Altamira Gold Completes First Deep Drill Hole at Maria Bonita and Extends Size of Alteration Zone at Tavares Norte Target, 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
- Copper, Molybdenum
- Document categories
- Drill results, Other
- Extracted
- 2026-08-21 07:14:07 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Altamira Gold has completed its first deep drill hole at the Maria Bonita target, intersecting over 500m of highly altered porphyritic rocks. Additionally, surface mapping and grab sampling at the Tavares Norte target indicate an extension of the sericite alteration zone and returned high-grade gold (up to 27.5 g/t Au) and copper values.
Reasoning: The completion of the first deep hole (MBA032) showing 500m of alteration and high-grade surface samples at Tavares Norte provide strong exploration momentum, though the actual gold grades for the deep hole are pending.
Positive factors
- significant alteration thickness in deep hole
- high-grade surface grab samples
- extension of known alteration zone
Negative factors
- assay results for primary deep hole are still pending
Facts used in scoring: 6
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The sericite alteration zone at Tavares Norte extends 1.5km further east than previously known.
Evidence · text
“suggests that the sericite alteration zone extends 1.5km further east than previously known”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release mentions gold analysis via SGS method FAA505 and monitoring via 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: 6. Some facts used in scoring do not have a stored record.
Drill Results (6)
MBA032Maria Bonita · goldIntercept: 500 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- MBA032
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Intercept
- 500 m
- From
- 34.3 m
- To
- 534.7 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Mining Method
- open_pit
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2025-09-02T00:00:00.000Z
Reasoning: The hole intersected a very wide zone of alteration, but the actual gold grade is not yet reported.
Positive factors
- significant thickness of alteration
Negative factors
- grades pending
Evidence · text
“intersected over 500 meters of brecciated and highly altered porphyritic intrusive rocks from 34.3m to 534.7m depth”
Tavares Norte GrabTavares Norte · goldGrade: 27.5Grade Unit: g/tNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- Tavares Norte Grab
- Project
- Tavares Norte
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 27.5
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-09-02T00:00:00.000Z
Reasoning: A high-grade gold grab sample was recovered, though grab samples are inherently non-representative.
Positive factors
- high grade intercept
Negative factors
- grab sample not representative
Evidence · text
“maximum of 27.5 g/t Au”
Tavares Norte GrabTavares Norte · copperGrade: 929Grade Unit: ppmNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- Tavares Norte Grab
- Project
- Tavares Norte
- Commodity
- copper
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 929
- Grade Unit
- ppm
Classification
- Sample Type
- surface
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-09-02T00:00:00.000Z
Reasoning: Anomalous copper was found in the same high-grade gold grab sample.
Positive factors
- anomalous copper
Negative factors
- grab sample not representative
Evidence · text
“returned an assay value of 929 ppm Cu”
Morro Verde GrabMorro Verde · goldGrade: 5.2Grade Unit: g/tNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- Morro Verde Grab
- Project
- Morro Verde
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 5.2
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-09-02T00:00:00.000Z
Reasoning: High grade gold grab sample at Morro Verde.
Positive factors
- high grade grab sample
Negative factors
- grab sample not representative
Evidence · text
“maximum value of 5.2 g/t Au”
Morro Verde GrabMorro Verde · molybdenumGrade: 356Grade Unit: ppmNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- Morro Verde Grab
- Project
- Morro Verde
- Commodity
- molybdenum
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 356
- Grade Unit
- ppm
Classification
- Sample Type
- surface
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-09-02T00:00:00.000Z
Reasoning: Anomalous molybdenum found in grab sample.
Positive factors
- anomalous molybdenum
Negative factors
- grab sample not representative
Evidence · text
“returned assay values of 356 ppm Mo”
Morro Verde GrabMorro Verde · copperGrade: 366Grade Unit: ppmNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- Morro Verde Grab
- Project
- Morro Verde
- Commodity
- copper
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Geometry
- Grade
- 366
- Grade Unit
- ppm
Classification
- Sample Type
- surface
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-09-02T00:00:00.000Z
Reasoning: Anomalous copper found in grab sample.
Positive factors
- anomalous copper
Negative factors
- grab sample not representative
Evidence · text
“and 366 ppm Cu”
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.