VANCOUVER, BC, March 1, 2021 /CNW/ - Norden Crown Metals Corp.
("Norden Crown"
or the "Company") (TSXV: NOCR) (OTC: NOCRF)
(Frankfurt: 03E) is pleased to
announce an exceptional discovery at its 100% owned Fredriksson
Gruva prospect ("Fredriksson Gruva") demonstrated by
significant results from the first three holes drilled below
historical mine workings. The discovery holes intersected
significant mineralized widths ranging from 8.15 to 13.60 metres of
precious and base metal, massive and semi-massive sulphide
mineralization, within a geological setting unique to
mineralization belonging to the Broken Hill Type ("BHT")
clan of silver rich zinc-lead ore deposits.
"We are delighted to present to our shareholders robust
silver-zinc-lead intersections which are part of a bonafide Broken
Hill Type mineralizing system at Fredriksson Gruva; the widths and
grades intersected beneath the historical mine workings suggest
that the Gumsberg Project has exceptional growth potential".
Stated Patricio Varas, Chairman and CEO of Norden Crown. "Massive sulphide deposits
are special because it is possible to delineate large tonnages from
comparatively small drill footprints due to the high density of the
mineralization. To put these results into perspective,
Norden Crown's GUM-20-09 intercept
is comparable in width to the height of a three storey
building."
The results of the drilling program at Fredriksson Gruva are
further described in Tables 1, 2 and 3 below.
Table 1. Results from drilling at Fredriksson Gruva
mine
Drill
|
Prospect
|
From
|
To
|
Length
|
Zinc
|
Lead
|
Silver
|
Silver
|
Hole
|
Name
|
(metres)
|
(metres)
|
(metres)
|
(%)
|
(%)
|
(g/t)
|
Equivalent
|
GUM-20-09
|
Fredriksson
Gruva
|
123.70
|
134.05
|
10.35
|
5.24
|
1.84
|
43.86
|
257.61
|
GUM-20-10
|
Fredriksson
Gruva
|
134.90
|
148.50
|
13.60
|
6.05
|
1.39
|
43.20
|
272.40
|
GUM-20-11
|
Fredriksson
Gruva
|
151.85
|
160.00
|
8.15
|
3.83
|
0.503
|
18.13
|
152.71
|
*Insufficient
drilling has been completed to definitively determine true
thickness; true thickness is estimated to be between 90-95% for
holes GUM-20-09 to -11 based on angle to core axis and 3D
interpretation. Metal ratios are calculated assuming 100%
recoveries at US $1806 Gold, US $27.65 Silver, US $ 1.05 Lead and
US $ 1.29 Zinc.
|
Drilling Program at Fredriksson Gruva
The three discovery drill holes (totaling 569 metres) completed
at Fredriksson Gruva were part of an eleven hole 2,365.6 metre
diamond drill program completed at the Company's 100% owned
Gumsberg Project, located in the Bergslagen Mining Region of
southern Sweden. The objective of the drill program was to
demonstrate that mineralization continues beneath the historical
mine workings, which extend to 91 metres below surface. The
program was also designed to confirm historical silver-zinc-lead
grades, thicknesses, and to test the continuity of this
mineralization. Holes GUM-20-09 and GUM-20-10 are positioned
30 metres down plunge of the historical underground workings and
are spaced 40 metres apart. Hole GUM-20-11 is 30 metres below
GUM-20-10 (60 metres below the historical workings) (see Figure
1).
An important aspect of the mineralization is that the massive to
semi-massive sulphide intervals are developed within a broader
sequence of highly magnetic iron and manganese-rich chemical
sediments. This distinctive and thick sequence of chemical
sedimentary rocks will provide an important marker horizon that
will be used to track the mineralization along strike and at depth.
Future diamond drilling at Fredriksson Gruva will continue
testing the continuity of BHT style massive sulphide mineralization
and associated iron formation below the historical mine workings
where ongoing 3D geological modeling demonstrates that silver-
zinc-lead mineralization extends to at least 290 metres in
depth.
