Corazon Mining Ltd's (ASX:CZN) first phase 2021 drilling campaign at Lynn Lake Nickel-Copper-Cobalt Sulphide Project in Manitoba Province, Canada, has intersected favourable host rocks and extensive indications of magmatic nickel-copper sulphide mineralisation.
The company completed three holes for a total of 1,482 metres, resulting in a successful first-pass test of a new target area west of the Fraser Lake Complex (FLC).
Drilling has also confirmed MobileMT’s effectiveness in identifying areas most favourable for magmatic nickel-copper-cobalt sulphides at Lynn Lake.
“Similar size to Lynn Lake mining centre”
Corazon managing director Brett Smith said: “The aerial MobileMT geophysics identified a large area of conductance, previously not recognised as prospective for nickel-copper sulphides.
“Our first round of drilling in this area intersected the right rocks and some good magmatic sulphides that enhances the potential of the target area.
“Now, with the detailing of Downhole Electromagnetic Geophysical Survey (DHEM) conductors of a good size, that support the MobileMT interpretations, we have expectations that this large conductive trend to the west of the Fraser Lake Complex has the makings of a nickel-copper sulphide target area similar in size to the Lynn Lake mining centre.”
Hole #24 drill target
Hole #24 was the first-pass test of the MobileMT conductive trend and intersected good widths of favourable gabbroic rocks, with strong indications of magmatic sulphides.
The area tested was strongly sheared, indicating long-lived tectonic activity.
A small zone of strong sulphide mineralisation interested by the hole was nickel poor, did not generate any in-hole conductance from DHEM and is believed to be the result of remobilisation of sulphide along faulting/shearing.
The company believes this sulphide mineralisation is potentially related to the pipe-like/fault-controlled conductive trend identified by the small conductors 24A, 24B and 24C.
Conductor 24D is more representative of the size of a mineralised body being tested for at this site, and at a size of 96 metres by 56 metres, it supports the MobileMT anomaly and provides a definitive drill target for the area.
Holes #26 and #29
Hole #26 trended off-target and the DHEM of this hole failed to identify any conductors of note but due to the hole's deviation, this area has yet to be adequately tested and follow-up work is required.
Hole #29 tested the strong South Pipe conductor around two kilometres south from holes #24 and #26.
Results from this drilling are generally inconclusive, however, the company believes the South Pipe area remains very prospective and additional work is required to advance this target.
The target model for the South Pipe is the high-grade EL Deposit in the Mining Centre.
Notably, the high-grade nickel-copper-cobalt sulphide breccia intersected at depth (the EL Deeps discovery - 2011) could not be detected using DHEM from drill holes close by, despite displaying in-hole DHEM conductance.
Hole #23 and #18
Hole #23 is one of the three holes that have tested the area west of the FLC within defined high-conductance trends identified by the MobileMT.
Two off-hole DHEM conductors have been defined, the largest of which is 84 metres in strike and is traced to at least 287 metres in depth extents.
These conductors are on the southern margin of the MoibleMT conductive trend, striking in line with a high priority MobileMT target, north of hole #23, that has yet to be drill tested.
Hole #18 drilled in 2018 targeted a magnetic anomaly west of the Matrix Trend and the new DHEM completed on this hole has identified three off-hole conductors and one in-hole conductor.
Conductors 18A and 18C represent good magmatic nickel-copper sulphide targets.
DHEM ongoing
With drilling now complete, Corazon is conducting a DHEM program of holes on this phase and previous phases of drilling.
DHEM will more accurately define conductive bodies close to drill holes, within larger areas of anomalism defined by the aerial surveys.
To date, DHEM has been completed on five holes and identified 10 new conductors of substantial size - which may represent sulphide bodies.
These anomalies will be priority targets for the next phase of drilling and underpins the potential for the entire conductive trend, identified by MobileMT, to the west of the FLC.