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Title: On the origin of the North Pacific arcs
Author: Gelabert Ferrer, Bernadí
Sàbat i Montserrat, Francesc
Rodríguez-Perea, Antonio
Fornós, Joan J. (Joan Josep)
Keywords: Geologia marina
Arcs d'illes
Tectònica de plaques
Pacífic (Oceà : nord)
Submarine geology
Island arcs
Plate tectonics
North Pacific Ocean
Issue Date: 2004
Publisher: Universitat de Barcelona (UB). Institut de Ciències de la Terra Jaume Almera (ICTJA). Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDEA). Universitat Autonònoma de Barcelona (UAB). Consejo Superior de Investigaciones Científicas (CSIC)
Abstract: We present a new hypothesis that relates global plate tectonics to the formation of marginal basins, island arcs, spreading ridges and arc-shaped mountain belts around the North Pacific Ocean. According to our model, the ellipsoidal-shaped Paleogene basins of the South China Sea, Parece-Vela Basin, Shikoku Basin, Sea of Japan and the Sea of Okhotsk in addition to those of the North American Cordillera can be attributed to the change in plate convergence direction at 42 Ma between the Indoaustralian and Eurasian plates. The new direction of convergence was parallel to the eastern continental margin of Asia and resulted in widespread extension perpendicular to this margin and to the western margin of North America. Both margins form part of a circle parallel to the Indoaustralian-Eurasian direction of convergence.
Note: Reproducció del document publicat a
It is part of: Geologica Acta, 2004, vol. 2, núm. 3, p. 203-212
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ISSN: 1695-6133
Appears in Collections:Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)

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