Sendero Resources Intersects 114M of 0.84 G/T GOLD Equivalent Including 22M of 1.61 G/T GOLD Equivalent at the Peñas Negras Project IN the Vicuña District
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SENDERO RESOURCES INTERSECTS 114M OF 0.84 G/T GOLD EQUIVALENT INCLUDING 22M OF 1.61 G/T
GOLD EQUIVALENT AT THE PEÑAS NEGRAS PROJECT IN THE VICUÑA DISTRICT
Vancouver, British Columbia – (May 1st, 2024) – Sendero Resources Corp. (TSXV: SEND) (“Sendero” or the
“Company”) is pleased to announce results of three more diamond drillholes from its maiden drilling
program at its 100% owned Peñas Negras Project in the Vicuña District in La Rioja, Argentina. These latest
results from holes PNDH004 to PNDH006 continue to demonstrate the significant potential of the project.
Highlights
• PNDH006 (La Ollita) intersected 364m of 0.51 g/t Gold Equivalent “AuEq” from a shallow depth
of 34m to the bottom of the hole . The upper part of the hole intersected 114m of 0.84 g/t Gold
Equivalent “AuEq” including 22m of 1.61 g/t AuEq
• PNDH004 (La Ollita) intersected 266m of 0.52 g/t AuEq from 96m to post-mineral fault zone. The
upper part of the hole intersected 166m of 0.63 g/t AuEq including 72m of 0.72 g/t AuEq and
20m of 0.82 g/t AuEq
• Maiden drilling at La Ollita PND H003-PNDH008 is confirming the presence of a large, high-level
mineralized advanced argillic epithermal lithocap telescoped on a porphyry gold–copper system.
• All five holes drilled at La Ollita (PNDH003-PNDH008) ended in severe faulting with strong silica-
sericite clay alteration, at what is considered to be the base of the large mineralized lithocap,
and have not tested the porphyry system below.
• PNDH007 and PNDH008 (assays pending) designed to test the large magnetic anomalies
intersected high levels of magnetite and in PNDH008 bornite replacement of the chalcopyrite
was identified
• The e xploration focus going forward at La Ollita is finding the high-grade feeder zone/s into
lithocap and navigating out of the base of the lithocap to test the porphyry system below.
Sendero Executive Chairman, Michael Wood, commented:
“La Ollita is a large telescoped mineral system with multiple phases of porphyry and epithermal
mineralization identified in our initial drilling . We are learning a great deal with each hole that is drilled
and starting to find higher grade zones such as 22m of 1.61 g/t AuEq. The feeder zone into the advanced
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argillic lithocap is the big prize for us where the grade should be substantially higher and often where large
amounts of the metals are contained within lithocap deposits.
We have seen extensive mineralization and alteration telescoping in holes 3, 4 and 6 with multiple phases
of porphyry and epithermal mineralization identified, creating scale with continuous mineralization of
250m+ from beneath the moraine cover until we encountered the extensive fault zone at what we believe
is the base of the lithocap, in all holes drilled to date at La Ollita.”
Watch a news summary from Executive Chairman, Michael Wood below:
Figure 1: Plan View of La Ollita Drill Holes (PNDH003-008) with historic drill holes of significance
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PNDH006
Hole PNDH006, showed telescoping of alteration and mineralization, intersecting a complex of porphyries,
and associated phreatomagmatic breccias hosted in volcanic host rocks. The hole ended in mineralization
at a depth of 398m for a total intersection of 364m averaging 0.51 g/t AuEq (Figure 2 and Table 1).
The alteration in the upper part of the hole is prominently advanced argillic , characterized by quartz -
alunite-sericite with incipient vuggy quartz, which hosted the highest-grade mineralization including 22m
of 1.61 g/t AuEq, with individual metal values of up to 1.28 g/t Au, 115 g/t Ag, 0.42% Cu, 4.73% Zn, 1.18%
Pb and 195 ppm Mo.
Lower in the hole strong potassic alteration (K feldspar-biotite-magnetite) is observed, particularly in early
porphyry dykes with high density quartz veinlets, superimposed by intense sericite-quartz. The late-stage
porphyries, on the other hand, are chloritized with scarce to no quartz veining.
Primary mineralization consists of disseminated and quartz vein -hosted chalcopyrite, overlain by pyrite-
chalcocite-black sulfides filling fractures and breccia matrix. Additionally, numerous intermediate
sulfidation epithermal veins have been identified , composed of quartz and massive sulfides,
predominantly galena and sphalerite together with elevated gold, silver and zinc values. The hole ended
in a fault zone with strong silica-sericite clay alteration, the believed base of the lithocap.
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Figure 2: PNDH006 La Ollita - Grade Distribution, Lithology and Alteration
PNDH004
Hole PNDH004 exhibits similar characteristics to Hole PNDH006 with telescoping of the alteration and
mineralization from beneath the moraine cover returning an intersection of 266m averaging 0.52 g/t
AuEq. Mineralisation terminated when a large post-mineral fault zone was encountered with strong silica-
sericite clay alteration at 362m (Figure 3 and Table 2).
The upper part of the hole intersected a series of porphyries exhibiting potassic alteration (K feldspar and
biotite). An early intermineral porphyry with intense porphyry style quartz veining was recognized as well
as a late-stage porphyry with minimal quartz veining. Associated phreatomagmatic breccias were also
observed. There is an intense general overprinting by epithermal -style advanced argillic alteration,
represented by the association of sericite-quartz-alunite-pyrophyllite in the upper part of the hole. This
telescoped alteration hosts the highest-grade mineralization including an intercept of 166 m of 0.63 g/t
AuEq (see Table 2). Individual metals values up to 0.55 g/t Au, 0.3% Cu and 193 ppm Mo are related to
epithermal overprint on early-stage porphyry mineralization, while individual values up to 1.51 g/t Au, 19
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g/t Ag, 2.26% Zn and 1.04% Pb are related to late-stage intermediate sulphidation veins and epithermal-
related mineralization (black sulfides) filling breccias.
Lower in the hole begins a transition to sericite-illite-clays overprinting the K silicate alteration, hosting
Au-Ag-Cu-Mo mineralization with lower grades extending to 362 m where the hole entered a large post-
mineral fault zone with strong silica-sericite clay alteration, the believed base of the lithocap (Figure 3).
Figure 3: PNDH004 La Ollita - Grade Distribution, Lithology and Alteration
PNDH005
Hole PNDH005, after penetrating the moraine cover, intersected mostly fine volcanic tuff of andesitic
composition, with extensive evidence of tectonic activity manifested by wide intervals of tectonic breccias
hosting Au-Ag-Zn-Pb mineralization.
The alteration observed is silica -clay to advanced argillic, characterized by the general association of
quartz-sericite-alunite-clays, displaying a distinct spotty and wormy texture down to a depth of 193
meters. Minor remnants of K feldspar are suggestive of early potassic alteration. The mineralization is
mostly late -stage, disseminated and within microfractures and breccias, consisting of pyrite + black
sulfides containing Ag-Zn-Pb, with minor amounts of chalcopyrite.
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PNDH005 was drilled in a more northern part of the target and Au-Cu-Ag grades did pick up as the hole
moved further south with the highest grades present in zones of intense fracturing generating crackle
breccias in the volcanic rocks, as well as zones of tectonic breccias (pre -mineral faults). These zones
returned intersections of 24 meters grading 0.52 g/t AuEq, 38 meters at 0.60 g/t AuEq and 12 meters at
0.78 g/t AuEq. (Table 3)
Next Steps
Drilling for the season was completed for a total of 3,124m across 8 holes with results from holes PNDH007
and PNDH008 pending, with depths of 95m and 88m , respectively. PNDH007 was designed to test the
centre of the central magnetic anomaly at La Ollita, while PNDH008 was designed to test the centre of the
eastern magnetic anomaly. Both are sizable magnetic anomalies that are untested by drilling. However
difficult drilling conditions, including heavily fractured rock with strong silica-sericite clay alteration at the
base of the lithocap , resulted in both holes being stopped before testing the magnetic anomalies.
However, both holes showed very encouraging signs, with both showing high-levels of magnetite and in
PNDH008 bornite replacement of the chalcopyrite was identified. These porphyry targets, below the base
of the lithocap, are priority targets to be tested in the next drill program with zoning around the central
magnetic anomaly suggesting it could be the potential centre of the system and a possible high -grade
feeder zone.
The Company plans to complete a geophysical program at La Ollita to gain a greater understanding of the
system at depth, guiding towards the feeder zone/s of the lithocap at La Ollita and to navigate the
extensive faulting seen at the base of the lithocap to test the porphyry complex below. The Company is
planning to conduct a Magnetotelluric (MT) survey, which is a geophysical approach that has been used
successfully elsewhere in the Vicuña District, such as at Filo Del Sol, to identify feeder zones and navigate
the base of the lithocap to test porphyries at depth. The feeder zones into the lithocap can potentially be
a fault and/or an intrusive porphyry body. They typically carry higher metal grades than the lithocap itself
and often host most of the metal in the system. Therefore, finding the feeder zones and navigating out of
the base of the lithocap are the priority exploration goals for the Company now at La Ollita.
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Table 1: PNDH006 Drill Highlights
Table 2: PNDH004 Drill Highlights
Table 3: PNDH005 Drill Highlights
Note: Gold Equivalent Values (“AuEq”) are based on metals prices of $2000/oz Au $4/lb Cu, $25/oz Ag, $20/lb Mo, $1.30/lb Zinc
and $1/lb lead and recovery is assumed to be 100% as no metallurgical data is available.
Click here to see Historical Drill Assays.
Click here to see Drill Collar information.
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About Sendero Resources Corp.
The Company is focused on copper-gold exploration at its 100% owned Peñas Negras Project in the Vicuña
Belt in Argentina. The Peñas Negras Project has similar geological characteristics to other deposits in the
Vicuña Belt and a cluster of porphyry and epithermal targets have been identified on the project. The
Company, through its wholly owned subsidiary, Barton SAS, is the holder of ten granted mining
concessions covering 1 20 km2 in the province of La Rioja , Argentina. The company also has an option
agreement to earn 80% interest on eight granted mining concessions covering 91.7 km2 adjacent to the
East of the Peñas Negras Project. The Company has an experienced management and exploration team
who will use their expertise and operational knowledge to advance the multiple targets across the project.
Further Information
For further information, please contact:
Sendero Resources Corp.
Michael Wood, Executive Chairman
Email: [email protected]
Forward-Looking information
This press release contains "forward-looking information" and "forward-looking statements" (collectively,
"forward-looking statements") within the meaning of applicable Canadian securities legislation. All
statements, other than statements of historical fa ct, are forward -looking statements and are based on
expectations, estimates and projections as at the date of this press release. Forward-looking information
herein includes, without limitation, statements regarding the potential grade and quantity of deposits on
the Property , the Company’s anticipated drilling program and results of its current further drilling
program, the inferred geometry and mineralization of the Property, and the development of the Property
and prospects thereof. Any statement that involves discussions with respect to predictions, expectations,
beliefs, plans, projections, objectives, assumptions, future events or performance (often but not always
using phrases such as "expects", or "does not expect", "is expected" "anticipates" or "does not anticipate",
"plans", "budget", "scheduled", "forecasts", "estimates", "believes" or intends" or variations of such
words and phrases or stating that certain actions, events or results "may" or "could, "would", "might" or
"will" be taken to occur or be achieved) are not statements of historical fact and may be forward-looking
statements. Forward-looking statements are necessarily based upon several estimates and assumptions
that, while considered reasonable, are subject to known and unknown risks, un certainties, and other
factors which may cause the actual results and future events to differ materially from those expressed or
implied by such forward-looking statements. Such factors include, but are not limited to; general business,
economic, competitive, political and social uncertainties; the delay or failure to receive shareholder,
director or regulatory approvals; and actual results of exploration at the Peñas Negras Project which may
differ from anticipated results. There can be no assurance that such statements will prove to be accurate,
as actual results and future events could differ materially from those anticipated in such statements.
Accordingly, readers should not place undue reliance on the forward-looking statements and information
contained in this press release. Except as required by law, the Company does not assume any obligation
to update the forward-looking statements of beliefs, opinions, projections, or other factors, should they
change, except as required by law.