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Cordoba Minerals Corp (3)
Symbol CDB
Shares Issued 89,237,671
Close 2023-05-08 C$ 0.48
Market Cap C$ 42,834,082
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Cordoba drills 223 m of 0.60% CuEq at Alacran

2023-05-09 11:10 ET - News Release

Ms. Sarah Armstrong-Montoya reports

CORDOBA MINERALS REPORTS ADDITIONAL IN-FILL DRILLING RESULTS FROM THE ALACRAN COPPER-GOLD-SILVER PROJECT IN COLOMBIA

Cordoba Minerals Corp. has released the latest assay results received from the continuing infill drilling program at the Alacran copper-gold-silver project.

Highlights

Significant intercepts returned from the latest infill drill holes include:

  • ACD174 -- 140.9 metres from 15.6 m to 156.5 m with 0.42 per cent copper (Cu), 0.50 gram per tonne gold (Au) and 2.71 g/t silver (Ag), or 0.70 per cent copper equivalent (CuEq), including:
    • 13.80 m from 59 m to 72.8 m with 1.34 per cent Cu, 4.05 g/t Au and 7.95 g/t Ag, or 3.74 per cent CuEq.
  • ACD177 -- 223 m from 27 m to 250 m with 0.47 per cent Cu, 0.25 g/t Au and 3.85 g/t Ag, or 0.60 per cent CuEq, including:
    • 90.25 m from 79.25 m to 169.50 m with 0.80 per cent Cu, 0.33 g/t Au and 6.84 g/t Ag, or 0.98 per cent CuEq;
    • 27.50 m from 222.5 m to 250 m with 0.36 per cent Cu, 0.28 g/t Au and 2.01 g/t Ag, or 0.52 per cent CuEq.
  • ACD181 -- 104.45 m from 61.55 m to 166 m with 0.58 per cent Cu, 0.23 g/t Au and 2.40 g/t Ag, or 0.69 per cent CuEq, including:
    • 44.11 m from 101.54 m to 145.65 m with 0.86 per cent Cu, 0.42 g/t Au and 3.61 g/t Ag, or 1.08 per cent CuEq.

"As we move towards the end of the infill drilling program, I am pleased that the assay results continue to demonstrate the quality of the Alacran mineral resource model," commented Sarah Armstrong-Montoya, president and chief executive officer of Cordoba. "We continue to see high-grade mineralization in the north and central parts of the Alacran deposit, which could be accessible during the early mining years."

Additional drill holes further confirm the overall life of mine resource grades at the Alacran deposit.

ACD174 and ACD177 tested the central part of the Alacran deposit, and returned grades that are typical of the overall life-of-mine resource grade.

ACD174 returned 0.7 per cent CuEq over 140.9 m from 15.6 m to 156.5 m. The hole demonstrates the local enrichment caused by the north-south-trending structures. These structures intersect carbonate-rich parts of the unit 2 stratigraphy, and result in preferential replacement of carbonates by sulphides, resulting in higher grades of 1.39 per cent Cu, 0.46 g/t Au and 8.85 g/t Ag between 62 m and 63.8 m.

ACD177 returned 0.60 per cent CuEq over 223 m from 27 m to 250 m, and further demonstrates both the broad intercept and local enrichment in the north-south-trending structures, which intersected the carbonate-rich portions of the unit 2 stratigraphy.

Drill holes ACD181, ACD187 and ACD189 have identified a 20 m thick sill in the east end of the Alacran deposit. Although these drill holes intersected the sill, each drill hole also intersected the lower- and higher-grade mineralization on either side of the sill. The local volumes of mineralized material may be affected.

The continuing drilling program will focus on the peripheral infill areas in the south of the Alacran deposit where lower grades are expected as predicted by the prefeasibility block model. The final hydrogeological, geotechnical and infrastructure sterilization holes are expected to be completed within the next few weeks.

Technical information and qualified person

The technical information in this release has been reviewed, verified and approved by Mark Gibson, PGeo, a qualified person for the purpose of National Instrument 43-101 -- Standards of Disclosure for Mineral Project. Mr. Gibson is the chief operating officer of Cordoba and of Ivanhoe Electric Inc., Cordoba's majority shareholder, and is not considered independent under NI 43-101. Mr. Gibson verified the data disclosed, which include a review of the sampling, analytical and test data underlying the information and opinions contained therein.

Quality assurance/quality control

Cordoba uses ALS Minerals Laboratory in Medellin, Colombia, ALS Minerals Laboratory in Lima, Peru, and SGS Colombia SAS in Medellin, Colombia. These labs operate in accordance with ISO/IEC 17025.

Cordoba employs a comprehensive industry-standard quality assurance/quality control (QA/QC) program. PQ and HQ diamond drill core is cut lengthwise into three fractions; one-quarter is sent to geochemistry, half is sent to metallurgy and one-quarter is left behind in a secure facility for future assay verification.

Some sample shipments are delivered to ALS Minerals Laboratory in Medellin, Colombia, where the samples are prepared. Analysis occurs at the ALS Minerals Laboratory in Lima, Peru.

Alternate sample shipments are delivered to SGS Colombia in Medellin, Colombia, where the samples are prepared and analyzed.

Both analytical labs determine the gold by a 50-gram fire assay with an atomic absorption spectroscopy finish. An initial multielement suite comprising copper, molybdenum, silver and additional elements are analyzed by four-acid digestion with an inductively coupled plasma mass spectrometry finish. All samples with copper values over 10,000 parts per million and gold greater than 10 ppm are subjected to an overlimit method for higher grades, which also uses a four-acid digest with an inductively coupled plasma emission spectroscopy finish, and fire test with gravimetric finish. Certified reference materials, blanks and duplicates are randomly inserted at the geologist's discretion and QA/QC geologist's approval into the sample stream to control laboratory performance (15 per cent).

About Cordoba Minerals Corp.

Cordoba Minerals is a mineral exploration company focused on the exploration, development and acquisition of copper and gold projects. Cordoba is jointly developing the Alacran project with JCHX Mining Management Co. Ltd., located in the department of Cordoba, Colombia. Cordoba also holds a 51-per-cent interest in the Perseverance copper project in Arizona, United States, which it is exploring through a joint venture and earn-in agreement.

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