Panoro Minerals Intersects 260 m at 0.90% Cueq, Cotabambas Project, Peru
Panoro Minerals Intersects 260 m at 0.90%
Cueq, Cotabambas Project, Peru
VANCOUVER, BC
,
Aug. 31, 2022
/CNW/ -
Panoro Minerals Ltd.
(TSXV: PML) (Lima: PML)
(Frankfurt: PZM) (OTCQB: POROF) ("Panoro", the "Company") is pleased to announce results of
four additional drill holes from its 16,970 m drill program, the aim of which is to expand the high-
grade resource and upgrade inferred to indicated resources at the Company's Cotabambas
Cu/Au/Ag Project in southern
Peru
.
Hole CB-198 confirms the high-grade continuity between the previous holes CB-23 and CB-195,
intersecting a
260 m
length of primary copper sulfide mineralization averaging 0.43% Cu, 0.61 g/t Au
and 2.72 g/t, Ag (0.90% Cueq), related to a porphyry stock of quartz monzonite composition
intruding the diorite host rock,
Figure 1
. The intersection includes
130.4 m
averaging 0.58% Cu,
0.95 g/t Au and 3.41 g/t, Ag (1.31 % Cueq)
"Drillhole CB-198 delineates the high-grade core contained within the South Pit to approximately
350
m
depth, to the bottom of the pit shell defined in the PEA mine plan and indicates continuity to a
depth of over
500m
to the pit shell constraining the global resource. The high-grade continuity
indicates the potential to replace lower grade resource within the mine plan with higher grades
including in the early part of the mine plan. This will result in important upsides to the prefeasibility
study.", stated Luquman Shaheen, President & CEO.
Discussion of Results
The purpose of Holes CB-197 and CB-199 was to confirm the east and west continuity of the
Copper-Gold high-grades near the surface, respectively and the purpose of holes CB-198 and CB-
200 was to confirm the lateral and vertical continuity. See the locations of the holes on the map
Figure 2
. The most significant results are listed in the table below.
Drillhole
From (m)
To (m)
Metres
Cu (%)
Au g/t
Ag g/t
Cueq %
1
Zone
CB-197
202.1
291.6
89.5
0.13
0.09
0.82
0.20
Primary
" "
307.8
341.6
33.8
0.12
0.07
0.72
0.18
Primary
" "
360.7
384.0
23.3
0.14
0.06
0.93
0.19
Primary
" "
405.9
435.9
20.0
0.13
0.10
1.30
0.21
Primary
" "
452.7
470.7
18.0
0.13
0.07
0.69
0.19
Primary
CB-198
123.0
382.9
260.0
0.43
0.61
2.72
0.90
Primary
including
142.7
273.1
130.4
0.58
0.95
3.41
1.31
Primary
including
289.1
343.0
53.9
0.4
0.37
2.83
0.70
Primary
CB-199
135.7
179.6
44.0
0.11
0.07
0.78
0.17
Primary
" "
209.0
264.2
55.2
0.15
0.05
0.66
0.19
Primary
CB-200
122.8
320.6
197.8
0.16
0.11
1.17
0.25
Primary
including
132.8
182.4
49.6
0.31
0.27
2.14
0.53
Primary
1.
Cu equivalent grade estimated at spot prices of Au=USD 1771/oz, Ag=USD 20.13/oz and Cu=USD 3.52/lb
Drill hole
CB-197
explored the easter continuity of the new high grade intersected by the previously
announced hole CB-196, located
150m
to the west. The hypogene mineralization was intersected in
five splits with copper and gold anomalies. The mineralization is contained within the diorite host rock
printed with an overlapping of potassic, SCC and phyllic alterations. The intersections show intensive
faulting suggesting the high-grade mineral block was moved to depth and northwest, in direction to
the North pit.
