Orogenic Processes Research Group

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The Orogenic Processes Research Group

Outline of the Orogenic Processes Research Group

Research Themes

The Orogenic Processes Research Group conducts geological studies on metamorphic, plutonic, volcanic, and sedimentary rocks, aiming to understand the long-term evolution of island-arc crust. Our research focuses on:

Deformation and metamorphic processes along subduction‑zone plate boundaries

Magmatic and metamorphic processes in the middle to deep arc crust

Geological development of sedimentary basins and volcanic histories in the shallow crust and surface environments

Development of analytical and observational techniques for crustal-rock studies

Key Project: Land Geological Map Project

As one of the core groups of the Land Geological Map Project, we produce and compile 1:50,000 and 1:200,000 geological maps of Japan.

1:50,000 Geological Maps

These maps are based on original field surveys and research, representing regional geological histories through geological maps and cross sections. Each map is accompanied by a detailed explanatory booklet.

1:200,000 Geological Maps

These maps are compiled mainly from existing datasets, supplemented with new fieldwork and research. They provide regional to nationwide syntheses of Japan’s geology and are periodically updated to incorporate advances in geological research.

Members

Position / Name	Research Field	Links
Group Leader KUDO Takashi	Stratigraphy, Volcanology
Chief Senior Researcher YAMASAKI Toru	Igneous Petrology, Geochemistry
Senior Researcher SATO Daisuke	Igneous Petrology
Senior Researcher NAKAMURA Yoshihiro	Structural Geology, Metamorphic Petrology
Senior Researcher HAJI Toshiki	Stratigraphy, Structural Geology	→Personal Page
Researcher YAMAOKA Ken	Metamorphic, Igneous Petrology
Researcher USHIMARU Kentaro	Stratigraphy, Structural Geology