1. Leg 183 Synthesis: Kerguelen Plateau-Broken Ridge—A Large Igneous Province

ABSTRACT

INTRODUCTION

SCIENTIFIC OBJECTIVES

CHRONOLOGY OF KERGUELEN PLATEAU AND BROKEN RIDGE MAGMATISM AND TECTONISM: IMPLICATIONS FOR THE PLUME HYPOTHESIS AND THE BREAKUP OF GONDWANA

PETROGENESIS OF BASEMENT IGNEOUS ROCKS

MANTLE SOURCES, PLUME-LITHOSPHERE INTERACTIONS, AND PLUME MODELS

ERUPTION ENVIRONMENT AND IMPACT

Subsidence of the Kerguelen Plateau

Explosive Felsic Volcanism

Environmental Effects of Submarine Hydrothermal Activity

Subaerial Lava Flow Emplacement Mechanisms and Alteration

PALEOENVIRONMENTS AND PALEOCEANOGRAPHY

PALEOMAGNETISM AND ROCK MAGNETISM

SUMMARY

ACKNOWLEDGMENTS

REFERENCES

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