Drilling Highlights
- Mineralogical observations from hole AW-23-106 support the Alwyn Cu-Au mineralized system’s affiliation with metasomatic iron and alkali-calcic (“MIAC”) mineral systems capable of forming iron-rich copper-gold mineralization.
- Chalcopyrite associated with actinolite (Fe-rich amphibole) and andradite garnet (Fe-rich garnet) is interpreted to represent iron seeping into the system to form iron-silicate alteration associated with chalcopyrite mineralization (Figure 2),
- This suggests a potential for the gravity anomalies detected in the Alwyn Cu-Au trend to represent areas of stronger Fe alteration and to potentially host zones of iron-rich alteration affiliated with iron oxide-copper-gold (IOCG) mineralization.
Drill Program Target Summary:
- Drilling of up to 1,000 meters at the
Alwyn Cu-Au trend commenced onJune 8 th, 2023, aiming to:- Expand the footprints laterally and at depth of the vein networks mineralized in copper and gold identified during the 2022 drilling program and indicated by historical drilling (AFRI 41I10NE0158),
- Test the association between gravity highs and hydrothermal iron enrichments that could be suggestive of the presence of iron-rich copper-gold mineralization affiliated with iron oxide copper-gold (“IOCG”) mineralization in the Alwyn Cu-Au trend.
- Drilling integrates new data that supports the extension of copper-gold mineralization outside of the area of the Awlyn Cu-Au trend drilled in 2022 that includes:
- The results from the 2023 gravity survey and 10 new targets generated by ALS GoldSpot in the Alwyn Cu-Au trend (see news releases of
May 12, 2023 , andMarch 3 , 2023), - An updated geological and structural model for copper-gold mineralization at Alwyn, built using recent and digitized historical data and the Company’s collaboration with ALS GoldSpot (AFRI 41I10NE0158; Figure 2).
- The results from the 2023 gravity survey and 10 new targets generated by ALS GoldSpot in the Alwyn Cu-Au trend (see news releases of
- Up to 250 meters of drilling at the Glade Au trend will continue to test for the presence of gold-mineralized iron-rich chlorite alteration discovered during the drilling program of 2022 that is comparable to what is observed at the Scadding Deposit.
- That zone of chlorite alteration contained 0.82 g/t gold over 40.5 m including 7.76 g/t gold over 2.9 m in AG-22-103 (see news release of
September 19 , 2022).
- That zone of chlorite alteration contained 0.82 g/t gold over 40.5 m including 7.76 g/t gold over 2.9 m in AG-22-103 (see news release of
Jean-François
Figure 1. Planned drilling at the Alwyn Cu-Au trend, with gravity anomalies and ALS GoldSpot integrated targets.
Official | Collar location | Hole Attributes | ||||
Easting (m) | Northing (m) | Elevation (m) | Final Depth (m) | Azimuth | Dip | |
Alwyn Cu-Au Trend | ||||||
AW-23-106 | 528406 | 5172103 | 274 | 126 | 190 | -58 |
AW-23-107 | 528406 | 5172103 | 274 | In progress | 235 | -50 |
Table 1: Collar details for drilling along the Alwyn Cu-Au and Glade Au trends. Note that these are the planned collar coordinates and orientations, which will be updated during post drilling surveying.
Copper-Gold Mineralization along the
The MLFZ is emerging as a compelling exploration target for Cu-Au and potentially Co-Au mineralization affiliated with IOCG mineralized systems. Along the 2.5 km-long
Figure 2. Andradite garnet (“Gnt”), and variably chloritized actinolite (“Act + Chl”) with chalcopyrite mineralization in hole AW-23-106.
Regionally, the MLFZ is highly prospective for critical and precious metals mineralization. In addition to Alwyn, along the MLFZ on the
Glade Gold Target
Two of the three drill holes completed in the Glade Au trend in 2022 intersected broad and near surface zones of gold mineralization and confirmed that alteration and mineralization in the Glade Au trend is comparable to gold mineralization and alteration at the Scadding deposit.
The 2023 drilling program in the Glade Au trend will follow up on the successful drilling results of the 2022 and 2021 drilling programs. In 2022, hole AG-22-103 intersected three shallow zones of gold mineralization containing in core length 0.47 g/t gold over 8.5 m, 0.71 g/t gold over 10.35 m and 0.82 g/t gold over 40.5 m including 7.76 g/t gold over 2.9 m (see news release of
Drilling will also continue to test the PGM potential of the
Qualified Person
Jean-François
About
MacDonald Mines is a Canadian exploration company focused on exploring for critical and precious metals in a Metasomatic Iron alkali-calcic (MIAC) mineral system on its 100%-owned, 19,720 ha (197.2 km2)
To learn more about MacDonald Mines, please visit www.macdonaldmines.com
ON BEHALF OF THE BOARD
“Mike England”
_______________________________
Mike England, INTERIM CEO & DIRECTOR
FOR FURTHER INFORMATION PLEASE CONTACT:
Telephone: 1-604-683-3995 TollFree:1-888-945-4770
E-mail: mike@engcom.ca
Forward-Looking Statements
This news release may contain certain “forward looking statements.” Forward-looking statements involve known and unknown risks, uncertainties, assumptions and other factors that may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Any forward-looking statement speaks only as of the date of this news release and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise.
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Figure 1
Planned drilling at the Alwyn Cu-Au trend, with gravity anomalies and ALS GoldSpot integrated targets.
Figure 2
Andradite garnet (“Gnt”), and variably chloritized actinolite (“Act + Chl”) with chalcopyrite mineralization in hole AW-23-106.
2023 GlobeNewswire, Inc., source