# 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--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1 Original source: https://www.thenewswire.com/press-releases/1Bz4FXDMy-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: thenewswire Original announcement: 2026-10-06T12:30:51.474Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-06T12:43:10.141Z Atlas analysis updated: 2026-10-06T12:43:10.141Z - Company: Tribeca Resources Corporation - Ticker: TRBC - Exchange: Unavailable - Region: northern Chile - Primary commodity: Copper - Secondary commodities: Gold, Cobalt - Document categories: Drill results - Extracted: 2026-10-06 12:43:10 UTC Narrative sentiment: 0.70 · Bullish ## Minestarters Atlas summary Tribeca Resources has reported significant copper-gold drill results from its first hole \(CSS001\) at the Chirsposo Sur target within the La Higuera IOCG Project in Chile. The hole intersected 67 metres of 0.52% Cu and 0.15 g/t Au, including a higher-grade 29m interval, marking a new discovery under gravel cover. Reasoning: First drill hole into a new target \(Chirsposo Sur\) returned significant copper-gold mineralization, confirming the district-scale IOCG potential of the La Higuera project. - Positive factor: New discovery under cover at Chirsposo Sur target - Positive factor: Strong intercept of 67m @ 0.52% Cu and 0.15 g/t Au - Positive factor: High-grade sub-interval of 29m @ 0.91% Cu and 0.26 g/t Au - Positive factor: IOCG district-scale potential supported by three consecutive successful targets - Negative factor: True width of the mineralized intersection is currently unknown - Negative factor: Assays for remaining holes \(CSS002-CSS004\) are still pending Facts used in scoring: 8 ## Classification and evidence **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: Release mentions field duplicates, standards, and blanks comprising 10% of samples. 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 true thickness of the mineralized intersection is explicitly stated as unknown. Evidence · text > the true thickness of this mineralized intersection is unknown **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: The hole represents a new discovery at the Chirsposo Sur target, expanding the known mineralized footprint. Evidence · text > Discovers New Shallow Copper-Gold System ## Extracted facts Stored fact records: 8. Some facts used in scoring do not have a stored record. ## Drill Results (8) ### CSS001 [Link to this fact](https://atlas-staging.minestarters.com/news/tribeca-resources-discovers-new-shallow-copper-gold-system-below-cover-at-la-hig--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1#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 - Sample Type: drill - Group ID: CSS001:71-138 - Mining Method: open\_pit #### Location - Location: Chirsposo Sur - Easting: 283140 - Northing: 6730266 - Elevation: 516 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: high - Loc. Source: document #### 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: Primary intercept for the new target. - Positive factor: Significant width and grade for an IOCG target - 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--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1#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 - Sample Type: drill - Group ID: CSS001:71-138 - Mining Method: open\_pit #### Location - Location: Chirsposo Sur - Easting: 283140 - Northing: 6730266 - Elevation: 516 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: high - Loc. Source: document #### 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: Secondary metal in the primary intercept. - Positive factor: Co-occurrence with 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--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1#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 - Sample Type: drill - Group ID: CSS001:75-104 - Mining Method: open\_pit #### Location - Location: Chirsposo Sur - Easting: 283140 - Northing: 6730266 - Elevation: 516 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: high - Loc. Source: document #### 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: High-grade core of the intersection. - Positive factor: Strong 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--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1#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 - Sample Type: drill - Group ID: CSS001:75-104 - Mining Method: open\_pit #### Location - Location: Chirsposo Sur - Easting: 283140 - Northing: 6730266 - Elevation: 516 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: high - Loc. Source: document #### 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: High-grade gold component of the sub-interval. - Positive factor: Enhanced gold grade in sub-interval 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--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1#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 - 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: Expanded from assay table: 170 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 > 170 Context: CSS001 #### 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--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1#fact-drill-facts-5) 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 - 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 moderate against the default band \[2.5, 1, 0.5, 0.25\] %. Grade×width 26.4 %·m is weak \(grade alone is moderate; the better of the two is used\). - 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--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1#fact-drill-facts-6) 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 - 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--9e65b64e-e8a8-4bf5-999f-cc6d29a874f1#fact-drill-facts-7) 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 - 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.