Mirasol Provides Exploration Update on Sobek Copper-Gold Project in the Vicuña District, Chile

Original announcement by tmx on

Company
Mirasol Resources Ltd.
Ticker
MRZ
Exchange
TSX
Region
Vicuña District, Chile
Primary commodity
Copper
Secondary commodities
Gold, Silver, Molybdenum, Tellurium, Bismuth
Document categories
Drill results
Extracted
2026-08-25 22:32:39 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Mirasol Resources completed its exploration season at the Sobek project in Chile, reporting drill results from hole S46-DDH-002 that confirm the continuation of a hydrothermal system to the south. The update also refines targets at the VN-Zone and Green Wall based on new geophysical and geological interpretations.

Reasoning: The update confirms the southern extension of the 46 South target and provides geological context for the Green Wall trend, though the new drill intercepts are low-grade/anomalous.

Positive factors

  • Confirmation of hydrothermal system continuity to the south
  • Anomalous copper and gold intervals in new drilling
  • High-grade surface mineralization at Green Wall

Negative factors

  • Drill grades are relatively low (anomalous rather than high-grade)

Facts used in scoring: 8

Classification and evidence

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: Release mentions insertions of standards, blanks, and duplicates and names ALS Global as the laboratory.

Evidence · text

“Geochemical assays are obtained and reported under a quality assurance and quality control (QA/QC) program with insertions of controls (standards, blanks and duplicates) submitted to the laboratory.”

QP/CP Signedpositive · Story-specific tag

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: Tim Heenan (MAIG) is named as the Qualified Person who reviewed and approved the disclosure.

Evidence · text

“Mirasol’s disclosure of technical and scientific information in this press release has been reviewed and approved by Tim Heenan (MAIG), the President for the Company, who serves as a Qualified Person”

Extracted facts

Stored fact records: 8. Some facts used in scoring do not have a stored record.

Drill Results (8)

S46-DDH-002Sobek · goldGrade: 0.07Grade Unit: g/tIntercept: 4.5 mView all details
Link to this fact

Identity

Hole ID
S46-DDH-002
Project
Sobek
Commodity
gold
Region
chile
Reported Region
Vicuña District, Chile
Ticker
MRZ

Geometry

Grade
0.07
Grade Unit
g/t
Intercept
4.5 m
From
21.5 m
To
26 m

Classification

Sample Type
drill
Group ID
S46-DDH-002:21.5-26.0

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-22T00:00:00.000Z

Reasoning: Anomalous gold grade in a structural interval.

Evidence · text

“4.50 m averaging 0.07 g/t gold, 223 ppm copper and 22 ppm molybdenum from 21.50 m to 26.00 m”
S46-DDH-002Sobek · copperGrade: 223Grade Unit: ppmIntercept: 4.5 mView all details
Link to this fact

Identity

Hole ID
S46-DDH-002
Project
Sobek
Commodity
copper
Region
chile
Reported Region
Vicuña District, Chile
Ticker
MRZ

Geometry

Grade
223
Grade Unit
ppm
Intercept
4.5 m
From
21.5 m
To
26 m

Classification

Sample Type
drill
Group ID
S46-DDH-002:21.5-26.0

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-22T00:00:00.000Z

Reasoning: Anomalous copper grade in a structural interval.

Evidence · text

“4.50 m averaging 0.07 g/t gold, 223 ppm copper and 22 ppm molybdenum from 21.50 m to 26.00 m”
S46-DDH-002Sobek · molybdenumGrade: 22Grade Unit: ppmIntercept: 4.5 mView all details
Link to this fact

Identity

Hole ID
S46-DDH-002
Project
Sobek
Commodity
molybdenum
Region
chile
Reported Region
Vicuña District, Chile
Ticker
MRZ

Geometry

Grade
22
Grade Unit
ppm
Intercept
4.5 m
From
21.5 m
To
26 m

Classification

Sample Type
drill
Group ID
S46-DDH-002:21.5-26.0

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-22T00:00:00.000Z

Reasoning: Anomalous molybdenum grade in a structural interval.