Drillhole
CB-198
explored the high-grade continuity in section 5W, intersecting copper primary
mineralization along 260.0 m averaging 0.43%Cu, 0.61 g/t Au and 2.72 g/t Ag (0.90% Cueq)
including
130.4 m
grading 0.58% Cu, 0.95 g/t Au and 3.41 g/t Ag (1.31 % Cueq) underlain by
53.9 m
averaging 0.40% Cu, 0.37 g/t Ag and 2.83 g/t Ag (0.70 % Cueq). The quartz monzonite porphyry
with potassic and SCC alterations is hosting a wide stockwork of quartz veinlets with chalcopyrite,
pyrite and magnetite. The three holes completed in this section confirm a vertical continuity of the
high grade of
350 m
, with grades varying between 0.67% and 0.92% Cueq. and widths between
180 and
260m
.
Drillhole
CB-199
is located
150 m
to the east of the high grade intersected by drillholes CB-195 and
CB198, and
100 m
above the mineralization intersected by drillhole CB-20,
Figure 2
. The hole
intersected a fault system constraining the lateral mineral continuity, intersecting two copper
anomalies hosted in the diorite with moderated potassic alteration.
Drillhole
CB-200
located
100 m
above CB-196, where the high-grade was intersected. CB-200
intersected almost
50 m
of primary copper mineralization averaging 0.31% Cu, 0.27 g/t Au, 2.14 g/t
Ag (0.53 Cueq %). The interval is part of an extensive hypogene mineralization developed in the
hanging wall of a quartz monzonite porphyry not intersected by drillhole CB-196, suggesting blocks
have been moved by local faulting.
Exploration Model at the South Pit
Six holes have been completed in the South pit in for a total of 16 holes (
6,166m
). A porphyry of
quartz monzonite composition (QMP2) is emplaced along a structural control in an almost North-
South direction into the diorite host rock, and subsequent intrusions of narrow dikes of QMP3,
quarciferous/dacite, monzonite and latite compositions. A second faulting system in North 60-80
East direction intersects the porphyry at its north extreme, where other porphyry stages intrude (the
QMP1) and enrich the metal concentration. Finally, a lithocap of andesite volcanic hides the previous
lithologies and mineralization under the surface, following an overthrust faulting in a west direction.
The alteration model is centered by the potassic assemblage in the QMP1, expanding to the QMP2
and the diorite host rocks, following mainly the North 60-80 East structural direction. The SCC
alteration assemblage is proximal to the potassic, with the phyllic and propylitic alterations appearing
outwards of the porphyry center. See a typical section in
Figure 1
.
The drilling results confirm the existence of a high-grade ore body (HGOB) centered by the QMP1,
extending along the N60-80E structural control, and dipping to the south-southeast. The hypogene
sulfide in this body is intimately associated with multiphase stockworks and unidirectional arrays of
millimetric and centimetric veinlets of A, B, and M types, in potassically altered rock of the QMP1
and adjacent diorite. The copper-gold mineralization in the HGOB is dominantly contained in a
steeply inclined, tabular zone of intense quartz veining, typically carrying >30 veinlets per meter. The
HGOB widths vary from
50 m
to
260 m
and averaging grades from 0.51 to 1.21 % Cueq. The ore
body outcrops at surface along
150 m
strike length and shows a vertical continuity to over
450m
depth, where its lateral footprint is increased to
450m
along strike. Good potential exists to grow the
lateral continuity to
750 m
along strike, as suggested by the drillhole, CB-05, located close to the
North pit limit. See
Figure 3
,
Figure 4
,
Figure 5
and
Figure 6
.
The average copper
:
gold ratio, in term of contained metal value, in the South pit is 1:1 and reflects
the higher gold content than in the North pit where this ratio is averaging 2.7:1. The silver:gold ratio
in the South Pit is 6:1 while in the North pit this increases up to 14:1. The South pit is interpreted as
an early and different mineral pulse of Cu-Ag mineralization rich in gold, as suggested by
geochronology studies. The secondary biotite of the potassic alteration in the South pit porphyry
reports an Ar-Ar age of 35.3
+
0.7 Ma, while in its pair of the North pit reports an Ar-Ar age of
35.9
+
0.4 Ma (R. Rivera 2011). Another study confirmed with K-Ar methods an age of 35.7
+
0.9 Ma
for the North pit porphyry and 43.2
+
1.1 Ma for the diorite host rock (K-Ar age by Perello et.al.
2003).
