Front Cover; Phosphorites on the Sea Floor: Origin, Composition and Distribution; Copyright Page; Foreword; Foreword to the English edition; CONTENTS; INTRODUCTION; Chapter 1. PRINCIPAL FEATURES OF THE MARINE GEOCHEMISTRY OF DISSEMINATED PHOSPHORUS; Chapter 2. PHOSPHORITE ON THE OCEAN SHELVES; Chapter 3. PHOSPHORITE ON SEAMOUNTS; Chapter 4. FACIES SETTING OF RECENT OCEANIC PHOSPHORITE FORMATION; Chapter 5. STAGES OF LATE QUATERNARY PHOSPHORITE FORMATION ON THE OCEAN SHELVES.