The Delta-2 project is located roughly 35 kilometers southeast of the town of Chibougamau, Quebec, which provides most services necessary for mineral exploration. The property consists of 363 claims covering, 194 sq kilometers in the La Dauversière, Queylus, Dollier, Charron and Lemoine Townships. Access to the property is via paved highway 167 which crosses the western portion of the claim blocks along with a network of gravel roads and existing trails. A CN railway track crosses the western portion of the claim block along with provincial power lines to support any future operations.
This region is a very friendly mining jurisdiction with an abundance of infrastructure and manpower to support the mining industry. Historically, the Chibougamau area produced 1.6 billion pounds of copper and 1.2 million ounces of gold. Additionally, The Chapais mining camp has produced 1.1 billion pounds of copper, 800,000 ounces of gold and 8.2 million ounces of silver.
Delta has acquired the exclusive right to earn a 100% interest in the 323 claims covering 172 sq kilometers. In addition, in 2021, the company also acquired the exclusive rights to earn a 100% interest in 40 contiguous claims covering an additional 22 sq kilometers from Cartier Resources.
The Delta-2 property has excellent potential for both gold-rich Volcanogenic Massive Sulphide (VMS) deposits and magmatic-hydrothermal gold deposits which are both highlighted in the Mineralization section below.
REGIONAL STRUCTURAL FEATURES AND GEOLOGY
Volcanic Cycles
The Delta-2 property is located at the NE end of the Abitibi Volcanic Belt, which is part of the Caopatina-Desmaraisville segment that is delimited by the Kapunapotagen Fault to the north, the Guercheville Fault to the south, the Grenville Front to the east and the Lapparent massif to the west.
In the Chibougamau district, three (3) volcanic cycles are identified. All three consist generally of mafic volcanics (massive to pillowed) of tholeiitic affinity at their base, overlain by intermediate to felsic volcanics of transitional to calc-alkaline affinity.
VOLCANIC CYCLE I (2798-2790 Ma): This is the oldest volcanic cycle and consists of the Chrissie Formation. Rocks of the Chrissie Formation comprise basalts that are overlain by a sequence of intermediate to felsic volcanics.
VOLCANIC CYCLE II (2760-2726 Ma): The base of volcanic cycle II consists of the Obatogamau Formation which comprises a thick sequence of massive to pillowed basalts (often feldspar phyric) with thin, discontinuous horizons of felsic volcanic rocks. The Obatogamau Formation is overlain by the Waconichi Formation consisting of felsic volcanic rocks of intermediate to calc-alkaline affinity.
VOLCANIC CYCLE III (2724-2717 Ma): Volcanic cycle III consists of andesitesand basalts of the Bruneau Formation at its base, overlain by felsic volcanics and volcaniclastic rocks of the Blondeau Formation. Rocks of the Blondeau Formation are well known in the region for their association with VMS deposits.
OVERLYING SEDIMENTS (2704-<2692 Ma): Unconformably lying at the top of the volcanic sequence are the Hauy and Stella Formations which consist of clastic sedimentary units ranging from mudstones to polymictic conglomerates. These sedimentary rocks are typically spacially associated with regional deformation zones along which sedimentary basins formed during dip-slip movements (i.e. they are often referred to as syn-tectonic).
REGIONAL DEFORMATION HISTORY
Phase 1) The earliest evidence of deformation in the area consists of folds with axial traces trending NNW-SSE to NS. The relative age of this folding is unclear, but it appears to be pre-to syn-tectonic. It should also be noted that, except for the Henderson-Portage structure (045°/60°SE) most of the deposits in the Chibougamau Mining district are located on NW-SE-trending structures.
Phase 2a) Regional deformation is characterized by a strong EW-trending, generally steeply dipping foliation which is axial planar to isoclinal folds. Extensive EW-trending ductile shear zones also formed during this phase of deformation. These intense and often wide zones of deformation are believed to have formed with reverse movements. This phase of deformation is believed to be due to a NS compression.
Phase 2b) EW-trending structures are crosscut by sub-vertical, NE-SW-trending deformation zones with associated foliation. These structures formed initially with sinistral movements but have been reactivated during later phases of deformation. These structures are believed to have formed late during the second phase of deformation during NS-trending shortening.
Phase 3) Is characterized by a reactivation of the Phase 2b structures with a dextral sense of motion.
Phase 4) This last phase of deformation is characterized by NNE-SSW-trending faults with associated foliation but showing more brittle attributes. These structures are believed to have formed because of the Proterozoic collision of the Grenville Province and are more abundant in the eastern part of the region, at the Grenville Front. This phase of deformation would also have reactivated the Phase 2b structures with a dextral sense of motion.