Table 2. Drill results from the recently completed
2020-2021 drilling at Fredriksson Gruva
Drill
|
Prospect
|
From
|
To
|
Length
|
Zinc
|
Lead
|
Silver
|
Silver
|
Hole
|
Name
|
(metres)
|
(metres)
|
(metres)
|
(%)
|
(%)
|
(g/t)
|
Equivalent
|
GUM-20-09
|
Fredriksson
Gruva
|
123.70
|
134.05
|
10.35
|
5.24
|
1.84
|
43.86
|
217.57
|
GUM-20-09
|
Fredriksson
Gruva
|
123.70
|
128.00
|
4.30
|
4.54
|
2.69
|
73.53
|
246.45
|
GUM-20-10
|
Fredriksson
Gruva
|
122.00
|
130.20
|
8.20
|
1.55
|
0.38
|
14.98
|
63.14
|
GUM-20-10
|
Fredriksson
Gruva
|
120.00
|
120.40
|
0.40
|
8.18
|
0.01
|
2.98
|
216.11
|
GUM-20-10
|
Fredriksson
Gruva
|
122.00
|
126.50
|
4.50
|
1.72
|
0.40
|
14.99
|
67.84
|
Incl.
|
Fredriksson
Gruva
|
128.00
|
130.20
|
2.20
|
2.15
|
0.61
|
19.63
|
87.93
|
GUM-20-10
|
Fredriksson
Gruva
|
134.90
|
148.50
|
13.60
|
6.05
|
1.39
|
43.20
|
229.08
|
Incl.
|
Fredriksson
Gruva
|
134.90
|
146.50
|
11.60
|
6.93
|
1.60
|
50.17
|
263.14
|
and
|
Fredriksson
Gruva
|
139.00
|
143.00
|
4.00
|
10.00
|
2.16
|
70.08
|
374.33
|
GUM-20-11
|
Fredriksson
Gruva
|
151.85
|
160.00
|
8.15
|
3.83
|
0.50
|
18.13
|
152.71
|
Incl.
|
Fredriksson
Gruva
|
151.85
|
158.60
|
6.75
|
4.47
|
0.54
|
20.69
|
148.12
|
and
|
Fredriksson
Gruva
|
151.85
|
154.50
|
2.65
|
8.21
|
0.25
|
23.61
|
242.35
|
*Insufficient
drilling has been completed to definitively determine true
thickness; true thickness is estimated to be between 90-95% for
holes GUM-20-09 to -11 based on angle to core axis and 3D
interpretation. Metal ratios are calculated assuming 100%
recoveries at US $1806 Gold, US $27.65 Silver, US $ 1.05 Lead and
US $ 1.29 Zinc.
|
Table 3. Drill hole locations and
Orientation Information
Drill Hole
|
Drill Hole
|
Drill Hole
|
Drill Hole
|
Drill Hole
|
Drill Hole
|
Drill Hole
|
ID
|
Easting
|
Northing
|
Elevation
|
Depth
|
Azimuth
|
Inclination
|
GUM-20-09
|
521500
|
6684250
|
231
|
179
|
260
|
60
|
GUM-20-10
|
521502
|
6684293
|
236
|
178.5
|
250
|
59
|
GUM-20-11
|
521522
|
6684286
|
235
|
211.5
|
260
|
60
|
A geological review of this newly recognized mineralization
indicates that the mineralized formation is folded, forming a
moderate to steeply eastward-plunging open anticline. BHT
mineralization at Fredriksson Gruva is associated with an extensive
regional-scale magnetite-rich iron formation(s) and corresponding
magnetic anomaly which Norden Crown
intends to further delineate in the subsurface using detailed UAV
magnetic geophysical surveys. Regional magnetic geophysical
data sourced from the Geological Survey of Sweden suggests that the prospective magnetic
anomaly (and coincident magnetite-bearing iron formation) extends
over 21 kilometres across the Gumsberg West Licence (southwest of
Fredriksson Gruva) greatly enhancing the exploration potential for
further BHT discoveries (see Figure 2).
