1. Leg 193 Synthesis: Anatomy of an Active Felsic-Hosted Hydrothermal System, Eastern Manus Basin, Papua New Guinea

ABSTRACT

INTRODUCTION

SCIENTIFIC OBJECTIVES

GEOLOGICAL SETTING

 KEY OUTCOMES OF THE DRILLING LEG

 VOLCANIC ARCHITECTURE OF PUAL RIDGE

 SUBSEAFLOOR HYDROTHERMAL ALTERATION AND MINERALIZATION

 FLUID SOURCES AND SUBSEAFLOOR HYDROTHERMAL FLUID FLOW

Porosity, Permeability, Fracturing, and Fluid Flow

Strontium and Sulfur Isotope Ratios in Anhydrite

Sulfur Isotope Ratios in Pyrite

Fluid Flow Models

Source of Chimney Metals: The Role of Magmatic Volatiles

DEEP BIOSPHERE AND BIOMINERALIZATION

SUMMARY

ACKNOWLEDGMENTS

REFERENCES

 APPENDIX

CHAPTER NOTE

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