LOCALIZED GEOLOGY
Figure 2: Regional Geology
The Delta-2 property covers the north-eastern contact of the syn-volcanic La Dauversière pluton (2720 Ma). The La Dauversière pluton has a tonalitic composition and is thought to be responsible for many gold occurrences in the area such as the Chevrier Zone (43-101 Resource of 10.8Mt @ 1.22 g/t Indicated and 6.3Mt @ 1.27 g/t Au Inferred) and the R-14 Gold Prospect which is situated on the Delta-2 Property.
Immediately north of the La Dauversière Pluton, in the southern half of the property, rocks consist of massive to pillowed basalts of the Obatogamau Formation (Volcanic Cycle II). The basalts are intercalated with thin horizons of intermediate to felsic volcanics and presumably, are overlain by felsic volcanic rocks of the Waconichi Formation.
The northern half of the property is shown by the Quebec Ministry of Energy and Natural Resources as andesites and basalts of the Bruneau Formation (lower unit of Volcanic Cycle III). In the NE part of the property, the Bruneau Formation rocks are overlain by the felsic and sedimentary rocks of the Blondeau Formation (Upper part of Volcanic Cycle III).
In the Chibougamau area, the contact between Volcanic Cycles II and III is very prospective for Volcanogenic Massive Sulphide mineralization. In fact, the past producing Lemoine Mine (1975-1983: 757 585 tonnes @ 9.52% Zn, 4.18% Cu, 4.56 g/t Au and 82.26 g/t Ag), a small but very high grade, is located approximately two kilometres north of the property boundary, at that contact. A strike length of over 15-20 kilometres of this prospective contact is located on the Delta-2 property.
Stratigraphy is generally EW-trending and turns NE-SW in the eastern part of the property, generally wrapping around the more competent rocks of the La Dauversière and Boisvert plutons.
Extrusive rocks of the property are intruded by a few small syn-volcanic mafic sills and dikes and felsic dikes that are genetically linked to the La Dauversière Pluton (Faure, 2012) and spatially associated with the R-14 gold prospect.
MINERALIZATION
There are two types of mineralization prospects on this property being targeted by Delta.
The firstof which are Volcanogenic Massive Sulphide (VMS) deposits, which are believed to be associated with the contact between Volcanic Cycle II and III. For context, Lemoine is an example, located approximately 2 kilometres to the north of the Delta-2 property boundary. The Lemoine mine produced 757 585 tons grading 9.52% Zn, 4.18% Cu, 4.56 g/t Au and 82.26 g/t Ag, placing it within the top 1% of all VMS worldwide in term of grade. The beauty of VMS deposits is that they generally form in clusters and given the proximity to Lemoine, just two kilometers to the north of Delta-2’s property, Delta holds very highly prospective ground.
Additionally, at the Dollier Option, , are the Guillaume-Cartier and Delinel Gold prospects; two additional gold-rich occurrences showing volcanogenic massive sulphide affinity. Both prospects consist of gold-bearing, concordant lenses of disseminated to semi-massive pyrite-pyrrhotite with minor amounts of chalcopyrite and sphalerite. Drill hole intercepts of 27,52 g/t Au over 1 m; 4,77 g/t Au over 1 m; 1,04 % Cu over 1 m; 11,92 g/t Au over 1,0 m; 6,65 g/t Au, 7,3 g/t Ag et 1,0 % Cu over 0,3 m; 13,05 g/t Au over 1,2 m, are reported at Guillaume-Cartier.
The second type of mineralization they are after on the Delta 2 project are Gold Hydrothermal systems or a typical greenstone belt gold intrusive deposit, like the past producing Joe Mann Mine which produced 1.17 Moz grading 8.26 g/t Au, 607 k oz of silver @ 5 g/t and 28.7 M lbs of copper @.25% Cu or the Chevrier deposit to the south west which holds an indicated and inferred resource of 680k oz Au grading 1.23 g/t and an inferred resource of 232k oz Au grading 1.62 g/t. There are plenty examples of these types of deposits throughout the Abitibi region that one could draw comparison to and Delta 2 could hold similar types of deposits.
The most important gold prospect at the Delta-2 Property consists of the R-14 Gold Prospect which is spatially associated with the Queylus deformation zone and a felsic dike swarm associated with the La Dauversière Pluton. At R-14, exceptional gold values of up to 142.29 g/t Au over core length of 2.44 metres have been intersected in the early 1980’s by Corner Bay Exploration (Brunelle, 1983 quoted by Faure, 2012). The property was later worked by D’Arianne Resources who also reported significant results in channel and drill samples.
