Mr. Wayne Reid reports
GTA REPORTS ENGINEERING STUDY RESULTS FOR THE AFRIC ZONE, NORTHSHORE PROPERTY
Recent activity on GTA Mining and Resources Inc.'s Northshore project has included continuing evaluations of the Afric gold deposit. Part of this evaluation included independent pit design studies, conducted by George Dermer, PEng, of Moose Mountain Technical Services, based in Cranbrook, B.C. The Northshore property, near Schreiber, Ont., Canada, is located in Priske township, approximately 200 kilometres east of Thunder Bay or 125 km west of Hemlo, Ont. GTA owns a 51-per-cent interest in the Northshore property with the remaining 49-per-cent interest held by Balmoral Resources Ltd.
On June 10, 2014, GTA reported the initial NI 43-101 mineral resource estimate for the Afric deposit (see press release dated June 10, 2014). This maiden mineral resource estimate was prepared by Gary Giroux, PEng, of Giroux Consultants Ltd., and Doug Blanchflower, PGeo, of Minorex Consulting Ltd. At a cut-off grade of 0.50 gram gold per tonne the classified mineral resource was estimated to be:
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Indicated category: 391,000 ounces gold in 12.36 million tonnes at a grade
of 0.99 g/t gold;
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Inferred category: 824,000 ounces gold in 29.58 million tonnes at a grade
of 0.87 g/t gold.
Details of this resource estimate and other background information are included in the NI 43-101 technical report. This report, entitled "Technical report on the mineral resources of the Northshore property," dated June 30, 2014, has been filed on SEDAR.
Recently, GTA contracted the mining engineering services of Moose Mountain to outline areas of higher grade, near-surface gold mineralization hosted within the Afric zone. Moose Mountain designed pit shells based upon geological models provided by Mr. Giroux and Mr. Blanchflower using a Lerchs Grossman (LG) pit design software program, and generated a sequence of pits which ranged from 5,000 to 1.5 million tonnes. The results of this pit design process identified two potential open pit mining areas with near-surface gold mineralization. A smaller and larger pit option has been defined in each area.
Detailed information for these selected pit areas (termed the West and East pits) are as displayed in the tables.
SELECTED PITS, WEST AREA
West area Indicated Indicated Au Inferred Inferred Au
pit tonnes (g/t) tonnes (g/t)
Pws 28 56,825 2.92 0 0.00
Pws 31 100,665 2.80 0 0.00
West area Total waste Stripping Total oz Total oz
pit tonnes ratio indicated inferred
Pws 28 37,867 0.67 5,335 0
Pws 31 111,822 1.11 9,062 0
SELECTED PITS, EAST AREA
East area Indicated Indicated Inferred Inferred
pit tonnage Au (g/t) tonnage Au (g/t)
Pes 28 0 0.00 62,809 2.86
Pes 31 91,449 2.38 287,060 2.63
East area Total waste Stripping Total oz Total oz
pit tonnage ratio indicated inferred
Pes 28 21,538 0.34 0 5,775
Pes 31 271,416 0.72 6,998 24,273
SELECTED PITS, BOTH AREAS
All areas Indicated Indicated Inferred Inferred
pit tonnage Au (g/t) tonnage Au (g/t)
Pit 28 56,825 2.92 62,809 2.86
Pit 31 192,114 2.60 287,060 2.63
All areas Total waste Stripping Total oz Total oz
pit tonnage ratio indicated inferred
Pit 28 59,406 0.5 5,335 5,775
Pit 31 383,237 0.8 16,060 24,273
The pit areas in the tables outlined by Moose Mountain were designed and defined using the same geological models as those used by Mr. Giroux and Mr. Blanchflower for the resource estimate. The results include inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves, and there is no certainty that the economic viability of this material will be realized in future studies. Also note that there are no changes in the overall indicated and inferred mineral resources estimate reported for the Afric zone, as no mining has been undertaken in these areas and no further geological or drilling work has been carried out since the June, 2014, NI 43-101 technical report.
Of particular interest, each of these proposed pit shells encompass near-surface, higher grade gold mineralization that GTA believes could possibly be extracted with minimal surface disturbances by selective open cut mining operations. In addition, the proposed pit shells exhibit very low strip ratios (waste tonnes to mill feed tonnes).
The West pit area encompasses only indicated mineral resources, has slightly higher gold grades, and has higher gold grades near surface. The East pit is potentially a larger target, but with mostly inferred mineral resources.
"GTA is encouraged with this engineering review and the company is continuing with its in-house evaluations of these and other higher grade mineralized areas hosted within the Afric zone," stated Wayne Reid, president and chief executive officer of GTA Resources and Mining. "We are currently investigating pricing and other logistics for potential infill drilling, base line environmental studies, road upgrades, mining, trucking and milling with the idea of extracting a mini-bulk sample."
Gold mineralization within the Afric zone is hosted within widespread sections of quartz carbonate, pyrite, tourmaline and sericite (and localized potassic) altered felsic to intermediate intrusive and porphyritic rocks. These rocks exhibit brittle deformation and fracturing, and host quartz and quartz carbonate veins, veinlets, stringers and fracture infillings. The fracture infillings are mineralized with pyrite, with minor to trace amounts of chalcopyrite, sphalerite, galena and molybdenite. Multiple occurrences of visible gold were observed in drill core recovered from many of the holes drilled by GTA.
Robert Duess, PGeo, vice-president of exploration for GTA and a qualified person as defined in National Instrument 43-101, is responsible for this release, and supervised the preparation of the information forming the basis for this release. Mr. Giroux, Mr. Blanchflower and Mr. Dermer have approved the disclosure of the technical information contained in this press release.
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