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Last updated on April 18, 2014 at 13:45 EDT

Duluth Metals identifies two new mineralized areas on exploration lands

February 5, 2013

TORONTO, Feb. 5, 2013 /PRNewswire/ - Duluth Metals Limited (“Duluth”) (TSX: DM) (TSX:DM.U) is pleased to present early results from the exploration program
currently underway on Duluth’s 100% owned exploration properties in the
Duluth Complex, northeast Minnesota.  The program has successfully
identified two new mineralized areas, one consisting of platinum group
element (“PGE”) mineralization on the East Shore properties which cover
the eastern margin of the South Kawishiwi Intrusion (SKI), and a second
consisting of copper-nickel-PGE mineralization within the Nickel Lake
Macrodike (NLM). The program has consisted of geologic mapping,
geochemistry, geophysics, and initial drill testing of targets on the
properties which cover 8,850 acres of favorable geology adjacent to
Duluth’s Twin Metals Project (Fig. 1).

“It’s exciting that at the very early stages of our exploration program
we have confirmed mineralization in hotter portions of the geological
system upstream from the multi-billion ton Twin Metals Minnesota
deposits,” commented Dean Peterson, Senior Vice President-Exploration
of Duluth Metals.

Vern Baker, President of Duluth Metals commented, “We are pleased with
the early drill results which have confirmed sulphide mineralization in
two key areas of this massive geological system. We will be continuing
with further extensive drilling in these two areas of mineralization.
One of the key focal points of the next phase of drilling is the East
Shore area where higher grade PGM values have been returned from both
surface outcrop and preliminary drilling. In addition, the drilling in
the Nickel Lake Macrodike has identified mineralization somewhat
different to the known mineralization of the adjacent Twin Metals
Project. We are currently following up with down-hole EMP geophysical
surveys and intend to continue drilling into the spring with holes
aimed at higher grade targets within deeper sections of the NLM.”

Duluth is also pleased to report that Alan King, one of the world’s
foremost geophysicists is being retained to consult with the Duluth
Exploration team.  Mr. King’s extensive worldwide expertise on
nickel/copper geophysics will be a valuable addition to Duluth’s
exploration efforts.

Area 1 – East Shore PGE Mineralization

The first new area of mineralization comprises PGE mineralization along
the eastern side of the SKI and within the adjacent anorthositic rocks
on the East Shore Property as shown in Figures 1 and 2. Geological
mapping and geochemical sampling of outcrops and angular boulders this
summer identified mineralization along a 2000 foot strike length zone
of the eastern contact of the SKI. Outcrop grab sampling returned TPM(1) values up to 3.5 grams/tonne (g/t) TPM, and float sampling up to 7.7
g/t TPM (Fig. 2a).  Significantly, some of the samples are
characterized by high PGE to copper sulphide ratios. The occurrence of
this mineralization suggests the potential for high-grade
structure-hosted PGE mineralization, which has not been previously
recognized in the Duluth Complex.

Initial drilling in the East Shore area has confirmed anomalous TPM
values in a flat-lying zone in several holes with highlighted drill
intercepts (see Fig. 2b) of PGM rich material as follows: (True
thickness is estimated at about 100% of core length.)

        --  12-DM-007 returned a 11.7 foot intersection of 3.28 g/t TPM
            including 7.3 feet of 4.95 g/t TPM
        --  12-DM-006 returned a 13.9 foot intersection of 1.63 g/t TPM
            including 4.8 feet of  2.96 g/t TPM

Full assay results are shown in the following Table 1:

     __________________________________________________________________
    |Drill Hole|From |  To |Thickness| Cu | Ni |  Pt |  Pd |  Au | TPM |
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |          |(ft) |(ft) |   (ft)  |(%) |(%) |(g/t)|(g/t)|(g/t)|(g/t)|
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |12-DM-006 |187.9|201.8|   13.9  |0.24|0.08| 0.41| 1.05| 0.18| 1.63|
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |including |192.2|197.0|    4.8  |0.50|0.16| 0.75| 1.81| 0.41| 2.96|
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |          |     |     |         |    |    |     |     |     |     |
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |12-DM-007 |187.9|199.6|   11.7  |0.04|0.02| 0.69| 2.48| 0.10| 3.28|
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |including |187.9|195.2|    7.3  |0.02|0.02| 1.03| 3.83| 0.09| 4.95|
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|