Although the R-14 Gold Prospect is documented as hosted by the Queylus Deformation zone, Faure (2012) has documented a discordant alteration halo of over 3.5 x 1.1 kilometers surrounding the mineralized zone. A similar alteration zone of over 4×1 kilometers is also documented west of the R-14 gold prospect. The westernmost part of this alteration zone starts at the La Dauversière pluton contact.
Figure 3 – New Discovery Location
EXPLORATION HISTORY
Small scale exploration work has been carried-out since the 1950s on parts of what is now the Delta-2 property. Past exploration work consisted of prospecting, stripping, geophysical surveys and diamond drilling campaigns on small areas of the property. More focussed exploration was carried-out following the completion of an electromagnetic (EM) airborne survey (INPUT MK VI) flown by the Québec government in 1977. These government surveys prompted the staking of a number of small properties to test the anomalies by ground geophysics and eventually by drilling. This exploration work was carried-out between 1977 and the early 1980s and consisted of small ground EM surveys to better locate the anomalies in the field, followed by shallow drill holes (typically less than 100m in length). The great majority of this work was carried-out in the NE portion of what is now the Delta-2 property near the past producing Lemoine Mine (757 585 tons grading 9.52% Zn, 4.18% Cu, 4.56 g/t Au and 82.26 g/t Ag). Nevertheless, many large areas of the Delta-2 property remain unexplored.
By far, the largest historical exploration program at Delta-2 was carried-out at the R-14 Gold prospect in the southern portion of the property. The following section presents a short history of work completed on the R-14 prospect.
R-14 Showing
From 1975 to 1979, Rio Tinto Canadian Exploration Ltd. conducted geophysical surveys, prospecting and mechanical trenching work on 14 claims. Twenty-one (21) drill holes totalling 2,610 m were then completed to test the geophysical anomalies. Best results included:
R14-3: 9.64 g/t Au over 0.61 m;
R14-6: 19.42 g/t Au over 1.37 m, including 33.59 g/t Au over 0.76 m
R14-7: 8.40 g/t Au over 0.91 m;
R14-8: 5.44 g/t over 2.74 m;
R14-10: 2.33 g/t Au over 1.22 m.
R14-11: 13.06 g/t Au over 0.76 m;
R14-13: 17.11 g/t Au over 0.91 m;
R14-14: 1.56 g/t Au over 0.91 m;
R14-15: 3.73 g/t Au over 0.91 m.
From 1979 to 1987, Corner Bay Exploration Ltd. (Corner Bay) continued exploration at R-14 with ground geophysics, soil geochemical surveys and mechanical trenching. The company reported up to 129.08 g/t Au over 2.43 m from channel sampling.
In 1985, Corner Bay completed an additional 15 drill holes in the R-14 area, for a total of 2,558 m and best result included:
6.69 g/t Au over 0.46 m,
5.91 g/t Au over 0.3 m,
4.35 g/t Au over 0.61 m and
3.42 g/t Au over 0.61 m.
The property was dormant until 2004 when Arianne Resources inc. (Arianne) optioned the property from two (2) local prospectors. Between 2004 and 2014 the company carried-out prospecting, ground geophysical surveys and mechanical trenching. Ten (10) drill holes were then completed for a total of 1,482 m, leading to the discovery of new mineralized zones grading 0.97 g/t Au over 10.1 m and 2.04 g/t Au over 1.4 m, in drill holes R14-08-06 and R14-08-07 respectively.
In 2014, 2736-1179 Quebec inc. optioned the property and completed 10 drill holes totalling 1,562 m Best results include:
54.3 g/t Au over 0.4 m (R14-14-205),
16.9 g/t Au over 0.5 m (R14-14-204) and
5.49 g/t Au over 0.8 m (R14-14-203).
An additional 37 infill drill holes were completed the year after for a total of 5,858 m yielding no additional resource.
The property laid dormant until Delta’s option of the Delta-2 property and a very large land position spanning from the R-14 prospect to within 2km of the past producing Lemoine Mine.
Table of significant historical occurrences at the Delta-2 property.
Current Exploration Work
2019 Exploration work
In late 2019, three weeks were spent by Delta on geological mapping and prospecting. The initial two weeks were devoted to due diligence work prior to the property acquisition. Two new gold occurrences were discovered during the course of these three weeks (i.e. the Due Diligence Occurrence: up to 55.80 g/t gold in grab samples and the Snowfall gold occurrence up to 11.45 g/t gold in grab samples).
