Algo Grande Copper Core Testing Shows Mineralized Skarn is Denser and More Chargeable Than Host Rocks; Ground Gravity Survey to Begin at Adelita
Original announcement by accesswire on
- Company
- Algo Grande Copper Corp.
- Ticker
- ALGR
- Exchange
- Unavailable
- Region
- Sonora, Mexico
- Primary commodity
- Copper
- Secondary commodities
- Silver, Gold
- Document categories
- Other, Drill results
- Extracted
- 2026-10-07 21:48:40 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Algo Grande Copper Corp. reported petrophysical testing results showing that mineralized skarn at the Adelita Project is significantly denser and more chargeable than host rocks. The company also announced a planned ground gravity survey to begin October 22, 2026, to test structural targets along a 7-kilometre corridor, following the visual identification of copper sulfides in hole AG-CG-PH2-003.
Reasoning: The release provides significant geophysical validation (density and chargeability) to support upcoming exploration, alongside a new visual copper intersection, though actual assay results are pending.
Positive factors
- Petrophysical testing confirms skarn is denser and more chargeable than host rocks, providing a geophysical vector
- Visual identification of copper sulfides in new hole AG-CG-PH2-003
- Planned ground gravity survey to de-risk structural targets along a 7km corridor
Negative factors
- Assays for the new skarn intersection in AG-CG-PH2-003 are still pending
- Petrophysical results are based on a small, selected set of samples and may not be representative
Facts used in scoring: 2
Classification and evidence
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release names a Qualified Person (João Rocha) and a specific laboratory (Zonge International) used for testing.
Evidence · text
“The scientific and technical information disclosed in this news release has been reviewed and approved by João Rocha, EurGeol... a Qualified Person”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The release explicitly states that intervals for AG-CG-PH2-003 are downhole lengths and true widths are not yet known.
Evidence · text
“Intervals are downhole lengths; true widths are not yet known.”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Drill Results (2)
AG-CG-PH2-003Adelita · copperIntercept: 9.05 mView all detailsHide details
Identity
- Hole ID
- AG-CG-PH2-003
- Project
- Adelita
- Commodity
- copper
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ALGR
Geometry
- Intercept
- 9.05 m
- From
- 624.45 m
- To
- 634.5 m
- Intercept Depth
- 624.45 m
Classification
- Sample Type
- drill
- Group ID
- AG-CG-PH2-003:624.45-634.5
Location
- CRS
- WGS84 / UTM Zone 12N
QA/QC
- QP Signed
- Yes
- QA/QC Methods
- standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-07T00:00:00.000Z
Reasoning: Visual identification of multiple copper sulfides in a new target, though grades are not yet confirmed by assays.
Positive factors
- Visible copper sulfides (chalcopyrite, covellite, bornite) logged
Negative factors
- Assays are pending
- Visual observations are preliminary and not a substitute for laboratory assays
Evidence · text
“intersected fault-hosted skarn at a target separate from Cerro Grande, with visible copper sulfides logged from 624.45 to 634.50 m; assays pending.”
Tags used in scoring
No QA/QC Disclosurenegative
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
AG-CG-PH2-003Adelita · copperIntercept: 29.65 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- AG-CG-PH2-003
- Project
- Adelita
- Commodity
- copper
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ALGR
Geometry
- Intercept
- 29.65 m
- From
- 602 m
- To
- 654.1 m
- Intercept Depth
- 602 m
Classification
- Sample Type
- drill
- Group ID
- AG-CG-PH2-003:602-654.1
Location
- CRS
- WGS84 / UTM Zone 12N
QA/QC
- QP Signed
- Yes
- QA/QC Methods
- standards
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-09-11T00:00:00.000Z
Dates
- Event date
- 2026-10-07T00:00:00.000Z
Reasoning: The hole intersected a skarn interval, but no grades are reported.
Positive factors
- Intersected fault-hosted skarn
Negative factors
- Assays are pending
Evidence · text
“The hole intersected fault-hosted skarn from 602.0 to 654.1 m downhole”
Tags used in scoring
No QA/QC Disclosurenegative
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 Undisclosednegative
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.