Tectonic evolution of the Paleo-Median Tectonic Line and the Kurosegawa tectonic zone inferred from zircon U-Pb geochronology

概要

学位論文要約
Tectonic evolution of the Paleo-Median Tectonic Line and the Kurosegawa tectonic zone
inferred from zircon U-Pb geochronology
（ジルコン U-Pb 年代学に基づく古中央構造線と黒瀬川構造帯の形成テクトニクス）

川口 健太
Department of Earth and Planetary Systems Science,
Graduate School of Science,
Hiroshima University

Content of the thesis
Abstract
Chapter 1 Introduction
Chapter 2 Discovery of the Early Paleozoic granitoid at the northern margin of
Sambagawa terrane, eastern Kyushu, Japan: Petrogenesis, U-Pb
geochronology and its tectonic implication
Chapter 3 Zircon U-Pb geochronology of the “Sashu Complex”, eastern Kyushu:
Eastern extension of the Higo plutono-metamorphic complex
Chapter 4 Zircon U-Pb geochronology of the metagabbro in the Sambagawa
metamorphic rocks, western Shikoku: Implication towards the
reconstruction of the Paleo-Median Tectonic Line
Chapter 5 Tectonic evolution of the Maana belt western Shikoku: Implication
towards the tectonic relationship between Kurosegawa tectonic zone
and the Higo plutono-metamorphic complex
Chapter 6 Geochronological study of the Karasaki mylonite, western Shikoku: as
an eastern extension of the Higo plutono-metamorphic complex
Chapter 7 Overall conclusions
Acknowledgements
References