Upper photo: a high temperature vein stockwork at 261m in Hole 2 of magnetite with inter-vein pyrite, itself cut by fluorite and fluorite-carbonate veinlets, all hosted in an ultrabasic phonolite rock completely replaced by magnetite, biotite, fluorite and carbonate. Lower photo: polyphase quartz-carbonate vein at 602m in Hole 2 with open space and colloform-crustiform banding including fine pyrite and blood-red iron oxide; such veins are abundant in Hole 2 and are considered prospective for the concentration of gold in late, lower temperature fluids evident throughout the H-K hydrothermal system.
Upper photo: a high temperature vein stockwork at 261m in Hole 2 of magnetite with inter-vein pyrite, itself cut by fluorite and fluorite-carbonate veinlets, all hosted in an ultrabasic phonolite rock completely replaced by magnetite, biotite, fluorite and carbonate. Lower photo: polyphase quartz-carbonate vein at 602m in Hole 2 with open space and colloform-crustiform banding including fine pyrite and blood-red iron oxide; such veins are abundant in Hole 2 and are considered prospective for the concentration of gold in late, lower temperature fluids evident throughout the H-K hydrothermal system.