Newly Discovered Volcanic-Hosted Massive Sulphide Potential within Paleozoic Volcanic Rocks of the Stikine Assemblage, Terrace Area, Northwestern British Columbia (NTS 103I/08)

Key to this dis cov ery was the rec og ni tion of a group of Palaeozoic, sub ma rine vol ca nic rocks, named the Mount Attree volcanics, which had pre vi ously been mapped as part of the Lower Ju ras sic Telkwa For ma tion (Woodsworth et al., 1985). The Lower Telkwa vol ca nic rocks are not con sid ered pro spec tive for VHMS de pos its be cause they formed in a subaerial, compressional en vi ron ment, whereas the Pa leo zoic vol ca nic rocks formed in a sub ma rine set ting and an extensional tec tonic en vi ron ment fa vour able to VHMS for ma tion. Fur ther more, the Pa leo zoic vol ca nic rocks are cor re la tive with the Stikine as sem blage which is host to mul ti ple, significant VHMS deposits within BC (Fig 2).