Area 2 – Nickel Lake Macrodike Mineralization

A systematic surficial geochemical survey in the NLM has defined a
series of pronounced base-metal (Fig. 3a) and precious-metal (Fig. 3b)
geochemical anomalies.  These anomalies highlight the sulfide-bearing
nature of the NLM and appear to be sourced from discrete varieties of
mapped sulfide-bearing bedrock located on the northern margin of the
NLM. The significant base and precious metal geochemical anomaly in
Section 20 is currently being drill tested.

Within the NLM, a significant thickness of disseminated Cu-Ni-PGE
bearing sulphide has been identified in the initial drilling. Notably,
the mineralized material is unlike mineralization in the nearby Spruce
Road and Maturi Deposits, having an elevated Cu:Ni ratio of 5:1. The
presence of this mineralization in the NLM confirms the existence of
sulphide-bearing magmas in the feeder conduit to the mineralized SKI. 
The high Cu:Ni ratio suggests sulphide fractionation took place within
the NLM, and highlights the possibility that the system may contain
zones of concentrated Ni-rich sulphide minerals in the feeder conduit.

Significant widths of mineralization in the NLM area have been
identified both in surface outcrop and in two drill holes to date (Fig.
4).  Highlights from the drilling to date are as follows: (The
mineralized body is interpreted to dip at about 60° to the southeast.
True thickness is estimated at about 95% of core length).

        --  12-DM-017 returned a 243.4 foot intersection of 0.38% copper,
            0.08% nickel and 0.12 grams/tonne (g/t) TPM, including a 30
            foot intersection of 0.50% copper, 0.10% nickel and 0.13 g/t
            TPM.
        --  12-DM-018 returned a 291.0 foot intersection of 0.30% copper,
            0.06% nickel and 0.17 g/t TPM, including a 23.7 foot
            intersection of 0.50% copper, 0.09% nickel, and 0.33 ppm g/t
            TPM.

Full assay results are shown in the following Table 2:

     __________________________________________________________________
    |Drill Hole|From | To  |Thickness| Cu | Ni | Pt  | Pd  | Au  | TPM |
    |          |(ft) |(ft) |  (ft)   |(%) |(%) |(g/t)|(g/t)|(g/t)|(g/t)|
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |12-DM-017 |91.1 |334.5|   243.4 |0.38|0.08|0.03 |0.06 |0.03 |0.12 |
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |including |196.0|226.0|   30.0  |0.50|0.10|0.03 |0.07 |0.03 |0.13 |
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |          |     |     |         |    |    |     |     |     |     |
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |12-DM-018 |113.4|404.4|   291.0 |0.30|0.06|0.04 |0.08 |0.04 |0.17 |
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|
    |including |380.7|404.4|   23.7  |0.50|0.09|0.10 |0.15 |0.08 |0.33 |
    |__________|_____|_____|_________|____|____|_____|_____|_____|_____|

Ongoing drilling efforts are aimed at demonstrating the continuity of
this mineralization on strike and at depth, as well as following this
mineralization to deeper sections of the NLM.  Future drilling efforts
within deeper sections of the NLM will focus on looking for higher
grade mineralization analogous to that found in the Maturi Deposit and
potential concentrations of Ni-rich massive sulphide. Drilling the most
prospective area for potential concentrations of massive sulphide at
the mouth of the NLM will require summer road building, planned to
commence in the spring.

Duluth is continuing with an extensive drilling program into the spring
of 2013.  Currently there are two drills on the NLM mineralization area
and two drills on the East Shore PGM mineralization area.  Exploration
drilling discussed in this press release is shown on the maps in this
Press Release (Figures 1-4), which can also be found on the Company
website at www.duluthmetals.com under this press release.

