Altamira Gold Intersects High Grade Gold Mineralization Within a Second New Porphyry Body at Morro Verde 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
Sulfur
Document categories
Drill results, Other
Extracted
2026-08-21 04:20:36 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Altamira Gold has intersected high-grade gold mineralization at its new Morro Verde target in the Cajueiro District, Brazil. The results include an 8m intercept at 3.5 g/t gold, including 1m at 15.4 g/t gold, within a newly identified quartz porphyry intrusive.

Reasoning: The discovery of a second porphyry body at Morro Verde with high-grade gold intercepts (up to 15.4 g/t) significantly expands the district's known mineralized footprint.

Positive factors

  • discovery of a new porphyry body
  • high-grade intercept (15.4 g/t Au)
  • extension of district-scale mineralization corridor
  • potential for both open-pit and underground mining

Negative factors

  • true width currently unknown

Facts used in scoring: 3

Atlas analysis — Altamira Gold Corp.: Altamira Gold Intersects High Grade Gold Mineralization Within a Second New Porphyry Body at Morro Verde Target, Cajueiro District, Brazil. 3.5 g/t over 8 m

Classification and evidence

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: 15.4 g/t gold is exceptionally high for a porphyry target.

Evidence · table

“15.3”

Context: 1

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: Release mentions standards, blanks, and duplicates, and names SGS Geosol.

Evidence · text

“insertion of blind certified reference materials (standards), blanks and field duplicate samples”

Apparent Width Onlynegative

Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.

Why it applies: The document explicitly states the true width is currently unknown.

Evidence · text

“The true width of the intersection is currently unknown.”

Extracted facts

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

Drill Results (3)

MRV003Morro Verde · goldGrade: 3.5Grade Unit: g/tIntercept: 8 mView all details
Link to this fact

Identity

Hole ID
MRV003
Project
Morro Verde
Commodity
gold
Region
brazil
Reported Region
Mato Grosso, Brazil
Ticker
ALTA

Geometry

Grade
3.5
Grade Unit
g/t
Intercept
8 m
From
176 m
To
184 m

Classification

Program
exploration
Sample Type
drill
Group ID
MRV003:176-184
Mining Method
unknown

QA/QC

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

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-11-19T00:00:00.000Z

Reasoning: 8m @ 3.5 g/t Au is a strong intercept for a porphyry-style target.

Positive factors

  • solid grade and width

Negative factors

  • true width unknown

Evidence · table

“3.5”

Context: 8

MRV003Morro Verde · goldGrade: 15.4Grade Unit: g/tIntercept: 1 mView all details
Link to this fact

Identity

Hole ID
MRV003
Project
Morro Verde
Commodity
gold
Region
brazil
Reported Region
Mato Grosso, Brazil
Ticker
ALTA

Geometry

Grade
15.4
Grade Unit
g/t
Intercept
1 m
From
182 m
To
183 m

Classification

Program
exploration
Sample Type
drill
Group ID
MRV003:182-183
Mining Method
unknown

QA/QC

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

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-11-19T00:00:00.000Z

Reasoning: 15.4 g/t Au is an exceptionally high grade for this deposit type.

Positive factors

  • bonanza grade intercept

Evidence · table

“15.3”

Context: 1

MRV003Morro Verde · sulfurGrade: 1.5Grade Unit: %Intercept: 8 mView all details
Link to this fact

Identity

Hole ID
MRV003
Project
Morro Verde
Commodity
sulfur
Region
brazil
Reported Region
Mato Grosso, Brazil
Ticker
ALTA

Geometry

Grade
1.5
Grade Unit
%
Intercept
8 m
From
176 m
To
184 m

Classification

Program
exploration
Sample Type
drill
Group ID
MRV003:176-184
Mining Method
unknown

QA/QC

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

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-11-19T00:00:00.000Z

Reasoning: Sulfur content noted as part of mineralogy.

Evidence · text

“disseminated pyrite content (1.5-3% S)”

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.