Kirkland Lake Discoveries Encounters Intense Alteration at Hurricane Intrusive Zone
Kirkland Lake Discoveries is pleased to announce the results from the thirteen drill holes totaling 3,376m that were completed to follow up on surface showings, mapping, prospecting and ground IP at the Hurricane Intrusive Zone. This fault-bounded zone is located on the KLD East Side (Figure 1) of the Company's Kirkland Lake project in Kirkland Lake, Ontario. The Company successfully intercepted wide zones of alteration, quartz veining +/- sulphide mineralization. This drill program was a progressive step toward understanding and unlocking the geological potential of the area.
Highlights of drilling:
- Highly altered zone with veining encountered at Whiskey Jack, with a four-metre zone of extremely bleached mafic volcanics (Figure 2)
- Whiskey Jack East drilling intercepted highly altered syenites and feldspar porphyry with intense quartz veining and increased mineralization associated below the redox boundary defined by the transition from magnetite to hematite
- The mineralized vein found at the Norwood showing was successfully intercepted at depth and contained visible gold indicating the continuation of the mineralized system at depth
- Mineralization at Jensen did not continue below surface
Whiskey Jack Summary
The Whiskey Jack zone at depth consisted of a wide, highly altered zone within mafic volcanics and gabbro. Alteration within the two holes consisted of strong sericite, calcite, and epidote alteration. Within these strongly altered zones, there was an increase in at least two generations of veining. One generation was observed to be wider intersections of quartz, carbonate veins + pyrite, while the other consisted of quartz carbonate stringers with interstitial hematite alteration. Sulphide mineralization consisted dominantly of pyrite, which in areas, was semi-massive. To a lesser extent, chalcopyrite was present.
Figure 2: Highly altered and bleached zone at Whiskey Jack. Hole KLD24-14 from 138.51 m to 155.7 m.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5701/210196_cc69693704923847_002full.jpg
Whiskey Jack East Summary
Whiskey Jack East drilling consisted of syenite to mafic syenite, with strong, pervasive potassic-hematite alteration. The top of the hole within the Whiskey Jack East zone was drilled into a magnetic high, which is interpreted to be related to the patchy magnetite observed throughout the interval. Further downhole, the magnetite transitioned into specular hematite, coincident with the boundary in the magnetics from high to low. This represents a redox front and a potential geochemical trap. A significant intersection of stockwork quartz veining was intersected (Figure 3), representing a wide fluid flow pathway. Although significant values were not intersected within this stockwork section, this significant fluid conduit warrants further follow-up.
Figure 3: Highly altered syenite with intense quartz veining at Whiskey Jack East hole KLD 24-11 from 249.39 m to 266.52 m
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5701/210196_cc69693704923847_003full.jpg
Norwood Summary
The Norwood showing was drilled to investigate multiple mineralized vein sets determined through surface grab samples and historic trenching. Hole KLD24-20 successfully intersected one of the mineralized veins, hosted within a mafic syenite and intercalated mafic volcanics. Within this vein intersection, fine-grained visible gold was noted establishing that surface mineralization extends to depth.
Figure 4: Hurricane Intrusive Zone geological map with drill collar locations and showings
Tags: Northern Ontario / Exploration / Gold / All Articles