Altamira Gold Intersects High Grade Gold Mineralization in the First Drill Hole at the Guillermo Target and Extends Maria Bonita Mineralization at Depth, 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
- 2026-09-13 11:04:41 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Altamira Gold reported high-grade gold intercepts at the new Guillermo target, including 0.9m @ 18.1 g/t Au. Additionally, drilling at the Maria Bonita resource confirmed mineralization continues at depth, extending the known system by over 100m.
Reasoning: Strong discovery-style drill results at a new target (Guillermo) combined with depth extension at an existing resource (Maria Bonita).
Positive factors
- High-grade gold intercept at new Guillermo target
- Extension of Maria Bonita mineralization at depth
- District-scale exploration success across multiple targets
Negative factors
- True width for Guillermo intercept not yet known
Facts used in scoring: 6
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 0.9m @ 18.1 g/t gold is exceptionally high grade.
Evidence · text
“0.9m @ 18.1g/t gold”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: True width for the Guillermo intercept is not currently known.
Evidence · text
“the true width of the mineralized interval in the drill hole is not currently known”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release details laboratory (SGS Geosol) and QA/QC methods (blanks, standards, duplicates).
Evidence · text
“inserting control samples randomly in the submitted batch, comprising field duplicates, independent reference samples and 'blank' samples.”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: Maria Bonita contains a significant Inferred component.
Evidence · text
“Inferred Resources of 25.64Mt @ 0.44g/t gold”
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Drill Results (4)
GLO-01Guillermo · goldGrade: 4.2Grade Unit: g/tIntercept: 7 mView all detailsHide details
Identity
- Hole ID
- GLO-01
- Project
- Guillermo
- Commodity
- gold
- Region
- brazil
- Reported Region
- brazil
- Ticker
- ALTA
Geometry
- Grade
- 4.2
- Grade Unit
- g/t
- Intercept
- 7 m
- From
- 111 m
- To
- 118 m
- Intercept Depth
- 111 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- GLO-01:111-118
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: High-grade intercept at a new exploration target.
Positive factors
- Strong grade for scout drilling
Evidence · text
“7 metres @ 4.2g/t gold from 111m in drill hole GLO-01”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
GLO-01Guillermo · goldGrade: 18.1Grade Unit: g/tIntercept: 0.9 mView all detailsHide details
Identity
- Hole ID
- GLO-01
- Project
- Guillermo
- Commodity
- gold
- Region
- brazil
- Reported Region
- brazil
- Ticker
- ALTA
Geometry
- Grade
- 18.1
- Grade Unit
- g/t
- Intercept
- 0.9 m
- From
- 117.1 m
- To
- 118 m
- Intercept Depth
- 117.1 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- GLO-01:117.1-118
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Exceptional high-grade interval within the hole.
Positive factors
- Bonanza grade intercept
Evidence · text
“0.9m @ 18.1g/t gold from 117.1m”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
MBA034Maria Bonita · goldGrade: 0.3Grade Unit: g/tIntercept: 75 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- MBA034
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.3
- Grade Unit
- g/t
- Intercept
- 75 m
Classification
- Program
- resource
- Sample Type
- drill
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Significant width confirming depth extension, though grade is marginal.
Positive factors
- Confirms depth extension
Negative factors
- Low grade
Evidence · text
“75 metres @ 0.3 gm/t gold”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
MBA034Maria Bonita · goldGrade: 0.4Grade Unit: g/tIntercept: 33.5 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- MBA034
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- brazil
- Ticker
- ALTA
Geometry
- Grade
- 0.4
- Grade Unit
- g/t
- Intercept
- 33.5 m
Classification
- Program
- resource
- Sample Type
- drill
QA/QC
- Laboratory
- SGS Geosol
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Significant width confirming depth extension, though grade is marginal.
Positive factors
- Confirms depth extension
Negative factors
- Low grade
Evidence · text
“33.5 metres @ 0.4 gm/t gold”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Resource Estimates (2)
indicatedMaria Bonita · goldTonnes: 24190000Grade: 0.46Grade Unit: g/tContained Metal: 357800Contained Unit: ozView all detailsHide details
Identity
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Resource group id
- resource:fab281888d7c233ba19e
Resource Data
- Category
- indicated
- Tonnes
- 24190000
- Grade
- 0.46
- Grade Unit
- g/t
- Contained Metal
- 357800
- Contained Unit
- oz
- Cutoff Grade
- 0.2
- Cutoff Unit
- g/t gold
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Existing indicated resource component.
Evidence · text
“24.19Mt @ 0.46g/t gold (357,800oz)”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
inferredMaria Bonita · goldTonnes: 25640000Grade: 0.44Grade Unit: g/tContained Metal: 362400Contained Unit: ozView all detailsHide details
Identity
- Project
- Maria Bonita
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- ALTA
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Resource group id
- resource:7f259f3cf35bbd8134db
Resource Data
- Category
- inferred
- Tonnes
- 25640000
- Grade
- 0.44
- Grade Unit
- g/t
- Contained Metal
- 362400
- Contained Unit
- oz
- Cutoff Grade
- 0.2
- Cutoff Unit
- g/t gold
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Existing inferred resource component.
Evidence · text
“25.64Mt @ 0.44g/t gold (362,400oz)”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
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.