Mr. Marc Prefontaine reports
ORLA REPORTS ADDITIONAL INTERCEPTS FROM THE CABALLITO COPPER-GOLD ZONE AT THE CERRO QUEMA PROJECT, PANAMA
Drilling in the Caballito copper-gold zone at Orla Mining Ltd.'s wholly owned Cerro Quema project in Panama has intersected copper and gold values in holes drilled in the eastern part of the zone, including hole CQDH18-169 that intersected 134.0 metres averaging 0.62 per cent copper and 0.14 gram per tonne gold.
Drilling results previously reported from Caballito were mostly from the western side of a 650- to 800-metre-long, 350- to 400-metre-wide, northwest-southeast-trending chargeability anomaly.Six of the seven holes reported herein were drilled to test the eastern part of this anomaly. As predicted by the less pronounced resistivity lows in the east as compared with the west, overall sulphide content returned lower values on the east side; however, all six holes intersected copper and gold mineralization.The most northeasterly hole drilled at Caballito to date, CQDH18-169, intersected 134.0 metres at 0.62 per cent copper and 0.14 g/t gold from 128.0 to 262.0 metres. Hole CQDH18-167, drilled from the same pad, intersected the zone 50 metres to the southeast with 101.7 metres at 0.27 per cent copper and 0.10 g/t gold from 134.5 to 236.2 metres. Both intercepts have higher arsenic associated with the copper than intercepts in the western part of Caballito, indicating a mixture of earlier enargite-dominate mineralization cut by the lower arsenic event.
Holes CQDH18-170 and 171, drilled from the same pad in the central-eastern part of the zone, showed weaker mineralization with CQDH18-170 having the wider intercept of 28.5 metres at 0.30 per cent copper and 0.30 g/t gold from 25.5 to 54.0 metres. Hole CQDH18-166 intersected 14.2 metres at 0.32 per cent copper and 0.31 g/t gold from 56.8 to 71.0 metres followed by 65.2 metres at 0.83 per cent copper and 0.30 g/t gold from 80.8 to 146.0 metres, showing mineralization increases in the southeast part of the zone.Mineralization in hole 166 has a mix of higher and lower arsenic associated with copper.
The furthest southeast hole, CQDH18-165, intersected 22.1 metres at 0.52 per cent copper and 0.27 g/t gold from 56.7 to 78.8 metres.Mineralization in hole 165 is very low in arsenic.
CQDH18-168 was drilled to the southwest from the same pad as CQDH18-167 and 169.It crossed a projected fault that appears to displace mineralization to the northeast of the Caballito zone.
The Caballito zone is only one-third of a trend where there is evidence of similar copper-gold mineralization.The focus is now to test the rest of this trend for other potential zones with the intensity of mineralization seen at Caballito. Drilling continues at Sombrero, directly north of Caballito. The extension to the induced polarization (IP) survey northward through the Quemita area is now complete and results will be used as an exploration guide for copper-gold mineralization under the oxide reserve.
TABLE OF DRILL HOLES RELEASEDInterceptsHole ID Zone From (m)To (m) Width (m)Au (g/t)Cu (%)CQDH-18-165Caballito36.045.0 9.00.920.1956.778.822.10.270.52CQDH-18-166Caballito56.871.014.20.310.3280.8 146.065.20.300.8381.393.011.70.282.38CQDH-18-167 Idaida 134.5 236.2 101.70.100.27 223.5 234.010.50.160.76CQDH-18-168 IdaidaNo significant interceptCQDH-18-169 Idaida 128.0 262.0 134.00.140.62CQDH-18-170 Idaida25.554.028.50.300.30CQDH-18-171 Idaida79.984.5 4.60.120.94 130.5 135.0 4.50.131.07(1) All gold and copper values are uncut except for hole CQDH-18-160 where 7.0 per cent and 36.0 per cent copper assays were cut to 3.4 per cent (third-highest assay).(2) Widths are shown as intercepted widths.(3) Drill results were reviewed and approved by Hans Smit, PGeo, chief operating officer at Orla Mining.(4) Data as of Aug. 21, 2018.
At Caballito, mineralization is controlled by both high-angle structures and shallow-dipping lithology.Therefore, the true widths of intersections are difficult to determine.
Quality control protocols
All gold results were obtained by ALS Minerals (Au-AA23) using fire assay fusion and an atomic absorption spectroscopy finish. All samples are also analyzed for multielements, including silver and copper, using an aqua regia (ME-ICP41) method at ALS Laboratories in Peru. Samples with copper values in excess of 1 per cent by ICP analysis are rerun with Cu AA46 aqua regia and atomic absorption analysis. Drill program design, quality assurance/quality control and interpretation of results are performed by qualified persons employing a quality assurance/quality control program consistent with National Instrument 43-101 and industry best practices. Standards, blanks and duplicates are included approximately one every 25 samples for quality assurance/quality control purposes by the company as well as the lab. Approximately 5 per cent of sample pulps are sent to a secondary laboratory for check assays. The HQ diameter core is halved with a diamond saw.
Qualified person
The technical information in this news release has been reviewed and approved by Hans Smit, PGeo, chief operating officer of Orla Mining, who is the qualified person for the technical information in this news release under National Instrument 43-101 standards.
About Orla Mining Ltd.
Orla is developing the Camino Rojo project, an advanced gold and silver open-pit and heap leach project, located in Zacatecas state, central Mexico. The project is 100 per cent owned and covers over 200,000 hectares. Access and infrastructure are excellent with a paved highway and power line nearby. An NI 43-101 technical report on Camino Rojo dated June 19, 2018, is available on SEDAR under the company's profile.Orla also owns 100 per cent of the Cerro Quema project in Panama which includes a near-term gold production scenario and various exploration targets.
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