Eloro Resources Ltd. (TSX-V: ELO; OTCQX: ELRRF; FSE: P2QM)
(“Eloro”, or the “Company”) is pleased to announce results
of additional modeling of ground magnetic data and completion of an
initial Induced Polarization/Resistivity survey (“IP/Res”) on the
Casiterita property adjoining the Iska Iska Silver-Tin Polymetallic
property (“Iska Iska”) to the southwest. These new data, combined
with previous magnetic modeling and borehole IP/Res surveys
(“BHIP”) on Iska Iska, have significantly enhanced the
understanding of the overall geological environment on both
properties and outlined major new targets for exploration on the
optioned Casiterita property (see Eloro’s news release dated
November 22, 2022).
Figure 1 is a plan map showing the combined
magnetic analytical signal for Iska Iska and Casiterita. These data
strongly suggest that an intrusive body approximately 5 km
long by 3 km wide extends across both properties.
Figure 2, is a longitudinal section of an
updated 3-D inverse magnetic model incorporating new magnetic data
from Casiterita showing the remarkable continuity of the magnetic
anomaly from the Santa Barbara Deposit area southwards to
Casiterita, a distance of 4.5km. Along this section, late east-west
striking faults progressively down drop the magnetic body to the
south before it is again uplifted across a graben structure
immediately south of Porco-Mina 1-2. It is believed that the
magnetic anomalies to the south potentially reflect a major tin
porphyry for which we see evidence in the drill results on the
southwest side of Santa Barbara and in deep holes where the bottom
intersections typically contain tin.
Five East-West lines of Pole-Dipole IP/Res were
surveyed across from the southern Iska-Iska block into the
Casiterita property with eight 50m dipoles providing a depth of
investigation approaching 200m. Figure 3 is a plan map showing the
3D conductivity model in Iska Iska from BHIP (previously released)
along with the contoured conductivity from the new IP/Res data at
an elevation of 100m below surface on Casiterita. This new anomaly
extends for approximately 1km along strike and is across all five
lines. It is readily evident that the strong conductivity anomaly
outlined on Iska Iska continues southwards onto Casiterita,
reflecting the enormous potential size of the mineralizing system
of the underlying intrusive.
Dr. Bill Pearson, P.Geo., Eloro’s Executive Vice
President, Exploration commented: “Geophysics continues to be a
very effective exploration tool at Iska Iska and now at the
Casiterita property. We plan additional BHIP and IP/Res lines in
the Porco area north of the magnetic anomaly to tie this area to
the major conductive zone further south. Drilling has commenced,
initially in the Porco and Mina 1-2 areas, then will move into the
Casiterita property to test this major target for a potential tin
porphyry once old roads are rehabilitated and drill pads
prepared.”
Dr. Chris Hale, P.Geo., Eloro’s Chief
Geophysicist commented: “The conductor revealed by the Casiterita
IP/Resistivity survey is remarkable both for its strength and its
areal extent. The coincidence of conductive and magnetic anomalies
suggests that pyrrhotite may be responsible for both expressions.
The highly conductive, deep sulphide zone found in Iska Iska BHIP
surveys and intersected in several deep diamond drill holes now
appears to extend southward into Casiterita where the lower
elevation allows it to be detected nearer to surface. This is an
important marker because such sulphide zones commonly occur as
halos around many Bolivian tin porphyry deposits.”
Dr. Osvaldo Arce, P.Geo., General Manager of
Eloro’s Bolivian subsidiary, Minera Tupiza, S.R.L. and an expert on
Bolivian metalliferous deposits notes: “The Iska Iska polymetallic
system is a large multi-stage porphyry deposit overprinted by a
high to intermediate-sulphidation epithermal deposit. It is part of
the extensive Bolivian porphyry tin belt, which follows a NW-SE
structural corridor for some 100 km through Iska Iska
northwestwards including Tasna, Chorolque, Tatasi-Portugalete and
Chocaya-Animas-Siete Suyos mining districts. All of these deposits
are the classic Bolivian silver-tin polymetallic-type.”
Dr. Arce continued: “The deposit at Iska Iska is
centered on granodioritic porphyry stocks, which were postdated by
dacitic volcanic domes and closely associated with large
magmatic-hydrothermal breccias. Alteration-mineralization zoning is
well developed: silicic and argillic alteration overprinted
quartz-tourmaline and sericite assemblages that grade outward to
propylitic alteration. The deposit, which is product of widespread
hydrothermal activity from approximately 14 to 12 million years
ago, is profoundly telescoped. Epithermal overprinting on porphyry
alteration and mineralization is characterized by veins and
fracture filling as well as replacement textures between multiple
episodes of alteration and deposition of sulphide minerals.”
He concluded that: “Iska Iska when compared with
other polymetallic deposits in the region, including the large
systems at Tatasi-Portugalete and Chocaya-Animas-Siete Suyos, is
unique geologically as it is a synthesis of all of these deposit
types, since it includes the highest level mineralized phreatic
breccias down to the much deeper tin porphyry. The Iska Iska system
has been remarkably preserved due to the erosionally resistant
Ordovician quartz sandstone basement rocks and the silicification
associated with the porphyry-epithermal mineralization. It was not
found historically because intense oxidation stripped all the
metals near surface.”
Figure 1: Plan map of Analytical Signal
for Iska Iska and Casiterita showing likely extent of major
magnetic intrusive body.
