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Deformations of the northwestern Pacific plate

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Abstract

The style and age of deformations of the sedimentary cover and basaltic basement in the northwestern basin of the Pacific Ocean were studied based on seismic data coordinated with the results of deep-water drilling. The deformations are widespread not only on the oceanic slope of the trench as a plate boundary, but also within the plate especially close to the large Hokkaido, Tuscarora, and Seismikov fracture zones and the Hokkaido Swell. The most intense deformation took place at the Pliocene-Quaternary boundary. Abundant diapirs related to the plastic serpentinite layer at base of the crust indicate that gravity tectonics primarily develops here.

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Authors and Affiliations

  1. Institute of Marine Geology and Geophysics, Far East Branch, Russian Academy of Sciences, ul. Nauki 1B, Yuzhno-Sakhalinsk, Russia

    V. N. Patrikeev

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  1. V. N. Patrikeev
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Original Russian Text © V.N. Patrikeev, 2013, published in Geotektonika, 2013, No. 5, pp. 61–75.

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Patrikeev, V.N. Deformations of the northwestern Pacific plate. Geotecton. 47, 362–375 (2013). https://doi.org/10.1134/S001685211305004X

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  • DOI: https://doi.org/10.1134/S001685211305004X

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