Intersection Of Denver Vein One Kilometer Northwest Of DPB Resource Area in Step-Out Drillhole At Tonopah West
VANCOUVER - Blackrock Silver Corp. has encountered the strike extension of the Denver vein system 650 meters north of the DPB resource area on the Tonopah West project, located in the Walker Lane trend of Western Nevada. Drilling is continuing at the Tonopah West project with five (TW22-117 to -121) step-out drillholes completed to date. Drillholes TW22-119 and TW22-120 intersected the Denver vein system approximately one kilometer northwest of the DPB resource area. Assay determinations for TW22-119 are complete and show elevated gold and silver, along with its associated trace element signature of highly enriched antimony, lead, zinc and selenium, flanked by arsenic, potassium and aluminum as a halo around the quartz vein. This mineralization pattern is seen within the ore zones of the Tonopah West vein system.
Drillhole TW22-119 cut 4.5 meters of quartz vein material starting at 741 meters (2430 feet). Precious metal values reached 0.33 g/t gold and 24 g/t silver. From the same drill platform, TW22-120 was drilled southward with a 70-degree inclination targeting the same vein projection but shallower within the system. TW22-120 also encountered the vein over 3 meters at what may be a more favorable elevation within the system and assays are pending at this time. A cross section of the drilling shows the vein is located at the base of the Mizpah andesite which is the stratigraphic location of the Denver vein one kilometer to the southeast. In addition, drillholes TW21-073 and -074 are not deep enough to intersect the vein
Andrew Pollard, President & CEO,said, "As we await completion of our maiden resource estimate at Tonopah West, the latest assays from what is our largest step-out drill program to date have confirmed that this mineralized system goes well beyond the initial resource shell, far surpassing our initial targeting. By intercepting this mineralized vein structure far northwest of what was historically known to be an east-west vein corridor, confirms our geologic interpretation that the vein field that makes up the Tonopah Silver District hugs the margins of a caldera, and juts northwestward towards our newly-staked Tonopah North claims package. The DPB resource area, which is expected to form the crux of our upcoming maiden resource estimate, was drilled over an 800 meter by 800 meter area. By connecting what is projected to be the mineralized extension of this large, multi-vein vein system with a drill intercept one kilometer away highlights potential for a district-scale vein system. We eagerly await remaining assays and have summoned a core rig to site that will immediately follow up on these results. A phase two resource expansion surface drill program is now being planned to commence in April, the extent of which will be determined by remaining assays received from the step-out drill program."