The KZ showing is underlain by Lower Jurassic intermediate volcanic rock of the Betty Creek Formation, Hazelton Group.
Three samples from the Kirkham zone area are weakly anomalous in coppe, ranging from 0.11 per cent to 0.96 per cent copper (Assessment Report 37443). Malachite and azurite are associated with thin, sheared quartz veins in a silicified intermediate volcanic. All remaining samples from the Kirkham Zone were below background with respect to precious and base metals.
Six traverses were completed in the Kirkham and Bell zone areas. These traverses revealed that polyphase folded mudstones (interpreted as the Stuhini Group) are in unconformable contact with andesitic tuffs of the Lower Betty Formation.
WORK HISTORY.
In 2014, on behalf of Pretium Exploration on their Bowser property, an 1,885 line-kilometer magnetic and radiometric survey was flown at 400 meter line spacing. Due to inclement weather, only 350 line kilometers of 1TEM Time Domain Electromagnetics (TDEM) were flown (Assessment Report 36790).
In 2015, Pretium expanded the magnetometer and radiometric survey area to the east and south, as well as infilled specific block areas to 200 meter line spacing. A total of 1,139 kilometres of magnetics and radiometrics were completed. In 2015, the proposed 2014 1TEM survey blocks were also completed, and the 1TEM survey grid was extended to match the area covered by the 2015 magnetometer and radiometric grids, totaling 3,402 1TEM line kilometers flown that year. Follow-up work was to focus on areas where the resistivity and conductivity indicate alteration, and the conductive anomalies might indicate a massive sulphide bodies.
In 2016, Pretium Exploration iniatiated 4 kilometre Magnetotelluric (MT) line starting in the Canoe Glacier valley, crossing over the toe of the Knipple Glacier, continuing on to Scott Creek. A Direct Current Induced Polarization (DCIP) was also completed, focusing on the Salmon River Quock Member sediments and the underlying volcanics at the Kirkham, Pipe Dream, Knipple Lake, and Cone zones. Ten DCIP lines, covering 23.5 kilometres with 19 MT sites, as well as 26 MT stations covering the Bowser Valley were completed. In order to expand the structural and lithological interpretation at KL Gossan and KL East Zones, where outcrop exposure was minimal, 24 more MT sites were surveyed. The results of this 2016 work included the identification of 55 zones of interest related to resolved anomalies over Cone Zone (5), Kirkham (18), Pipe Dream (21), regional MT Transect line (5) and Bowser infill MT area (6) (see Assessment Report 36790 forfurther information).
In 2016, Precision GeoSurveys Inc, on behalf of Pretium Exploration, completed a 1,400 line kilometer airborne magnetic and radiometric survey on the Bowser Property. The survey covered the southern end of the Bowser Property, as an irregular 24.7 x 23 kilometre block, with 200 meter line-spacing, flown north-south, and 2 kilometres tie lines. The purpose of the survey was to complete the magnetometer and radiometrics coverage over the entire Bowser Property claim area, as the northern extents of the property had previously been flown in 2014 and 2015. See Assessment Report 36793, Appendix III for Precision's,"Airborne Geophysical Survey Report", including 2014-2016 magnetic and radiometric maps.
In 2017, Pretium Exploration conducted grass roots prospecting, sampling and mapping on their Bowser property, mostly southwest and south of Bowser Lake. They collected 2901 rock and 429 silt samples.
See Betty (104A 008) for further details of work history on the Bowser Property.
