# Sendero Resources Reports Drilling Results at Pe&\#xF1;as Negras Project; Confirms Geological Model and Identifies Geochemical Vectors in Vicu&\#xF1;a Belt, Argentina Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--9314116e-98b5-421c-bdd7-882e56349fa8 Original source: https://money.tmx.com/en/quote/SEND/news/6719746161289797/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms- Publisher: tmx Original announcement: 2026-08-17T11:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Sendero Resources Corp. - Ticker: SEND - Exchange: TSX - Region: La Rioja, Argentina - Primary commodity: Gold - Secondary commodities: Silver, Antimony, Copper, Molybdenum, Lead, Zinc - Document categories: Drill results, Other - Extracted: 2026-09-14 22:29:02 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Sendero Resources has reported reconnaissance drilling results from its Peñas Negras Project in Argentina, confirming a porphyry-epithermal geological model. The program identified gold and silver mineralization, an extensive leached cap, and significant geochemical vectors including antimony. Reasoning: Reconnaissance drilling confirms the geological model and identifies key pathfinder elements, supporting the potential for a larger porphyry-epithermal system. - Positive factor: Confirmation of porphyry-epithermal geological model - Positive factor: Identification of geochemical vectors \(Sb, As, Cu, Mo, Pb, Zn\) - Positive factor: Discovery of extensive leached cap - Positive factor: Strong surface geochemistry in nearby targets - Negative factor: True widths currently unknown - Negative factor: Drilling is reconnaissance/early-stage Facts used in scoring: 5 ## 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 details laboratory \(SGS\), accreditation \(ISO/IEC 17025\), and QA/QC methods \(standards, blanks, duplicates\). Evidence · text > Certified reference materials \(standards\), blank samples, and field duplicates \(quarter core samples\) were inserted into sampling stream at a rate of approximately 8%. **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 unknown at this stage. Evidence · text > True widths are unknown at this stage. ## Extracted facts Stored fact records: 5. Some facts used in scoring do not have a stored record. ## Drill Results (5) ### PNDH-201 [Link to this fact](https://atlas-extractions.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--9314116e-98b5-421c-bdd7-882e56349fa8#fact-drill-facts-0) Peñas Negras · gold #### Identity - Hole ID: PNDH-201 - Project: Peñas Negras - Commodity: gold - Region: argentina - Reported Region: argentina - Ticker: SEND #### Geometry - Grade: 1.04 - Grade Unit: g/t - Intercept: 1.5 m - From: 14 m - To: 15.5 m - Intercept Depth: 14 m #### Classification - Sample Type: drill - Group ID: PNDH-201:14-15.5 - Mining Method: unknown #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: 1.04 g/t Au over 1.5 m is a strong result for a reconnaissance hole in this setting. - Positive factor: High-grade intercept for reconnaissance drilling #### 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 ### PNDH-201 [Link to this fact](https://atlas-extractions.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--9314116e-98b5-421c-bdd7-882e56349fa8#fact-drill-facts-1) Peñas Negras · silver #### Identity - Hole ID: PNDH-201 - Project: Peñas Negras - Commodity: silver - Region: argentina - Reported Region: argentina - Ticker: SEND #### Geometry - Grade: 48 - Grade Unit: g/t - Intercept: 1.5 m - From: 14 m - To: 15.5 m - Intercept Depth: 14 m #### Classification - Sample Type: drill - Group ID: PNDH-201:14-15.5 - Mining Method: unknown #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: 48 g/t Ag is a significant anomaly within the gold intercept. - Positive factor: Strong silver anomaly #### 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 ### PNDH-201 [Link to this fact](https://atlas-extractions.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--9314116e-98b5-421c-bdd7-882e56349fa8#fact-drill-facts-2) Peñas Negras · silver #### Identity - Hole ID: PNDH-201 - Project: Peñas Negras - Commodity: silver - Region: argentina - Reported Region: argentina - Ticker: SEND #### Geometry - Grade: 28.2 - Grade Unit: g/t - Intercept: 1 m - From: 57 m - To: 58 m - Intercept Depth: 57 m #### Classification - Sample Type: drill - Group ID: PNDH-201:57-58 - Mining Method: unknown #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: 28.2 g/t Ag represents a secondary silver anomaly in the hole. - Positive factor: Silver anomaly #### 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 ### PNDH-200 [Link to this fact](https://atlas-extractions.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--9314116e-98b5-421c-bdd7-882e56349fa8#fact-drill-facts-3) Peñas Negras #### Identity - Hole ID: PNDH-200 - Project: Peñas Negras - Region: argentina - Reported Region: argentina - Ticker: SEND #### Classification - Sample Type: drill - Mining Method: unknown #### Location - Loc. Confidence: high #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: The document states all three holes returned anomalous silver, though specific grades for PNDH-200 are not listed in the text. - Positive factor: Silver anomaly present #### 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 ### PNDH-203 [Link to this fact](https://atlas-extractions.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--9314116e-98b5-421c-bdd7-882e56349fa8#fact-drill-facts-4) Peñas Negras #### Identity - Hole ID: PNDH-203 - Project: Peñas Negras - Region: argentina - Reported Region: argentina - Ticker: SEND #### Classification - Sample Type: drill - Mining Method: unknown #### Location - Loc. Confidence: high #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: The document states all three holes returned anomalous silver, though specific grades for PNDH-203 are not listed in the text. - Positive factor: Silver anomaly present #### 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.