Mr. Greg Smith reports
CALIBRE EXPANDS TRENCH INTERCEPT AT THE 100% OWNED MONTES DE ORO TARGET TO 52.3 METRES GRADING 7.1 G/T GOLD
Calibre Mining Corp. is providing an update on activities at the 100-per-cent-owned Montes de Oro target within the Siuna district, Borosi concessions, northeast Nicaragua.
Highlights
- Results from extensions of trench MTR13-009 have expanded the high-grade
mineralized intercept to 52.3 metres grading 7.1 grams per tonne gold.
- Additional high-grade trench results returned from recent work include:
23.0 m grading 5.25 g/t Au (MTR13-017), including 9.0 m grading 10.15 g/t
Au, and 16.2 m grading 4.68 g/t Au (MTR13-019) including 6.0 m grading 10.14
g/t Au.
- At Montes de Oro, trenching has partially tested a strong coincident
gold-silver-copper-lead-zinc soil anomaly extending over a 400-metre-by-650-metre area that remains open to the northeast.
President and chief executive officer Greg Smith stated: "Calibre continues to advance the Montes de Oro target, intersecting high-grade gold mineralization over expanding widths. This high-priority target continues to return consistently high-grade gold intercepts with recent work now showing apparent widths of several tens of metres. Ongoing work is advancing the understanding of the mineralization."
RECENT TRENCH RESULTS
Trench ID From (m) To (m) Interval (m) Au (g/t) Cu (%) Zn (%)
MTR13-008 4.0 9.5 5.5 3.65 0.03 0.15
MTR13-009 0.0 52.3 52.3 7.07 0.06 1.23
incl 10.7 52.3 41.6 8.46 0.07 1.47
incl 10.7 36.9 26.2 12.54 0.10 2.32
MTR13-017 0.0 23.0 23.0 5.25 0.05 0.38
incl 14.0 23.0 9.0 10.15 0.06 0.29
MTR13-018 20.0 29.0 9.0 3.11 0.02 0.41
MTR13-019 4.8 21.0 16.2 4.68 0.05 0.22
incl 9.0 15.0 6.0 10.14 0.05 0.20
MTR13-020 29.5 38.0 8.5 1.66 0.03 0.23
MTR13-022 0.0 6.0 6.0 4.73 0.03 0.07
MTR13-024 6.3 10.0 3.7 3.86 0.05 0.06
MTR13-025 1.5 5.0 3.5 5.51 0.11 0.32
- Weighted averages calculated using uncut assays.
- Trench intercepts are sample lengths, and further work is required to
determine true widths.
- For previous Montes de Oro trench results, see Calibre news releases
dated June 3 and July 26, 2013.
Based on the latest assays results at least two high-grade subparallel mineralized trends are present at Montes de Oro (MTR13-009 trend and MTR13-017 trend). The zones have an inferred northeast orientation and appear to dip shallowly to the northwest. The MTR13-009 trend may continue as far as MTR13-018, a distance of approximately 200 metres.
Six new trenches and three trench extensions were completed at Montes de Oro during July, 2013, for a total of 208.4 metres. The MTR13-017 tunnel extension returned a composite of 23.0 m grading 5.25 g/t Au and remains open to the northwest. The gold mineralization in MTR13-017 is distributed throughout the tunnel, primarily associated with a strongly oxidized horizon, which dips between 20 and 40 degrees to the northwest roughly concordant with bedding. The mineralized oxide zone present in MTR13R-024 is very similar to the zone present in MTR13-017 and may be an updip extension of the horizon located along strike to the west-southwest. MTR13-024 returned 3.70 m grading 3.86 g/t Au.
Other significant results are from trenches MTR13-022 with 6.0 m grading 4.73 g/t Au, and MTR13-025 with 3.5 m grading 5.51 g/t Au, 0.11 per cent copper and 0.32 per cent zinc. Both MTR13-022 and MTR13-025 contained lenses of massive sulphide with mineralization similar to MTR13-009. The mineralization present in trenches MTR13R-007, MTR13-018 and MTR13R-020 is similar in style, and is primarily hosted within a strongly oxidized, argillic altered and fractured equigranular diorite unit. No obvious quartz veining has been observed, but the rock is strongly fractured and contains rafts of sulphide-bearing sediments. A northeast-oriented zone of higher-grade mineralization can be traced over a length of 50 m between trenches MTR13-020 and MTR13-018. Lower-grade disseminated-style mineralization also exists with long intervals including 39.40 m grading 0.96 g/t Au in MTR13-018 and 50 m grading 0.53 g/t Au in MTR13-020.
In addition to the regional host volcano-sedimentary package, at least two phases of intrusive rocks have been mapped on the property: the principal hornblende-bearing equigranular diorite and a coarse hornblende diorite unit.
