9. The
Composition and Origin of Igneous and Hydrothermal Veins in the Lower Ocean
Crust—ODP Hole 735B, Southwest Indian Ridge
ABSTRACT
INTRODUCTION
PETROGRAPHY AND MINERALOGY
Felsic
and Plagioclase Veins
Amphibole
Veins
Plagioclase
+ Amphibole Veins
Diopside
and Plagioclase + Diopside Veins
Smectite
± Prehnite ± Carbonate Veins
Zeolite
± Prehnite ± Carbonate Veins
Carbonate
Veins
Other
Veins
VEIN MINERALOGY
VEIN
GEOCHEMISTRY
TEMPERATURES
OF VEIN FORMATION
ORIGIN
OF HOLE 735B VEINS
DYNAMIC
MODEL FOR VEIN FORMATION
SUMMARY
AND CONCLUSIONS
ACKNOWLEDGMENTS
REFERENCES
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