Table of Contents

1 Chemical Properties and Isotope Systematics.- 2 The Origin of Volcanic Rocks in the Oceans.- 3 Subduction Zones in the Oceans.- 4 The Compressive Margin of the American Continents.- 5 Continental Flood Basalt Provinces.- 6 Alkalic Igneous Rocks on the Continents.- 7 Differentiated Gabbro Intrusives.- 8 Archean Greenstone Belts and Granitic Gneisses of North America.- References.- Author Index.- Index of Geographic and Geologic Names.- Geologic Time Scale.