# Tertiary Minerals Discovers New Shallow Copper Mineralised Zone In Zambia Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/tertiary-minerals-discovers-new-shallow-copper-mineralised-zone-in-zambia--6252bb66-4be7-4ce5-8184-9d0babc378ba Original source: https://www.proactiveinvestors.com/companies/news/1097108/tertiary-minerals-discovers-new-shallow-copper-mineralised-zone-in-zambia-1097108.html Publisher: proactiveinvestors Original announcement: 2026-08-18T17:35:15.116Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Tertiary Minerals PLC - Ticker: TYM - Exchange: Unavailable - Region: Zambia - Primary commodity: Copper - Secondary commodities: Silver - Document categories: Drill results, Other - Extracted: 2026-08-19 20:16:43 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Tertiary Minerals has discovered a new shallow copper-mineralised zone, named the Western Zone, at its Mushima North project in Zambia. Preliminary pXRF results from hole 26TMNRC-076 show copper intercepts of up to 0.75%, extending the mineralised footprint beyond the previously defined Exploration Target. Reasoning: The discovery of a new mineralised zone \(Western Zone\) extending beyond the previous target is a positive exploration signal, though the data is currently limited to preliminary pXRF analysis without certified assays or true width disclosures. - Positive factor: discovery of new zone - Positive factor: extension beyond previous exploration target boundary - Negative factor: preliminary pXRF results only - Negative factor: certified laboratory assays still required - Negative factor: true widths currently unknown Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 3 ## Classification and evidence **Apparent Width Only** Polarity: negative Definition: 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 that true widths are currently unknown for the reported intercepts. Evidence · text > true widths currently unknown **No QA/QC Disclosure** Polarity: negative Definition: 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 results are based on preliminary pXRF analysis and the document notes that certified laboratory assays are still required. Evidence · text > The results are preliminary, with certified laboratory assays still required **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: The new Western Zone sits beyond the boundary of the previously defined Discovery Zone. Evidence · text > The newly named Western Zone sits beyond the boundary of the Discovery Zone ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Drill Results (3) ### 26TMNRC-076 [Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-discovers-new-shallow-copper-mineralised-zone-in-zambia--6252bb66-4be7-4ce5-8184-9d0babc378ba#fact-drill-facts-0) Mushima North · copper #### Identity - Hole ID: 26TMNRC-076 - Project: Mushima North - Commodity: copper - Region: zambia - Reported Region: Zambia - Ticker: TYM #### Geometry - Grade: 0.38 - Grade Unit: % - Intercept: 25 m - From: 19 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-076:19-44 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-18T00:00:00.000Z Reasoning: Preliminary pXRF intercept of 25m at 0.38% Cu. - Positive factor: new zone discovery - Negative factor: preliminary pXRF results - Negative factor: true width unknown Evidence · text > Preliminary pXRF analysis from scout hole 26TMNRC-076 returned 25 metres at 0.38% copper from 19 metres downhole ### 26TMNRC-076 [Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-discovers-new-shallow-copper-mineralised-zone-in-zambia--6252bb66-4be7-4ce5-8184-9d0babc378ba#fact-drill-facts-1) Mushima North · copper #### Identity - Hole ID: 26TMNRC-076 - Project: Mushima North - Commodity: copper - Region: zambia - Reported Region: Zambia - Ticker: TYM #### Geometry - Grade: 0.53 - Grade Unit: % - Intercept: 13 m - From: 29 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-076:29-42 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-18T00:00:00.000Z Reasoning: Higher grade sub-interval within the main intercept. - Positive factor: higher grade sub-interval - Negative factor: preliminary pXRF results Evidence · text > including 13 metres at 0.53% from 29 metres ### 26TMNRC-076 [Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-discovers-new-shallow-copper-mineralised-zone-in-zambia--6252bb66-4be7-4ce5-8184-9d0babc378ba#fact-drill-facts-2) Mushima North · copper #### Identity - Hole ID: 26TMNRC-076 - Project: Mushima North - Commodity: copper - Region: zambia - Reported Region: Zambia - Ticker: TYM #### Geometry - Grade: 0.75 - Grade Unit: % - Intercept: 3 m - From: 33 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-076:33-36 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-18T00:00:00.000Z Reasoning: High grade sub-interval within the main intercept. - Positive factor: high grade sub-interval - Negative factor: preliminary pXRF results Evidence · text > and three metres at 0.75% from 33 metres ## 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.