The Hoodoo occurrence is underlain by a sequence of mafic to felsic volcanics, primarily pyroclastic in character, of the Upper Triassic Stuhini Group. The volcanic rocks have been subsequently intruded by a gabbroic body. Late intrusive mafic dykes related to recent volcanism in the area have intruded all rock types.
The volcanics trend west-northwest, dipping from 70 degrees north to near vertical. The mafic to intermediate volcanics are generally dark grey to black and consist of a series of tuffs and lapilli tuffs with minor agglomeratic horizons. The felsic volcanics are typically pyroclastic in nature, made up predominently of tuffs, lapilli tuffs and agglomerates. Also recognized are two unique sub-units of finely laminated cherty tuffs and heterolithic tuffs.
The North Zone occurs at the structural top of a carbonatized mafic volcanic unit. Anomalous silver values occur along the entire exposed strike length of the 500 metre long gossan zone. The silver rich veins are sporadic and do not appear to be fracture controlled. Mineralization within the pyritized, quartz-carbonate altered zones includes argentite, pyrargyrite, cinnabar and bornite (Equity Preservation Corp., 1988).
The Hoodoo 1-5 claims were staked in 1982 for Kerr Addison Mines Ltd. Three days were spent prospecting and sampling on the property just after staking. In addition to limited geological, mapping, 22 stream sediment and soil samples and 30 rock chip samples were collected and analyzed for Au, Ag, Sb, As and Hg.
The Hoodoo 1-5 claims were restaked in 1983 for Kerr Addison Mines Ltd. Eight days were spent on the property by a two man crew after staking. Work was primarily prospecting and sampling with minor geological mapping and hand trenching. Seventeen soils and twenty-seven rock samples were collected and analyzed for Au, Ag, As and Sb. Some of the samples were also run for Ba, Hg, Cu, Zn and Pb. Geology was recorded at sample sites and plotted on 1:lO.OOO scale map.
In 1990, Kerr Addison conducted a program to re-establish grid lines, originally established in 1982-1983, spot collars for diamond drilling and take rock samples, which amounted to 55.
In 1991, Kerr Addison Mines Ltd once again restaked the area original Hoodoo 1-5. Argillite units exposed on the Hoodoo claims were systematically panel and chip sampled to assess their potential for hosting a volcanogenic massive sulphide zone. Seven days were spent on the claims resulting in the collection of 57 samples of argillite and five other mineralized samples. It was reported that the few slightly anomalous samples occurred in the vicinity of shear related mineralization and the potential for discovering a volcanogenic massive sulphide zone was low.
