1. Leg 193 Synthesis: Anatomy of an Active Felsic-Hosted Hydrothermal System, Eastern Manus Basin, Papua New Guinea
KEY OUTCOMES OF THE DRILLING LEG
VOLCANIC ARCHITECTURE OF PUAL RIDGE
SUBSEAFLOOR HYDROTHERMAL ALTERATION AND MINERALIZATION
Whole-Rock Geochemistry of Altered Rocks
Volume Changes during Alteration
Veins, Breccias, and Fractures
Semimassive Sulfide Mineralization
Temperatures of Hydrothermal Alteration and Vein Formation
One Hydrothermal Event or Many?
Significance of the Cristobalite and Quartz Domains
Fluid Chemistry Controls on Alteration Styles
Relationships of Alteration to Mineralization
Importance of Dilation within the PACMANUS Hydrothermal System
FLUID SOURCES AND SUBSEAFLOOR HYDROTHERMAL FLUID FLOW