About the Sampling

Duluth Metals adheres to a rigorous QA/QC program as a part of sampling
procedures throughout the drill program. Duplicate, blank, and
reference standards are inserted into the sample stream prior to
submittal the laboratory. Half core samples are crushed and pulverized
at ALS Minerals in Thunder Bay, Ontario, and then shipped to its
analytical facilities in Vancouver, British Columbia. Samples are
analyzed for Au, Pt, and Pd using a 30 gram fire assay with an ICP-AES
finish, and for Cu, Ni, and other trace elements using a four acid
(near total) digestion and a combination of ICP-MS and ICP-AES
finishes. Overlimits are re-analyzed using sodium peroxide fusion, acid
dissolution, followed by an ICP-AES finish. The remaining half core
samples are stored in Minnesota.

Till samples of approximately 1 kg were collected from the B-horizon and
submitted to ALS Minerals in Thunder Bay, Ontario. Samples were dried
and sieved to -63 micron, and analyzed for Au, Pt, and Pd using a 30
gram fire assay with an ICP-MS finish, and for Cu, Ni, and 46 other
trace elements using a four acid (near total) digestion with an ICP-MS
finish. Reference standards and field duplicates are submitted to the
sample stream prior to submittal to the laboratory, and internal
laboratory standards provide a further check on sample precision.

Phillip Larson, P. Geo. is the Qualified Person for Duluth Metals and
Senior Geologist for Duluth Metals, in accordance with NI 43-101 of the
Canadian Securities Administrators, and is responsible for Duluth
Metal’s technical content of this press release and quality assurance
of the exploration data and analytical results.

About Duluth Metals Limited

Duluth Metals Limited is committed to acquiring, exploring and
developing copper, nickel and platinum group metal (PGM) deposits.
Duluth Metals has a joint venture with Antofagasta plc on the Twin
Metals Project, located within the rapidly emerging Duluth Complex
mining camp in north-eastern Minnesota. The Duluth Complex hosts one of
the world’s largest undeveloped repositories of copper, nickel and
PGMs, including the world’s third largest accumulation of nickel
sulphides, and one of the world’s largest accumulations of polymetallic
copper and platinum group metals. Aside from the joint venture, Duluth
Metals retains a 100% position on approximately 40,000 acres of mineral
interests on exploration properties adjacent to and nearby the Twin
Metals Minnesota LLC joint venture.

This press release contains forward-looking statements (including
“forward-looking information” within the meaning of applicable Canadian
securities legislation and “forward-looking statements” within the
meaning of the US Private Securities Litigation Reform Act of 1995)
relating to, among other things, the results of drilling operations of
Duluth Metals and exploration and mine development. Generally,
forward-looking statements can be identified by the use of words such
as “plans”, “expects” or “does not expect”, “is expected”, “budget”,
“scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or
“does not anticipate”, or “believes”, or variations of such words and
phrases or statements that certain actions, events or results “may”,
“could”, “would”, “might” or “will be taken”, “occur” or “be achieved”.
Duluth Metals has relied on a number of assumptions and estimates in
making such forward-looking statements, including, without limitation,
the prices of copper, nickel and platinum group metals (PGMs) and the
costs associated with continuing exploration and mining development.
Such assumptions and estimates are made in light of the trends and
conditions that are considered to be relevant and reasonable based on
information available and the circumstances existing at this time. A
number of risk factors may cause actual results, level of activity,
performance or outcomes of such exploration and/or mine development to
be materially different from those expressed or implied by such
forward-looking statements including, without limitation, whether such
discoveries will result in commercially viable quantities of such
mineralized materials, the possibility of changes to project parameters
as plans continue to be refined, the ability to execute planned
exploration and future drilling programs, possible variations of
copper, nickel and PGM grade or recovery rates, the need for additional
funding to continue exploration efforts, changes in general economic,
market and business conditions, and those other risks set forth in
Duluth Metals’ most recent annual information form under the heading
“Risk Factors” and in its other public filings. Statements related to
“reserves” and “resources” are deemed forward-looking statements as
they involve the implied assessment, based on realistically assumed and
justifiable technical and economic conditions, that an inventory of
mineralization will become economically extractable. Forward-looking
statements are not guarantees of future performance and such
information is inherently subject to known and unknown risks,
uncertainties and other factors that are difficult to predict and may
be beyond the control of Duluth Metals. Although Duluth Metals has
attempted to identify important risks and factors that could cause
actual actions, events or results to differ materially from those
described in forward-looking statements, there may be other factors and
risks that cause actions, events or results not to be as anticipated,
estimated or intended. Consequently, undue reliance should not be
placed on such forward-looking statements. In addition, all
forward-looking statements in this press release are given as of the
date hereof. Duluth Metals disclaims any intention or obligation to
update or revise any forward-looking statements, whether as a result of
new information, future events or otherwise, save and except as may be
required by applicable securities laws. The forward-looking statements
contained herein are expressly qualified by this disclaimer.

