# PolarX strikes wider, richer copper at Caribou Dome Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336 Original source: https://stockhead.com.au/resources/polarx-strikes-wider-richer-copper-at-caribou-dome/ Publisher: stockhead Original announcement: 2026-09-09T02:40:23.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: PolarX - Ticker: PXX - Exchange: Unavailable - Region: Alaska - Primary commodity: Copper - Secondary commodities: Silver - Document categories: Drill results, Other - Extracted: 2026-09-09 03:04:03 UTC Narrative sentiment: 0.90 · Bullish ## Minestarters Atlas summary PolarX has reported exceptional high-grade copper and silver intercepts at the Caribou Dome project in Alaska, notably 24.8m at 9.8% Cu from hole CD26-007. Twin drilling results suggest the current mineral resource may be conservative compared to modern assays. The campaign also demonstrated vertical extension of mineralisation to approximately 500m depth. Reasoning: High-grade copper intercepts \(9.8% Cu\) with substantial width and vertical extension at depth significantly de-risk and potentially upgrade the existing resource. - Positive factor: exceptional copper grades - Positive factor: significant width - Positive factor: step-out extension at depth - Positive factor: twin drilling confirms higher grade/width than historical data - Negative factor: narrow intersection at depth \(3m\) Facts used in scoring: 10 ## Classification and evidence **Bonanza Intercept** Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Why it applies: 9.8% Cu over 24.8m is exceptionally high grade for this deposit type. Evidence · text > CD26-007 returning 24.8m at 9.8% Cu **True Width Disclosed** Polarity: positive Definition: Actual thickness perpendicular to structure is stated, not just downhole length. Why it applies: The document explicitly states estimated true widths for the standout modern intercepts. Evidence · text > CD26-007: 24.8m at 9.8% Cu, estimated true width 16.6m **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: CD26-003 extends known mineralisation approximately 170m vertically below the previous depth. Evidence · text > extending known mineralisation approximately 170m vertically below the previously known deepest mineralisation **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 release does not mention specific QA/QC protocols, lab certification, or QP sign-off. Evidence · text > PolarX is on a roll with a couple of high-grade copper strikes at Caribou Dome. **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: the document describes a flotation route \("concentrate"\) ## Extracted facts Stored fact records: 10. Some facts used in scoring do not have a stored record. ## Drill Results (10) ### CD26-007 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-0) Caribou Dome · copper #### Identity - Hole ID: CD26-007 - Project: Caribou Dome - Commodity: copper - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 9.8 - Grade Unit: % - Intercept: 24.8 m - True Width: 16.6 m - From: 2.4 m - To: 27.2 m - Intercept Depth: 2.4 m #### Classification - Sample Type: drill - Group ID: CD26-007:2.4-27.2 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: 9.8% Cu over 24.8m is an exceptional intercept for this deposit type. - Positive factor: exceptional grade - Positive factor: substantial width Evidence · text > CD26-007 returning 24.8m at 9.8% Cu and 14.5g/t Ag from just 2.4m #### 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 16.6 **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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-007 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-1) Caribou Dome · silver #### Identity - Hole ID: CD26-007 - Project: Caribou Dome - Commodity: silver - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 14.5 - Grade Unit: g/t - Intercept: 24.8 m - True Width: 16.6 m - From: 2.4 m - To: 27.2 m - Intercept Depth: 2.4 m #### Classification - Sample Type: drill - Group ID: CD26-007:2.4-27.2 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Silver is a significant byproduct in this high-grade copper interval. - Positive factor: accompanying high-grade copper Evidence · text > 24.8m at 9.8% Cu and 14.5g/t Ag from just 2.4m #### 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 16.6 **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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-007 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-2) Caribou Dome · copper #### Identity - Hole ID: CD26-007 - Project: Caribou Dome - Commodity: copper - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 13.6 - Grade Unit: % - Intercept: 4.9 m - From: 6.6 m - To: 11.5 m - Intercept Depth: 6.6 m #### Classification - Sample Type: drill - Group ID: CD26-007:6.6-11.5 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: High-grade component of the main intercept. - Positive factor: high-grade sub-interval Evidence · text > 4.9m at 13.6% Cu and 20.4g/t Ag from 6.6m #### 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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-007 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-3) Caribou Dome · silver #### Identity - Hole ID: CD26-007 - Project: Caribou Dome - Commodity: silver - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 20.4 - Grade Unit: g/t - Intercept: 4.9 m - From: 6.6 