Tartana turns up the heat at OK-Bellevue with high-grade copper-gold hits
Original announcement by stockhead on
- Company
- Tartana Minerals
- Ticker
- TAT
- Exchange
- Unavailable
- Region
- Far North Queensland
- Primary commodity
- Copper
- Secondary commodities
- Gold, Silver, Cobalt, Zinc
- Document categories
- Drill results, Other
- Extracted
- 2026-10-15 23:05:23 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Tartana Minerals has reported high-grade copper and gold surface samples across the OK-Bellevue prospects in Far North Queensland. These results, including 17.1% Cu at OK Blocks and 12.0 g/t Au at Hobblechain, will be used to prioritize upcoming scout drilling targets.
Reasoning: The release reports high-grade surface sampling results across four prospects and provides historical drill context, which helps prioritize upcoming scout drilling.
Positive factors
- High-grade surface samples at multiple prospects
- Strong copper and gold grades reported
- Historical drilling provides depth context
Negative factors
- Surface samples only (not drill intercepts)
- Historical drill results lack independent verification
- True widths of historical holes are unknown
Facts used in scoring: 10
Classification and evidence
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 systematic re-evaluation and mapping but does not explicitly detail specific QA/QC protocols like blanks or standards for the new surface samples.
Evidence · text
“systematic re-evaluation of the historical mining district”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: Historical drill results are reported as downhole width with no true width or orientation provided.
Evidence · text
“their true widths are unknown”
Extracted facts
Stored fact records: 10. Some facts used in scoring do not have a stored record.
Drill Results (10)
Fact 1OK-Bellevue · copperGrade: 17.1Grade Unit: %View all detailsHide details
Identity
- Project
- OK-Bellevue
- Commodity
- copper
- Region
- australia_qld
- Reported Region
- Far North Queensland
- Ticker
- TAT
Geometry
- Grade
- 17.1
- Grade Unit
- %
Classification
- Sample Type
- surface
Location
- Location
- OK Blocks
- Loc. Source
- document
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: 17.1% Cu is an exceptionally high grade for a surface sample.
Positive factors
- Exceptional copper grade
Evidence · text
“strongest results included 17.1% copper at OK Blocks”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
Fact 2OK-Bellevue · goldGrade: 0.46Grade Unit: g/tView all detailsHide details
Identity
- Project
- OK-Bellevue
- Commodity
- gold
- Region
- australia_qld
- Reported Region
- Far North Queensland
- Ticker
- TAT
Geometry
- Grade
- 0.46
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Location
- Location
- OK Blocks
- Loc. Source
- document
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: Low grade gold associated with high grade copper sample.
Evidence · text
“returned 17.1% copper, 0.46g/t gold”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
Fact 3OK-Bellevue · silverGrade: 11.7Grade Unit: g/tView all detailsHide details
Identity
- Project
- OK-Bellevue
- Commodity
- silver
- Region
- australia_qld
- Reported Region
- Far North Queensland
- Ticker
- TAT
Geometry
- Grade
- 11.7
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Location
- Location
- OK Blocks
- Loc. Source
- document
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: Trace silver reported in surface sample.
Evidence · text
“11.7g/t silver”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
Fact 4OK-Bellevue · cobaltGrade: 436Grade Unit: ppmView all detailsHide details
Identity
- Project
- OK-Bellevue
- Commodity
- cobalt
- Region
- australia_qld
- Reported Region
- Far North Queensland
- Ticker
- TAT
Geometry
- Grade
- 436
- Grade Unit
- ppm
Classification
- Sample Type
- surface
Location
- Location
- OK Blocks
- Loc. Source
- document
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: Trace cobalt reported in surface sample.
Evidence · text
“436ppm cobalt”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
Fact 5OK-Bellevue · goldGrade: 12Grade Unit: g/tView all detailsHide details
Identity
- Project
- OK-Bellevue
- Commodity
- gold
- Region
- australia_qld
- Reported Region
- Far North Queensland
- Ticker
- TAT
Geometry
- Grade
- 12
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Location
- Location
- Hobblechain
- Loc. Source
- document
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: 12.0 g/t Au is a very strong grade for a surface sample.
Positive factors
- High grade gold intercept
Evidence · text
“12.0g/t gold at Hobblechain”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
Fact 6OK-Bellevue · copperGrade: 10.7Grade Unit: %View all detailsHide details
Identity
- Project
- OK-Bellevue
- Commodity
- copper
- Region
- australia_qld
- Reported Region
- Far North Queensland
- Ticker
- TAT
Geometry
- Grade
- 10.7
- Grade Unit
- %
Classification
- Sample Type
- surface
Location
- Location
- Windmill
- Loc. Source
- document
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: Strong copper grade from surface sample.
Positive factors
- High grade copper
Evidence · text
“returned 10.7% copper”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
Fact 7OK-Bellevue · goldGrade: 0.33Grade Unit: g/tView all detailsHide details
Identity
- Project
- OK-Bellevue
- Commodity
- gold
- Region
- australia_qld
- Reported Region
- Far North Queensland
- Ticker
- TAT
Geometry
- Grade
- 0.33
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Location
- Location
- Windmill
- Loc. Source
- document
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: Low grade gold associated with high grade copper sample.
Evidence · text
“with 0.33g/t gold”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
Fact 8OK-Bellevue · copperGrade: 8.29Grade Unit: %View all detailsHide details
Identity
- Project
- OK-Bellevue
- Commodity
- copper
- Region
- australia_qld
- Reported Region
- Far North Queensland
- Ticker
- TAT
Geometry
- Grade
- 8.29
- Grade Unit
- %
Classification
- Sample Type
- surface
Location
- Location
- OK Dumps
- Loc. Source
- document
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: High grade copper from historical dump material.
Evidence · text
“returned 8.29% and 3.61% copper”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
historicalOK North · copperGrade: 4.2Grade Unit: %Intercept: 9 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- historical
- Project
- OK North
- Commodity
- copper
- Region
- australia_qld
- Reported Region
- australia_qld
- Ticker
- TAT
Geometry
- Grade
- 4.2
- Grade Unit
- %
- Intercept
- 9 m
Classification
- Sample Type
- drill
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: Historical drill intercept reported without verification or true width.
Negative factors
- Not independently verified
- True width unknown
Evidence · text
“historical diamond drilling returned 9m downhole at 4.2% copper”
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
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
historicalOK Mine · copperGrade: 5.91Grade Unit: %Intercept: 4 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- historical
- Project
- OK Mine
- Commodity
- copper
- Region
- australia_qld
- Reported Region
- australia_qld
- Ticker
- TAT
Geometry
- Grade
- 5.91
- Grade Unit
- %
- Intercept
- 4 m
Classification
- Sample Type
- drill
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2026-10-15T00:00:00.000Z
Reasoning: Historical drill intercept reported without verification or true width.
Negative factors
- Not independently verified
- True width unknown
Evidence · text
“another historical hole intersected 4m downhole at 5.91% copper”
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
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
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.