VANCOUVER, BC, Sept. 7,
2023 /CNW/ - Panoro Minerals Ltd. (TSXV: PML)
(Lima: PML) (Frankfurt: PZM) (OTCQB: POROF) ("Panoro", the
"Company") is pleased to announce the results of four exploratory
drill holes which intercept a new high grade Skarn type
mineralization located less than 1 km to the west of the North Pit
limit, at the Company's Cotabambas Cu/Au/Ag Project in southern
Peru. The new target is named the
"North West Pit" Target (the "NW Target")
The highlights are:
- Drillhole CB-225A is an exploratory hole
intersecting 27.9 m of primary
sulfide copper mineralization averaging 1.50% Cu, 5.79 g/t
Ag, 0.01 g/t Au (1.56% Cueq), including an interval of 12.1m grading 2.07% Cu, 7.2 g/t Ag, 0.02 g/t Au
(2.15% Cueq), and a second interval of 9.3m averaging 1.68% Cu, 6.17 g/t Ag, 0.02 g/t Au
(1.75% Cueq). The mineralogy is composed of a semi-massive
magnetite containing semi-massive and patch of chalcopyrite and
minor pyrite, interlayering with massive andradite garnets,
epidote, pyroxenes and intervals of marmolized limestone.
- Drillhole CB-227 is an exploratory hole intersecting
71.4m of hypogene copper
mineralization grading 0.47% Cu, 2.46 g/t Ag, 0.02 g/t Au (0.51%
Cueq), including an interval of 37.0
m averaging 0.75% Cu, 3.61 g/t Ag, 0.03 g/t Au (0.80% Cueq)
and 14.9 m grading 1.26% Cu, 5.49 g/t
Ag, 0.03 g/t Ag (1.33% Cueq). The skarn mineralization appears the
same as intersected by the hole CB-225A, confirming the lateral and
vertical continuity of the skarn bodies identified at surface.
- The NW Pit target is located approximately 500m to the west of the PEA North pit limit. In
the 2017 exploration campaign the mapping and sampling identified 5
skarn bodies at surface over an area of 1200m by 800m. The
2023 drilling campaign has identified the continuity at depths to
over 350m below the surface.
Luquman Shaheen, President & CEO commented, "Drillholes 225A
and 227 have identified the growing potential of the mineralization
at the Cotabambas Project. The recently completed drill
program has opened up a number of growth opportunities for the
resource including, to the south of the south pit, the gap area
between the north and south pits, to the north of the north pit and
now also to the northwest of the north pit. These targets, in
addition to the targets at Chaupec and Jean
Louis areas, continue to demonstrate the unfolding resource
potential along the entire extent of Panoro's mineral concessions
covering an area of 120 square kilometers. We are targeting
an update to the already significant resource at the Cotabambas
Project for completion this month and look forward to quantifying
the results of the 2022-2023 drilling program with the new resource
estimate. Moreover, the current results reinforce
management's confidence in additional exploration upside."
PREVIOUS WORK IN THE NW PIT
AREA
The exploration work dates from Cordillera de Las Minas time
(2003), where four drillholes (1,135m) explored a quartz-monzonite stock
outcropping 300 to 500m in the "South
Area". In 2012 Panoro drilled one additional hole in different
direction. No significant results were obtained (Map in Figure
1).
In 2017 Panoro started the exploration in the NW Pit target,
identifying small outcroppings of quartz-monzonite porphyry dikes
located 300m to the East of the
"North Area". This target was named the Petra-David target, where a
swarm of porphyry dikes intrude the diorite host rock showing
copper oxide mineralization near surface and along a corridor of
750m length by 150m width in North-East direction. In Petra
863m was drilled and in David
372m, distributed in very shallow
drill holes, results were announced previously in press releases of
October 11 and December 11, 2017. The most significant results
in the copper oxide blanket are listed below. (locations Figure
1)
- Petra: Hole CB-171: 11m @0.44%Cu,
0.12 Au g/t, 2.8 Ag g/t (0.56%Cueq)
- Petra: Hole CB-172: 78m @
0.32%Cu, 0.08 Au g/t, 2.2 Ag g/t (0.40%Cueq)
- Petra: Hole CB-173: 61m @0.38%Cu,
0.10 Au g/t, 4.9 Ag g/t (0.51%Cueq)
- David: Hole CB-175: 88m @
0.20%Cu, 0.07 Au g/t, 1.8 Ag g/t (0.27%Cueq)
In 2018 Panoro expanded the exploration to the west, identifying
five bodies with copper oxide and sulphide mineralization, covered
by topsoil and vegetation. The bodies strike 20-40 degrees
Northeast, dip 50 to 45 degrees to the Southeast, and cover an
overall area of 1.2 km by 0.80 km at surface. The area was named
the Guaclle North target, now the "NW Pit Target" which is located
500m to the west side of the PEA
North Pit limit (Figure 2).
