Stratigraphic and Petrological Insights into the Late Jurassic– Early Cretaceous Tectonic Framework of the Northwest Pacific Margin

Takashima, Reishi; Nishi, Hiroshi; Yoshida, Takeyoshi

doi:10.5772/intechopen.68289

Dynamics of Arc Migration and Amalgamation - Architectural Examples From the NW Pacific Margin 2017

DOI: 10.5772/intechopen.68289

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Stratigraphic and Petrological Insights into the Late Jurassic– Early Cretaceous Tectonic Framework of the Northwest Pacific Margin

Reishi Takashima¹,

Hiroshi Nishi²,

Takeyoshi Yoshida³

Abstract: Late Jurassic-Early Cretaceous volcano-sedimentary sequences in the Sorachi, Kumaneshiri, and Yezo groups are exposed in central Hokkaido

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2024

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Reconstruction of the Cretaceous continental arc–trench system of the Japanese Islands: a basis for Cretaceous palaeoenvironmental studies

Ando,

Takahashi

2024

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Spatiotemporal distributions of Cretaceous rocks differs markedly between the Southwest (SW) and Northeast (NE) Japan arcs. However, four parallel zonal arrangements of rocks are recognized broadly throughout both arcs: mostly non-marine sedimentary rocks in backarc/intra-arc basins; granitic and volcanic rocks in magmatic arcs; predominantly marine and subordinately fluvial sedimentary rocks in forearc basins; and sedimentary rocks of turbiditic and mélange facies in accretionary complexes. These zones constituted a palaeo-Japan continental arc-trench system during the Cretaceous. We describe and correlate 71 Cretaceous backarc/intra-arc and forearc basinal successions from Kyushu (south) to Hokkaido (north) islands, including a southern Sakhalin and two Kuril Arc (eastern Hokkaido) successions. Stratigraphic ranges and major sedimentary facies are generally similar between the SW and NE Japan arcs, except for the pre-Aptian Lower Cretaceous in Hokkaido of NE Japan, suggesting continuity throughout the two arcs during the Cretaceous. Although Cretaceous strata are sporadically exposed in northern Honshu, NE Japan, interpretation of seismic sections suggests that Cretaceous forearc sedimentary rock measuring several tens of kilometres laterally are developed offshore beneath the present Pacific forearc. In contrast, Cretaceous forearc strata in southern SW Japan are distributed along two narrow belts that may have been deformed by post-Early Miocene tectonism.

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Reconstruction of the Cretaceous continental arc–trench system of the Japanese Islands: a basis for Cretaceous palaeoenvironmental studies

Ando,

Takahashi

2024

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Stratigraphic and Petrological Insights into the Late Jurassic– Early Cretaceous Tectonic Framework of the Northwest Pacific Margin

Abstract: Late Jurassic-Early Cretaceous volcano-sedimentary sequences in the Sorachi, Kumaneshiri, and Yezo groups are exposed in central Hokkaido

Cited by 1 publication

References 32 publications

Reconstruction of the Cretaceous continental arc–trench system of the Japanese Islands: a basis for Cretaceous palaeoenvironmental studies

Reconstruction of the Cretaceous continental arc–trench system of the Japanese Islands: a basis for Cretaceous palaeoenvironmental studies

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