Arc Volcano of Japan analyzes the origin of the Earth's continental crust. The text considers both tectonic and igneous processes, covering topics like sedimentary accretion, terrane accretion, and the separation of continental crust from the mantle.

This book presents an analysis of our current knowledge on the origin of the Earth's continental crust. There are two aspects to consider: tectonic and igneous processes. Tectonic aspects include sedimentary accretion, terrane accretion, and continental collision at continental margins, in association with plate subduction. These processes result in the formation of large mountain belts, the building up of which literally grows the continents. However, these tectonic aspects are concerned with material recycling within the crust, and hence do not contribute to volumetric growth of continental crust. Igneous processes concern separation of continental crust from the mantle and result in the volumetric growth of continental crust. Therefore, the main focus of this book is to systematically examine why and how the Earth's continental crust forms, by evaluating magmatic processes at island arcs where new continental crust forms.

Present the discovery of crystallization differentiation in an open-system chamber, repeatedly supplied with primitive magma from the mantle Describe island arc volcanic rocks which represent a range of magmas formed during the evolution of primitive basaltic magma Explain the growth not only of volcanic arc but also of outer arc, as well as the interrelationships between geophysical and geological configurations of island arcs Includes supplementary material: sn.pub/extras

Autorentext

Professor Emeritus at Kyushu University

Inhalt
Chapter 1 Continental Crust and Granitic Plutons.- Chapter 2 Chemical Composition of Continental Crust and the Primitive Mantle.- Chapter 3 Origin of Magmas of the Bowen's Series.- Chapter 4 Search for the Formation Mechanism of Continental Crust.- Chapter 5 Differentiation Mechanism of Magma at Arc Volcanoes.- Chapter 6 Configuration and Dynamics of the Magma Chambers Beneath Arc Volcanoes.- Chapter 7 Island Arc Volcanic Rocks and the Upper Continental Crust.- Chapter 8 Volcanic Arcs and Outer Arcs.