The following table shows approximate dimensions, number of rock
samples, average width and grades supporting the continuity of each
skarn body at surface. The results were presented in the press
release of July 2nd,
2019 (see locations in Figure 1):
Body
|
Length
(m)
|
Average
Width
(m)
|
#
Samples
|
Cu
%
|
Au
g/t
|
Ag
g/t
|
Pb
%
|
Zn
%
|
1
|
630
|
60
|
47
|
0.95
|
0.06
|
6.7
|
0.038
|
0.221
|
2
|
600
|
70
|
34
|
0.69
|
0.02
|
3.0
|
0.013
|
0.035
|
3
|
400
|
50
|
18
|
1.01
|
0.04
|
10.8
|
0.103
|
0.144
|
4
|
470
|
110
|
51
|
0.98
|
0.45
|
11.3
|
0.015
|
0.067
|
5
|
270
|
30
|
8
|
0.19
|
0.02
|
1.7
|
0.050
|
0.117
|
The mineralization follows the stratification of big blocks
of limestones, over thrusted by the diorite from east to west which
host the 750m corridor of Petra-David
target as show in Figures 1 and 2.
The Skarn is composed of andradite type garnet, massive
magnetite bodies and layers, epidote, pyroxenes, intruded by small
windows of early and intermedium-stage porphyry dikes. The copper
oxide mineralization is composed by malachite, brochantite, minor
tenorite, and the hypogene copper mineralization by chalcopyrite,
chalcocite and minor bornite. Detailed mapping was completed over
90 hectares at 1:1,000 scale and 348 rock samples were
collected.
2023 DRILLING CAMPAIGN AND
RESULTS
For a first step, the drillholes CB-223, 225A, 226 and 227 were
directed to explore at depth the continuity of the Bodies 1 and 2,
located in the foot wall of the diorite hosting the Petra-David
target. The highlighted intersection results are listed in the
table below (locations in Figure 1)
Drillhole
|
From
|
To
|
Length
|
%Cu
|
Au
g/t
|
Ag
g/t
|
%Mo
|
Pb
ppm
|
Zn
ppm
|
%Cueq
1
|
Type
|
CB-223
|
42.7
|
56.9
|
14.2
|
0.28
|
0.04
|
1.7
|
0.0003
|
22
|
167
|
0.33
|
Hypogene
|
" "
|
156.8
|
167.7
|
10.9
|
0.24
|
0.01
|
1.8
|
0.0009
|
60
|
295
|
0.26
|
Hypogene
|
" "
|
238.0
|
248.7
|
10.7
|
0.14
|
0.03
|
2.2
|
0.0008
|
485
|
1308
|
0.18
|
Hypogene
|
" "
|
322.3
|
322.5
|
0.2
|
2.81
|
1.42
|
13.5
|
0.0002
|
29
|
1530
|
4.08
|
Hypogene
|
CB-225A
|
158.2
|
186.1
|
27.9
|
1.50
|
0.01
|
5.8
|
0.0009
|
128
|
251
|
1.56
|
Hypogene
|
Including
|
158.2
|
167.5
|
9.3
|
1.68
|
0.02
|
6.2
|
0.0011
|
144
|
228
|
1.75
|
Hypogene
|
Including
|
171.6
|
183.7
|
12.1
|
2.07
|
0.02
|
7.2
|
0.0008
|
158
|
232
|
2.15
|
Hypogene
|
CB-226
|
270.1
|
287.1
|
17.0
|
0.25
|
0.02
|
1.4
|
0.0001
|
28
|
208
|
0.28
|
Hypogene
|
CB-227
|
124.8
|
196.2
|
71.4
|
0.47
|
0.02
|
2.5
|
0.0011
|
105
|
292
|
0.51
|
Hypogene
|
Including
|
144.6
|
159.5
|
14.9
|
1.26
|
0.03
|
5.5
|
0.0010
|
115
|
243
|
1.33
|
Hypogene
|
Including
|
144.6
|
181.6
|
37.0
|
0.75
|
0.03
|
3.6
|
0.0008
|
91
|
235
|
0.81
|
Hypogene
|
1. Cu equivalent grade estimated at spot prices of
Au=USD 1771/oz, Ag=USD 20.13/oz and Cu=USD 3.52/lb.
