The Delta-1 Property is located 50 km west of the City of Thunder Bay along the Trans-Canada highway and within the Thunder Bay Mining Camp. The property is comprised of 245 contiguous unpatented claims covering 4,495 hectares or approximately 45 square kilometres of gold bearing targets. The company has already outlined a gold zone of 450m long and 20m wide, extending from surface to a vertical depth of 150m. This zone remains open in all directions and is known to contain grades of approximately 1 g/t Au at the core of a gold halo grading 0.2-0.4 g/t Au over 100-150m in width. This has been outlined by 1,680m of drilling. In addition to the Eureka Gold Zone, a highly anomalous gold-in-till dispersion trail points to a one-kilometre strike length along the Shebandowan Structure, situated just north of the Eureka Gold Zone.
The Shebandowan Structural Zone is a deep-seeded structure that is characterized by intensely deformed rocks, swarms of intrusive units and locally extensive zones of intense carbonate, sericite and talc alteration. In excess of 5 million ounces of gold deposits are hosted along a 100-kilometre strike length of the Shebandowan Structural Zone including the low-grade – high-tonnage, multimillion-ounce Moss Lake gold deposit 50 km west of the Delta-1 Property.
Delta is currently is working towards obtaining a 100% interest in the project after an agreement was reached to option the property on October 2nd of 2019. The property will remain subject to a 1.75% NSR Royalty which may be re-purchased in 2 phases. The initial 0.75% will need to be executed within seven years of the signing of the agreement for $500,000 and the remaining 1% Royalty can be purchased at anytime after the first half of the royalty has been acquired. Additionally, there are five legacy claims on the property that are also subject to NSR Royalties ranging from 0.5% to 1% from an underlying agreement. Delta has already bought back 50% of this royalty and has the first rights to purchase the remaining 50% for the sum of $50,000 at anytime.
The project area lies in the north-central portion of the Shebandowan greenstone belt in the Superior structural province of the Canadian Shield which contain volcanic-sedimentary units that are bounded to the south by granitic terrain and to the north by the Quetico subprovince. These two distinct supracrustal rock suites are known as the Greenwater and Shebandowan assemblages and are within the Shebandowan Belt (See Figure 3) which have a close spatial association with numerous gold occurrences that can be found throughout the Shebandowan, Wawa and Abitibi Greenstone belts. Interestingly, the clastic sedimentary rocks of the Shebandowan assemblage are often referred to as “Timiskaming type” because of their similarity to the Timiskaming group rocks of the Abitibi greenstone belt.
There are two main deep seeded structural features on the Delta 1 Property, the first being noted above as the contact between the Greenwater assemblage and the Quetico subprovince along the Shebandowan Structural Zone and the second being the Saganaga Structural Zone which is noted as a continental-scale shear zone striking over 200 kms as far south as Minnesota (See Figure 3). More than 5 million ounces of gold have been found along a 100-kilometre strike length eastward from the Moss Lake Deposit to the Delta-1 Property (See Figure 3). Also worth noting, are the Crayfish Creek and Posten’s Faults which are two late-stage dextral sense structural zones that appear to have reactivated the Shebandowan Shear Zone leading to several mineralizing events.
Structurally, the property is located at the intersection of the Shebandowan, Saganaga and Posten’s faults and covers a 17-kilometre strike extent of the favourable Shebandowan structural zone.
The Shebandowan assemblage rocks are found north of Highway 11 and are generally dominated by clastic metasedimentary rocks, including conglomerate, sandstone, siltstone and mudstone. These rocks are interlayered with distinctive trachyte and trachyandesite flows that commonly display a patchy red and green appearance and tend to be amphibole-phyric. These rocks are intruded by feldspar-phyric felsic to intermediate dikes, gabbroic intrusions, and lamprophyre dikes.
The Greenwater assemblage rocks predominantly occur south of Highway 11. They are generally mafic to intermediate metavolcanics (including massive and pillowed flows) with local ultramafic flows. These metavolcanic flows are intercalated with thin horizons of graphitic mudstone, gabbro sills and dikes, sulphide-bearing chert, jasper-magnetite, and chert-magnetite iron formation all of which translate into highly conductive zones.