The nearest occurrence of BHT mineralization is located
immediately south of the Gumbsberg claims at Stollgruvan, where the
Gammsberg mine (6.7M
Tonnes1) has been described as a BHT deposit hosted in
banded iron formations 2,3,4.
About Broken Hill Type Deposits
BHT Ag-Zn-Pb deposits constitute some of the largest and
highest-grade ore deposits in the world2 (see Table 4).
The namesake deposit, Broken Hill, is located in western
New South Wales, Australia, and
represents the largest accumulation of Pb, Zn, and Ag on
Earth2. BHT deposits constitute a
distinctive type of stratiform, sediment hosted lead-zinc mineral
deposits. BHT deposits are characterized and distinguished
from other silver-zinc-lead deposits by the chemistry of the
sediment that host them and that they are usually associated
spatially and temporally with volcanism.
Characteristic features of these types of deposits include:
- High grade Ag + Zn + Pb mineralized ores
- Metamorphic grades ranging to amphibolite-granulite facies
- Paleoproterozoic oxidized clastic metasedimentary host rocks in
the absence of metamorphosed carbonates/calcsilicate horizons
- Spatially associated with bimodal (felsic and mafic) intrusive
and volcanic rocks, and stratabound gahnite- and garnet-bearing
rocks and iron formations
- Stacked orebodies with characteristic Pb:Zn:Ag ratios and
skarn-like (generally pyroxenoid dominated) Fe-Mn-Ca-F gangue
assemblages
- Sulfur-poor assemblages
- A spatial relationship to continental rifts
Significantly, the intimate association with magnetite iron
formations is considered an important guide for Norden Crown to follow and explore for
continuous mineralized BHT deposits along the +21 kilometre belt of
prospective iron formation. In addition, the association of
manganiferous garnets (spessartine), the presence of stratabound
gahnite in the metamorphosed sedimentary rocks, and anomalous base
metals in these deposit types provide an excellent first pass
screening that will be useful for evaluating these prospective iron
formations for their potential to host BHT deposits.
Table 4. Globally
Significant BHT Deposits Tonnage
and Grades
|
|
Millions
|
Silver
|
Lead
|
Zinc
|
Lead +
Zinc
|
Silver
Equiv.*
|
|
Deposit
|
Tonnes
|
(g/t)
|
(%)
|
(%)
|
(%)
|
(g/t)
|
Australia
|
Broken Hill
6
|
280
|
148
|
10
|
8.5
|
18.5
|
656.27
|
|
Cannington (BHP
Maiden reserves) 6
|
45
|
520
|
11.9
|
4.8
|
16.7
|
954.65
|
|
Cannington (S-32
Underground 2017) 7
|
61
|
187
|
5.25
|
3.21
|
8.46
|
413.73
|
|
Cannington (S-32 Open
Cut 2017) 7
|
29
|
91
|
2.89
|
2.27
|
5.16
|
231.92
|
|
Pegmont (QLD)
6
|
11
|
11
|
8.4
|
3.7
|
12
|
327.79
|
Sweden
|
Zinkguravan (Vielle
Montagne 2002) 8
|
40
|
100
|
5.5
|
10
|
15.5
|
550.06
|
|
Zinkgruvan
(North/RioTinto/Lundin) Mined 94-16 8
|
19.3
|
84
|
4
|
9.9
|
13.9
|
495.44
|
|
Zinkgruvan (Current
Lundin) 8
|
15.7
|
84
|
3.7
|
9.3
|
13
|
469.14
|
|
Stollberg
9
|
6.7
|
60
|
2.6
|
7.7
|
10.3
|
367.94
|
South
Africa
|
Gamsberg (S Af)
6
|
150
|
6
|
0.6
|
7.1
|
7.7
|
247.51
|
|
Big Syncline (S. AF)
6
|
101
|
13
|
1
|
2.5
|
3.5
|
116.66
|
|
Black Mt (S. Af)
6
|
82
|
30
|
2.7
|
0.6
|
3.3
|
112.96
|
|
Broken Hill (S.AF)
6
|
38
|
82
|
6.4
|
2.9
|
9.3
|
325.96
|
*Silver Equivalent
values are calculated using metal ratios assuming 100% recoveries
at US $1806 Gold, US $27.65 Silver, US $ 1.05 Lead, US $ 1.29
Zinc.
