Altamira Gold Discovers New Mineralized Porphyry Body at Maria Bonita West, Cajueiro Gold District, Brazil
Original announcement by orestocks on
- Company
- Altamira Gold Corp.
- Ticker
- ALTA.V
- Exchange
- Unavailable
- Region
- Mato Grosso, Brazil
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Drill results, Other
- Extracted
- 2026-08-25 12:22:08 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Altamira Gold has confirmed a new mineralized porphyry body at the Maria Bonita West project in Brazil. Drill holes MBA-042 and MBA-043 returned wide, coherent gold intercepts, suggesting the system extends further west and at depth.
Reasoning: The drilling confirmed a new porphyry body with significant width and continuity, extending the known mineralized footprint.
Positive factors
- Discovery of a new mineralized porphyry body
- Wide coherent mineralized intersections
- Mineralization remains open to the west and at depth
- Consistent gold grades
Negative factors
- True widths not yet determined
Facts used in scoring: 5
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Drilling confirmed a new mineralized porphyry body to the west of the existing system.
Evidence · text
“confirming the presence of a new mineralized early porphyry body”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release details assay protocols, including blanks, standards, and duplicates, and names a commercial laboratory.
Evidence · text
“comprising field duplicates, independent reference samples and "blank" samples.”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The document explicitly states that true widths have not yet been determined.
Evidence · text
“True widths have not yet been determined.”
Extracted facts
Stored fact records: 5. Some facts used in scoring do not have a stored record.
Drill Results (5)
MBA-042Maria Bonita West · goldGrade: 0.4Grade Unit: g/tIntercept: 36.2 mView all detailsHide details
Identity
- Hole ID
- MBA-042
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA.V
Geometry
- Grade
- 0.4
- Grade Unit
- g/t
- Intercept
- 36.2 m
- From
- 0 m
- To
- 36.2 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- MBA-042:0.0-36.2
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, duplicates, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: A coherent intercept from surface in a new porphyry body.
Positive factors
- Intercept from surface
Evidence · text
“36.2m @ 0.4g/t gold from surface”
MBA-042Maria Bonita West · goldGrade: 0.3Grade Unit: g/tIntercept: 45.4 mView all detailsHide details
Identity
- Hole ID
- MBA-042
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA.V
Geometry
- Grade
- 0.3
- Grade Unit
- g/t
- Intercept
- 45.4 m
- From
- 61.9 m
- To
- 107.3 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- MBA-042:61.9-107.3
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, duplicates, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Wide intercept contributing to the porphyry body definition.
Evidence · text
“45.4m @ 0.3g/t gold from 61.9m depth”
MBA-042Maria Bonita West · goldGrade: 0.3Grade Unit: g/tIntercept: 200.4 mView all detailsHide details
Identity
- Hole ID
- MBA-042
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA.V
Geometry
- Grade
- 0.3
- Grade Unit
- g/t
- Intercept
- 200.4 m
- From
- 113.2 m
- To
- 313.6 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- MBA-042:113.2-313.6
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, duplicates, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Extremely wide intercept confirming the scale of the porphyry body.
Positive factors
- Very wide intercept
Evidence · text
“200.4m @ 0.3g/t gold from 113.2m depth”
MBA-043Maria Bonita West · goldGrade: 0.4Grade Unit: g/tIntercept: 231.5 mView all detailsHide details
Identity
- Hole ID
- MBA-043
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA.V
Geometry
- Grade
- 0.4
- Grade Unit
- g/t
- Intercept
- 231.5 m
- From
- 93 m
- To
- 324.5 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- MBA-043:93.0-324.5
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, duplicates, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Significant wide intercept confirming the western extension.
Positive factors
- Very wide intercept
Evidence · text
“231.5m @ 0.4g/t gold from 93m depth”
MBA-036Maria Bonita West · goldGrade: 0.5Grade Unit: g/tIntercept: 70.6 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- MBA-036
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA.V
Geometry
- Grade
- 0.5
- Grade Unit
- g/t
- Intercept
- 70.6 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- MBA-036:null-null
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, duplicates, standards
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-05-12T00:00:00.000Z
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Historical intercept used as context for the new discovery.
Evidence · text
“MBA-036 (70.6m @ 0.5g/t gold)”
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.