Eloro Resources Ltd. (TSX: ELO; OTCQX: ELRRF; FSE:
P2QM) (“Eloro”, or the “Company”) is pleased to announce
further assay results from its definition diamond drilling program
in the potential Santa Barbara starter pit area in the Iska Iska
silver-tin polymetallic project in the Potosi Department of
southwestern Bolivia. To date 5,799.4m of diamond drilling have
been completed in eleven (11) holes. PQ core size has been used in
the majority of holes in this program to obtain larger, more
representative core samples.
Hole DSB-74 is the second hole completed into
the tin domain and was collared 100m southeast of discovery hole
DSB-72. Hole DSB-73 is on the northwest edge of the Ag-Zn-Pb
polymetallic domain. Table 1 below lists significant results for
these holes and Figure 1 shows locations of all the definition
drill holes completed to date. Silver equivalent values (g Ag eq/t)
have been calculated using 3-year average metal prices and
preliminary metallurgical recoveries (see note below Table 1 for
more information). Table 2 lists the coordinates of the drill holes
completed.
Hole DSB-74, collared 100m
southeast of previously reported of tin discovery drill hole DSB-72
(see Eloro press release of January 23, 2025) returned a long high
grade tin intersection grading 0.55% Sn over
49.50m from 76.40m to 125.90m within 91.50m
grading 0.34% Sn from 58.40m to 149.90m. Hole DSB-74
contains a second long deeper intersection of 103.5m
grading 0.31% Sn from 181.40m to 284.90m, including
28.5m grading 0.44% Sn from 197.90 to 226.40m.
High grade tin mineralization in Holes DSB-74
and DSB-72 occurs as visible coarse-grained high
temperature cassiterite which is likely to be amenable to gravity
separation. Core from these holes will be used for
additional metallurgical testing.
Tin mineralization is hosted in an extensive
intrusion breccia unit (TIB) that is approximately 750m
long by 450m wide and extends to a depth of least 700m.
Previous wide space reconnaissance drilling has intersected a
number of significant Sn intersections (see Eloro press release
dated January 23, 2025) in this breccia unit which is very
under-drilled.
The intrusive breccia is very likely an offshoot
or apophysis from a large tin porphyry at depth. The likely top of
this tin porphyry is marked by a highly conductive zone that is
interpreted as a likely pyrite-pyrrhotite halo around this
porphyry. Similar pyritic halos have been reported from other major
tin deposits in the Bolivian Tin Belt.
Tom Larsen, Eloro’s CEO, commented: “Hole DSB-74
located 100 meters southeast of high-grade tin hole DSB-72
demonstrates continuity of this evolving coarse grained
cassiterite-rich tin zone within the large intrusion breccia system
which is approximately 750m long by 450m wide and extends to a
depth of at least 700m. Coarse grained cassiterite is readily
amenable to gravity separation in the beneficiation process which
will give rise to higher recoveries than the 50 percent figure
currently being used for tin in the Company’s calculations for
overall metal silver equivalent values per tonne.”
Mr. Larsen further noted that: “The Company's
next phase drilling program will focus on the expansion of this
large coarse grained cassiterite tin corridor that could be
significant in determining overall metal value and economics in the
PEA.”
Hole DSB-73 is on the northern edge of the
Ag-Zn-Pb polymetallic domain where it partially overlaps with the
tin domain. This hole intersected 36.00m grading 13.46 g
Ag/t, 0.86% Zn, 0.19% Pb and 0.15% Sn (74.09 g Ag eq/t)
from 97.10 to 133.10m including a higher-grade section of
16.50m grading 15.91 g Ag/t, 1.13% Zn, 0.20% Pb and 0.25%
Sn (105.84g Ag eq/t) from 115.10m to
131.60m.
