Zacatecas Silver Reports High-Grade Gold and Silver Surface Sampling Over 2 km Strike Length at Oso Negro, Sonora
Original announcement by tmx on
- Company
- Zacatecas Silver Corp.
- Ticker
- ZAC
- Exchange
- TSX
- Region
- Sonora, Mexico
- Primary commodity
- Gold
- Secondary commodities
- Silver, Lead, Zinc
- Document categories
- Drill results
- Extracted
- 2026-09-17 06:37:45 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Zacatecas Silver reported high-grade gold and silver surface rock-chip sampling at the Oso Negro project in Sonora, Mexico. Results include up to 14.8 g/t Au and 2,340 g/t Ag across a 2 km strike length, with geological indicators suggesting higher grades may exist at depth below the boiling zone.
Reasoning: Strong high-grade surface results across a significant strike length in a prospective epithermal system, with geological indicators suggesting significant upside at depth.
Positive factors
- High-grade surface sampling (14.8 g/t Au, 2,340 g/t Ag)
- Significant strike length (2 km)
- Geological context suggests higher grades at depth (above boiling zone)
- QA/QC protocols disclosed (ALS, CRMs, blanks, duplicates)
Facts used in scoring: 2
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 14.8 g/t Au and 2,340 g/t Ag are exceptionally high for an epithermal system.
Evidence · text
“Up to 14.8 g/t Au and 2,340 g/t Ag returned from surface rock-chip sampling”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release mentions ALS laboratory, CRMs, blanks, and field duplicates.
Evidence · text
“The Company inserted certified reference materials, blanks and field duplicates into the sample stream”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Results demonstrate system-scale continuity over a 2 km strike length.
Evidence · text
“High-grade results confirmed across a minimum 2 km combined strike length”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Drill Results (2)
Fact 1Oso Negro · goldGrade: 14.8Grade Unit: g/tView all detailsHide details
Identity
- Project
- Oso Negro
- Commodity
- gold
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ZAC
Geometry
- Grade
- 14.8
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Location
- Location
- Oso Negro
- Loc. Source
- document
QA/QC
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-09T00:00:00.000Z
Reasoning: Exceptional gold grade from surface sampling.
Positive factors
- High grade intercept
Evidence · text
“Up to 14.8 g/t Au”
Tags used in scoring
QA/QC Disclosedpositive
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Fact 2Oso Negro · silverGrade: 2340Grade Unit: g/tView all detailsHide details
Identity
- Project
- Oso Negro
- Commodity
- silver
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ZAC
Geometry
- Grade
- 2340
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Location
- Location
- Oso Negro
- Loc. Source
- document
QA/QC
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-09T00:00:00.000Z
Reasoning: Exceptional silver grade from surface sampling.
Positive factors
- High grade intercept
Evidence · text
“2,340 g/t Ag”
Tags used in scoring
QA/QC Disclosedpositive
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 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.