|
Quality Control, Quality Assurance and Core Handling
Protocols
Drill core is logged and prepped for sampling before submittal
to ALS in Malå, Sweden where it is
cut, bagged and prepped for analysis. Accredited control samples
(blanks and accredited standards) are inserted into the sample
intervals regularly. Samples are dried (if necessary), weighed,
crushed (70% < 2mm), and riffle split into two fractions. One is
retained (coarse reject) and the other is pulverized to 85% <
75µm. Pulps are analyzed by ultra-trace ICP-MS (ME-MS41) and
ICP-AES Au (Au-ICP22). Over detection limit samples are reanalyzed
using ore grade ICP-AES by aqua regia (ME-OG62) or by AAS in the
case of high-grade zinc (ZnAAORE).
References to other Mines and Deposits
References to other mines and deposits made in this news release
provide context for the Fredriksson Gruva and Gumsberg Project,
which occurs in a similar geologic setting, but this is not
necessarily indicative that the Projects host similar grades and
tonnages of mineralization.
References
1 Raat,
H., Jansson, N.F., and Lundstam, E., 2013, The Gränsgruvan Zn-Pb-Ag
deposit, an outsider in the Stollberg ore field, Bergslagen,
Sweden: Geology Applied to Mineral Deposits, Biennial Meeting,
12th, Uppsala, Sweden, August 12–15, 2013, Proceedings, p.
12–15.
|
|
2 Spry,
P.G., O'Brien, J.J., Frank, K.S., Teale, G. S., Koenig, A.,
Jansson, N., Allen, R. et al., 2015, Trace element compositions of
silicates and oxides as exploration guides to metamorphosed massive
sulphide deposits: examples from Broken Hill, Australia, and
Stollberg, Sweden. 27th International Association of Applied
Geochemists: Indicator Mineral Workshop, Tucson, April 2015, p.
23-29.
|
|
3 Beeson, R., 1990, Broken Hill-type
lead-zinc deposits – an overview of their occurrence and geological
setting: Transactions of the Institution of Mining and Metallurgy,
v. 99, p. 63-B175
|
|
4Spry,
P.G., O'Brien, J.J., Frank, K.S., Teale, G. S., Koenig, A.,
Jansson, N., Allen, R.. et al. 2015, Trace element compositions of
silicates and oxides as exploration guides to metamorphosed massive
sulphide deposits: examples from Broken Hill, Australia, and
Stollberg, Sweden. 27th International Association of Applied
Geochemists: Indicator Mineral Workshop, Tucson, April 2015, p.
23-29.
|
|
5Edberg,
L., and Flood, B., 1982. Rapport Grb 262 SLUTRAPPORT FRAN
DIAMANTBORRNINGARNA VID FREDRIKSSONGRUVAN (GYLLINGEN) 1981/1982©
Sveriges geologiska undersökning (SGU) (Geological Survey of
Sweden)
|
|
6Large,
R., Bull, S., Selley, D., Yang, J., Cooke, D., Garven, G., and
McGoldrick, P., 2002 Controls on the formation of giant stratiform
sediment-hosted Zn-Pb-AG deposits: with particular reference to the
north Australian Proterozoic, in Giant ore deposits, CODES special
publication 4, Universitiy of Tasmania, Australia. 269pp and
BHP Billiton Corporate Presentation - Stewart 2002
|
|
7Readford,
M and Curypto, T, South 32 - Cannington Mineral Resources update,
24 August, 2017.
https://www.south32.net/docs/default-source/all-financial-results/fy2017-full-year-financial-results/cannington-mineral-resources-and-ore-reserves-update.pdf.