Table 1: Definition Diamond Drill Results
as of February 20, 2025, Santa Barbara, Iska, Iska
SANTA BARBARA DEFINITION DIAMOND DRILL RESULTS – TIN
DOMAIN |
Hole No. |
From (m) |
To (m) |
Length (m) |
Ag |
Zn |
Pb |
Sn |
Ag eq |
g/t |
% |
% |
% |
g/t |
DSB-74 |
19.40 |
25.40 |
6.00 |
76.25 |
0.00 |
0.01 |
0.07 |
80.56 |
|
58.40 |
149.90 |
91.50 |
13.90 |
0.00 |
0.03 |
0.34 |
79.47 |
Incl. |
76.40 |
125.90 |
49.50 |
5.91 |
0.00 |
0.03 |
0.55 |
113.50 |
|
181.40 |
284.90 |
103.50 |
16.67 |
0.00 |
0.07 |
0.31 |
77.83 |
Incl. |
197.90 |
226.40 |
28.50 |
9.77 |
0.00 |
0.05 |
0.44 |
95.17 |
|
308.90 |
310.40 |
1.50 |
9.40 |
0.01 |
0.05 |
0.38 |
83.19 |
|
332.15 |
335.15 |
3.00 |
12.60 |
0.00 |
0.95 |
0.19 |
68.66 |
|
391.40 |
395.90 |
4.50 |
42.73 |
0.17 |
0.11 |
0.03 |
52.35 |
|
416.90 |
462.65 |
45.75 |
27.23 |
0.47 |
0.04 |
0.29 |
96.45 |
|
19.40 |
25.40 |
6.00 |
76.25 |
0.00 |
0.01 |
0.07 |
80.56 |
SANTA BARBARA DEFINITION DIAMOND DRILL RESULTS –
POLYMETALLIC DOMAIN |
DSB-73 |
97.10 |
133.10 |
36.00 |
13.46 |
0.86 |
0.19 |
0.15 |
74.09 |
Incl. |
115.10 |
131.60 |
16.50 |
15.91 |
1.13 |
0.20 |
0.25 |
105.84 |
|
145.10 |
161.60 |
16.50 |
13.73 |
0.77 |
0.28 |
0.14 |
72.29 |
|
170.60 |
172.10 |
1.50 |
22.00 |
2.12 |
0.62 |
0.06 |
116.38 |
|
193.10 |
206.60 |
13.50 |
13.78 |
0.31 |
0.07 |
0.11 |
45.14 |
|
215.60 |
218.60 |
3.00 |
14.00 |
0.29 |
0.17 |
0.21 |
67.08 |
|
229.10 |
230.60 |
1.50 |
22.00 |
0.60 |
0.31 |
0.31 |
107.40 |
|
254.60 |
269.60 |
15.00 |
12.90 |
0.21 |
0.11 |
0.16 |
52.50 |
|
323.60 |
329.60 |
6.00 |
37.00 |
0.92 |
0.49 |
0.42 |
155.94 |
|
373.10 |
377.60 |
4.50 |
24.00 |
0.82 |
0.74 |
0.02 |
70.14 |
|
398.60 |
401.60 |
3.00 |
30.50 |
0.26 |
0.07 |
0.15 |
66.26 |
|
424.10 |
427.10 |
3.00 |
87.50 |
0.38 |
0.08 |
0.04 |
98.96 |
|
437.60 |
439.10 |
1.50 |
73.00 |
0.04 |
0.08 |
0.24 |
113.09 |
|
457.10 |
460.10 |
3.00 |
15.50 |
0.16 |
0.29 |
0.21 |
65.70 |
Note: True width is approximately 80% of core
length. Silver equivalent (Ag eq) grades are calculated using
3-year average metal prices of Ag = US$24.14/oz, Zn =
US$1.36/lb , Pb = 0.98/lb and Sn = US$13.74/lb, and
preliminary metallurgical recoveries of Ag = 88%, Zn = 87%,
Pb= 80% and Sn = 50%. In selecting intervals, a cutoff
grade of 30 g Ag eq/t has been used. Lower grade material may be
included in intersections where geological continuity is
warranted.
Figure 1: Location Map of Definition Diamond Drill
Holes, Santa Barbara zone, Iska Iska. The yellow circle highlights
the location of the holes in this release.
