viii, 428 p., ]32[ p. of plates : illus )some col.(, maps
GENERAL NOTES
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Includes bibliographical references and index
NOTES PERTAINING TO TITLE AND STATEMENT OF RESPONSIBILITY
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Robin Gill
ORIGINAL VERSION NOTE
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1
CONTENTS NOTE
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An introduction to magmas and magmatic rocks -- Basalts and related rocks -- Magma differentiation -- Gabbroic rocks -- Ultramafic and ultrabasic rocks -- Andesites, dacites and rhyolites -- How magmas erupt--an introduction to pyroclastic processes and products -- Granitic rocks -- Alkali rocks