Altamira Gold Expands Mineralized Porphyry System at Maria Bonita Gold Deposit, Cajueiro District, 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, Other
- Extracted
- 2026-08-20 22:28:15 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Altamira Gold has reported successful exploration drilling at the Maria Bonita deposit, with intercepts extending the mineralized porphyry system beyond current resource boundaries. While Maria Bonita shows high potential for expansion, recent scout drilling at the Mombaque prospect returned only narrow, low-grade zones.
Reasoning: Drilling at Maria Bonita confirms the porphyry system extends west and into the wall rock, providing significant expansion potential, although Mombaque results were weak.
Positive factors
- extension of mineralized system beyond existing resource boundaries
- mineralization found in wall rock tuffs increasing tonnage potential
- wide intercepts reported
Negative factors
- scout drilling at Mombaque prospect was disappointing
Facts used in scoring: 4
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Drill Results (4)
MBA039Maria Bonita · goldGrade: 0.4Grade Unit: g/tIntercept: 117 mView all detailsHide details
Identity
- Hole ID
- MBA039
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.4
- Grade Unit
- g/t
- Intercept
- 117 m
- From
- 0 m
- To
- 117 m
Classification
- Sample Type
- drill
- Group ID
- MBA039:0-117
- 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
- 2026-07-23T00:00:00.000Z
Reasoning: Wide 117m intercept extending the system from surface.
Positive factors
- wide intercept
Evidence · text
“Drill hole MBA039 intersected 117m @ 0.4g/t gold from surface”
MBA038Maria Bonita · goldGrade: 0.3Grade Unit: g/tIntercept: 74 mView all detailsHide details
Identity
- Hole ID
- MBA038
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.3
- Grade Unit
- g/t
- Intercept
- 74 m
- From
- 74 m
- To
- 148 m
Classification
- Sample Type
- drill
- Group ID
- MBA038:74-148
- 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
- 2026-07-23T00:00:00.000Z
Reasoning: Significant intercept in wall rock tuffs confirming system extension.
Positive factors
- mineralization in wall rock tuffs
Evidence · text
“Drill hole MBA038 returned 74m @ 0.3g/t gold from 74m downhole”
MBA038Maria Bonita · goldGrade: 1.64Grade Unit: g/tIntercept: 1 mView all detailsHide details
Identity
- Hole ID
- MBA038
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 1.64
- Grade Unit
- g/t
- Intercept
- 1 m
Classification
- Sample Type
- drill
- Group ID
- MBA038:peak-1m
- 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
- 2026-07-23T00:00:00.000Z
Reasoning: High grade peak sample within the 74m interval.
Positive factors
- high peak value
Evidence · text
“The 74m interval from 74m downhole is mineralized throughout, with a peak one-metre sample value of 1.64g/t Au.”
MBA036Maria Bonita · goldGrade: 0.5Grade Unit: g/tIntercept: 130 mView all detailsHide details
Identity
- Hole ID
- MBA036
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.5
- Grade Unit
- g/t
- Intercept
- 130 m
Classification
- Sample Type
- drill
- Group ID
- MBA036:130m
- Mining Method
- open_pit
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-23T00:00:00.000Z
Reasoning: Previously released wide intercept confirming extension.
Positive factors
- wide intercept
Evidence · text
“including 130m @ 0.5 g/t gold in MBA036”
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.