Table 2: Summary of Diamond Drill Hole
Coordinates for Drill Holes Reported, Completed and in Progress at
Iska Iska as of February 20, 2025
SUMMARY DIAMOND DRILLING ISKA ISKA |
Hole No. |
Type |
Collar Easting |
Collar Northing |
Elev |
Azimuth |
Angle |
Hole Length (m) |
Santa Barbara Surface Definition Drill Holes Reported and
In Progress |
DSB-68 |
S |
205390 |
7656251 |
4220.0 |
225° |
-50° |
402.9 |
DSB-69 |
S |
205262 |
7656133 |
4291.8 |
225° |
-85° |
502.0 |
DSB-70 |
S |
205460 |
7656319 |
4191.0 |
225° |
-50° |
467.3 |
DSB-71 |
S |
205203 |
7656016 |
4282.0 |
225° |
-85° |
533.7 |
DSB-72 |
S |
205088 |
7656107 |
4341.0 |
225° |
-85° |
653.4 |
DSB-73 |
S |
205291 |
7656269 |
4273.0 |
225° |
-85° |
479.6 |
DSB-74 |
S |
205205 |
7656072 |
4305.6 |
225° |
-75° |
470.5 |
DSB-75 |
S |
205310 |
7656329 |
4257.0 |
225° |
-85° |
605.4 |
DSB-76 |
S |
205022 |
7656003 |
4342.0 |
225° |
-85° |
521.6 |
DSB-77 |
S |
205035 |
7656126 |
4357 |
225° |
-85° |
653.6 |
|
|
|
|
|
|
Subtotal |
5290.0 |
Southeast Extension Exploration Drilling |
DSE-01 |
S |
206198.0 |
7655779.0 |
4000.0 |
225° |
-65° |
509.4 |
|
|
|
|
|
|
Subtotal |
509.4 |
|
|
|
|
|
|
TOTAL |
5,799.4 |
S = Surface; collar coordinates in metres; azimuth and dip in
degrees. Total drilling since start of the definition drilling
program on October 4, 2024 is 5,799.0m in 11 holes. Since the start
of the drilling at Iska Iska on September 20, 2020, a total of
108,997.9m in 162 drill holes (32 underground holes and 130 surface
holes) have been completed. |
Eloro Resources at the PDAC
Eloro will be participating at the PDAC 2025
convention in Toronto and invites you to visit us at Booth 2124
(Investors Exchange) in the South Building, Metro Toronto
Convention Centre from March 2-5, 2025.
Qualified Person (“QP”)
Dr. Bill Pearson, P.Geo., Eloro’s Executive Vice
President, Exploration, and a Qualified Person (“QP”) as defined by
National Instrument (“NI”) 43-101 has reviewed and approved the
technical content of this news release. Dr. Pearson who has more
than 50 years of worldwide mining exploration, development and
production experience, including extensive work in South America,
manages the overall technical program, working closely with Dr.
Osvaldo Arce, P.Geo. Executive Vice President, Latin America for
Eloro and General Manager of Eloro’s Bolivian subsidiary, Minera
Tupiza S.R.L., and a QP in the context of NI 43-101, who has
supervised all field work carried out at Iska Iska.
Eloro utilized both ALS and AHK for drill core
analyses, both of whom are major international accredited
laboratories. Drill samples sent to ALS were prepared in both
ALS Bolivia Ltda’s preparation facility in Oruro, Bolivia and
the preparation facility operated by AHK in Tupiza with pulps sent
to the main ALS Global laboratory in Lima for analysis. Eloro
employs an industry standard QA/QC program with standards, blanks
and duplicates inserted into each batch of samples analyzed with
selected check samples sent to a separate accredited
laboratory.
Drill core samples sent to AHK Laboratories were
prepared in a preparation facility installed and managed by AHK in
Tupiza with pulps sent to the AHK laboratory in Lima, Peru. Check
samples between ALS and AHK are regularly done as a QA/QC check.
