Location

HIGHLIGHTS:

  • Near-surface, high-grade, sulphide-rich gold and cobalt mineralisation confirmed
  • Massive sulphides may represent a feeder zone from underlying porphyry source 
  • Maximum grades returned of 53.8g/t Au (over 0.90m) and 2.82% Co (over 0.80m) 
  • Best gold intercept: DSA-14: 19.6m @ 8.6g/t Au, including 15.3m @ 10.6g/t Au
  • Best cobalt intercept: DSA-14: 3.65m @ 1.19% Co, including 1.5m @ 2.66% Co
  • Geophysical exploration planned to track sulphide-rich, high-grade mineralisation

Azure Minerals Limited (ASX: AZS) (“Azure” or “the Company”) is pleased to advise that followup diamond drilling has intersected additional high-grade gold and cobalt mineralisation on its 100%-owned Sara Alicia project, located in Sonora State, Mexico.

The Stage 2 drilling campaign comprised 13 holes for 1126.90m (see Figures 1 to 3), designed to test for extensions to the high-grade gold and cobalt mineralisation identified by its 2017 maiden drilling program, which intersected up to 26.2m @ 9.5g/t Au and 1.26% Co (refer ASX announcements dated 27 November and 7 December 2017).

Some significant mineralised drill intersections from the current program include:

GOLD
DSA-07: 3.75m  8.08g/t Au from 11.80m
DSA-08: 5.90m @ 5.50g/t Au from 40.90m
DSA-14: 3.65m @ 8.41g/t Au from 0.0m
DSA-14: 19.60m @ 8.65g/t Au from 10.65m
DSA-15: 8.80m @ 6.20g/t Au from 6.10m
COBALT
DSA-14: 3.65m @ 1.191% Co from 0.0m
DSA-14: 24.95m @ 0.312% Co from 9.15m
DSA-15: 9.50m @ 0.481% Co from 3.80m
DSA-16: 16.20m @ 0.326% Co from 9.15m
 

Hole DSA-14 unexpectedly drilled into a mining void, indicating the old mine workings may be more extensive than recorded in the historical data. DSA-14 intersected 19.6m @ 8.65g/t Au, which included a 1.90m mining void from 22.75m to 24.65m downhole. Drill core samples taken from immediately above and below the void returned high grade mineralisation of 19.95g/t Au & 0.907% Co and 19.0g/t Au & 1.065% Co respectively, suggesting that higher grade material may have been exploited by the historical miners.

The high-grade cobalt mineralisation is hosted within a shoot of massive and semi-massive sulphides that outcrops near the top of the Sara Alicia hill and plunges at a shallow angle towards the northwest. This sulphide-rich shoot also contains high grade gold mineralisation, while drilling has confirmed that gold is widespread in the rocks of the surrounding skarn system.

Historical mining within the upper 40m exploited some of the highest grade material but drilling and inspection of the mineralised system within the old mine workings indicate that the shoot continues at depth towards the northwest. Azure considers that this sulphide-rich mineralisation may represent a feeder zone sourced from the underlying porphyry that extends upwards into the overlying limestone, now skarn, horizon.

The massive and semi-massive sulphides forming the mineralised shoot provide the Company with the opportunity to explore for extensions of the gold and cobalt mineralisation by utilising geophysical techniques. Azure is planning an Induced Polarisation (IP) survey to trace the subsurface dimensions and orientations of the mineralised zone.

Figure 1: Drill hole location plan
 
 
 
 
Figure 2: Leapfrog 3D model of gold mineralised zone at Sara Alicia
 
 
 
Figure 3: Leapfrog 3D model of cobalt mineralised zone at Sara Alicia
 
 
 
TABLE 1: Significant gold intercepts from Sara Alicia (holes DSA-07 to DSA-19)
 
 
 
TABLE 2: Significant cobalt intercepts from Sara Alicia (holes DSA-07 to DSA-19)
 
 
 
Table 3: Location data for Sara Alicia diamond drill holes (DSA-07 to DSA-19)
 
 
For enquiries, please contact:
 
Tony Rovira
Managing Director
Azure Minerals Limited
Ph: +61 8 9481 2555
Media & Investor Relations
Michael Weir / Cameron Gilenko
Citadel-MAGNUS
Ph: +61 8 6160 4903
 
 
Competent Person Statements:
 
Information in this report that relates to Exploration Results for the Oposura Project is based on information compiled by Mr Tony Rovira, who is a Member of The Australasian Institute of Mining and Metallurgy and fairly represents this information. Mr Rovira has sufficient experience relevant to the style of mineralisation and type of deposit under consideration, and to the activities undertaken, to qualify as a Competent Person as defined in the 2012 Edition of the Joint Ore Reserves Committee (JORC) Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Rovira is a full-time employee and Managing Director of Azure Minerals Limited and consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
 
Information in this report that relates to previously reported Exploration Results has been crossed-referenced in this report to the date that it was originally reported to ASX. Azure Minerals Limited confirms that it is not aware of any new information or data that materially affects information included in the relevant market announcements.
 
 
 
 

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Maza Drilling is a Mexican company established in 2007 in Mazatlán, Sinaloa. Our Canadian founder, Mr. Guy de Launiere, has over 20 years of international experience managing diverse drilling operations. Maza Drilling strives to compete at the highest levels in terms of recovery, effectiveness, efficiency, and affordability at every project while keeping at the forefront of technology to meet our customer’s needs in this demanding market.