2020 Exploration work
In January 2020, a Helicopter Borne VTEM survey covering the central part of the property,
In February 2020, a Drone Borne high resolution magnetic survey in the southern part of the property and In February and March 2020, “Stitching” and reinterpretation of high-resolution surveys from the area producing a high-resolution geophysical map that allowed Delta geologists to reinterpret the geology of the property and more importantly, the location of the Waconichi Formation.
Figure 4 – Total Mag Map
In February and March 2020, a map of VTEM electromagnetic conductors was also produced to outline potential VMS targets. Short, isolated and conformable conductors that reflect the typical strike length of VMS deposits were then selected for field follow-up. No less than 30 conductors that have never been drill-tested or poorly-tested were selected for follow up.
During the summer and fall of 2020, an extensive field program of geological mapping, sampling, prospecting, and mechanical trenching, ground-proofing of conceptual gold targets and VTEM anomalies. Both the Snowfall and Due Diligence gold occurrences, discovered in 2019, were expanded with mechanical trenching with best assay results are summarized in the table below:
2021 Exploration work
From January to March, 2021, Delta completed 18 drill holes for a total of 2,726.5 metres at the Delta-2 property. Drill holes 21 to 25 and 30 and 31 were aimed at VMS targets while drill holes 26 to 29 and 32 to 37 were aimed at gold targets.
Figure 5 – Drill target map
Drilling of the gold targets culminated with the new Oli Gold discovery. Significant results are shown below:
The mineralized zones consist of quartz-carbonate-tourmaline-fuschite veins with up to 10% pyrite clusters, and disseminated pyrrhotite, chalcopyrite, sphalerite, and visible gold. Drilling and surface mechanical trenching now suggest that these veins are trending between 060 azimuth with a dip of approximately 65 degrees towards the south. The quartz veins are associated with felsic and mafic dikes. The mineralization is located approximately one kilometre north-east of the R-14 Gold prospect (figure D2-3).
During the summer of 2021, Delta completed a gravimetric survey covering a 4.5 square kilometer area. The objective of the survey was to outline large, buried sulphide masses which have a higher density than their host rocks. Three residual gravimetric anomalies of 0.6 mgal were detected at the core of a syncline affecting the favourable sulphide-bearing horizon. These targets will be drill tested in the fall of 2021 or early 2022.
During the summer and fall of 2021, Delta completed a program of geological mapping, sampling, prospecting, and mechanical trenching. The program culminated in the discovery of the Lone Pine Gold Occurrence where grab samples returned 18.8 and 21.1 g/t Au (channel sampling results are pending). This geological mapping program also led to a better understanding of the structural controls and geometry of the gold mineralization. With structures trending 020 azimuth becoming gold targets as well as the structures trending at 060 azimuth.
Figure 6 – Prospective targets
In June 2021, Delta completed three drill holes for a total of 585 metres. The objective of the drilling was to test the depth extent of the OLI gold vein. The OLI vein was not intercepted but the host structure was; suggesting continuity.
During the months of November and December 2021, Delta completed sixteen (16) drill holes and deepened drill hole D2-21-27, for a total of 2709 metres. The drilling program was aimed at gold targets between the OLI and R-14 gold occurrences on two newly defined structures. The structures and some quartz-ankerite-tourmaline veins were intersected during the course of the program, in significant altered structures. All results from this program are still pending.
CONCLUSION
The Delta 2 Project is a highly prospective exploration property with major potential upside. The current campaign currently already underway is set to test 30 high priority VTEM targets showing geophysical signatures typical of VMS deposits as well as 3 deep seeded gravity anomalies. In total, there are 36 drill holes planned for 7,400m, starting with the most prospective targets, the company is intent on finding a Lemoine 2.0. It would be wise to keep a close eye on Delta as hitting a like VMS target could completely change the fortunes of the company and surge the share price. Stay tuned!
I am a 3rd generation miner who was born and raised in the silver capital of Canada, Cobalt, Ontario. For the last 10 years I have been invested in the mining sector and as a retail investor found it difficult gathering information on companies of interest. For this reason we created Insidexploration.com as a means to share our due diligence with investors all around the world.
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Currently we have 2 porphyry systems identified by @GoldspotD at the #ReyLake & #LuckyMike areas which need further drilling. In addition, we now have over 20 target areas to focus on, giving the 120km² Project potential to host a cluster of deposits.
While expanding the roads to access higher up the mountain, @ResourcesWalker $WRR exposed a 1000 foot wide section of alteration they now call the cut. What's cool is that this system can be traced from the mill up to 8,500 feet!
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