The geophysics signatures also build up an exploration model that may guide future drilling of the
potential at depth. The HGOB is open and deepening to join the west side of an isolated high
resistivity signature, wrapped and surrounded by a high magnetic anomaly. The chargeability is split
into two blocks and interpreted as an external pyrite halo following a structural over-thrusting,
through which the HGOB is deepening, as shown in
Figure 7
.
Finally, the bottom of the PEA South pit is located between 230 and
300 m
below the surface and
shows the high potential to incorporate new mineral resources at depth, along strike and at depth
following the structurally controlled porphyry.
The Company continues drilling in the South pit adding new mineral resources and upgrading inferred
to the indicated category. In parallel, the re-logging and updates of the geologic modelling are
progressing in parallel. Some of the future drillholes will be located below the CB-23 (section 5W),
CB-63 (section 4W) and CB-196 (section 3W).
Granting of Options
Panoro announces the granting of 500,000 options exercisable at a price of
$0.12
to
Guillermo
Torres Torres
, VP Project Development, pursuant to the Company's stock option plan and subject to
the TSX Venture Exchange rules and regulations.
About Panoro
Panoro is a uniquely positioned
Peru
-focused copper development company. The Company is
advancing its flagship Cotabambas Copper-Gold-Silver Project located in the strategically important
area of southern
Peru
.
The Company's objective is to complete a Prefeasibility study in 2023 with work programs
commencing in Q1 2022.
At the Cotabambas Project, the Company will first focus on delineating resource growth potential
and optimizing metallurgical recoveries. These objectives are expected to further enhance the
project economics as part of the Prefeasibility studies during 2022 and 2023. Exploration and step-
out drilling from 2017, 2018 and 2019 have already identified the potential for both oxide and
sulphide resource growth.
Summary of Cotabambas Project Resources
Project
Resource
Classification
Million
Tonnes
Cu
(%)
Au
(g/t)
Ag
(g/t)
Mo
(%)
CuEq
%
Cotabambas
1
Cu/Au/Ag
Indicated
117.1
0.42
0.23
2.74
0.001
0.59
Inferred
605.3
0.31
0.17
2.33
0.002
0.44
@ 0.20% CuEq cutoff, effective October 2013, Tetratech
1. Cotabambas Project, Apurimac, Peru, NI 43-101 Technical Report on Updated Preliminary Economic Assessment, amec foster
wheeler and Moose Mountain Technical Services, 22 September 2015
A PEA has been completed for the Cotabambas Project. The key results are summarized below:
Summary of Cotabambas Project PEA Results
Key Project Parameters
Cotabambas Cu/Au/Ag Project
1
Process Feed, life of mine
million tonnes
483.1
Process Feed, daily
tonnes
80,000
Strip Ratio, life of mine
1.25: 1
Before Tax
1
NPV
7.5%
million US$
1,053
IRR
%
20.4
Payback
years
3.2
After
Tax
1
NPV
7.5%
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.
View original content to download multimedia:
http://www.newswire.ca/en/releases/archive/August2022/31/c2846.html
%SEDAR: 00019503E
For further information:
Panoro Minerals Ltd., Luquman Shaheen, President & CEO, Phone:
604.684.4246, Fax: 604.684.4200, Email: [email protected], Web: www.panoro.com, Renmark
Financial Communications Inc., Scott Logan, Account Manager, Phone: 416.644.2020 /
212.812.7680, Email: [email protected], Web: www.renmarkfinancial.com
CO: Panoro Minerals Ltd.
CNW 16:15e 31-AUG-22