Jul 26 2017
Trek Mining Inc. is pleased to announce positive results from an additional 30 shallow step-out and infill drill holes totalling 3,761 metres (“m”) drilled below the shallow, westernmost Piaba reserve pit and along strike at the Company’s 100%-owned Aurizona Gold Mine (“Aurizona”) in Brazil.
Further to the May 17, 2017 and June 27, 2017 news releases, Piaba West drilling to date has successfully intersected significant gold mineralization within, below and up to 350 m along strike of the Piaba gold deposit reserve pit, including shallow and higher-grade mineralization along sections 1800W and 1850W as highlighted by 20 m grading 5.06 grams per tonne gold (“g/t Au”) in hole BRAZP596.
Drilling highlights include:
- 1.13 g/t Au over 44.5 m in BRAZD534
- 0.95 g/t Au over 21.8 m in BRAZD535
- 5.70 g/t Au over 8.7 m, 1.29 g/t Au over 21.0 m and 0.96 g/t Au over 11.0 m in BRAZD536
- 0.59 g/t Au over 21.2 m in BRAZD537
- 2.29 g/t Au over 5.1 m and 1.33 g/t Au over 25.3 m in BRAZD538
- 1.07 g/t Au over 32.7 m in BRAZD539
- 3.63 g/t Au over 8.0 m in BRAZD540
- 1.50 g/t Au over 6.4 m and 1.38 g/t Au over 11.1 m in BRAZD541
- 3.20 g/t Au over 12.2 m in BRAZD542
- 1.89 g/t Au over 6.2 m and 2.60 g/t Au over 4.0 m in BRAZD543
- 0.79 g/t Au over 22.0 m and 1.43 g/t Au over 15.0 m in BRAZP595
- 1.49 g/t Au over 5.0 m and 5.06 g/t Au over 20.0 m in BRAZP596
- 2.16 g/t Au over 6.0 m in BRAZP599
- 1.88 g/t Au over 19.0 m in BRAZP603
- 4.95 g/t Au over 3.0 m and 3.32 g/t Au over 4.0 m in BRAZP606
- 1.26 g/t Au over 17.0 m in BRAZP607
- 2.13 g/t Au over 6.0 m in BRAZP61
Drill holes BRAZD542 and BRAZP610 were drilled to follow up BRAZP575, a recent 300 m step-out hole that intersected 3.90 g/t Au over 11.0 m. BRAZD542 was designed as a 50 m undercut of the mineralized zone and intersected 3.20 g/t Au over 12.2 m. BRAZP610 stepped out an additional 50 m along strike to the west and intersected 2.30 g/t Au over 6.0 m, confirming that gold mineralization extends at least 350 m along strike.
A total of 6,839 m has been drilled in 65 holes at Piaba West this year. This first pass program, designed to extend mineralization to depth and along strike, is now complete. The Company is currently designing the next phase of drilling which will include approximately 12,000 m split between additional infill drilling at Piaba West to facilitate incorporation into Aurizona resources and reserves, and the testing of several high-potential near-mine targets.
Trek Mining’s exploration team is currently mapping regional targets in advance of the next phase of drilling. In addition, the team is interpreting data collected in the airborne magnetic, radiometric and electromagnetic surveys flown earlier this year by the Company’s greenfields exploration joint venture partner, AngloGold Ashanti Holdings plc. (“AngloGold”). AngloGold and Trek Mining will use the survey data to further define exploration targets for their respective drill programs. AngloGold commenced drilling in Q2-2017, with plans to drill 17,000 metres in 2017.
About the Aurizona Gold Mine
The current reserve and resource model for Aurizona outlines a 6.5-year mine life based on reserves identified in the Piaba and Boa Esperança pits. Gold mineralization is structurally controlled by subvertical, strike-slip shear zones occurring along significant lithological contact between metavolcano-sedimentary units and intrusive rocks. Host rocks are hydrothermally altered quartz diorite and plagioclase-quartz diorite rocks. The mineralization style is disseminated stockwork and vein-hosted sulphides and gold within a silicified shear zone. Gold mineralization at Piaba West is hosted in a northern, hanging wall sequence composed mainly of diorite and quartz diorite intrusives with subordinate dacitic volcanics. Additional information about Aurizona is available in the September 2016 “Pre-feasibility Study on Aurizona Mine Project, Maranhão, Brazil, NI 43-101 Technical Report” that is available on the Company’s website and on SEDAR at www.sedar.com.
Source: https://www.trekmining.com/investors/news/2017/trek-mining-continues-to-intersect-significant-gold-mineralization-at-piaba-west