# Tribeca Resources Discovers New Shallow Copper-Gold System Below Cover at La Higuera with 67 metres of 0.52% Copper, 0.15 g/t Gold Intersected from 71 metres in First Hole into Chirsposo Sur Target Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e Original source: https://www.juniorminingnetwork.com/junior-miner-news/press-releases/3171-tsx-venture/trbc/212383-tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-higuera-with-67-metres-of-0-52-copper-0-15-g-t-gold-intersected-from-71-metres-in-first-hole-into-chirsposo-sur-target.html Publisher: jmn Original announcement: 2026-10-06T21:40:20.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-06T12:20:25.910Z Atlas analysis updated: 2026-10-06T12:20:25.910Z - Company: Tribeca Resources Corporation - Ticker: TRBC - Exchange: TSXV - Region: northern Chile - Primary commodity: Copper - Secondary commodities: Gold, Cobalt - Document categories: Drill results - Extracted: 2026-10-06 12:20:26 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Tribeca Resources has reported its first drill results from the Chirsposo Sur target at the La Higuera IOCG Project in Chile. The CSS001 hole intersected 67 metres of 0.52% Cu and 0.15 g/t Au, including a higher-grade 29m interval of 0.91% Cu and 0.26 g/t Au. Reasoning: First drill hole into the Chirsposo Sur target returned significant copper-gold mineralization, confirming the presence of a new system within the La Higuera IOCG district. - Positive factor: New discovery under cover at Chirsposo Sur target - Positive factor: Strong intercept of 0.91% Cu and 0.26 g/t Au - Positive factor: Mineralization resembles known Gaby target 4km away - Positive factor: Supports district-scale IOCG interpretation - Negative factor: True thickness of intersection is currently unknown - Negative factor: Assays for remaining holes in program are still pending Facts used in scoring: 9 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: The hole CSS001 is the first drill hole into the discrete Chirsposo Sur target, representing a new discovery area. Evidence · text > first of four drill holes completed during the maiden drill program at the discrete Chirsposo Sur target **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: The release discloses the use of field duplicates, standards, and blanks, and names the Cotecna laboratory. Evidence · text > utilizes field duplicates, standards and blanks **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 the true thickness of the mineralized intersection is unknown. Evidence · text > the true thickness of this mineralized intersection is unknown ## Extracted facts Stored fact records: 9. Some facts used in scoring do not have a stored record. ## Drill Results (9) ### CSS001 [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-0) Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · copper #### Identity - Hole ID: CSS001 - Project: Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault - Commodity: copper - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 0.52 - Grade Unit: % - Intercept: 67 m - From: 71 m - To: 138 m - Intercept Depth: 71 m #### Classification - Deposit Type: iocg - Program: exploration - Sample Type: drill - Group ID: CSS001:71-138 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.68 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Solid intercept in a new target area. - Positive factor: Significant width of 67m - Negative factor: True width unknown Evidence · table > 0.52 Context: 67 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### CSS001 [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-1) Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · gold #### Identity - Hole ID: CSS001 - Project: Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault - Commodity: gold - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 0.15 - Grade Unit: g/t - Intercept: 67 m - From: 71 m - To: 138 m - Intercept Depth: 71 m #### Classification - Deposit Type: iocg - Program: exploration - Sample Type: drill - Group ID: CSS001:71-138 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.68 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Gold grade is modest but accompanies significant copper. Evidence · table > 0.15 Context: 67 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### CSS001 [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-2) Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · copper #### Identity - Hole ID: CSS001 - Project: Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault - Commodity: copper - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 0.91 - Grade Unit: % - Intercept: 29 m - From: 75 m - To: 104 m - Intercept Depth: 75 m #### Classification - Deposit Type: iocg - Program: exploration - Sample Type: drill - Group ID: CSS001:75-104 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.16 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Strong high-grade component within the main intercept. - Positive factor: High grade sub-interval Evidence · table > 0.91 Context: 29 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### CSS001 [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-3) Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · gold #### Identity - Hole ID: CSS001 - Project: Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault - Commodity: gold - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 0.26 - Grade Unit: g/t - Intercept: 29 m - From: 75 m - To: 104 m - Intercept Depth: 75 m #### Classification - Deposit Type: iocg - Program: exploration - Sample Type: drill - Group ID: CSS001:75-104 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Higher grade gold component. Evidence · table > 0.26 Context: 29 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### CSS001 [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-4) Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · cobalt #### Identity - Hole ID: CSS001 - Project: Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault - Commodity: cobalt - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 170 - Grade Unit: ppm - Intercept: 67 m - From: 71 m - To: 138 m - Intercept Depth: 71 m #### Classification - Deposit Type: iocg - Program: exploration - Sample Type: drill - Group ID: CSS001:71-138 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.68 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Presence of cobalt as a byproduct. Evidence · table > 170 Context: 67 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### CSS001 [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-5) Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · cobalt #### Identity - Hole ID: CSS001 - Project: Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault - Commodity: cobalt - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 224 - Grade Unit: ppm - Intercept: 29 m - From: 75 m - To: 104 m - Intercept Depth: 75 m #### Classification - Deposit Type: iocg - Program: exploration - Sample Type: drill - Group ID: CSS001:75-104 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Higher cobalt in the high-grade sub-interval. Evidence · table > 224 Context: 29 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### incl. [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-6) La Higuera · copper #### Identity - Hole ID: incl. - Project: La Higuera - Commodity: copper - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 0.91 - Grade Unit: % - Intercept: 29 m - From: 75 m - To: 104 m - Intercept Depth: 75 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: incl.:75-104 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.16 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Expanded from assay table. 0.91 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 26.4 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 0.91 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.91 Context: incl. #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### incl. [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-7) La Higuera · gold #### Identity - Hole ID: incl. - Project: La Higuera - Commodity: gold - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 0.26 - Grade Unit: g/t - Intercept: 29 m - From: 75 m - To: 104 m - Intercept Depth: 75 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: incl.:75-104 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.16 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Expanded from assay table. 0.26 g/t gold is below against the open\_pit mining band \[5, 2, 1, 0.3\] g/t. Grade×width 7.5 g/t·m is below. - Negative factor: 0.26 g/t gold is below the weak threshold \(0.3 g/t\) on the open\_pit mining band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.26 Context: incl. #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### incl. [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--a04d6a13-81b3-47c0-bd56-e559f45b2b5e#fact-drill-facts-8) La Higuera · cobalt #### Identity - Hole ID: incl. - Project: La Higuera - Commodity: cobalt - Region: chile - Reported Region: chile - Ticker: TRBC #### Geometry - Grade: 224 - Grade Unit: ppm - Intercept: 29 m - From: 75 m - To: 104 m - Intercept Depth: 75 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: incl.:75-104 - Mining Method: open\_pit #### QA/QC - Laboratory: Cotecna - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.16 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-06T00:00:00.000Z Reasoning: Expanded from assay table: 224 ppm cobalt, reported in a unit the rubric does not cover \(%\). - Negative factor: Grade unit ppm does not match the cobalt rubric unit %; not scored. Evidence · table > 224 Context: incl. #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: 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.