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Geological evolution of Japan: an overview

By
A. Taira
A. Taira
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Y. Ohara
Y. Ohara
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S. R. Wallis
S. R. Wallis
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A. Ishiwatari
A. Ishiwatari
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Y. Iryu
Y. Iryu
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Published:
January 01, 2016

Abstract

In this chapter we present an overview of the geology of the Japanese archipelago and the surrounding ocean basins. To set the scene we begin by examining the main geological features of the present-day Japanese arc system. We then move back in time to the oldest rocks known in Japan and show how these origins have developed into the modern island arc. The early geological history of Japan is represented by Palaeozoic rocks, which were derived from both continental and oceanic domains. It is unclear if this early continental margin was passive or the site of plate convergence. After the Jurassic the geological record preserves abundant evidence for oceanic plate subduction beneath Japan. This convergence has continued until the present with numerous plates interacting with and leaving their mark on the geology of Japan. At c. 25 Ma the Japan Sea began to open causing the separation of Japan from the East Asia margin to form the present island arc.

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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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