Sendero Resources Reports Drilling Results at Peñas Negras Project; Confirms Geological Model and Identifies Geochemical Vectors in Vicuña Belt, Argentina
Original announcement by thenewswire on
- Company
- Sendero Resources Corp.
- Ticker
- SEND
- Exchange
- Unavailable
- Region
- La Rioja, Argentina
- Primary commodity
- Gold
- Secondary commodities
- Silver, Copper, Molybdenum, Antimony, Arsenic, Lead, Zinc
- Document categories
- Drill results, Other
- Extracted
- 2026-08-24 04:14:52 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Sendero Resources has confirmed its porphyry-epithermal geological model at the Peñas Negras Project through reconnaissance drilling and rock sampling. The program identified near-surface gold and silver mineralization, along with geochemical vectors like antimony, supporting the potential for a larger hydrothermal system.
Reasoning: The drilling confirms the porphyry-epithermal model with gold and silver intercepts and identifies key pathfinder elements, though it is early-stage reconnaissance.
Positive factors
- Confirmation of geological model
- Presence of geochemical vectors
- Near-surface mineralization in all holes
- Strong rock sampling results
Negative factors
- True widths unknown
- Reconnaissance stage
Facts used in scoring: 5
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: Release mentions SGS lab, ISO/IEC 17025 accreditation, and use of standards, blanks, and duplicates.
Evidence · text
“Certified reference materials (standards), blank samples, and field duplicates (quarter core samples) were inserted into sampling stream at a rate of approximately 8%.”
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 document explicitly states that true widths are unknown at this stage.
Evidence · text
“True widths are unknown at this stage.”
Extracted facts
Stored fact records: 5. Some facts used in scoring do not have a stored record.
Drill Results (5)
PNDH-201Peñas Negras Project · goldGrade: 1.04Grade Unit: g/tIntercept: 1.5 mView all detailsHide details
Identity
- Hole ID
- PNDH-201
- Project
- Peñas Negras Project
- Commodity
- gold
- Region
- argentina
- Reported Region
- La Rioja, Argentina
- Ticker
- SEND
Geometry
- Grade
- 1.04
- Grade Unit
- g/t
- Intercept
- 1.5 m
- From
- 14 m
- To
- 15.5 m
Classification
- Sample Type
- drill
- Group ID
- PNDH-201:14.0-15.5
- Mining Method
- unknown
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- SGS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-18T00:00:00.000Z
Reasoning: 1.04 g/t Au over 1.5m is a solid reconnaissance intercept for an epithermal target.
Positive factors
- Gold intercept in reconnaissance hole
Negative factors
- Narrow interval
Evidence · text
“PNDH-201 returning 1.04 g/t Au over 1.5 m from 14.0 m”
PNDH-201Peñas Negras Project · silverGrade: 48Grade Unit: g/tIntercept: 1.5 mView all detailsHide details
Identity
- Hole ID
- PNDH-201
- Project
- Peñas Negras Project
- Commodity
- silver
- Region
- argentina
- Reported Region
- La Rioja, Argentina
- Ticker
- SEND
Geometry
- Grade
- 48
- Grade Unit
- g/t
- Intercept
- 1.5 m
- From
- 14 m
- To
- 15.5 m
Classification
- Sample Type
- drill
- Group ID
- PNDH-201:14.0-15.5
- Mining Method
- unknown
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- SGS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-18T00:00:00.000Z
Reasoning: 48 g/t Ag over 1.5m is a strong silver intercept accompanying the gold.
Positive factors
- Strong silver anomaly
Evidence · text
“48 g/t Ag over 1.5 m from 14.0 m”
PNDH-201Peñas Negras Project · silverGrade: 28.2Grade Unit: g/tIntercept: 1 mView all detailsHide details
Identity
- Hole ID
- PNDH-201
- Project
- Peñas Negras Project
- Commodity
- silver
- Region
- argentina
- Reported Region
- La Rioja, Argentina
- Ticker
- SEND
Geometry
- Grade
- 28.2
- Grade Unit
- g/t
- Intercept
- 1 m
- From
- 57 m
- To
- 58 m
Classification
- Sample Type
- drill
- Group ID
- PNDH-201:57.0-58.0
- Mining Method
- unknown
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- SGS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-18T00:00:00.000Z
Reasoning: 28.2 g/t Ag over 1.0m is a secondary silver anomaly.
Positive factors
- Silver anomaly
Evidence · text
“28.2 g/t Ag over 1.0 m from 57.0 m in PNDH-201”
PNDH-201Peñas Negras Project · goldGrade: 0.11Grade Unit: ppmIntercept: 32 mView all detailsHide details
Identity
- Hole ID
- PNDH-201
- Project
- Peñas Negras Project
- Commodity
- gold
- Region
- argentina
- Reported Region
- La Rioja, Argentina
- Ticker
- SEND
Geometry
- Grade
- 0.11
- Grade Unit
- ppm
- Intercept
- 32 m
- From
- 0 m
- To
- 46 m
Classification
- Sample Type
- drill
- Group ID
- PNDH-201:0.0-46.0
- Mining Method
- unknown
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- SGS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-18T00:00:00.000Z
Reasoning: A broad halo of 0.11 ppm Au over 46m provides geological context.
Positive factors
- Broad halo of gold
Evidence · text
“weighted average of 0.11 ppm Au for this interval”
PNDH-203Peñas Negras Project · antimonyView all detailsHide details
Identity
- Hole ID
- PNDH-203
- Project
- Peñas Negras Project
- Commodity
- antimony
- Region
- argentina
- Reported Region
- La Rioja, Argentina
- Ticker
- SEND
Classification
- Sample Type
- drill
- Mining Method
- unknown
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- SGS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-18T00:00:00.000Z
Reasoning: Anomalous antimony in PNDH-203 acts as a geochemical vector.
Positive factors
- Antimony anomaly supports epithermal model
Evidence · text
“The hole also returned anomalous antimony values”
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.