Midland Exploration has announced the beginning of the first diamond drilling campaign on its wholly owned Mythril Cu-Au-Mo-Ag discovery.
Image: The Mythril discovery is located about 7 kilometres south of the Trans-Taïga road, James Bay Eeyou Istchee, Quebec. Photo courtesy of Exploration Midland Inc.
This campaign is planned to begin in the next few days. The drilling campaign will target a >2km long by hundreds of meters large series of dipole-dipole induced polarization (“IP”) anomalies that are coincident with Cu-Au-Mo-Ag surface showings and float fields discovered by Midland in 2018, as well as with strong Cu-Mo soil anomalies. This initial campaign will consist of 9 holes for about 2200 meters.
The Mythril discovery is located about 7 kilometres south of the Trans-Taïga road, James Bay Eeyou Istchee, Quebec. It is hosted in Archean rocks of the Superior province. In only nine days of prospecting in 2018, 11 new surface copper-gold-molybdenum-silver showings, and 2 molybdenum-only showings, were found, yielding values such as 2.74 % Cu, 0.44 g/t Au, 0.06 % Mo, 24.3 g/t Ag over 2.7 meters in channels on the Celeborn showing (open all directions). Fifty-seven (57) grab samples from mineralized outcrops along 2 km strike length returned an average of 2.03 % Cu, 0.48 g/t Au, 0.18 % Mo, 18.3 g/t Ag. One hundred and sixteen (116) mineralized floats were found, yielding an average of 1.92 % Cu, 0.87 g/t Au, 0.11 % Mo, 20.7 g/t Ag.
Note that grab samples are selective by nature and values reported are not representative of mineralized zones. The Cu-Au-Mo-Ag mineralized system is more than 2 kilometers long, based on surface showings and its full dimensions of the system are not known yet. There is no historical drilling on the project. Preliminary results of a dipole-dipole IP geophysical survey performed during the winter of 2019 indicate a large zone (>2km long, by hundred meters large) of anomalously high chargeability coupled with decreases of resistivity that are remarkably coincident with known Cu-Au-Mo-Ag mineralized showings and float fields, as well as with Cu-Mo soil anomalies
This more than 2 kilometers long IP anomaly, that combines both an increase of chargeability and a decrease of electrical resistivity, will be designated as the “main IP anomaly” in the following descriptions of drill hole targets.
Drilling targets
The first two drill holes of the campaign will target the western part of the main IP anomaly on line 3+00E, in an area where it is about 200 hundred meters large*, and coincident with a strong magnetic anomaly. Very strong and unexplained Cu soil anomalies are also found in that area (up to 0.12% Cu in soils). Two strongly mineralized floats found in this area in 2018 respectively yielded 4.15 % Cu, 0.27 g/t Au, 0.04 % Mo and 29 g/t Ag, and 2.99 % Cu, 0.13 g/t Au, 0.03% Mo and 47.6 g/t Ag (grab samples).
The next two holes will target the widest part of the main IP anomaly on line 6+00E, where it is almost 300 meters large*. The first hole will first test the Grey Havens showing at a shallow depth (up to: 9.22 % Cu; 0.99 g/t Au; 0.02 % Mo; 69.8 g/t Ag, in two outcrop grab samples). It will also test the Liv showing (5 outcrop grab samples, average 3.25 % Cu, 0.61 g/t Au, 0.12 % Mo, 29 g/t Ag, with up to 9.53 % Cu). The second hole on that same line will target the strongest part of that large chargeability anomaly and will be collared about 240 meters north of the first one.
The next hole will target the main IP anomaly on line 9+00E, where it is about 100 meters large*. It will also test the Eriador showing (19 outcrop grab samples, average 2.47 % Cu, 0.29 g/t Au, 0.13 % Mo, 22.1 g/t Ag, and up to 12.6% Cu) and the Misty showing (6 outcrop grab samples, average 1.53 % Cu, 0.31 g/t Au, 0.02 % Mo, 14 g/t Ag).
The main IP anomaly will also be tested on line 13+00E. The IP anomaly is about 200 meters large* in this location. A series of 11 angular floats that yielded an average of 1.48 % Cu, 0.67 g/t Au, 0.06 % Mo and 17.2 g/t Ag (grab samples) were found in the area in 2018. A quartz-molybdenite vein also returned 3.04 % Mo (Lorien showing). A second hole on that same line will test the northern part of the IP anomaly.
The next hole will be on line 18+00E. The main IP anomaly is about 75 meters large* there. It will also test the Legolas showing (grab sample from outcrop that yielded 4.89 % Cu, 1.5 g/t Au and 46 g/t Ag), and a field of 6 angular floats that yielded an average of 2.28 % Cu, 0.81 g/t Au, 0.11 % Mo and 20.8 g/t Ag in grab samples.
The final hole of the campaign is planned on line 20+00E. It will test a part of the IP anomaly that is associated with the Celeborn showing, that yielded 2.74% Cu, 0.44 g/t Au, 0.06% Mo, and 24.3 g/t Ag over 2.7 meters in channels (open in all directions). In the immediate area around the showing, 22 floats were found in 2018 that yielded an average of 4.2 % Cu, 0.95 g/t Au, 0.19 % Mo and 40.9 g/t Ag, in grab samples.
Quality control
Exploration program design and interpretation of results is performed by qualified persons employing a Quality Assurance/Quality Control program consistent with industry best practices, including the use of standards and blanks with every 20 samples. Rock samples on the project are assayed for gold by standard 30-gram fire-assaying with inductively coupled plasma atomic emission spectroscopy (ICP-AES; Au-ICP21) or gravimetric finish (Au-GRA21) at ALS Minerals laboratories in Vancouver, British Columbia. All samples are also analysed for multi-elements, using four-acid ICP–AES method (ME-ICP61), also at ALS Minerals laboratories in Vancouver, British Columbia. Samples that exceed 1% copper, zinc, molybdenum or nickel are reanalyzed by four-acid ICP-AES optimized for high grades.
Geophysical data presented in this release are preliminary. Inversions were performed by geophysicists from Géophysique TMC.
Source: Company Press Release