Cautionary Note to United States Investors Concerning Estimates of
Indicated and Inferred Mineral Resources

This press release uses the terms “Indicated Mineral Resources” and
“Inferred Mineral Resources” in accordance with the Canadian Institute
of Mining, Metallurgy and Petroleum (CIM) Definition Standards. While
such terms are recognized under Canadian securities legislation, the
United States Securities and Exchange Commission does not recognize
these terms. The term “Inferred Mineral Resource” refers to a mineral
resource for which quantity and grade or quality can be estimated on
the basis of geological evidence and limited sampling and reasonably
assumed, but not verified, geological and grade continuity. These
estimates are based on limited information and it cannot be assumed
that all or any part of an “Inferred Mineral Resource” will be upgraded
to a higher classification resource, such as “Indicated” or “Measured”,
as a result of continued exploration. Accordingly, an estimate relating
to an “Inferred Mineral Resource” is insufficient to allow meaningful
application of technical and economic parameters or to enable an
evaluation of economic viability. Under Canadian securities
legislation, estimates of an “Inferred Mineral Resource” may not form
the basis of feasibility or other economic studies. Investors are
cautioned not to assume that all or any part of an “Inferred Mineral
Resource” is economically or legally mineable. Investors are also
cautioned not to assume that all or any part of “Indicated” will ever
be converted into “Mineral Reserves” (being the economically mineable
part of an “Indicated” or “Measured Mineral Resource”).

(_______________________________ )
(1) TPM = platinum+palladium+gold, expressed as grams per tonne.

 

 

 

SOURCE Duluth Metals Limited

Image with caption: “Figure 1 – Project Area Location, Bedrock Geology and Resources Map (CNW Group/Duluth Metals Limited)”. Image available at: http://photos.newswire.ca/images/download/20130205_C2813_PHOTO_EN_23272.jpg

Image with caption: “Figure 2a – Geologic map of the East Shore area (CNW Group/Duluth Metals Limited)”. Image available at: http://photos.newswire.ca/images/download/20130205_C2813_PHOTO_EN_23273.jpg

Image with caption: “Figure 2b – Geologic cross section of the East Shore area (CNW Group/Duluth Metals Limited)”. Image available at: http://photos.newswire.ca/images/download/20130205_C2813_PHOTO_EN_23274.jpg

Image with caption: “Figure 3a – Copper geochemical anomaly map of glacial tills within the Nickel Lake Macrodike area (CNW Group/Duluth Metals Limited)”. Image available at: http://photos.newswire.ca/images/download/20130205_C2813_PHOTO_EN_23275.jpg

Image with caption: “Figure 3b – Precious metal (Pt+Pd+Au) geochemical anomaly map of glacial tills within the Nickel Lake Macrodike area (CNW Group/Duluth Metals Limited)”. Image available at: http://photos.newswire.ca/images/download/20130205_C2813_PHOTO_EN_23279.jpg

Image with caption: “Figure 4 – Geologic Map of the Nickel Lake Macrodike Area (CNW Group/Duluth Metals Limited)”. Image available at: http://photos.newswire.ca/images/download/20130205_C2813_PHOTO_EN_23280.jpg

Image with caption: “Figure 4 – Cross Section of the Nickel Lake Macrodike Area (CNW Group/Duluth Metals Limited)”. Image available at: http://photos.newswire.ca/images/download/20130205_C2813_PHOTO_EN_23277.jpg


Source: PR Newswire