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Duluth Metals Continues To Identify New Mineralized Areas On Exploration Lands

Stocks in this article: DM

Area 3 - Northeast NLM Mineralization

In Northeast NLM Area 3, drilling has intersected multiple zones of Cu-Ni-PGE sulfide mineralization. The three holes completed to date, 13-DM-37, 13-DM-40, and 13-DM-43, were all collared in mineralization. 13-DM-37 and 13-DM-40 were drilled to the north and vertically, respectively, and each intersected significant intersections of Cu-Ni-PGE mineralized material. Following up on these initial results, 13-DM-43 was drilled down-dip (-50° inclination) in the NLM, attempting to parallel the mineralized zone to depth. In addition to the near-surface mineralization, 13-DM-43 intersected two additional mineralized zones at depth. Following these encouraging results, 13-DM-48 is drilling a more steeply inclined hole (-75° inclination) in the same zone. In addition to the near-surface mineralization, 13-DM-48 the highest grade Cu-Ni-PGE mineralization identified thus far in the NLM.

Highlights of drilling include: (True thickness unknown.)

  • 13-DM-037 returned a 89.5 foot intersection of 0.41% Cu with 0.142 g/t TPM
  • 13-DM-040 returned a 187 foot intersection of 0.44% Cu with 0.176 g/t TPM.
  • 13-DM-043 returned a 252 foot intersection of 0.38% Cu with 0.176 g/t TPM, including 18.6 feet of 0.57% Cu, 0.11% Ni, and 0.468 g/t TPM.
  • 13-DM-048 returned a 204.9 foot intersection of 0.37% Cu and 0.144 g/t TPM including 30 feet of 0.56% Cu, 0.11% Ni and 0.274 g/t TPM, as well as a 6 foot intersection of 2.059 g/t TPM and a 5 foot intersection of 0.702 g/t TPM.  Note: This hole is currently being drilled and additional assays are pending.
    Full assay results are shown in the following Table 1:
    Drill           From         To        Thickness                   Cu        Ni
    Hole            (ft)        (ft)         (ft)         Cut-off      %         %
                                                          @0.3%
    13-DM-037       16.2       105.7         89.5         Cu           0.41      0.09
                                                          @0.3%
    13-DM-040       6.5        193.7         187.2        Cu           0.44      0.10
                                                          @0.3%
    13-DM-043        8         213.3         205.3        Cu           0.39      0.07
                                                          @0.5%
    including      194.7       213.3         18.6         Cu           0.57      0.11
                                                          @0.3%
    13-DM-043      831.5       863.3         31.8         Cu           0.35      0.07
                                                          @0.3%
    13-DM-043      1791.7       1895         103.3        Cu           0.34      0.07
                                                          @0.3%
    13-DM-043       1935       1996.3        61.3         Cu           0.49      0.09
                                                          @0.5%
    including      1948.5      1982.5         34          Cu           0.60      0.11
                                                          @0.3%
    13-DM-043      2047.8      2082.6        34.8         Cu           0.45      0.09
                                                          @0.3%
    13-DM-048       23.7       228.6         204.9        Cu           0.37      0.08
                                                          @0.5%
    including       121         151           30          Cu           0.56      0.11
                                                          @0.5
    13-DM-048      828.4       834.4           6          g/t TPM      0.79      0.18
                                                          @0.5
    13-DM-048       853         858            5          g/t TPM      0.15      0.02
   
    (Table continued)

    Drill          Pt         Pd         Au         TPM
    Hole          g/t        g/t        g/t        g/t

    13-DM-037    0.038      0.075      0.030      0.142

    13-DM-040    0.052      0.091      0.033      0.176

    13-DM-043    0.046      0.079      0.035      0.161

    including    0.134      0.241      0.094      0.468

    13-DM-043    0.025      0.050      0.021      0.096

    13-DM-043    0.024      0.066      0.024      0.113

    13-DM-043    0.045      0.118      0.040      0.202

    including    0.054      0.136      0.044      0.234

    13-DM-043    0.037      0.100      0.038      0.175

    13-DM-048    0.035      0.076      0.033      0.144

    including    0.068      0.145      0.060      0.274

    13-DM-048    0.543      1.080      0.436      2.059

    13-DM-048    0.405      0.275      0.022      0.702

    Note - 13-DM-048 is currently being drilled and additional assays are pending.

Area 4 - Bogberry Lake Mineralization along the eastern edge of the SKI

Drilling in Area 4 targeted a flat-lying conductive anomaly identified in an airborne geophysical survey. Drilling identified a flat-lying zone characterized by a graphitic layer overlying chalcopyrite mineralization. The zone has been intersected by all seven holes completed to date. The mineralization is hosted by anorthositic wallrock adjacent to the eastern margin of the SKI, and is characterized by a different tenor from most other mineralization seen thus far in the SKI. Mineralization corresponding to the main conductive body is extremely low in PGEs, however 13-DM-36 in the northern part of the area returned higher grade PGEs, and to the south drilling and rock sampling has found PGE-enriched zones. These results suggest mobilization and fractionation of sulphidic Cu-Ni-PGE bearing fluids into the anorthositic wallrock of the SKI, and highlight the potential for high grade PGE mineralization in the wallrock of the mineralized SKI.

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