VANCOUVER, British Columbia, Nov. 15, 2017 (GLOBE NEWSWIRE) -- Silver Bull Resources, Inc. (TSX:SVB) (OTCQB:SVBL) (“Silver Bull”) is pleased to provide results from its continued underground drill program targeting the newly discovered Sulphide Zone, which sits under the previously defined oxide zone on the Sierra Mojada Project in Coahuila, Northern Mexico.
Highlights from the four holes announced in this news release include:
- Hole T17003 – 16 meters @ 396g/t silver and 1.61% copper including 5 meters @ 379g/t silver and 3.25% copper from 0 meters to 5 meters, and 6 meters @ 610g/t silver and 1.12% copper from 10 meters to 16 meters.
- Hole T17004 – 7 meters @ 370g/t silver and 0.85% copper. Hole hit historical workings and was terminated
- Hole T17006 – 4.8 meters @ 352g/t silver and 0.58% copper. Hole hit historical workings and was terminated
The Sulphide Zone: A continuous underground channel sampling program conducted by Silver Bull during the month of August 2017 identified a series of east-west trending high angle structure hosting sulphide mineralization (announced in a news release on 11 September 2017). Results from the continuous channel sampling program yielded 31.5 meters grading at 22.36% zinc, 134.5g/t silver, 2.05% lead, 0.21% copper and 10.5 meters @ 432g/t silver, 1.15% zinc, 0.05% lead, 1.22% copper and is the target of the current drill program
The Drill Program: For the drill program Silver Bull is utilizing a company owned Termite drill rig which aims to test the grade, thickness, and continuity of the sulphide mineralization identified by the channel sampling program. The Termite is capable of drilling up to 100 meters of NQ diamond core and five drill stations are presently planned with more expected to be added as the drill program progresses.
Assays for the holes are as follows:
| Hole_ID | Hole Length (m) | From (m) | To (m) | Interval (m) | Ag (G/T) | Cu (%) |
| T17003 | 60.65 | 0 | 16 | 16 | 396 | 1.61 |
| including | 0 | 5 | 5 | 379 | 3.25 | |
| and | 10 | 16 | 6 | 610 | 1.12 | |
| T17004 | 10 | 0 | 7 | 7 | 370 | 0.85 |
| T17005 | 31 | No significant results | ||||
| T17006 | 7.5 | 0 | 4.8 | 4.8 | 352 | 0.58 |
Tim Barry, President, CEO and director of Silver Bull states, “The results from this batch of drilling in the sulphide zone are exceptional. The consistent high grade silver-copper mineralization we see in this particular area is hosted along a steeply dipping fault and remains open down dip and in the east and west directions. From what we now know, it has also become apparent that this zone is severely underrepresented in historic drilling as the historic surface drill holes in this area are vertical, meaning that unless they were drilled directly down the steeply dipping structures we are currently defining, any drilling in this area would have completely missed these very high grade zones. As we understand more about this area we can now project the mineralization into the extensive channel sampling and drilling completed at the eastern end of the deposit and show a target over 3 kilometers in strike length. When you consider this, coupled with the fact we have identified at least two other structures similar in grade of mineralization, dip and orientation, it presents a very significant target and only adds to the sulphide story at Sierra Mojada. In addition to the drilling, work is currently underway to access some of the underground workings further east to confirm the style of mineralization.”
About the Sierra Mojada deposit: Sierra Mojada is an open pittable oxide deposit, as disclosed in the NI43-101 "Technical Report on the Resources of the Sierra Mojada Project Coahuila, Mexico" dated June 8, 2015, with a NI43-101 compliant measured and indicated "global" resource of 58.7 million tonnes grading 3.6% zinc and 50g/t silver at a $13.50 NSR cutoff giving 4.670 billion pounds of zinc and 90.8 million ounces of silver. Included within the "global" resource is a measured and indicated "high grade zinc zone" within the Lerchs-Grossman (LG) Optimized Pit of 10.03 million tonnes with an average grade of 11% zinc at a 6% cutoff, giving 2.426 billion pounds of zinc, and a measured and indicated "high grade silver zone" of 19 million tonnes with an average grade of 102.5g/t silver at a 50g/t cutoff giving 62.6 million ounces of silver. Mineralization remains open in the east, west, and northerly directions. Approximately 60% of the current 3.2 kilometer mineralized body is at or near surface before dipping at around 6 degrees to the east.
Sample Analysis and QA/QC: All samples will be analyzed at Bureau Veritas in Vancouver, BC, Canada. Samples will be first tested with the "MA300" procedure which analyzes for 36 elements using a 4 acid digestion. Samples with silver values above 100ppm are re-analyzed using the FA350 procedure which is a fire assay with a gravimetric finish. Samples with zinc, lead, and copper values above 10,000ppm (1%) are re-analyzed using the AR402 procedure which is a near total aqua regia digestion.
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.
About Silver Bull: Silver Bull is a mineral exploration company whose shares are listed on the Toronto Stock Exchange and trade on the OTCQB in the United States, and is based out of Vancouver, Canada. The "Sierra Mojada" project is located 150 kilometers 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.