Figure 2: North-South Longitudinal
Section showing Inverse Magnetic Susceptibility Model.
Figure 3 – Plan Map showing location of
Major Conductivity Anomaly on Iska Iska from BHIP and on the newly
surveyed area on Casiterita. Section A-B is
the modelled conductivity on Line 54200N
Qualified Person
Dr. Osvaldo Arce, P. Geo., General Manager of
Eloro’s Bolivian subsidiary, Minera Tupiza S.R.L., and a Qualified
Person in the context of NI 43-101, has reviewed and approved the
technical content of this news release. Dr. Bill Pearson, P.Geo.,
Executive Vice President Exploration Eloro, and who has more than
45 years of worldwide mining exploration experience, including
extensive work in South America, manages the overall technical
program, working closely with Dr. Osvaldo Arce, P.Geo. Dr. Quinton
Hennigh, P.Geo., Senior Technical Advisor to Eloro and Independent
Technical Advisor, Mr. Charley Murahwi P. Geo., FAusIMM of Micon
are regularly consulted on technical aspects of the project.
The magnetic survey was carried out by MES
Geophysics using Eloro’s GEM Systems GSM-19W Overhauser
magnetometers. IP/Res surveys were carried out by MES Geophysics
using Eloro’s ELREC-Pro 10 channel IP receiver and GDD 3600 watt IP
transmitter. Dr. Chris Hale, P.Geo. and Mr. John Gilliatt, P.Geo.
of Intelligent Exploration provided the survey design, preparation
of the maps and interpretation of data processed and quality
reviewed by Mr. Rob McKeown, P. Geo. of MES Geophysics. Messrs.
Hale, Gilliatt and McKeown are Qualified Persons as defined under
NI 43-101.
About Iska Iska
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. Through its Bolivian subsidiary,
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 located in the same 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 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 DHK-15 which returned 129.60 g Ag eq/t
over 257.5m (29.53g Ag/t, 0.078g Au/t, 1.45%Zn, 0.59%Pb, 0.080%Cu,
0.056%Sn, 0.0022%In and 0.0064% Bi) from 0.0m to 257.5m. Subsequent
drilling has confirmed significant values of Ag-Sn polymetallic
mineralization in the SBBP and the adjacent CBP. A substantive
mineralized envelope which is open along strike and down-dip
extends around both major breccia pipes. Continuous channel
sampling of the Santa Barbara Adit located to the east of SBBP
returned 442 g Ag eq/t (164.96 g Ag/t, 0.46%Sn, 3.46% Pb and 0.14%
Cu) over 166m including 1,092 g Ag eq/t (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, 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. In its September 20, 2022
press release, the Company reported that new downhole geophysical
data have significantly extended the strike length of the
high-grade zone at Santa Barbara a further 250m along strike to the
south-southeast from existing drilling. The 3D inverse magnetic
model which correlates very strongly with the conductive zone
suggested that the high-grade feeder zone may extend across the
entire caldera for as much as a further 1 km along strike for a
total potential strike length of at least 2 km. As reported, the
definition drill program was modified to sectionally drill this
potential extension to define a major open pittable deposit in the
valley of the caldera. As a result, the estimated completion date
for the maiden National Instrument 43-101 mineral resource was
pushed back to the end of Q1 2023.
The Company completed 84,495m in 122 drill holes
for the definition drill program in the Santa Barbara target area
as announced on November 27, 2022.
On November 22, 2022, Eloro announced the
acquisition of the Mina Casiterita and Mina Hoyada properties
covering 14.75 km2 southwest and west of Iska Iska. These
properties connect with the TUP-3 and TUP-6 claims previously
staked by Eloro. Eloro has also staked additional land in the area.
Following the acquisition, the total land package in the Iska Iska
area to be controlled by Eloro will total 1,935 quadrants covering
483.75 km2.
Artisanal mining in the 1960’s identified high
grade tin (Sn) veins on the Mina Casiterita property that are
hosted in an intrusive dacite. Production from 1962 to 1964 is
reported by the Departamento Nacional de Geología in Bolivia to be
69.85 tonnes grading 50.60% Sn.
Magnetic surveys recently completed by Eloro
have outlined an extensive, near surface, magnetic intrusive body
on the Mina Casiterita property immediately southwest of Iska Iska.
This intrusive hosts the previously mined high-grade tin veins and
is very likely the continuation of the porphyry tin intrusion
projected to be below the epithermal Ag-Sn-Zn-Pb mineralization at
Iska Iska.
The Porco adit from which previously reported
channel sampling returned 103m grading 521 g Ag eq/t (including 117
g Ag/t, 1.44 g Au/t, 0.54% Cu and 0.66% Sn) in altered basement
sediments, is located near the northeast part of the magnetic
anomaly, attesting to the potential strength and high-grade nature
of the mineralized system in the area.
Drilling is planned in the Porco area and on
Mina Casiterita commencing in February 2023 with geological
mapping, sampling and geophysical surveys now in progress on the
full land package across the Iska Iska region.
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. Through its Bolivian subsidiary, 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 Barrick’s Lagunas Norte Gold Mine and Pan
American Silver’s 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 TSXV nor its Regulation Services
Provider (as that term is defined in the policies of the TSXV)
accepts responsibility for the adequacy or accuracy of this
release.
Photos accompanying this announcement are available at:
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