Marifil Mines Reports New Gold System Discovery at the San Roque Gold Project
Original announcement by tmx on
- Company
- Marifil Mines Ltd.
- Ticker
- MFM
- Exchange
- TSX
- Region
- Rio Negro, Argentina
- Primary commodity
- Gold
- Secondary commodities
- Silver
- Document categories
- Drill results, Other
- Extracted
- 2026-08-21 12:59:58 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Marifil Mines has announced the discovery of the NW Vein System, a new gold-bearing epithermal quartz vein system at the San Roque project in Argentina. Surface trenching revealed high-grade gold and silver intercepts, including 9.06 g/t Au over 1.7m, providing a new target for upcoming drilling.
Reasoning: The announcement reports a significant new discovery of an epithermal vein system with high-grade surface showings (up to 24.66 g/t Au) in an area previously undrilled.
Positive factors
- New gold system discovery (NW Vein System)
- High-grade channel samples (9.06 g/t Au)
- Epithermal quartz vein signatures
- QA/QC protocols disclosed
Negative factors
- Undrilled zone (requires verification)
- True width not stated for surface samples
Facts used in scoring: 6
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Discovery of the NW Vein System in an undrilled area of the property.
Evidence · text
“a new system of gold-bearing epithermal quartz veins (the " NW Vein System ") has been discovered at the San Roque property in a zone that has yet to be drill tested.”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Detailed QA/QC protocols, including use of blanks, standards, and duplicates, and mention of ASI laboratory certification are provided.
Evidence · text
“The Company carried out a very careful and systematic Quality Assurance/Quality Control program”
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 9.06 g/t Au over 1.7m is exceptionally high grade for an epithermal system.
Evidence · text
“1.7 meters of 9.06 g/t Au”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: Channel samples and historical drill results are reported without true width or orientation.
Evidence · text
“true width unknown”
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Drill Results (6)
T-3San Roque · goldGrade: 9.06Grade Unit: g/tIntercept: 1.7 mView all detailsHide details
Identity
- Hole ID
- T-3
- Project
- San Roque
- Commodity
- gold
- Region
- argentina
- Reported Region
- Rio Negro, Argentina
- Ticker
- MFM
Geometry
- Grade
- 9.06
- Grade Unit
- g/t
- Intercept
- 1.7 m
Classification
- Sample Type
- channel
- Group ID
- T-3:0-1.7
- Mining Method
- unknown
QA/QC
- Laboratory
- Alex Stewart (International) Argentina S.A. (ASI)
- 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
- 2018-11-05T00:00:00.000Z
Reasoning: 9.06 g/t Au over 1.7m is a strong high-grade intercept for an epithermal system.
Positive factors
- Bonanza Intercept
Evidence · text
“1.7 meters of 9.06 g/t Au with 82 g/t Ag”
T-3San Roque · silverGrade: 82Grade Unit: g/tIntercept: 1.7 mView all detailsHide details
Identity
- Hole ID
- T-3
- Project
- San Roque
- Commodity
- silver
- Region
- argentina
- Reported Region
- Rio Negro, Argentina
- Ticker
- MFM
Geometry
- Grade
- 82
- Grade Unit
- g/t
- Intercept
- 1.7 m
Classification
- Sample Type
- channel
- Group ID
- T-3:0-1.7
- Mining Method
- unknown
QA/QC
- Laboratory
- Alex Stewart (International) Argentina S.A. (ASI)
- 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
- 2018-11-05T00:00:00.000Z
Reasoning: Significant silver credit accompanying high-grade gold.
Evidence · text
“9.06 g/t Au with 82 g/t Ag”
T-8San Roque · goldGrade: 2.18Grade Unit: g/tIntercept: 3 mView all detailsHide details
Identity
- Hole ID
- T-8
- Project
- San Roque
- Commodity
- gold
- Region
- argentina
- Reported Region
- Rio Negro, Argentina
- Ticker
- MFM
Geometry
- Grade
- 2.18
- Grade Unit
- g/t
- Intercept
- 3 m
Classification
- Sample Type
- channel
- Group ID
- T-8:0-3.0
- Mining Method
- unknown
QA/QC
- Laboratory
- Alex Stewart (International) Argentina S.A. (ASI)
- 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
- 2018-11-05T00:00:00.000Z
Reasoning: Moderate grade intercept in an open-ended trench.
Evidence · text
“3 meters at 2.18 g/t Au”
T-9San Roque · goldGrade: 24.66Grade Unit: g/tIntercept: 0.2 mView all detailsHide details
Identity
- Hole ID
- T-9
- Project
- San Roque
- Commodity
- gold
- Region
- argentina
- Reported Region
- Rio Negro, Argentina
- Ticker
- MFM
Geometry
- Grade
- 24.66
- Grade Unit
- g/t
- Intercept
- 0.2 m
Classification
- Sample Type
- channel
- Group ID
- T-9:0-0.2
- Mining Method
- unknown
QA/QC
- Laboratory
- Alex Stewart (International) Argentina S.A. (ASI)
- 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
- 2018-11-05T00:00:00.000Z
Reasoning: Very high grade (24.66 g/t) but extremely narrow (0.2m) channel sample.
Positive factors
- Bonanza Intercept
Negative factors
- