Red Mountain - New Geochemical Anomalies Identified Revised
- A detailed regional stream sediment survey identifies 8 high priority geochemical targets for follow-up.
- Strong base metal anomalism up to 1.1% zinc in streams indicates high prospectivity for outcropping massive sulphides.
- Strong precious metal and other pathfinder elements detected.
- Target areas cluster in two distinct areas; west of the known mineralisation at Dry Creek (the southern limb of the Bonnifield syncline) and in the Glacier Creek area with strong sulphide footwall alteration on the northern limb of the Bonnifield syncline.
During the 2018 field season White Rock completed a detailed regional stream sediment program over prospective stratigraphy within the Red Mountain project area. This part of the comprehensive 2018 exploration program was optimised based on the geochem orientation survey completed across known mineralisation at Dry Creek. This "calibration" provided a geochemical signature of base metal and precious metal elements together with other pathfinders to use for future exploration of the VMS prospective stratigraphy on both the northern and southern limbs of the regional Bonnifield syncline.
This 2018 reconnaissance program identified a number of extensive alteration features for future exploration. Some of these extend on surface for several kilometres of strike. The results from the regional stream sampling program have successfully highlighted 8 priority anomalies within the area of alteration (Figure 1), providing areas for immediate focus through follow-up ground reconnaissance, surface sampling and the application of electrical geophysics prior to drill targeting.
The significance of some of the geochemical anomalies is illustrated by the tenor of anomalism with one stream sample returning 1.1% Zn in an area towards the top of the VMS prospective stratigraphy to the west of the Dry Creek deposit. No previous exploration has prospected the immediate catchment area indicating how prospective the immediate surrounds remain.
In addition, the area of the northern limb known as Glacier Creek displays footwall sulphide alteration that extends for over 10km of strike. The stream sediment survey has identified 4 discrete high priority targets within the area of alteration. Follow-up work will now be able to focus on these discrete areas of anomalism to enable rapid advancement to drill testing in 2019.
CEO Matt Gill said "We recently expanded our tenement footprint three-fold, to now hold a strategic land package of some 475km2. This expansion follows a successful first year of field activities for White Rock where drilling intersected multiple high-grade intervals of zinc-silver-lead-gold-copper mineralisation at Dry Creek and West Tundra (ASX Announcements dated 18 June 2018, 4 July 2018 and 20 August 2018). With some drill hole results returning in excess of 17% zinc, 6% lead, 1,000 g/t silver, 6 g/t gold and 1.5% copper, the 2018 field season also saw three reconnaissance crews out in the field mapping and sampling. The culmination of this work encouraged White Rock to expand its strategic tenement holding to take in more of what has been identified as a highly prospective geological setting.
In addition to this successful drilling campaign, including a new discovery of high-grade zinc-rich VMS mineralisation at the Hunter prospect, we now have the results from our regional stream sediment sampling campaign. These results reinforce our belief that the Red Mountain project could yield a camp of VMS deposits in the year ahead.
Together with the expansion of the tenement package to 475km2 and coverage of multiple new VMS occurrences throughout the Bonnifield district (Figure 2), White Rock is now poised to advance the project rapidly in 2019 through a second year of aggressive prospecting and drilling."
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About White Rock Minerals Ltd
White Rock Minerals Ltd (ASX:WRM) is a diversified explorer and near-stage producer, headquartered in Ballarat, Victoria. The Company's flagship exploration project is Red Mountain in central Alaska, where it has an earn-in joint venture arrangement with Sandfire Resources NL. At Red Mountain, there are already two high grade deposits, with an Inferred Mineral Resource of 9.1 million tonnes @ 12.9% ZnEq for 1.1 million tonnes of contained zinc equivalent. The Mt Carrington project, located near Drake, in Northern NSW, is a near-production precious metals asset with a resource of 341,000 ounces of gold and 23.2 million ounces of silver. White Rock Minerals is listed on the ASX:WRM.
White Rock Minerals Ltd