2.9B Accretion and Orogeny: Definition of Orogenesis: Western Pacific to Alaska
Channel: Snow Mountain
Date: 2020-08-12

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2.9B Accretion and Orogeny: Definition of Orogenesis: Western Pacific to Alaska

Orogenesis includes the processes that collectively result in the formation of mountains. Some mountain belts develop as a result of the collision and merger of an island arc, or some other small crustal fragment, to a continental block. The process of collision and accretion  (joining together) of comparatively small crustal fragments to a continental margin has generated many of the mountainous regions rimming the Pacific.

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