m - To: 11.5 m - Intercept Depth: 6.6 m #### Classification - Sample Type: drill - Group ID: CD26-007:6.6-11.5 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: High-grade silver component of the sub-interval. - Positive factor: high-grade sub-interval Evidence · text > 4.9m at 13.6% Cu and 20.4g/t Ag from 6.6m #### 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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-004 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-4) Caribou Dome · copper #### Identity - Hole ID: CD26-004 - Project: Caribou Dome - Commodity: copper - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 8.1 - Grade Unit: % - Intercept: 22.6 m - True Width: 16 m - From: 3.7 m - To: 26.3 m - Intercept Depth: 3.7 m #### Classification - Sample Type: drill - Group ID: CD26-004:3.7-26.3 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Strong copper intercept with significant width. - Positive factor: strong grade - Positive factor: substantial width Evidence · text > CD26-004 delivered: 22.6m at 8.1% Cu and 13.5g/t Ag from 3.7m #### 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 16 **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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-004 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-5) Caribou Dome · silver #### Identity - Hole ID: CD26-004 - Project: Caribou Dome - Commodity: silver - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 13.5 - Grade Unit: g/t - Intercept: 22.6 m - True Width: 16 m - From: 3.7 m - To: 26.3 m - Intercept Depth: 3.7 m #### Classification - Sample Type: drill - Group ID: CD26-004:3.7-26.3 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Silver byproduct in a strong copper interval. - Positive factor: accompanying high-grade copper Evidence · text > CD26-004 delivered: 22.6m at 8.1% Cu and 13.5g/t Ag from 3.7m #### 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 16 **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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-004 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-6) Caribou Dome · copper #### Identity - Hole ID: CD26-004 - Project: Caribou Dome - Commodity: copper - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 12.4 - Grade Unit: % - Intercept: 5.8 m - From: 11.1 m - To: 16.9 m - Intercept Depth: 11.1 m #### Classification - Sample Type: drill - Group ID: CD26-004:11.1-16.9 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: High-grade component of the CD26-004 intercept. - Positive factor: high-grade sub-interval Evidence · text > including 5.8m at 12.4% Cu and 21.3g/t Ag from 11.1m #### 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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-004 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-7) Caribou Dome · silver #### Identity - Hole ID: CD26-004 - Project: Caribou Dome - Commodity: silver - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 21.3 - Grade Unit: g/t - Intercept: 5.8 m - From: 11.1 m - To: 16.9 m - Intercept Depth: 11.1 m #### Classification - Sample Type: drill - Group ID: CD26-004:11.1-16.9 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: High-grade silver component of the sub-interval. - Positive factor: high-grade sub-interval Evidence · text > including 5.8m at 12.4% Cu and 21.3g/t Ag from 11.1m #### 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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-003 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-8) Caribou Dome · copper #### Identity - Hole ID: CD26-003 - Project: Caribou Dome - Commodity: copper - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 3.5 - Grade Unit: % - Intercept: 3 m - From: 453.7 m - To: 456.7 m - Intercept Depth: 453.7 m #### Classification - Sample Type: drill - Group ID: CD26-003:453.7-456.7 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Demonstrates depth extension but is a narrow 3m intercept. - Positive factor: vertical extension of mineralisation - Negative factor: narrow intersection Evidence · text > CD26-003 returned: 3m at 3.5% Cu and 4g/t Ag from 453.7m #### 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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ### CD26-003 [Link to this fact](https://atlas-staging.minestarters.com/news/polarx-strikes-wider-richer-copper-at-caribou-dome--5d986db0-f6bb-4158-a565-8ce7c5424336#fact-drill-facts-9) Caribou Dome · silver #### Identity - Hole ID: CD26-003 - Project: Caribou Dome - Commodity: silver - Region: usa\_ak - Reported Region: usa\_ak - Ticker: PXX #### Geometry - Grade: 4 - Grade Unit: g/t - Intercept: 3 m - From: 453.7 m - To: 456.7 m - Intercept Depth: 453.7 m #### Classification - Sample Type: drill - Group ID: CD26-003:453.7-456.7 - Mining Method: underground #### Location - Loc. Confidence: medium #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Silver byproduct in a depth-extending intercept. - Positive factor: vertical extension of mineralisation Evidence · text > CD26-003 returned: 3m at 3.5% Cu and 4g/t Ag from 453.7m #### 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 **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: "Caribou Dome is in Alaska about 250km northeast of Anchorage, with the Denali Highway passing within around 20km of the " ## 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.