|
Drillhole CB-223 is an exploratory drill hole executed to
review the north extreme of the Body 1 at depth. The hole
intersected a 235m package of Skarn
prograde and retrograde containing interlayering of garnets,
pyroxene, epidote and massive magnetite. Inside the package were
recognized until three flows of hypogene sulfides with widths
varying from 10.7m to 14.2m, averaging from 0.14% Cu to 0.28% Cu, 1.71
to 2.16 g/t Ag, 0.01 to 0.04 g/t Ag (0.18 to 0.33% Cueq). This Body
is open for more exploration in various directions. See
Figure 1.
Drillhole CB-225A is an exploratory drill hole located
450m to the south of drillhole
CB-223, directed to review the Skarn continuity below the Bodies 1
and 2. The hole intersected near surface the garnet and pyroxene
skarn of Body 1 from 25.7 m to
104.2 m including some anomalies from
0.12% Cu to 0.42% Cu and 0.5 g/t Ag to 12.20 g/t Ag.
Body 2 was intersected also, from 158.2m to 186.1m
(27.9m) containing copper hypogene
sulfide averaging 1.50% Cu, 5.79 g/t Ag, 0.01 g/t Au (1.56 %Cueq.),
including one interval of 12.1m
grading 2.07% Cu, 7.2 g/t Ag, 0.02 g/t Au (2.15 % Cueq), and a
second interval of 9.3m averaging
1.68% Cu, 6.17 g/t Ag, 0.02 g/t Au (1.75 %Cueq). The main
composition is a semi-massive magnetite containing semi-massive and
patch of chalcopyrite and minor pyrite, interlayering with massive
andradite garnets and minor epidote, pyroxenes and intervals of
marmolized limestone. Various intervals of primary sulfide with
higher copper and silver grades into the mineralized zone were
intercepted, such as:
- 1.10m of 10% Cu, 36.10 g/t
Ag;
- 1.5m of 5.49% Cu, 21.10 g/t
Ag;
- 1.0m of 5.3% Cu, 26.2 g/t
Ag;
- 1.0m of 3.24% Cu, 12.40 g/t
Ag;
- 0.20m of 12.47% Cu, 9.4 g/t Ag; and
- 0.30m of 8.65% Cu, 24 g/t Ag; including
- Au values from 0.01 g/t to 0.06 g/t, Pb from 30 to 462 ppm and
Zn from 153 to >10,000 ppm. Figure 3
At 186.10m the Skarn
mineralization is in contact with 190m of a late-stage porphyry of quartz monzonite
composition with prograde and retrograde alteration.
Drillhole CB-226 is an exploratory drill hole
targeted to explore the mineral continuity below the hole CB-225A.
The marbleized limestone was intersected just below the diorite,
from 27.45 m to 183.5m, containing a package of 47.8m with a mix of garnet, pyroxene and epidote
skarn alterations that may correspond to Body 1. At depth
214m of the early-stage quartz
monzonite porphyry stock was intersected intruded by 48m of middle-stage quartz monzonite porphyry
dikes containing a low to moderate potassic alteration
(orthoclase-secondary biotite-magnetite) overprinted by SCC
alteration, with some intervals of quartz veinlets containing
magnetite, chalcopyrite, pyrite and chlorite, reporting values from
0.10 to 0.81% Cu, 0.01 to 0.08 g/t Au, and 0.5 to 5.9 g/t Ag. This
middle-stage porphyry was not intersected by the hole CB-225A and
its emplacement could have displaced Body 2. Figure 3.