AHK is following the same analytical protocols used as with ALS and
with the same QA/QC protocols.
About Iska Iska
The Iska Iska silver-tin polymetallic project is
a road accessible, royalty-free property, wholly controlled by the
Title Holder, Empresa Minera Villegas S.R.L. and is located 48 km
north of Tupiza city, in the Sud Chichas Province of the Department
of Potosi in southern Bolivia. Eloro has an option to earn a 100%
interest in Iska Iska.
Iska Iska is a major silver-tin polymetallic
porphyry-epithermal complex associated with a Miocene possibly
collapsed/resurgent caldera, emplaced on Ordovician age rocks with
major breccia pipes, dacitic domes and hydrothermal breccias. The
caldera is 1.6km by 1.8km in dimension with a vertical extent of at
least 1km. Mineralization age is similar to Cerro Rico de Potosí
and other major deposits such as San Vicente, Chorolque, Tasna and
Tatasi, all located along the same overall geological trend.
Eloro began underground diamond drilling from
the Huayra Kasa underground workings at Iska Iska on September 13,
2020. On November 18, 2020, Eloro announced the discovery of a
significant breccia pipe with extensive silver polymetallic
mineralization just east of the Huayra Kasa underground workings
and a high-grade gold-bismuth zone in the underground workings. On
November 24, 2020, Eloro announced the discovery of the Santa
Barbara Breccia Pipe (SBBP) approximately 150m southwest of the
Huayra Kasa underground workings.
Subsequently, on January 26, 2021, Eloro
announced significant results from the first drilling at the SBBP
including the discovery hole from 0.0m to 257.5m. Subsequent
drilling has confirmed the presence of significant values of Ag-Sn
polymetallic mineralization in the SBBP and the adjacent Central
Breccia Pipe (CBP). A substantive mineralized envelope which is
open along strike and down-dip extends around both major breccia
pipes. Continuous channel sampling along the walls of the Santa
Barbara Adit located to the east of SBBP returned average grades of
164.96 g Ag/t, 0.46%Sn, 3.46% Pb and 0.14% Cu over 166m including
446 g Ag/t, 9.03% Pb and 1.16% Sn over 56.19m. The west end of the
adit intersects the end of the SBBP.
Since the initial discovery hole DHK-15 which
returned 29.53g Ag/t, 0.078g Au/t, 1.45%Zn, 0.59%Pb, 0.080%Cu and
0.056%Sn over 257.5m, Eloro has released a number of significant
drill results in the SBBP and the surrounding mineralized envelope
which, along with geophysical data, has defined an extensive target
zone. On October 17, 2023, Eloro filed the NI 43-101 Technical
Report outlining the initial inferred MRE for Iska Iska, prepared
by independent consultants Micon International Limited. The MRE was
reported in two domains, the Polymetallic (Ag-Zn-Pb) Domain which
is primarily in the east and south of the Santa Barbara deposit and
the Tin (Sn-Ag-Pb) Domain which is primarily in the west and
north.
The Polymetallic Domain is estimated to contain
560Mt at 13.8 g Ag/t, 0.73% Zn & 0.28% Pb at an NSR cutoff of
US$9.20 for potential open pit and an NSR cutoff of US$34.40 for
potential underground. The majority of the mineral resource is
contained in the constraining pit which has a stripping ratio of
1:1. The Polymetallic Domain contains a higher-grade mineral
resource at a NSR cutoff of $US25/t of 132 million tonnes at 1.11%
Zn, 0.50% Pb and 24.3 g Ag/t which has a net NSR value of
US$34.40/t which is 3.75 the estimated operating cost of US$9.20/t.
The Tin Domain which is adjacent to the Polymetallic Domain and
does not overlap, is estimated to contain a mineral resource of
110Mt at 0.12% Sn, 14.2 g Ag/t and 0.14% Pb but is very under
drilled.
