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Pre-Cretaceous accretionary complexes

By
Satoru Kojima
Satoru Kojima
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Yasutaka Hayasaka
Yasutaka Hayasaka
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Yoshikuni Hiroi
Yoshikuni Hiroi
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Atsushi Matsuoka
Atsushi Matsuoka
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Hiroyoshi Sano
Hiroyoshi Sano
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Yoshiaki Sugamori
Yoshiaki Sugamori
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Noritoshi Suzuki
Noritoshi Suzuki
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Shizuo Takemura
Shizuo Takemura
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Noritoshi Suzuki
Noritoshi Suzuki
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Tatsuki Tsujimori
Tatsuki Tsujimori
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Takayuki Uchino
Takayuki Uchino
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Published:
January 01, 2016

Abstract

Accretionary complexes (AC) form at convergent plate margins by the subduction of oceanic plate underneath the continental plate (Fig. 2b.1). The oceanic plate is created at the mid-oceanic ridge, and moves to the trench while accumulating pelagic sediments. After arriving at the trench, where the pelagic sediments are covered by continent-derived clastic materials, the plate is subducted and part of the sediments accrete to the continental plate, producing fault stacking and several types of mèlanges (Fig. 2b.1). The characteristic AC succession re?ects the ocean plate stratigraphy (OPS) (Matsuda & Isozaki 1991) starting with basaltic basement covered by radiolarian ribbon chert, then siliceous mudstone and ?nally coarse clastic rocks.

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Geological Society, London, Geology of Series

The Geology of Japan

Teresa Moreno
Teresa Moreno
Institute of Environmental Assessment and Water Research (IDæA), Spanish National Research Council (CSIC), Barcelona, Spain
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Simon Wallis
Simon Wallis
Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University, Japan
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Tomoko Kojima
Tomoko Kojima
Department of Earth and Environmental Sciences, Graduate School of Science and Technology, Kumamoto University, Japan
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Wes Gibbons
Wes Gibbons
WPS, 08870 Sitges, Barcelona, Spain
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Geological Society of London
ISBN electronic:
9781862397064
Publication date:
January 01, 2016

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