Vancouver, British Columbia: Calibre Mining Corp. (TSX-V: CXB) (the “Company” or “Calibre”) is pleased to announce additional trenching results and the start of Phase 1 diamond drilling on the Minnesota Gold Project within the B2Gold Corp. (“B2Gold”) (TSX:BTO, BTG:NYSE MKT) Joint Venture on the Borosi concessions, northeast Nicaragua. Calibre controls a 49.0% interest in the joint venture and B2Gold has a 51.0% interest and is project operator. B2Gold has the right to earn an additional 19.0% in the Borosi concessions joint venture by spending $6.0 million in additional project expenditures over three years.
- On the Minnesota Gold Project soil, rock, channel, trench and auger sampling has defined a surface gold anomaly more than three kilometres in length
- Recent trenching on the northern area of the Minnesota gold target intersected 93.5 metres grading 1.65 g/t gold in an altered intrusive and the zone is open in both directions.
- Previous sampling in the central area of the Minnesota gold target returned channel samples including 8.0 metres grading 6.35 g/t gold and 9.2 metres grading 4.17 g/t gold open in both directions
- The Phase 1 Drilling Program will commence at the end of October, 2014 and will include an estimated 1500 metres of diamond drilling in 10 to 12 drill holes
Greg Smith, President and CEO of Calibre stated: “The Minnesota gold project has been methodically advanced over the past 18 months through detailed geological mapping, rock, auger and soil sampling and by trenching. We are very pleased that our joint venture partner B2Gold has decided to initiate a Phase 1 diamond drilling program to test this 3 km long intrusive hosted gold system.”
The Minnesota gold target consists of intrusive hosted gold system within a structurally prepared area with widespread alteration. The surface anomaly has been defined by soil, rock, channel, trench and auger sampling and extends more than three kilometres in length. Previous rock sampling has highlighted three areas along the trend;
- The southern area where channel samples returned; 12.80 metres grading 1.27 g/t Au (BRTR11-057), 6.00 metres grading 2.12 g/t Au (BRTR11-054), and 4.65 metres grading 1.51 g/t Au (BRTR11-053). with each of the three trenches open in both directions
- The central area (one kilometre to the north-east of the southern area) where channel samples returned; 6.40 metres grading 5.56 g/t Au (BRTR11-044), 8.00 metres grading 6.35 g/t Au (BRTR11-047), 9.20 metres grading 4.17 g/t Au (MNTR13-02), 7.5 metres grading 3.93 g/t Au (MNTR13-01), and 7.0 metres grading 1.45 g/t Au (MNTR13-03), with all of these channels and trenches open in both directions.
- The northern area (one kilometre to the north-east of the central area) which has been the focus of the recent trenching with results including 93.5m grading 1.65 g/t Au.
The Phase 1 diamond drilling program will consist of a minimum of 1500 metres in an estimated 10 to 12 diamond drill holes. Drilling will test each of the three highly anomalous areas over the three kilometre length of the Minnesota gold target area.
The latest results from the northern area on the Minnesota Gold Project have further extended the previously defined gold mineralization increasing the trench intercept to 93.5 metres grading 1.50 g/t Au with results for one additional 15 metre extension pending (Trench 16). The trenches continue to expose intensely sericitized grandodiorite with strong hematite staining and variable silicification. This recent trenching was completed on a gold anomalous zone located on the northeastern portion of the Minnesota gold trend. Trenches 6, 7, 8, 9, 10, 11, and the pending 16, form a continuous trench with one metre separations between each segment. Trenches 12, 15, and 17 were completed 100 metres to the southwest of Trenches 6-11. Trenches 14, 18, and 19 tested an area 50 metres north of the Trenches 6-11. Trenches 13 and 20 were completed on the northern and southern edges of the anomalous area.
Trench results from the northern area of the Minnesota Gold Target include;
|Trench ID||From (m)||To (m)||(m)||Au (g/t)|
|MINTR14-013||No significant results|
|Notes;||* previously reported Length weighted averages from uncut assays. Assays for trenches #017 to #020 are pending. Mineralized intervals are open to the north and south. **Combined weighted average assigns zero grade to a 1.0 m gap left unsampled between each of the six trenches|
Updated maps detailing the result of the current exploration program at the Minnesota Gold Project will be posted on the Company’s web site at www.calibremining.com.
Quality assurance and quality control procedures include the systematic insertion of blanks, standards and duplicates into the rock and soil sample strings. Samples are placed in sealed bags and shipped directly to Acme Labs in Managua, Nicaragua for sample preparation and then to Acme Labs in Vancouver, Canada for gold fire assay and ICP-MS multi element analyses. The technical content in this news release was read and approved by Gregory Smith, P.Geo, President and CEO of the Company who is the Qualified Person as defined by NI 43-101.
About Calibre Mining Corp.
Calibre controls a 100% interest in 253 km2 of mineral concessions in the Mining Triangle of Northeast Nicaragua. Additionally the Company has an option agreement with IAMGOLD covering 176 km2 of concessions, joint venture exploration programs underway with B2Gold Corp. on 322.3 km2 of concessions which includes the Primavera gold-copper porphyry discovery and the Minnesota Gold Zone, and has optioned the 33.6 km2 Rosita gold-copper-silver project to Alder Resources Ltd. Major shareholders of Calibre include gold producer B2Gold Corp, Pierre Lassonde and Management.
Calibre Mining Corp.
Greg Smith, P.Geo.
President and CEO
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