Foliation is moderately well-developed and generally strikes east-southeast with near-vertical dip. The rocks have been deformed into tight isoclinal folds with east-southeast striking axial planes. Shear zones that parallel the regional foliation occurs throughout and is especially well-developed along trends that coincide with the gold-mineralized zones. Also associated with these shear zones, within the Greenwater assemblage, are extensive zones of gold-bearing alteration consisting of intense ankerite, calcite and disseminated pyrite and arsenopyrite.
Gold mineralization at Delta-1 occurs as two distinct types: The Kasper, South, Creek and Mattawin gold occurrences are hosted by thin horizons of sulphidic and graphitic chert and chert breccia (perhaps sulphidic iron formations). At the Kasper gold occurrence, a banded iron formation is also observed. The rocks are ankeritized and silicified and characterized by an abundance of sulphide (dominantly pyrite with lesser arsenopyrite).
At the Eureka and Wedge Gold occurrences gold is associated with an organized stockwork of quartz-ankerite- pyrite veinlets ranging from 1mm to 3cm in width. Occasionally, fine grained disseminated visible gold is observed within the veinlets. Although visible gold is dominantly associated with the pyrite at the walls of the veinlets (Tremblay, 2021) specks of visible gold also occur in the central portions of the quartz veinlets.
In drill core, gold grade is directly proportional to the density of veinlets present. The presence of a single 1cm veinlet in the core can result in gold grades exceeding 1.0 g/t Au over a one metre interval.
Gold mineralization is late and the quartz-ankerite-pyrite gold veinlets crosscut every lithologies including the two types of breccia.
Host rock alteration consists dominantly of intense silicification, ankeritization and sericitization combined with trace to 2% disseminated pyrite and trace arsenopyrite. At surface, rocks are weathered a dark rusty brown and rock textures are completely obliterated. In drill core and in fresh surface, textures of the sandstone and feldspar-amphibole-phyric intrusive are locally recognized but typically also obliterated. The rock is massive, fine-grained, yellowish buff to pale grey with a common dusting of very fine-grained disseminated pyrite. Even without any veinlets present, the host rock typically contains highly anomalous gold of 0.2 g/t Au to 0.4 g/t Au.
Through exploration drilling, Delta has identified five generations of hydrothermal events as can be seen in Figure 6c:
1) Early, brecciated, white, crack-seal quartz-calcite veinlets (non mineralized),
2) Medium grey, aphanitic siliceous material brecciating the #1 veinlets and containing very fine
grained disseminated pyrite.
3) Crack-seal quartz-calcite-chlorite, opaque to translucent veinlets up to 1cm wide with very fine
grained disseminated pyrite.
4) Chlorite-pyrite “stylolite-style” seams, and
5) Late, generally tabular, dominantly calcite with quartz unmineralized veinlets.
The summary of historical work at the property is divided into the eastern and western portions of the property to better outline the work that has been carried out over the years.
Eastern Portion of the Property:
The Eastern portion of the property includes a broad area which incorporates the Gold Cache, Matawin, Eureka and Bylund gold occurrences while the Western Portion of the property includes the Kasper, Creek, West, and South gold occurrences.
1934: Trenching and diamond drilling on the north half of Lots 68 and 69, Concession A by Birch Bay Gold
Mines. Noranda Mines investigated mining claims adjacent to the Birch Bay property.
1936: Diamond drilling and trenching by Freeport Exploration Company.
1947–50: The Matawin Gold Mines property was examined by W.D. Neel, M.W. Bartley and T.W. Page.
1966: Self potential survey on a section of the area by Cliffs of Canada.
1970: Geological mapping and geophysical surveys by Noranda Mines Limited.
1972: Getty Mines Limited carried out a detailed program of ground VLF-EM followed by geological
mapping, sampling and one drill hole in the eastern portion of the property. Getty mapped an extensive
rhyolitic and dacite unit south of Highway 11 which corresponds to the alteration zones mapped during
this program. Getty documents south facing clastic sediments north of Highway 11 and north facing
volcanics south of the highway. An isoclinal fold is suggested to explain the facing reversal.