|
|
8Daffern,
T., Ellis, R., King, P., Richardson, S., Glucksman, E., Beveridge,
A., NI 43-101 TECHNICAL REPORT FOR THE ZINKGRUVAN MINE, SWEDEN
November 2017, Prepared by Wardell Armstrong International for
Lundin Mining. Approved by Dr. P.S., Newal, 30, November
2017.
|
|
9Raat, H.,
Jansson, N.F., and Lundstam, E., 2013, The Gränsgruvan Zn-Pb-Ag
deposit, an outsider in the Stollberg ore field, Bergslagen,
Sweden: Geology Applied to Mineral Deposits, Biennial Meeting,
12th, Uppsala, Sweden, August 12–15, 2013, Proceedings, p.
12–15.
|
About Norden Crown Metals Corp.
Norden Crown is a mineral
exploration company focused on the discovery of silver, zinc,
copper, and gold deposits in exceptional, historical mining project
areas spanning Sweden and
Norway. The Company aims to discover new economic mineral
deposits in known mining districts that have seen little or no
modern exploration techniques. The Company is led by an
experienced management team and an accomplished technical team,
with successful track records in mineral discovery, mining
development and financing.
Qualified Person
Patricio Varas, P.Geo, a
Qualified Person as defined by National Instrument 43-101
Standards of Disclosure for Mineral Projects, has read and
approved all technical and scientific information contained in this
news release.
On behalf of Norden Crown Metals
Corp.
Patricio Varas, Chairman and
CEO
Neither TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release.
Cautionary Note Regarding Forward-Looking Statements
This news release contains certain statements that may be deemed
"forward–looking statements". Forward–looking statements are
statements that are not historical facts and are generally, but not
always, identified by the words "expects", "plans", "anticipates",
"believes", "intends", "estimates", "projects", "potential" and
similar expressions, or that events or conditions "will", "would",
"may", "could" or "should" occur. Forward-looking statements
may include, without limitation, statements relating to future
outlook and anticipated events, such as the growth potential of the
Gumsberg Project; future diamond drilling at Fredriksson Gruva; the
continuity and future discovery of BHT style mineralization at
Fredriksson Gruva; and the future delineation of a magnetite-rich
iron formation at Fredriksson Gruva. Although Norden Crown
believes the expectations expressed in such forward–looking
statements are based on reasonable assumptions, such statements are
not guarantees of future performance, are subject to risks and
uncertainties, and actual results or realities may differ
materially from those in the forward–looking statements. Such
material risks and uncertainties include, but are not limited to,
Norden Crown's ability to raise
sufficient capital to maintain its mineral tenures and concessions
in good standing, to explore and develop its projects, to repay its
debt and for general working capital purposes; changes in economic
conditions or financial markets; the ability of Norden Crown to obtain the necessary permits and
consents required to explore, drill and develop the projects and if
obtained, to obtain such permits and consents in a timely fashion
relative to Norden Crown plans and
business objectives for the projects; the general ability of
Norden Crown to drill test its
projects and find mineral resources; if any mineral resources are
discovered or acquired, the Company's ability to monetize any such
mineral resources; and changes in environmental and other laws or
regulations that could have an impact on the Company's operations.
Forward–looking statements are based on the reasonable beliefs,
estimates and opinions of Norden
Crown management on the date the statements are made. Except
as required by law, Norden Crown
undertakes no obligation to update these forward–looking statements
in the event that management's beliefs, estimates or opinions, or
other factors, should change.
SOURCE Norden Crown Metals Corp.