Drillhole CB-227 is other exploratory drill hole
targeted to review the Body 2 continuity at 100m to the south of the hole
CB-225A. CB-227 intersected 71.4m of hypogene copper mineralization averaging
0.47% Cu, 2.46 g/t Ag, 0.02 g/t Au (0.51%Cueq), including an
interval of 37.0m grading 0.75% Cu,
3.61 g/t Ag, 0.03 g/t Au (0.81% Cueq) and another interval of
15.0m averaging 1.26% Cu, 5.49 g/t
Ag, 0.03 g/t Ag (1.33 % Cueq). The mineralization and skarn
alterations are the same as the intersected by drillhole CB-225A,
with the massive magnetite hosting semi-massive chalcopyrite and
minor pyrite. Into the mineralized zone were recognized various
intervals of primary sulfide with higher copper and silver grades,
such as:
- 1.50m of 2.85% Cu, 8.9 g/t
Ag;
- 0.5m of 10.76% Cu, 32.3 g/t
Ag;
- 0.75m of 3.0% Cu, 8.9 g/t Ag;
and
- 0.45m of 2.25% Cu, 4.10 g/t Ag;
including
- Au values from 0.01 to 0.14 g/t. Figure 4.
GEOLOGIC POTENTIAL IN THE NW PIT
TARGET
The surface mapping and rock sampling done in 2017 permit to
configure the continuity of the massive magnetite skarn on the Body
2 over 650m length in North-East
direction and dipping to the East below the diorite in the located
in the hanging wall. The drillhole CB-225A intersect the same body
2 at 500m below the outcropping and
the CB-227 at 700m below the
outcropping. The geologic potential is estimated to be between 40
to 50 million tonnes averaging 0.50% Cueq to 1.50% Cueq.
The limestone package hosting the skarn bodies still open for
additional drilling exploration in different directions. To the
East is open below the diorite hosting the petra-david targets; to
the south in the intersection of petra target with the east-west
fault controlling the mineralization in the North pit; to the west
with the other three skarn bodies and the Tamburo skarn target; and
to the north is open to the cateo-puente skarn target located at
1km.
The NW Pit represents a new high-grade target with high
opportunity to be incorporated in the middle future, in the mine
plan initiated in the North and South pits.
About Panoro
Panoro is a uniquely positioned Peru-focused copper development company. The
Company is advancing its flagship Cotabambas Copper-Gold-Silver
Project located in the strategically important area of southern
Peru.
The Company's objective is to complete a Prefeasibility study in
2023 with work programs commencing in Q1 2022.
At the Cotabambas Project, the Company will first focus on
delineating resource growth potential and optimizing metallurgical
recoveries. These objectives are expected to further enhance
the project economics as part of the Prefeasibility studies during
2022 and 2023. Exploration and step-out drilling from 2017,
2018 and 2019 have already identified the potential for both oxide
and sulphide resource growth.
Summary of Cotabambas Project Resources 1
Project
|
Resource
Classification
|
Million
Tonnes
|
Cu (%)
|
Au (g/t)
|
Ag (g/t)
|
Mo (%)
|
CuEq %
|
Cotabambas1
Cu/Au/Ag
|
Indicated
|
117.1
|
0.42
|
0.23
|
2.74
|
0.001
|
0.59
|
Inferred
|
605.3
|
0.31
|
0.17
|
2.33
|
0.002
|
0.44
|
@ 0.20% CuEq cutoff,
effective October 2013, Tetratech
|
|
1. Cotabambas
Project, Apurimac, Peru, NI 43-101 Technical Report on Updated
Preliminary Economic Assessment, amec foster
wheeler and Moose Mountain Technical Services, 22 September
2015
|
A PEA has been completed for the Cotabambas Project; the
key results are summarized below:
Summary of Cotabambas Project PEA Results
Key Project
Parameters
|
|
Cotabambas Cu/Au/Ag
Project1
|
Process Feed, life of
mine
|
million
tonnes
|
483.1
|
Process Feed,
daily
|
tonnes
|
80,000
|
Strip Ratio, life of
mine
|
|
1.25 : 1
|
Before
Tax1
|
NPV7.5%
|
million US$
|
1,053
|
IRR
|
%
|
20.4
|
Payback
|
years
|
3.2
|
After
Tax1
|
NPV7.5%
|
million US$
|
684
|
IRR
|
%
|
16.7
|
Payback
|
years
|
3.6
|
Annual
Average
Payable
Metals
|
Cu
|
thousand
tonnes
|
70.5
|
Au
|
thousand
ounces
|
95.1
|
Ag
|
thousand
ounces
|
1,018.4
|
Mo
|
thousand
tonnes
|
-
|
Initial Capital
Cost
|
million US$
|
1,530
|
1.
