Altamira Gold detects new mineralized porphyry at Maria Bonita West, Cajueiro Gold District, Brazil
Original announcement by resourceworld on
- Company
- Altamira Gold Corp.
- Ticker
- ALTA
- Exchange
- Unavailable
- Region
- Brazil
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Drill results, Resource update
- Extracted
- 2026-08-25 16:18:15 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 through four additional drill holes. The results, particularly from holes MBA-042 and MBA-043, show wide, continuous gold mineralization that remains open to the west and at depth.
Reasoning: The drilling confirmed a new mineralized porphyry body with significant width and continuity, extending the known system.
Positive factors
- discovery of new mineralized porphyry body
- wide coherent mineralized intersections
- mineralization remains open to the west and at depth
- consistent gold grades
Negative factors
- low grades relative to underground thresholds
Facts used in scoring: 10
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”
Extracted facts
Stored fact records: 10. Some facts used in scoring do not have a stored record.
Drill Results (10)
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
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.4
- Grade Unit
- g/t
- Intercept
- 36.2 m
- From
- 0 m
- To
- 36.2 m
Classification
- Sample Type
- drill
- Group ID
- MBA-042:0-36.2
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Wide intercept from surface in a new porphyry body.
Positive factors
- intercepts from surface
Evidence · text
“36.2 metres at 0.4 g/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
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.3
- Grade Unit
- g/t
- Intercept
- 45.4 m
- From
- 61.9 m
- To
- 107.3 m
Classification
- Sample Type
- drill
- Group ID
- MBA-042:61.9-107.3
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Continuous mineralization in the new porphyry body.
Evidence · text
“45.4 metred at 0.3 g/t gold from 61.9 metres 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
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.3
- Grade Unit
- g/t
- Intercept
- 200.4 m
- From
- 113.2 m
- To
- 313.6 m
Classification
- Sample Type
- drill
- Group ID
- MBA-042:113.2-313.6
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Extremely wide continuous intersection confirming the porphyry scale.
Positive factors
- very wide intercept
Evidence · text
“200.4 metres at 0.3 g/t gold from 113.2 metres 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
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.4
- Grade Unit
- g/t
- Intercept
- 231.5 m
- From
- 93 m
- To
- 324.5 m
Classification
- Sample Type
- drill
- Group ID
- MBA-043:93-324.5
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Significant width confirming the extent of the new porphyry body.
Positive factors
- very wide intercept
Evidence · text
“MBA-043 intersected 231.5 metres at 0.4 g/t gold from 93 metres 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
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.5
- Grade Unit
- g/t
- Intercept
- 70.6 m
Classification
- Sample Type
- drill
- Mining Method
- open_pit
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Historical reference to previous discovery in the same system.
Evidence · text
“previously detected in hole MBA-036 (70.6m at 0.5g/t gold)”
MBA-037Maria Bonita West · goldGrade: 0.5Grade Unit: g/tIntercept: 122 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- MBA-037
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.5
- Grade Unit
- g/t
- Intercept
- 122 m
Classification
- Sample Type
- drill
- Mining Method
- open_pit
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Historical reference to previous discovery.
Evidence · text
“intersected in MBA-037 (122m at 0.5 g/t gold)”
MBA-038Maria Bonita West · goldGrade: 0.3Grade Unit: g/tIntercept: 74 mNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- MBA-038
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.3
- Grade Unit
- g/t
- Intercept
- 74 m
Classification
- Sample Type
- drill
- Mining Method
- open_pit
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Wide but low grade intercept.
Evidence · text
“MBA038 returned 74.0 metres at 0.3 g/t gold”
MBA-039Maria Bonita West · goldGrade: 0.4Grade Unit: g/tIntercept: 117 mNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- MBA-039
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.4
- Grade Unit
- g/t
- Intercept
- 117 m
Classification
- Sample Type
- drill
- Mining Method
- open_pit
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Wide intercept in the porphyry system.
Evidence · text
“MBA039 returned 117.0 metres at 0.4 g/t gold”
MBA-040Maria Bonita West · goldGrade: 0.1Grade Unit: g/tIntercept: 40 mView all detailsHide details
Identity
- Hole ID
- MBA-040
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.1
- Grade Unit
- g/t
- Intercept
- 40 m
Classification
- Sample Type
- drill
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Weakly mineralized intercept in tuff wall rock.
Negative factors
- low grade
Evidence · text
“MBA040 returned 40.0 metres at 0.1 g.t gold”
MBA-041Maria Bonita West · goldGrade: 0.2Grade Unit: g/tIntercept: 10.6 mView all detailsHide details
Identity
- Hole ID
- MBA-041
- Project
- Maria Bonita West
- Commodity
- gold
- Region
- brazil
- Reported Region
- Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.2
- Grade Unit
- g/t
- Intercept
- 10.6 m
Classification
- Sample Type
- drill
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Weakly mineralized intercept in tuff wall rock.
Negative factors
- narrow and low grade
Evidence · text
“MBA041 returned 10.6 metres at 0.2 g/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.