Altamira Gold Drills 130m @ 0.5g/t Gold in Step-Out Hole 110m North of the Maria Bonita Mineral Resource, Within the 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, Other
Extracted
2026-09-13 10:54:39 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Altamira Gold Corp. reported significant step-out drill results from hole MBA037, which intersected 130m @ 0.5 g/t gold, extending the Maria Bonita resource to the north. The results confirm the presence of porphyry-hosted mineralization 110m north of the current resource boundary.

Reasoning: The drill hole MBA037 successfully extended the known mineralized footprint of the Maria Bonita resource to the north with consistent porphyry-hosted gold grades.

Positive factors

  • Step-out extension north of existing resource
  • Wide mineralized intervals
  • Consistent mineralization style with core deposit
  • QA/QC protocols disclosed

Facts used in scoring: 3

Classification and evidence

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Hole MBA037 is located 110m north of the current Maria Bonita mineral resource edge.

Evidence · text

“located 110m north of the edge of the current Maria Bonita mineral resource”

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 specific QA/QC protocols including blanks, standards, duplicates, and third-party check assays.

Evidence · text

“Quality control of drill hole assays follows normal industry procedures of inserting control samples randomly”

Extracted facts

Stored fact records: 3. Some facts used in scoring do not have a stored record.

Drill Results (3)

MBA037Maria Bonita · goldGrade: 0.7Grade Unit: g/tIntercept: 9 mView all details
Link to this fact

Identity

Hole ID
MBA037
Project
Maria Bonita
Commodity
gold
Region
brazil
Reported Region
brazil
Ticker
ALTA

Geometry

Grade
0.7
Grade Unit
g/t
Intercept
9 m
From
39 m
To
48 m
Intercept Depth
39 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
MBA037:39-48
Mining Method
open_pit

Location

Location
Maria Bonita
Azimuth
340 °
Dip
55 °
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-05-20T00:00:00.000Z

Reasoning: A solid intercept in a step-out hole confirming continuity.

Positive factors

  • Confirms mineralization in step-out zone

Evidence · text

“MBA037 returned 9m @ 0.7 g/t gold from 39m”

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

MBA037Maria Bonita · goldGrade: 0.5Grade Unit: g/tIntercept: 130 mView all details
Link to this fact

Identity

Hole ID
MBA037
Project
Maria Bonita
Commodity
gold
Region
brazil
Reported Region
brazil
Ticker
ALTA

Geometry

Grade
0.5
Grade Unit
g/t
Intercept
130 m
From
97 m
To
227 m
Intercept Depth
97 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
MBA037:97-227
Mining Method
open_pit

Location

Location
Maria Bonita
Azimuth
340 °
Dip
55 °
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-05-20T00:00:00.000Z

Reasoning: A very wide intercept extending the resource footprint.

Positive factors

  • Significant width
  • Step-out extension

Evidence · text

“130m @ 0.5g/t gold from 97m downhole”

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

MBA037Maria Bonita · goldGrade: 0.8Grade Unit: g/tIntercept: 40 mView all details
Link to this fact

Identity

Hole ID
MBA037
Project
Maria Bonita
Commodity
gold
Region
brazil
Reported Region
brazil
Ticker
ALTA

Geometry

Grade
0.8
Grade Unit
g/t
Intercept
40 m
From
100 m
To
140 m
Intercept Depth
100 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
MBA037:100-140
Mining Method
open_pit

Location

Location
Maria Bonita
Azimuth
340 °
Dip
55 °
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-05-20T00:00:00.000Z

Reasoning: A higher grade portion within the larger wide intercept.

Positive factors

  • Higher grade sub-interval

Evidence · text

“includes 40m @ 0.8g/t gold from 100m down hole depth”

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

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.