Project economics estimated at commodity prices of; Cu = US$
3.00/lb, Au = US$ 1,250/oz, Ag = US$ 18.50/oz, Mo = US$
12/lb
|
PEAs are considered preliminary in nature and include Inferred
Mineral Resources that are considered too speculative to have the
economic considerations applied that would enable classification as
Mineral Reserves. There is no certainty that the conclusions within
the PEAs will be realized. Mineral Resources are not Mineral
Reserves and do not have demonstrated economic viability.
Luis Vela, a Qualified Person
under National Instrument 43-101, has reviewed and approved the
scientific and technical information in this press release.
On behalf of the Board of Panoro Minerals Ltd.
Luquman Shaheen. M.B.A., P. Eng, P.E.
President &
CEO
CAUTION REGARDING FORWARD LOOKING STATEMENTS: Information
and statements contained in this news release that are not
historical facts are "forward-looking information" within the
meaning of applicable Canadian securities legislation and involve
risks and uncertainties.
Examples of forward-looking information and statements contained
in this news release include information and statements with
respect to:
- Panoro delineating growth potential at the Cotabambas Project,
while optimizing project economics.
- mineral resource estimates and assumptions; and
- the PEAs, including, but not limited to, base case parameters
and assumptions, forecasts of net present value, internal rate of
return and payback.
Various assumptions or factors are typically applied in drawing
conclusions or making the forecasts or projections set out in
forward-looking information. In some instances, material
assumptions and factors are presented or discussed in this news
release in connection with the statements or disclosure containing
the forward-looking information and statements. You are cautioned
that the following list of material factors and assumptions is not
exhaustive. The factors and assumptions include, but are not
limited to, assumptions concerning: metal prices and by-product
credits; cut-off grades; short and long term power prices;
processing recovery rates; mine plans and production scheduling;
process and infrastructure design and implementation; accuracy of
the estimation of operating and capital costs; applicable tax and
royalty rates; open-pit design; accuracy of mineral reserve and
resource estimates and reserve and resource modeling; reliability
of sampling and assay data; representativeness of mineralization;
accuracy of metallurgical test work; and amenability of upgrading
and blending mineralization.
Forward-looking statements are subject to a variety of known and
unknown risks, uncertainties and other factors which could cause
actual events or results to differ materially from those expressed
or implied by the forward-looking statements, including, without
limitation:
- risks relating to metal price fluctuations
- risks relating to estimates of mineral resources, production,
capital and operating costs, decommissioning, or reclamation
expenses, proving to be inaccurate
- the inherent operational risks associated with mining and
mineral exploration, development, mine construction and operating
activities, many of which are beyond Panoro's control
- risks relating to Panoro's or its partners' ability to enforce
legal rights under permits or licenses or risk that Panoro or its
partners will become subject to litigation or arbitration that has
an adverse outcome
- risks relating to Panoro's or its partners' projects being in
Peru, including political,
economic, and regulatory instability
- risks relating to the uncertainty of applications to obtain,
extend or renew licenses and permits
- risks relating to potential challenges to Panoro's or its
partners' right to explore or develop projects
- risks relating to mineral resource estimates being based on
interpretations and assumptions which may result in less mineral
production under actual circumstances
- risks relating to Panoro's or its partners' operations being
subject to environmental and remediation requirements, which may
increase the cost of doing business and restrict operations
- risks relating to being adversely affected by environmental,
safety and regulatory risks, including increased regulatory burdens
or delays and changes of law
- risks relating to inadequate insurance or inability to obtain
insurance
- risks relating to the fact that Panoro's and its partners'
properties are not yet in commercial production; • risks relating
to fluctuations in foreign currency exchange rates, interest rates
and tax rates
- risks relating to Panoro's ability to raise funding to continue
its exploration, development, and mining activities; and
- counterparty risk under Panoro's agreements.
This list is not exhaustive of the factors that may affect the
forward-looking information and statements contained in this news
release. Should one or more of these risks and uncertainties
materialize, or should underlying assumptions prove incorrect,
actual results may vary materially from those described in the
forward-looking information. The forward-looking information
contained in this news release is based on beliefs, expectations,
and opinions as of the date of this news release. For the
reasons set forth above, readers are cautioned not to place undue
reliance on forward-looking information. Panoro does not
undertake to update any forward-looking information and statements
included herein, except in accordance with applicable securities
laws.
Neither the 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.
SOURCE Panoro Minerals Ltd.