Altamira Gold Intersects 395.5m @ 0.4 g/t gold in First Deep Drill Hole at Maria Bonita, Expanding Mineralized System, 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, Resource update
- Extracted
- 2026-08-21 05:28:10 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Altamira Gold reported significant drill results from its first deep hole at the Maria Bonita project, intersecting 395.5m at 0.4 g/t gold. The results demonstrate that the quartz porphyry mineralized system is considerably larger and deeper than previously estimated.
Reasoning: The first deep drill hole (MBA032) successfully intersected a very wide (395.5m) mineralized interval, proving the porphyry system extends significantly at depth.
Positive factors
- significant depth extension of mineralized system
- remarkable continuity of mineralization
- demonstrated porphyry system scale
Facts used in scoring: 8
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: MBA032 is described as the first deep drill hole below the resource, extending the mineralized system at depth.
Evidence · text
“significantly extends the size of the mineralized porphyry system, particularly at depth”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release mentions SGS laboratory, certified references, and blanks.
Evidence · text
“Gold analysis has been conducted by SGS method FAA505... Analytical quality is monitored by certified references and blanks.”
Extracted facts
Stored fact records: 8. Some facts used in scoring do not have a stored record.
Drill Results (8)
MBA032Maria Bonita · goldGrade: 0.4Grade Unit: g/tIntercept: 395.5 mView all detailsHide details
Identity
- Hole ID
- MBA032
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.4
- Grade Unit
- g/t
- Intercept
- 395.5 m
- From
- 44.5 m
- To
- 440 m
- Hole Depth
- 546 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- MBA032:44.5-440.0
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS
- QA/QC Disclosed
- Yes
- QA/QC Methods
- blanks, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-10-15T00:00:00.000Z
Reasoning: 395.5m is an exceptionally wide intercept for a porphyry system, demonstrating significant scale.
Positive factors
- exceptional width
MBA032Maria Bonita · goldGrade: 5.96Grade Unit: g/tView all detailsHide details
Identity
- Hole ID
- MBA032
- Project
- Maria Bonita
- Commodity
- gold
- Ticker
- ALTA
Geometry
- Grade
- 5.96
- Grade Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-10-15T00:00:00.000Z
Reasoning: Highest single assay interval reported in the hole.
Positive factors
- high grade intercept
MBA029Maria Bonita · goldGrade: 0.8Grade Unit: g/tIntercept: 213 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- MBA029
- Project
- Maria Bonita
- Commodity
- gold
- Ticker
- ALTA
Geometry
- Grade
- 0.8
- Grade Unit
- g/t
- Intercept
- 213 m
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2024-05-22T00:00:00.000Z
Dates
- Event date
- 2025-10-15T00:00:00.000Z
Reasoning: Historical reference to previous results.
MBA029Maria Bonita · goldGrade: 1Grade Unit: g/tIntercept: 146 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- MBA029
- Project
- Maria Bonita
- Commodity
- gold
- Ticker
- ALTA
Geometry
- Grade
- 1
- Grade Unit
- g/t
- Intercept
- 146 m
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2024-05-22T00:00:00.000Z
Dates
- Event date
- 2025-10-15T00:00:00.000Z
Reasoning: Historical reference to previous results.
Fact 5Maria 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
- 2025-10-15T00:00:00.000Z
Reasoning: Existing Indicated resource for Maria Bonita.
Fact 6Maria 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
- 2025-10-15T00:00:00.000Z
Reasoning: Existing Inferred resource for Maria Bonita.
Fact 7Cajueiro 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
- 2025-10-15T00:00:00.000Z
Reasoning: Existing Indicated resource for Cajueiro Central.
Fact 8Cajueiro 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
- 2025-10-15T00:00:00.000Z
Reasoning: Existing Inferred resource for Cajueiro Central.
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.