Evidence · text

“4.50 m averaging 0.07 g/t gold, 223 ppm copper and 22 ppm molybdenum from 21.50 m to 26.00 m”
S46-DDH-002Sobek · goldGrade: 0.14Grade Unit: g/tIntercept: 3 mView all details
Link to this fact

Identity

Hole ID
S46-DDH-002
Project
Sobek
Commodity
gold
Region
chile
Reported Region
Vicuña District, Chile
Ticker
MRZ

Geometry

Grade
0.14
Grade Unit
g/t
Intercept
3 m
From
38 m
To
41 m

Classification

Sample Type
drill
Group ID
S46-DDH-002:38.0-41.0

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-22T00:00:00.000Z

Reasoning: Anomalous gold grade.

Evidence · text

“3.00 m averaging 0.14 g/t gold and 188 ppm copper from 38.00 m to 41.00 m”
S46-DDH-002Sobek · copperGrade: 188Grade Unit: ppmIntercept: 3 mView all details
Link to this fact

Identity

Hole ID
S46-DDH-002
Project
Sobek
Commodity
copper
Region
chile
Reported Region
Vicuña District, Chile
Ticker
MRZ

Geometry

Grade
188
Grade Unit
ppm
Intercept
3 m
From
38 m
To
41 m

Classification

Sample Type
drill
Group ID
S46-DDH-002:38.0-41.0

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-22T00:00:00.000Z

Reasoning: Anomalous copper grade.

Evidence · text

“3.00 m averaging 0.14 g/t gold and 188 ppm copper from 38.00 m to 41.00 m”
S46-DDH-002Sobek · goldGrade: 0.32Grade Unit: g/tIntercept: 1 mView all details
Link to this fact

Identity

Hole ID
S46-DDH-002
Project
Sobek
Commodity
gold
Region
chile
Reported Region
Vicuña District, Chile
Ticker
MRZ

Geometry

Grade
0.32
Grade Unit
g/t
Intercept
1 m
From
39 m
To
40 m

Classification

Sample Type
drill
Group ID
S46-DDH-002:39.0-40.0

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-22T00:00:00.000Z

Reasoning: Best individual gold value in the hole.

Evidence · text

“best individual gold value in the hole of 0.32 g/t gold from 39.00 m to 40.00 m”
S46-DDH-002Sobek · goldGrade: 0.16Grade Unit: g/tIntercept: 3.72 mView all details
Link to this fact

Identity

Hole ID
S46-DDH-002
Project
Sobek
Commodity
gold
Region
chile
Reported Region
Vicuña District, Chile
Ticker
MRZ

Geometry

Grade
0.16
Grade Unit
g/t
Intercept
3.72 m
From
116.8 m
To
120.52 m

Classification

Sample Type
drill
Group ID
S46-DDH-002:116.8-120.52

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-22T00:00:00.000Z

Reasoning: Anomalous gold grade.

Evidence · text

“3.72 m averaging 0.16 g/t gold from 116.80 m to 120.52 m”
S46-DDH-002Sobek · goldGrade: 0.23Grade Unit: g/tIntercept: 2 mView all details
Link to this fact

Identity

Hole ID
S46-DDH-002
Project
Sobek
Commodity
gold
Region
chile
Reported Region
Vicuña District, Chile
Ticker
MRZ

Geometry

Grade
0.23
Grade Unit
g/t
Intercept
2 m
From
117.52 m
To
119.52 m

Classification

Sample Type
drill
Group ID
S46-DDH-002:117.52-119.52

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-22T00:00:00.000Z

Reasoning: Higher grade sub-interval.

Evidence · text

“including 2.00 m averaging 0.23 g/t gold from 117.52 m to 119.52 m”

How Atlas produces this analysis

Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.