1979–81: Lynx Canada Exploration Limited completed five drill holes for a total of 442.5m aimed at a
graphitic and cherty horizon at the Matawin Gold occurrence. Best result: 2.17 g/t over 1.22m.
1985–87: Airborne magnetic and electromagnetic surveys, and a soil geochemical survey by Jalna
Resources Ltd. This property included the Dawson Road Lots claims, plus the adjacent Gold Cache (located immediately to the west) and Bylund properties (located immediately to the east).
1994–present: Prospecting, outcrop stripping, trenching, sampling and reconnaissance ground magnetic
and VLFEM surveys on the adjacent Gold Cache property by T. Kukkee, P. Kukkee and Gold Cache Inc.
1997–99: Freewest Resources and Greater Lenora Resources completed mechanical stripping, soil
geochemical surveys, ground magnetometer and induced polarization surveys, sampling, detailed
mapping and diamond drilling (5 holes) on the adjacent Bylund property.
2016–Present: Prospecting, sampling and outcrop stripping by D. Parker and B. D’Silva.
Western Portion of the Property
1940: M.W. Bartley examined and sampled numerous pits and trenches excavated on the claims of F.
Kaspar on the western portion of the property.
1944: Detailed mapping, sampling, and trenching by Sylvanite Gold Mines Limited.
1956: Three Brothers Explorations completed five drill holes for a total of 1,096m in the Shebandowan
River area. No assay results are presented.
1972: Johnson completed one drill hole of 151.5m at the property. No assays are documented.
1976: Line cutting, geological mapping, soil sampling, and ground magnetic and electromagnetic surveys
by Noranda Exploration Company Limited.
1982: Geological mapping by Noranda.
1983: Geological mapping, ground VLFEM survey, and trench sampling by Lacana Mining Company.
1984: Reconnaissance geological and geochemical surveys by Corporate Oil and Gas Co.
1988: Airborne magnetic and VLFEM surveys by JET Mining Exploration Inc.
1988: Geological mapping and soil geochemical survey by Noranda.
1996–97: Geological mapping, prospecting, and ground magnetic and induced polarization surveys by
Avalon Resources Inc.
1997: Geological mapping, prospecting, and ground magnetic survey by Battle Mountain Canada Inc.
2003–05: Diamond drilling (17 holes for 2690 m) and airborne magnetic and electromagnetic surveys by
RJK Explorations Ltd.
2016–2020: Prospecting, sampling, trenching and soil geochemical survey by D. Parker and B. D’Silva.
Only 42 drill holes have tested this 49 square kilometre property to date. Of these drill holes more
than half were aimed at Ni-Cu targets prior to 1972. The last drill program was aimed at two mineral
occurrences in 2003.
Shortly after optioning the property in October 2019, Delta completed a drilling program of six drill holes for a total of 1,009 metres. The objective of the drilling was to test the depth extent of gold values obtained by the optionee in surface trenching in 2018.
Intercepts of up to 0.2 g/t gold were obtained over core lengths of 137 metres within intensely silicified, ankeritized and sericitized sandstone including gold intercepts of 0.73 g/t Au over 22.0 metres and 0.64 g/t Au over 27.5 metres near surface.
Delta Till survey and Geological Mapping, Summer and Fall 2020
Delta Till survey and Geological Mapping, Summer and Fall 2020: Delta completed a property-scale till survey during the summer of 2020, consisting of 150 till samples and defined a dispersion trail of highly anomalous gold grains in till. The apex of this dispersion trail is nearly 1km in strike and suggests a bedrock gold source north of the Eureka gold occurrence (Figure 5).
Within the dispersion trail, 12 of 13 till samples were shown to contain 24 to 457 gold grains (in 10kg samples) with a proportion of pristine grains accounting for 78% to 98% of the total gold grain count. Also of importance is a line of till samples to the north, at Delta’s northern property boundary, which returned gold grain counts below background, thus confirming the bedrock source of the dispersion trail lies within the limits of the Delta-1 property.
As second gold-in-till dispersion trail is also observed three kilometres SE of Eureka and will be investigated in 2022 (Figure 8).
