Altamira Gold Intersects High Grade Gold Mineralization within the Cajueiro Mineral Resource and Commences Drilling at the Untested Mombaque and Guillermo Porphyry Targets, Brazil
Original announcement by tmx on
- Company
- Altamira Gold Corp.
- Ticker
- ALTA
- Exchange
- TSX
- Region
- Mato Grosso, Brazil
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Drill results, Resource update
- Extracted
- 2026-08-21 02:49:26 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Altamira Gold has reported high-grade gold drill results from the Cajueiro Central project in Brazil, including a 0.7m @ 19.0 g/t Au intercept that extends the known mineralized zone. The company is also commencing drilling at two previously untested porphyry targets, Mombaque and Guillermo.
Reasoning: The release reports high-grade gold intercepts (up to 19.0 g/t) that extend the known resource and announces the commencement of drilling at new porphyry targets.
Positive factors
- High-grade gold intercepts reported
- Mineralization confirmed extending beyond existing resource boundaries
- New untested porphyry targets being drill tested
Facts used in scoring: 9
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 0.7m @ 19.0 g/t gold is exceptionally high grade for the deposit type.
Evidence · text
“0.7m @ 19.0g/t gold , representing the highest-grade primary intercept reported to date”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release details laboratory (SGS Geosol), assay methods (50g fire assay, ICP), and QC protocols (blanks, standards, duplicates).
Evidence · text
“For all drilling, half core is submitted to SGS Geosol... Quality control of drillhole assays follows normal industry procedures of inserting control samples randomly”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Hole CJO 114 was drilled outside the current resource and confirmed mineralization extension.
Evidence · text
“Hole CJO 114, drilled outside the current resource... confirming that mineralization extends beyond the existing resource boundaries.”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The resource estimate includes a significant Inferred component.
Evidence · text
“12.66Mt @ 1.26 g/t gold for a total of 515,000 oz in the Inferred Resource category”
Extracted facts
Stored fact records: 9. Some facts used in scoring do not have a stored record.
Drill Results (9)
CJO 114Cajueiro Central · goldGrade: 1.02Grade Unit: g/tIntercept: 7.5 mView all detailsHide details
Identity
- Hole ID
- CJO 114
- Project
- Cajueiro Central
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 1.02
- Grade Unit
- g/t
- Intercept
- 7.5 m
- From
- 1.9 m
- To
- 8.9 m
Classification
- Program
- mixed
- Sample Type
- drill
- Group ID
- CJO 114:1.9-8.9
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- duplicates, blanks, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Intercept confirms mineralization extends beyond the current resource boundary.
Positive factors
- Extends mineralization beyond existing resource boundaries
Evidence · text
“Hole CJO 114, drilled outside the current resource, returned 7.5m @ 1.02g/t gold from 1.9m depth”
CJO 114Cajueiro Central · goldGrade: 1.46Grade Unit: g/tIntercept: 5 mView all detailsHide details
Identity
- Hole ID
- CJO 114
- Project
- Cajueiro Central
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 1.46
- Grade Unit
- g/t
- Intercept
- 5 m
- From
- 112 m
- To
- 117 m
Classification
- Program
- mixed
- Sample Type
- drill
- Group ID
- CJO 114:112.0-117.0
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- duplicates, blanks, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Standard intercept confirming extension.
Evidence · text
“5m @ 1.46g/t gold from 112m depth”
CJO 117Cajueiro Central · goldGrade: 6.1Grade Unit: g/tIntercept: 2.3 mView all detailsHide details
Identity
- Hole ID
- CJO 117
- Project
- Cajueiro Central
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 6.1
- Grade Unit
- g/t
- Intercept
- 2.3 m
- From
- 34 m
- To
- 36.3 m
Classification
- Program
- mixed
- Sample Type
- drill
- Group ID
- CJO 117:34.0-36.3
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- duplicates, blanks, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Strong grade intercept within the resource.
Positive factors
- High grade intercept
Negative factors
- Narrow width
Evidence · text
“returned intercepts of 2.3m @ 6.1g/t gold from 34m”
CJO 117Cajueiro Central · goldGrade: 1.7Grade Unit: g/tIntercept: 2.9 mView all detailsHide details
Identity
- Hole ID
- CJO 117
- Project
- Cajueiro Central
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 1.7
- Grade Unit
- g/t
- Intercept
- 2.9 m
- From
- 78 m
- To
- 80.9 m
Classification
- Program
- mixed
- Sample Type
- drill
- Group ID
- CJO 117:78.0-80.9
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- duplicates, blanks, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Standard intercept.
Evidence · text
“2.9m @ 1.7 g/t from 78m depth”
CJO 117Cajueiro Central · goldGrade: 19Grade Unit: g/tIntercept: 0.7 mView all detailsHide details
Identity
- Hole ID
- CJO 117
- Project
- Cajueiro Central
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 19
- Grade Unit
- g/t
- Intercept
- 0.7 m
- From
- 34.9 m
- To
- 35.6 m
Classification
- Program
- mixed
- Sample Type
- drill
- Group ID
- CJO 117:34.9-35.6
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- duplicates, blanks, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Highest-grade primary intercept reported to date in the Baldo sector.
Positive factors
- Bonanza Intercept
Evidence · text
“0.7m @ 19.0g/t gold , representing the highest-grade primary intercept reported to date”
Fact 6Cajueiro Central · goldGrade: 1.02Grade Unit: g/tView all detailsHide details
Identity
- Project
- Cajueiro Central
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 1.02
- Grade Unit
- g/t
Compositing
- Cutoff Grade
- 0.25
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Existing resource component.
Evidence · text
“Cajueiro Central area has a current open pit resource 1 of 5.66Mt @ 1.02 g/t gold for a total of 185,000 oz in the Indicated Resource category”
Fact 7Cajueiro Central · goldGrade: 1.26Grade Unit: g/tView all detailsHide details
Identity
- Project
- Cajueiro Central
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 1.26
- Grade Unit
- g/t
Compositing
- Cutoff Grade
- 0.25
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Speculative category.
Negative factors
- Inferred Resource
Evidence · text
“12.66Mt @ 1.26 g/t gold for a total of 515,000 oz in the Inferred Resource category”
Fact 8Maria Bonita · goldGrade: 0.46Grade Unit: g/tView all detailsHide details
Identity
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.46
- Grade Unit
- g/t
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Existing resource component.
Evidence · text
“Maria Bonita open-pit resource consists of Indicated Resources of 24.19Mt @ 0.46g/t gold (for a total of 357,800oz)”
Fact 9Maria Bonita · goldGrade: 0.44Grade Unit: g/tView all detailsHide details
Identity
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.44
- Grade Unit
- g/t
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-01-28T00:00:00.000Z
Reasoning: Speculative category.
Negative factors
- Inferred Resource
Evidence · text
“and Inferred Resources of 25.64Mt @ 0.44g/t gold (for a total of 362,400oz)”
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.