The existing soil anomaly at Montes de Oro is a strong coincident gold-silver-copper-lead-zinc anomaly, which extends over a 400-metre-by-650-metre area and remains open to the northeast. Two additional soil lines were added to the Montes de Oro soil grid to test the northeast extension, and a total of 22 samples were collected. The results are pending.
Work continues at Montes de Oro, targeted at further defining the high-grade gold mineralization, and testing the extensions of existing trenches and additional anomalous areas. Updated maps detailing the result of the current exploration programs will be posted on the company's website.
Quality assurance and quality control procedures include the systematic insertion of blanks, standards and duplicates into the rock 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 (inductively coupled plasma) multielement analyses. The technical content in this news release was read and approved by Gregory Smith, PGeo, president and CEO of the company, who is the qualified person as defined by National Instrument 43-101.
Trench ID From (m) To (m) Interval (m) Au (g/t) Cu (%) Zn (%)
MTR13-001 0.00 1.50 1.50 0.21 0.033 0.127
8.00 15.50 7.50 0.12 0.084 0.102
MTR13-002 No significant values
MTR13-003 0.00 0.70 0.70 0.12 0.035 0.011
14.50 16.00 1.50 0.10 0.060 0.021
22.00 26.50 4.50 0.11 0.045 0.034
MTR13-004 0.00 16.00 16.00 0.19 0.023 0.046
4.00 5.50 1.50 0.30 0.022 0.041
10.00 14.50 4.50 0.32 0.025 0.062
MTR13-005 0.00 4.00 4.00 1.25 0.023 0.022
3.00 4.00 1.00 1.64 0.016 0.017
MTR13-006 0.00 1.50 1.50 0.13 0.021 0.026
3.00 4.50 1.50 0.18 0.026 0.026
MTR13-007 0.00 11.00 11.00 0.76 0.067 0.401
6.50 11.00 4.50 1.32 0.035 0.315
24.80 37.50 12.70 0.41 0.020 0.372
MTR13-008 0.00 15.80 15.80 1.48 0.024 0.252
4.00 9.50 5.50 3.65 0.026 0.153
6.00 9.50 3.50 5.11 0.028 0.170
MTR13-009 0.00 52.30 52.30 7.07 0.061 1.229
10.70 52.30 41.60 8.46 0.072 1.470
10.70 36.90 26.20 12.54 0.097 2.320
10.70 27.70 17.00 17.95 0.124 2.750
12.70 20.70 8.00 24.58 0.118 0.052
MTR13-010 No significant values
MTR13-011 No significant values
MTR13-012 No significant values
MTR13-013 0.00 4.50 4.50 0.20 0.071 0.049
1.50 3.00 1.50 0.32 0.092 0.035
6.00 7.50 1.50 0.13 0.004 0.003
MTR13-014 7.40 9.50 2.10 0.35 0.014 0.202
8.50 9.50 1.00 0.61 0.021 0.260
15.00 22.30 7.30 0.38 0.003 0.054
17.80 19.30 1.50 0.72 0.004 0.074
MTR13-015 0.00 6.00 6.00 0.33 0.034 0.037
5.00 6.00 1.00 1.13 0.025 0.061
MTR13-016 No significant values
MTR13-017 0.00 23.00 23.00 5.25 0.053 0.382
0.00 11.00 11.00 2.53 0.047 0.337
7.50 11.00 3.50 4.29 0.069 0.473
14.00 23.00 9.00 10.15 0.059 0.294
20.70 23.00 2.30 26.60 0.032 0.158
MTR13-018 0.00 39.40 39.40 0.96 0.010 0.167
20.00 29.00 9.00 3.11 0.018 0.411
26.00 29.00 3.00 5.64 0.019 0.314
MTR13-019 2.50 22.00 19.50 3.91 0.048 0.224
4.80 21.00 16.20 4.68 0.050 0.221
9.00 15.00 6.00 10.14 0.049 0.198
MTR13-020 0.00 50.00 50.00 0.53 0.025 0.190
11.50 38.00 26.50 0.76 0.030 0.233
29.50 38.00 8.50 1.66 0.034 0.232
29.50 30.50 1.00 4.53 0.034 0.232
MTR13-021 No significant values
MTR13-022 0.00 6.00 6.00 4.73 0.026 0.070
3.00 6.00 3.00 6.20 0.032 0.045
MTR13-023 0.00 6.00 6.00 0.20 0.032 0.610
0.00 2.00 2.00 0.32 0.039 0.399
MTR13-024 6.30 10.00 3.70 3.86 0.055 0.057
5.00 12.00 7.00 2.20 0.039 0.042
MTR13-025 1.50 10.50 9.00 2.97 0.079 0.228
1.50 5.00 3.50 5.51 0.111 0.322
We seek Safe Harbor.
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