In the fall of 2020, Delta carried out a geological mapping, prospecting, and sampling program of the central-east portion of the Delta-1 property, covering an area approximately nine square kilometres which also covered all the gold occurrences known to date at Delta-1. A total of 187 outcrops or groups of outcrops were described and sampled. (See Figure 9)
The most significant conclusion of this work was to outline a large lithogeochemical gold halo exceeding 0.2 g/t Au over a minimum strike length of 1.2km and a minimum width of 300m, therefore significantly expanding the lithogeochemical gold halo that was previously defined during the 2019 drilling program (see figure 10).
Delta Drilling Program, Spring 2021:
Delta completed a total of 1,376 metres of drilling in eight NQ-size drill holes. The objective of the drilling was to:
Because of the logistics of crossing the Trans Canada Highway, drill holes D1-21-07, 08, 12 and 14 were drilled towards the north, underneath the highway. All these drill holes missed the mineralized zone altogether and as a result the gold in till anomaly remains unexplained.
Nevertheless, Delta’s 2021 drilling program extended the gold mineralized zone to a strike length of nearly 450 metres and a vertical depth of 150 metres. The zone strikes EW and dips 50 degrees towards the north. The gold zone is 100 to 180 metres in width with grades of 0.2 g/t to 0.4 g/t gold. Within that low-grade zone lies a 20m wide zone of ~1.0 g/t Au.
Location of the drill holes from 2019 and 2021 and best results of 2021 are shown below in figure 11.
The gold mineralization type deemed to have the most potential for a significant economic discovery at Delta-1 is observed at Eureka and Wedge and will be the focus of the company as they develop the property. There is excellent potential for higher grade zones as shown by intersections of up to 10.1 g/t Au over 1m in drill hole D1-21-07 as well as several other intersections ranging from 1.5 g/t Au to 5.05 g/t Au over 1m. The Delta team believes that the size and intensity of the mineralizing system point to a potentially sizeable economic gold deposit and warrants additional exploration in 2022. With good success on this project in the last few years, Delta will be looking to extend the strike, width and depth of the known mineral deposit and follow up exploration work to locate the bedrock source of the till samples which highlight more than a kilometer of strike.
Subject to a drill being available, Delta plans to be mobilized to the site in the spring- summer 2022 to take advantage of the frozen ground and drill approximately seven holes north of the Trans-Canada Highway, where the terrain is somewhat boggy during the summer months. In June, the drill will be mobilized again to complete an additional four drill holes south of the Trans-Canada Highway where the terrain is dry. Also in 2022, a short geological mapping, sampling program will be carried out in June, simultaneously with the second phase of the drilling program. Geological mapping and prospecting will focus on areas east of the Wedge Gold Occurrence and in the south-east portion of the property where till samples showed anomalously high gold-in-till.
For more information on Delta Resources please visit https://insidexploration.com/dlta/
– Bryant, J.G., 1972; Summary Report Geology, Dawson Road Lots Property, Thunder Bay District, Ontario., for Getty Mines Limited., 12p. 2 maps.
– Girard, R. and Burden, D., 2021; Glacial Sediments sampling program, Delta-1 project – Shebandowan Area, Ontario., IOS Services Geoscientifiques, for Delta Resources Limited, 205p.
– Parker, D.P., 2003; Summary Report of Phase II Drilling, Wedge Project, Shabaqua Area – Shebandowan Belt, Thunder Bay District, Ontario., RJK Exploration Ltd., 62p.
– Puumala, M.A., Campbell, D.A., Tuomi, R.D., Pettigrew, T.K. and Hinz, S.L.K. 2018. Report of Activities 2017, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District; Ontario Geological Survey, Open File Report 6338, 101p.
– Tremblay, L., 2021; Description pétrographique d’un échantillon de sondage, Projet Delta-1., IOS Services Geoscientifiques, for Delta Resources Limited, 23p.
– Delta Resources Website, Delta-1 Project page https://deltaresources.ca/delta-1/
– Delta Resources MD&A dated Nov 23 2021 which can be found on the company’s SEDAR Profile
– Reviewed, Edited Approved by Delta Resources, CEO, Andre Tessier