Results of the definition drill program which
totalled 5,267.7m in 11 holes were reported on December 18, 2023
and January 11, 2024, respectively. Significant results included
279.22 g Ag/t, 0.47% Pb and 0.43% Sn (339.82g Ag eq/t) over 62.84m
and 33.83 g Ag/t, 1.53% Zn, 0.93% Pb and 0.14% Sn (130.88g Ag eq/t)
over 178.99m including 120.37 g Ag/t, 2.13% Zn, 1.57%
Pb and 0.19% Sn in hole DSB-61; 57.62g Ag/t, 1.26% Zn,
0.94% Pb and 0.12% Sn (139.94g Ag eq/t) over 136.11m in hole DSB-66
and 118.86g Ag/t, 0.35% Zn, 0.35% Pb and 0.15% Sn (152.29g Ag eq/t)
over 81.28m in hole DSB-65. This latter intersection in hole DSB-65
included a very high-grade sample of 5,080g Ag/t, 0.12 g Au/t,
0.26% Zn, 1.34% Pb, 1.53% Cu and 1.27% Sn (4,746.46g Ag eq/t) over
1.46m.
Metallurgical tests reported on January 23, 2024
from a 6.3 tonne PQ drill core bulk sample representative of the
higher grade Polymetallic (Ag-Zn-Pb) Domain returned a
significantly higher average silver value of 91 g Ag/t compared to
the weighted average grade of the original twinned holes at 31 g
Ag/t strongly suggesting that the average silver grade is likely
significantly underreported in the original twinned holes due to
the much smaller sample size.
On January 29, 2024, the Company reported that
the new chargeability high outlined southeast of the MRE open pit
by the expanded induced polarization (IP) survey indicates that the
major mineralized structural corridor that is up to 800m wide
extends a further 600m along strike to the southeast for an overall
strike length of at least 2km. This new area has not been
drilled.
The Company reported on July 30, 2024, that
updated modelling of the potential starter pit area at Santa
Barbara zone highlights the importance of completing additional
drilling to better define the grade and extent of the mineral
resource in this area. Areas with higher-grade resource typically
have much better drilling density but holes outside the core
potential pit area are too widely spaced to give an accurate
estimate of grade.
On September 4, 2024, the Company announced the
restart of definition drilling in the potential starter pit area at
Santa Barbara. Previous drilling has shown that areas with
high-grade mineralization typically have much better drilling
density, whereas holes outside the core area are too widely spaced
to give an accurate grade estimate. This increased drilling density
is particularly important for defining the extent of the high-grade
Ag-bearing and Sn-bearing structures, and for categorizing the
mineral resources from inferred to indicated, which have a major
influence on overall grade and resources that will contribute to
the preliminary economic assessment (“PEA”).
An initial program of 5,700m of diamond drilling
in 13 holes in the Santa Barbara starter pit area is now in
progress to better define the vertical and lateral extent of
high-grade Ag mineralization; fill-in gaps that are presently
categorized as low-grade or waste in the resource model but are
very likely mineralized; expand the higher-grade Sn mineralization
to the west; and complete an additional 1,400m in two large size PQ
holes for further metallurgical testing.
Results from the first definition drill hole
DSB-68 were released on November 26, 2024. This hole intersected
66.90g Ag/t, 0.63% Zn, 0.42% Pb and 0.11% Sn (111.14g Ag
eq/t) over 289.13m including higher grade intervals
of:
- 126.10g
Ag/t, 0.55% Zn, 0.60% Pb and 0.09% Sn (160.72g Ag eq/t) over
122.03m,
- 47.61g
Ag/t, 0.22% Zn, 0.40% Pb and 0.45% Sn (146.06g Ag
eq/t) over 16.51m, and
- 25.52g
Ag/t, 2.19% Zn, 0.65% Pb and 0.10% Sn (129.60g Ag
eq/t) over 7.46m
Further drill results were released on January
6, 2025:
- Hole DSB-69
intersected 127.49g Ag/t, 0.50% Zn, 0.16% Pb and 0.31% Sn
(193.00g Ag eq/t) over 41.25m within a broader interval of
49.71g Ag/t, 0.78% Zn, 0.32% Pb and 0.15% Sn (106.97g Ag
eq/t) over 142.50m.
