washington region2= California region3 …
70Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …
