Aztec Completes Step Out Drilling Program at the Cervantes Project Expanding the Mineralization Footprint ___________________________________________________________________
PO Box 10427 T: 604-685-9770
Suite 1610 – 777 Dunsmuir Street
Vancouver, BC V7Y 1K4 www.aztecminerals.com
Aztec Completes Step Out Drilling Program at the Cervantes Project
Expanding the Mineralization Footprint
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Vancouver, Canada – December 20, 2023 - Aztec Minerals Corp. (AZT: TSX-V, OTCQB: AZZTF) announces
the completion of 13 reverse circulation “RC” holes totaling 1,646 meters (m) at its 100% owned Cervantes
project in Sonora, Mexico. The RC drilling program was increased from an originally planned 11 holes and
RC chip logging of the 13 completed holes indicate favorable geology to support potential expansion of
the gold zone mineralization in the vicinities of the area previously drilled (Figure 1.). The 13 holes were
drilled on the primary California gold zone target with step out drilling focused on expanding the zone to
the north, west, east and south of previous drilling where Aztec had discovered extensive shallow, wide
oxide gold mineralization (please see summary news release dated January 10, 2023).
Drill results are pending with samples from the rece ntly completed holes having been shipped to the
Bureau Veritas Minerals Laboratory for geochemical analysis. Geological lo gging indicated attractive
alteration for potential gold mineralization in multiple holes of the 13 hole program. The visual logging
of the RC chip samples shows evidence of wide zones of oxidized, strongly altered rocks with multiple
veinlets, similar to previously drilled zones at the Cervantes Project.
View Figure 1: Cervantes California Target Expansion RC Drilling Program *
The gold mineralization at Cervantes is characterized by oxidized and unoxidized stockwork veinlets of A,
B, and C types and disseminated sulfide sites, with s ilicification and phyllic alterations, typical of large
porphyry Au hosted deposits in similar geological sett ings. Potassic alteration is present in places and is
associated with sulphide mineralization as well. The company continues exploration on the step-out areas
(Green Zone – Figure 1), to support expansion of the altered, potentia lly gold bearing zones for future
drilling, aiming to define a much larger gold bearing, oxidized, mineralized zone, potentially amenable to
heap leaching.
The thirteen holes were drilled in a general “grid pa ttern” used at the California target with general
orientations of azimuth 250, inclined at 60-75 degrees as “step outs” to expand the California target. The
California porphyry gold-copper mineralization is interpreted to be at the top of a large porphyry system.
Present in the zone is Diagnostic UST (unidirectional solidification textures) and abundant breeched blocks
of metasediments in the intrusives. The mineralization is primarily hosted in two lithologic units, quartz-
feldspar porphyry (Qfp) and hydrothermal breccias (Hbx) associated with it. All thirteen holes completed
in drilling have intersected the mineralized Qfp and Hbx with silicification and phyllic alterations, pervasive
oxidation and, at depth, sulfide mineralization.
The drill program was focused on expanding the California gold zone oxide mineralization, which remains
open laterally in every direction. The California zone porphyry target now has a footprint of over 1 km x
1km exposed to date. The drill targets have utili zed information gathered during the surface roadcut
sampling and detailed 1:200 scale ge ologic mapping program conducted in the first half of 2023. The
surface program enhanced the interpretation to expand the gold mineralization at the primary California
target zone. The mapping confirmed the presence of phyllic and potassic alteration zones seen in previous
drilling and their significance to metallization. The project is currently permitted for an additional 15 drill
holes locations for a second stage of drilling program to be designed subject to results from the recently
completed RC drilling program.
The company plans to continue drilling in 2024 to continue to define the open pit, heap leach amenable
gold potential of the porphyry oxid e cap at California, test the down di p extensions of the silicic-phyllic
alteration in the Qfp intrusive for deeper copper-gold porphyry sulfide mineralization underlying the oxide
cap, and test for extensions of the California North target.
Cervantes Project Overview
Cervantes is a highly prospective porphyry gold-coppe r project located in southeastern Sonora state,
Mexico. The project lies 160 km east of Hermosillo, Sonora, Mexico within the prolific Laramide
porphyry copper belt approximat ely 265 km southeast of the Cana nea porphyry copper-molybdenum
mine (Grupo Mexico). C e r v a n t e s a l s o l i e s a l o n g a n e a s t - w e s t t r e n d i n g g o l d b e l t 6 0 k m w e s t o f t h e
Mulatos epithermal gold mine (Alamos Gold), 35 km northeast of the Osisko San Antonio gold mine, 45
km west of the La India mine (Agnico Eagle), and 40 km northwest of Santana gold deposit (Minera
Alamos). View: Cervantes Project Location Map
Cervantes Project Highlights
Large well-located property (3,649 hectares) with good infrastr ucture, road access, local town,
all private land, water wells on property, grid power nearby
Nine prospective mineralized zones related to high level porphyries and breccias along a 7.0km
east-northeast corridor with multiple intersecting northwest structures
Distinct geophysical anomalies, California target marked by high magnetic and low resistivity
anomalies, high radiometric and chargeability anomalies responding to pervasive alteration
Extensive gold mineralization at California zone, 118 soil samples average 0.44 gpt gold over 900
m by 600 m area, trench rock-channel samples up to 0.47 gpt gold over 222 m
Extensive drilling at the California zone, intersecting gold oxide cap to a classic gold-copper
porphyry system, drill results up to 1.49 gpt gold over 137 m and 1.00 gpt gold over 165m
Excellent gold recoveries from preliminary metallurgical tests on drill core from California zone;
oxide gold recoveries in bottle roll tests range from 75% to 87%
Three-Dimensional IP Survey conducted in 2019, IP chargeability strengthens and broadens to
>500m depth over an area 1100 m by 1200 m and extends strong chargeability anomalies to the
southwest covering Estrella, Purisima East, and Purisima West, coinciding well with alteration and
Au-Cu-Mo soil geochemical anomalies
Additional Targets
Purisima East – outcropping gossans, altered and mineralized diatreme breccias and porphyry intrusions
marked by a 700m by 600m geochemical soil anomaly in 193 samples that average 0.25 gpt gold, a small
historic ‘glory hole’ mine where rock chip sampling returned high-grade mineralization up to 44.6 gpt gold.
Estrella - outcrops of gossan and sulfides in silicified Paleozoic sediments near quartz porphyry dikes with
rock chip samples up to 3.9 gpt gold and 2,010ppm copper.
Purisima West - a mirror image of Purisima East in size and type of gossans, altered and mineralized
breccias and intrusions in association with gold and copper soil anomalies.
Jasper – 2017 trenching returned skarn/replacement-type mineralization up to 0.52% copper and 0.62
gpt gold over a 92.4 m length. In 2022 RC drilling fo und a broad zone of copper – gold mineralization in
JAS22-001 of 0.215% Cu over 69.9 m.
California North – coincident IP chargeability and gold-c opper-molybdenum soil geochemical anomalies
with demonstrated gold – copper mineralization by RC drilling, it is a northern extension of the California
target
Other targets – porphyry alteration and geochemical soil anomalies mark the Jacobo and Brasil prospects
but more work is required to expand and define these targets
* Note : Grade-Thickness in meters-grams/tonne means th e result of multiplying a drill hole intercept
length, measured in meters, by the grade of the gold values in the intercept, the resulting compiled
number is measured in grams/tonne. Grade thickness is not to be construed as gross metal value nor as
a resource estimation. The California target does not have a current, compliant resource estimation at
this point.
Allen David Heyl, B.Sc., CPG., VP Exploration of Aztec, is the Qualified Person under NI43-101, supervised
the Cervantes exploration program. Mr. Heyl has reviewed and approved the technical disclosures in this
news release.
“Simon Dyakowski”
Simon Dyakowski, Chief Executive Officer
Aztec Minerals Corp.
About Aztec Minerals – Aztec is a mineral exploration company focused on two emerging discoveries in
North America. The Cervantes project is an emerging porphyry gold-copper discovery in Sonora, Mexico.
The Tombstone project is an emerging gold-silver discovery with high grade CRD silver-lead-zinc potential
in southern Arizona. Aztec’s shares trade on the TSX-V stock exchange (symbol AZT) and on the OTCQB
(symbol AZZTF).
Contact Information - For more information, please contact:
Simon Dyakowski, President & CEO, Director
Tel: (604) 619-7469
Fax: (604) 685-9744
Email: [email protected]
Website: www.aztecminerals.com
Neither the TSXV nor its Regulation Services Provider (as that te rm is defined in the policies of the TSXV) accepts responsibil ity
for the adequacy or accuracy of this release. No stock exchange, securities commission or other regulatory authority has approved
or disapproved the information contained herein.
Forward-Looking Statements:
Certain statements contained in this press release may cons titute forward-looking statem ents under Canadian securities
legislation. Generally, forward-looking information can be identified by the use of forward-looking terminology such as “expects”
or “it is expected”, or variations of such words and phrases or statements that certain actions, events or results “will” occur. These
forward-looking statements are subject to a number of risks and uncertainties. Actual results may differ materially from result s
contemplated by the forward-looking statem ents. Factors that could cause actual re sults to differ materially from those in
forward-looking statements. Accordingly, the actual events ma y differ materially from those projected in the forward-looking
statements. When relying on forward-looking statements to make decisions, investors and others should carefully consider the
foregoing factors and other uncertainties and should not place undue reliance on such forward-looking statements. The Company
does not undertake to update any forward-looking statements, except as may be required by applicable securities laws.