Mr. Tim Barry reports
SILVER BULL COMMENCES 3,000 METER DRILL PROGRAM
Silver Bull Resources Inc. has commenced an initial 3,000-metre exploration drill program using Major Drilling at the Sierra Mojada project in Coahuila, Northern Mexico.
The program is targeting potential sulphide mineralization at depth believed to be underneath and adjacent to the main zone of mineralization already defined at Sierra Mojada. Deep structures are thought to be the conduits from which the shallow mineralization seen on the project has been emplaced, and are the targets of this program. A number of drill holes have previously intercepted structurally controlled sulphide mineralization such as drill hole B11144, which intercepted 8.45 metres at 17 per cent zinc, 5.45 per cent lead and 60 grams per tonne silver starting at 193 metres. In addition, recent underground mapping and sampling identified another area of structurally controlled sulphide mineralization with underground channel samples returning grades up to 690 g/t silver, 15.25 per cent zinc, 4.8 per cent lead and 1 per cent copper.
During August and September the company completed a 590-line-kilometre airborne magnetic geophysics survey over the main deposit at Sierra Mojada targeting structures at depth. In addition, over 20,000 metres of drill core have been relogged over areas of high interest and a new structural model has been developed for the main deposit.
This work has identified a number of deep structures that are coincident with known high-grade historical silver and zinc mines in the area and are the main targets for the drill program. Strong copper anomalies are also coincident with these structures and are thought to represent hotter fluids coming up from depth.
Sample analysis and quality assurance/quality control
All samples have been analyzed at ALS Chemex in North Vancouver, B.C., Canada. Samples are first tested with the ME-ICP41m procedure which analyzes for 35 elements using a near-total aqua regia digestion. Samples with silver values above 100 parts per million are reanalyzed using the Ag-GRA21 procedure which is a fire assay with a gravimetric finish. Samples with zinc, lead and copper values above 10,000 ppm (1 per cent) are reanalyzed using the AA46 procedure which is a near-total aqua regia digestion with an atomic absorption finish.
A rigorous procedure is in place regarding sample collection, chain of custody and data entry. Certified standards and blanks, as well as duplicate samples, are routinely inserted into sample shipments to ensure integrity of the assay process.
The Sierra Mojada project is located 150 kilometres north of the city of Torreon in Coahuila, Mexico, and is highly prospective for silver and zinc.
The technical information of this news release has been reviewed and approved by Tim Barry, a chartered professional geologist (CPAusIMM), and a qualified person for the purposes of National Instrument 43-101.
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