# Dykes Extend GR Silver's San Marcial Silver Case Toward Depth: 6 Things to Know Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/dykes-extend-gr-silver-s-san-marcial-silver-case-toward-depth-6-things-to-know--b79e3827-8afc-44e1-b5b0-8ee7b0924314 Original source: https://www.cruxinvestor.com/posts/dykes-extend-gr-silvers-san-marcial-silver-case-toward-depth-6-things-to-know Publisher: cruxinvestor Original announcement: 2026-10-02T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-02T08:17:18.772Z Atlas analysis updated: 2026-10-02T08:17:18.772Z - Company: GR Silver Mining Ltd. - Ticker: GRSL - Exchange: Unavailable - Region: Sinaloa, Mexico - Primary commodity: Silver - Secondary commodities: Lead, Zinc - Document categories: Drill results, Resource update - Extracted: 2026-10-02 08:17:19 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary GR Silver has reported drill results from its San Marcial project in Mexico that extend silver-bearing breccia 300m southeast and 75m deeper than the 2023 resource boundary. The results include a high-grade 11.7m true width intercept at 147 g/t silver and support a model of an underlying intrusive body with potential porphyry-style mineralization at depth. Reasoning: The document reports significant step-out drill results that extend the known silver mineralization both laterally and vertically, supporting a high-potential geological model. - Positive factor: Step-out extension of breccia 300m southeast and 75m deeper - Positive factor: High-grade silver intercepts \(147 g/t over 11.7m true width\) - Positive factor: Geological model suggests potential porphyry transition at depth - Positive factor: Mineralization appears to cut through dykes, supporting intrusive model - Negative factor: Assays pending for 7 holes - Negative factor: Topography constraints for southeast expansion - Negative factor: Security and seasonal delays in drilling pace Facts used in scoring: 4 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: September 2026 holes extended the breccia 300m southeast and 75m deeper than the 2023 boundary. Evidence · text > The September 2026 step-out holes extended the breccia at least 300 m southeast and 75 m deeper than the 2023 resource boundary **True Width Disclosed** Polarity: positive Definition: Actual thickness perpendicular to structure is stated, not just downhole length. Why it applies: The document explicitly reports true widths for the highlighted silver intercepts. Evidence · text > 42.35 meters \(m\) true width ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Drill Results (4) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/dykes-extend-gr-silver-s-san-marcial-silver-case-toward-depth-6-things-to-know--b79e3827-8afc-44e1-b5b0-8ee7b0924314#fact-drill-facts-0) San Marcial · silver Needs review: drill\_no\_hole\_id #### Identity - Project: San Marcial - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: GRSL #### Geometry - Grade: 95 - Grade Unit: g/t - Intercept: 42.35 m - True Width: 42.35 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-02T00:00:00.000Z Reasoning: Large true width intercept with high silver grade. - Positive factor: Significant width and high grade Evidence · text > One interval, 42.35 meters \(m\) true width, averages 95 grams per tonne \(g/t\) silver #### Tags used in scoring **True Width Disclosed** Polarity: positive Definition: Actual thickness perpendicular to structure is stated, not just downhole length. Why it applies: true\_width\_m is 42.35 **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: qaqc\_disclosed is not 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "Recommended Latest Vox Royalty Moves to Bolster Precious Metals Portfolio with $13M Sorby Hills Silver Deal READ October" ### Fact 2 [Link to this fact](https://atlas-staging.minestarters.com/news/dykes-extend-gr-silver-s-san-marcial-silver-case-toward-depth-6-things-to-know--b79e3827-8afc-44e1-b5b0-8ee7b0924314#fact-drill-facts-1) San Marcial · silver Needs review: drill\_no\_hole\_id #### Identity - Project: San Marcial - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: GRSL #### Geometry - Grade: 147 - Grade Unit: g/t - Intercept: 11.7 m - True Width: 11.7 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-02T00:00:00.000Z Reasoning: Strong high-grade silver intercept. - Positive factor: High grade intercept Evidence · text > a second interval, 11.7 m true width at 147 g/t silver #### Tags used in scoring **True Width Disclosed** Polarity: positive Definition: Actual thickness perpendicular to structure is stated, not just downhole length. Why it applies: true\_width\_m is 11.7 **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: qaqc\_disclosed is not 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "Recommended Latest Vox Royalty Moves to Bolster Precious Metals Portfolio with $13M Sorby Hills Silver Deal READ October" ### Fact 3 [Link to this fact](https://atlas-staging.minestarters.com/news/dykes-extend-gr-silver-s-san-marcial-silver-case-toward-depth-6-things-to-know--b79e3827-8afc-44e1-b5b0-8ee7b0924314#fact-drill-facts-2) San Marcial · silver #### Identity - Project: San Marcial - Commodity: silver - Region: mexico - Reported Region: Sinaloa, Mexico - Ticker: GRSL #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-02T00:00:00.000Z Reasoning: Baseline resource figure provided for context. - Positive factor: Significant indicated resource Evidence · text > The 2023 resource holds 46 million ounces of silver indicated #### Tags used in scoring **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: qaqc\_disclosed is not 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "Recommended Latest Vox Royalty Moves to Bolster Precious Metals Portfolio with $13M Sorby Hills Silver Deal READ October" ### Fact 4 [Link to this fact](https://atlas-staging.minestarters.com/news/dykes-extend-gr-silver-s-san-marcial-silver-case-toward-depth-6-things-to-know--b79e3827-8afc-44e1-b5b0-8ee7b0924314#fact-drill-facts-3) San Marcial · silver #### Identity - Project: San Marcial - Commodity: silver - Region: mexico - Reported Region: Sinaloa, Mexico - Ticker: GRSL #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-02T00:00:00.000Z Reasoning: Baseline resource figure provided for context. - Positive factor: Significant inferred resource Evidence · text > and 14 million ounces inferred at San Marcial #### Tags used in scoring **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: qaqc\_disclosed is not 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "Recommended Latest Vox Royalty Moves to Bolster Precious Metals Portfolio with $13M Sorby Hills Silver Deal READ October" ## 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.