Tertiary Minerals announces results from Phase 4 infill drilling at Zambia project

Original announcement by miningweekly on

Company
Tertiary Minerals
Ticker
Unavailable
Exchange
Unavailable
Region
Zambia
Primary commodity
Silver
Secondary commodities
Copper, Zinc
Document categories
Drill results
Extracted
2026-09-07 14:34:05 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Tertiary Minerals has announced additional Phase 4 infill drilling results from its Mushima North project in Zambia. The results include high-grade silver-equivalent intercepts that extend the known mineralisation at depth within the Discovery zone.

Reasoning: Infill drilling at the Discovery zone has extended mineralisation at depth with high-grade silver-equivalent intercepts, though specific QA/QC protocols are not detailed in this release.

Positive factors

  • Step-Out Extension
  • High-grade intercepts

Negative factors

  • No QA/QC Disclosure

Facts used in scoring: 4

Atlas analysis — Tertiary Minerals: Tertiary Minerals announces results from Phase 4 infill drilling at Zambia project. 53 g/t over 82 m; 105 g/t over 22 m

Classification and evidence

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Results extend the mineralisation at depth beyond the previously defined exploration target.

Evidence · text

“extend the mineralisation at depth with the majority of holes ending in mineralisation”

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: The release does not mention specific QA/QC protocols, lab certification, or QP sign-off.

Evidence · text

“Additional laboratory results are expected over the coming weeks”

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: The announcement explicitly describes the program as Phase 4 infill drilling.

Evidence · text

“Phase 4 infill drilling”

Extracted facts

Stored fact records: 4. Some facts used in scoring do not have a stored record.

Drill Results (4)

Fact 1Mushima North · silverGrade: 53Grade Unit: g/tIntercept: 82 mNeeds review: drill_no_hole_idView all details
Link to this fact

Identity

Project
Mushima North
Commodity
silver
Region
zambia
Reported Region
zambia

Geometry

Grade
53
Grade Unit
g/t
Intercept
82 m
From
7 m
To
89 m
Intercept Depth
7 m

Classification

Sample Type
drill
Group ID
unknown:7-89

QA/QC

QA/QC Methods
standards

Metal Equivalent

Metal Eq. Grade
53
Metal Eq. Unit
g/t silver-equivalent
Assumptions Disclosed
No

Review

Needs Review
Yes
Review Reason
drill_no_hole_id
Interp. Status
scored
Historical
No

Dates

Event date
2026-09-07T00:00:00.000Z

Reasoning: 82m intercept at 53 g/t AgEq is a significant width and grade for this exploration target.

Positive factors

  • Strong intercept width

Evidence · text

“82 m at 53 g/t silver-equivalent (0.88% copper-equivalent) from only 7 m below surface”

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

Metal Equivalent Opaquenegative

Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.

Why it applies: an equivalent grade is reported without its assumptions

Fact 2Mushima North · copperGrade: 0.88Grade Unit: %Intercept: 82 mNeeds review: drill_no_hole_idView all details
Link to this fact

Identity

Project
Mushima North
Commodity
copper
Region
zambia
Reported Region
zambia

Geometry

Grade
0.88
Grade Unit
%
Intercept
82 m
From
7 m
To
89 m
Intercept Depth
7 m

Classification

Sample Type
drill
Group ID
unknown:7-89

QA/QC

QA/QC Methods
standards

Metal Equivalent

Metal Eq. Grade
0.88
Metal Eq. Unit
% copper-equivalent
Assumptions Disclosed
No

Review

Needs Review
Yes
Review Reason
drill_no_hole_id
Interp. Status
scored
Historical
No

Dates

Event date
2026-09-07T00:00:00.000Z

Reasoning: Copper equivalent component of the high-grade silver intercept.

Evidence · text

“82 m at 53 g/t silver-equivalent (0.88% copper-equivalent)”

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

Metal Equivalent Opaquenegative

Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.

Why it applies: an equivalent grade is reported without its assumptions

Fact 3Mushima North · silverGrade: 105Grade Unit: g/tIntercept: 22 mNeeds review: drill_no_hole_idView all details
Link to this fact

Identity

Project
Mushima North
Commodity
silver
Region
zambia
Reported Region
zambia

Geometry

Grade
105
Grade Unit
g/t
Intercept
22 m
From
64 m
To
86 m
Intercept Depth
64 m

Classification

Sample Type
drill
Group ID
unknown:64-86

QA/QC

QA/QC Methods
standards

Metal Equivalent

Metal Eq. Grade
105
Metal Eq. Unit
g/t silver equivalent
Assumptions Disclosed
No

Review

Needs Review
Yes
Review Reason
drill_no_hole_id
Interp. Status
scored
Historical
No

Dates

Event date
2026-09-07T00:00:00.000Z

Reasoning: High-grade intercept of 105 g/t AgEq provides strong support for the higher-grade zone.

Positive factors

  • High grade

Evidence · text

“22 m at 105 g/t silver equivalent (1.75% copper equivalent) from 64 m”

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

Metal Equivalent Opaquenegative

Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.

Why it applies: an equivalent grade is reported without its assumptions

Fact 4Mushima North · copperGrade: 1.75Grade Unit: %Intercept: 22 mNeeds review: drill_no_hole_idView all details
Link to this fact

Identity

Project
Mushima North
Commodity
copper
Region
zambia
Reported Region
zambia

Geometry

Grade
1.75
Grade Unit
%
Intercept
22 m
From
64 m
To
86 m
Intercept Depth
64 m

Classification

Sample Type
drill
Group ID
unknown:64-86

QA/QC

QA/QC Methods
standards

Metal Equivalent

Metal Eq. Grade
1.75
Metal Eq. Unit
% copper equivalent
Assumptions Disclosed
No

Review

Needs Review
Yes
Review Reason
drill_no_hole_id
Interp. Status
scored
Historical
No

Dates

Event date
2026-09-07T00:00:00.000Z

Reasoning: Copper equivalent component of the high-grade silver intercept.

Evidence · text

“22 m at 105 g/t silver equivalent (1.75% copper equivalent)”

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

Metal Equivalent Opaquenegative

Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.

Why it applies: an equivalent grade is reported without its assumptions

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.