- Hole DSB-70
intersected, 45.71g Ag/t, 3.11% Zn, 1.91% Pb and 0.23% Sn
(232.35g Ag eq/t) over 81.00m within a broader interval of
30.08g Ag/t, 1.63% Zn 0.98% Pb and 0.13% Sn (127.89g Ag
eq/t) over 255.75m
- Hole DSB-71
intersected 53.17 Ag/t, 0.72% Zn, 0.40% Pb and 0.19% Sn
(116.62 g Ag eq/t) over 45.00m within a broader interval
of 29.26 Ag/t, 0.58% Zn, 0.22% Pb and 0.11% Sn (71.46g Ag
eq/t) over 127.50m.
On January 23, 2025, the Company reported
discovery hole DSB-72 that opens up a major tin zone intersecting
33m grading 1.39% Sn within 87m grading 0.74% Sn. Tin
mineralization is hosted in an extensive intrusion breccia unit
(TIB) that is approximately 750m long by 450m wide and extends to a
depth of at least 700m. Previous wide space reconnaissance drilling
has intersected a number of significant Sn intersections in this
breccia unit which is very under-drilled
High grade tin mineralization in Hole DSB-72
reported here occurs as visible coarse-grained high temperature
cassiterite which is likely to be amenable to gravity separation.
Core from this hole will be used for additional metallurgical
testing. Geophysically, the intrusion breccia has low chargeability
which contrasts considerably with the adjacent later epithermal
Ag-Zn-Pb mineralization which is marked by a strong chargeability
anomaly. The intrusive breccia is very likely an offshoot or
apophysis from a large tin porphyry at depth. The likely top of
this tin porphyry is marked by a highly conductive zone that is
interpreted as a pyrite-pyrrhotite halo around this porphyry.
Similar pyritic halos have been reported from other major tin
deposits in the Bolivian Tin Belt.
With this discovery of a presumed shallow level
apophysis of a tin porphyry at depth, Eloro is in a unique position
of having two discernable different deposit styles juxtaposed
against one another; a very large silver-zinc-lead dominant system
next to a high-grade tin system. While these two systems are likely
genetically related, this means that the Company may potentially
have two world class deposits on the same property.
About Eloro Resources Ltd.
Eloro is an exploration and mine development
company with a portfolio of gold and base-metal properties in
Bolivia, Peru and Quebec. Eloro has an option to acquire a 100%
interest in the highly prospective Iska Iska Property, which can be
classified as a polymetallic epithermal-porphyry complex, a
significant mineral deposit type in the Potosi Department, in
southern Bolivia. A recent NI 43-101 Technical Report on Iska Iska,
which was completed by Micon International Limited, is available on
Eloro’s website and under its filings on SEDAR. Iska Iska is a
road-accessible, royalty-free property. Eloro also owns an 82%
interest in the La Victoria Gold/Silver Project, located in the
North-Central Mineral Belt of Peru some 50 km south of the Lagunas
Norte Gold Mine and the La Arena Gold Mine.
For further information please contact
either Thomas G. Larsen, Chairman and CEO or Jorge Estepa,
Vice-President at (416) 868-9168.
Information in this news release may contain
forward-looking information. Statements containing forward-looking
information express, as at the date of this news release, the
Company’s plans, estimates, forecasts, projections, expectations,
or beliefs as to future events or results and are believed to be
reasonable based on information currently available to the Company.
There can be no assurance that forward-looking statements will
prove to be accurate. Actual results and future events could differ
materially from those anticipated in such statements. Readers
should not place undue reliance on forward-looking information.
Neither the TSX nor its Regulation Services
Provider (as that term is defined in the policies of the TSX)
accepts responsibility for the adequacy or accuracy of this
release.
A photo accompanying this announcement is available at
https://www.globenewswire.com/NewsRoom/AttachmentNg/ca4cf122-46d6-4ad6-ac06-6280ccf4c214
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