# Altamira Gold detects new mineralized porphyry at Maria Bonita West, Cajueiro Gold District, Brazil Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979 Original source: https://resourceworld.com/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gold-district-brazil/ Publisher: resourceworld Original announcement: 2026-08-25T11:59:49.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Altamira Gold Corp. - Ticker: ALTA - Exchange: Unavailable - Region: Brazil - Primary commodity: Gold - Secondary commodities: None reported - Document categories: Drill results, Resource update - Extracted: 2026-08-25 16:18:15 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Altamira Gold has confirmed a new mineralized porphyry body at the Maria Bonita West project in Brazil through four additional drill holes. The results, particularly from holes MBA-042 and MBA-043, show wide, continuous gold mineralization that remains open to the west and at depth. Reasoning: The drilling confirmed a new mineralized porphyry body with significant width and continuity, extending the known system. - Positive factor: discovery of new mineralized porphyry body - Positive factor: wide coherent mineralized intersections - Positive factor: mineralization remains open to the west and at depth - Positive factor: consistent gold grades - Negative factor: low grades relative to underground thresholds Facts used in scoring: 10 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Drilling confirmed a new mineralized porphyry body to the west of the existing system. Evidence · text > confirming the presence of a new mineralized early porphyry body ## Extracted facts Stored fact records: 10. Some facts used in scoring do not have a stored record. ## Drill Results (10) ### MBA-042 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-0) Maria Bonita West · gold #### Identity - Hole ID: MBA-042 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.4 - Grade Unit: g/t - Intercept: 36.2 m - From: 0 m - To: 36.2 m #### Classification - Sample Type: drill - Group ID: MBA-042:0-36.2 - Mining Method: open\_pit #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Wide intercept from surface in a new porphyry body. - Positive factor: intercepts from surface Evidence · text > 36.2 metres at 0.4 g/t gold from surface ### MBA-042 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-1) Maria Bonita West · gold #### Identity - Hole ID: MBA-042 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 45.4 m - From: 61.9 m - To: 107.3 m #### Classification - Sample Type: drill - Group ID: MBA-042:61.9-107.3 - Mining Method: open\_pit #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Continuous mineralization in the new porphyry body. Evidence · text > 45.4 metred at 0.3 g/t gold from 61.9 metres depth ### MBA-042 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-2) Maria Bonita West · gold #### Identity - Hole ID: MBA-042 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 200.4 m - From: 113.2 m - To: 313.6 m #### Classification - Sample Type: drill - Group ID: MBA-042:113.2-313.6 - Mining Method: open\_pit #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Extremely wide continuous intersection confirming the porphyry scale. - Positive factor: very wide intercept Evidence · text > 200.4 metres at 0.3 g/t gold from 113.2 metres depth ### MBA-043 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-3) Maria Bonita West · gold #### Identity - Hole ID: MBA-043 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.4 - Grade Unit: g/t - Intercept: 231.5 m - From: 93 m - To: 324.5 m #### Classification - Sample Type: drill - Group ID: MBA-043:93-324.5 - Mining Method: open\_pit #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Significant width confirming the extent of the new porphyry body. - Positive factor: very wide intercept Evidence · text > MBA-043 intersected 231.5 metres at 0.4 g/t gold from 93 metres depth ### MBA-036 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-4) Maria Bonita West · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: MBA-036 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.5 - Grade Unit: g/t - Intercept: 70.6 m #### Classification - Sample Type: drill - Mining Method: open\_pit #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Historical reference to previous discovery in the same system. Evidence · text > previously detected in hole MBA-036 \(70.6m at 0.5g/t gold\) ### MBA-037 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-5) Maria Bonita West · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: MBA-037 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.5 - Grade Unit: g/t - Intercept: 122 m #### Classification - Sample Type: drill - Mining Method: open\_pit #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Historical reference to previous discovery. Evidence · text > intersected in MBA-037 \(122m at 0.5 g/t gold\) ### MBA-038 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-6) Maria Bonita West · gold Needs review: ungrounded #### Identity - Hole ID: MBA-038 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 74 m #### Classification - Sample Type: drill - Mining Method: open\_pit #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Wide but low grade intercept. Evidence · text > MBA038 returned 74.0 metres at 0.3 g/t gold ### MBA-039 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-7) Maria Bonita West · gold Needs review: ungrounded #### Identity - Hole ID: MBA-039 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.4 - Grade Unit: g/t - Intercept: 117 m #### Classification - Sample Type: drill - Mining Method: open\_pit #### Review - Needs Review: Yes - Review Reason: ungrounded - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Wide intercept in the porphyry system. Evidence · text > MBA039 returned 117.0 metres at 0.4 g/t gold ### MBA-040 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-8) Maria Bonita West · gold #### Identity - Hole ID: MBA-040 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.1 - Grade Unit: g/t - Intercept: 40 m #### Classification - Sample Type: drill - Mining Method: open\_pit #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Weakly mineralized intercept in tuff wall rock. - Negative factor: low grade Evidence · text > MBA040 returned 40.0 metres at 0.1 g.t gold ### MBA-041 [Link to this fact](https://atlas-staging.minestarters.com/news/altamira-gold-detects-new-mineralized-porphyry-at-maria-bonita-west-cajueiro-gol--bf85be3b-539d-4ed8-9c7c-625912426979#fact-drill-facts-9) Maria Bonita West · gold #### Identity - Hole ID: MBA-041 - Project: Maria Bonita West - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Geometry - Grade: 0.2 - Grade Unit: g/t - Intercept: 10.6 m #### Classification - Sample Type: drill - Mining Method: open\_pit #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Weakly mineralized intercept in tuff wall rock. - Negative factor: narrow and low grade Evidence · text > MBA041 returned 10.6 metres at 0.2 g/t gold ## 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.