CONTENTS Page Taeroduct ion Phone reece errr Oe He eee essere TE DE OEE EHH EHO RED OF EIOO® 1 Physical PEqtruresS seereccevececveseservrresesssvessevresreereveer a General ZEClLOgy evevevreevrerevscreroenssaserecssereveseenessosese 2 Structural geology cecvssecccvegesrerssesesveeesorsersseesserene 7 Carbonatization seceocsccavucssravseserserassrsnessesessevarseves 8 He Onomic MANCrALS sevscecscccrccsanscvecsscessespessesoseeessses 9 Descriptions Of properticS cescsescesereacccneraneressesneevesees 12 Illustrations Preliminary map 42-11A - Pinchi Lake Mercury Belt, British Columbia. Figure 1. Geology in vicinity of Pinchi Lake mercury mine (facing). 18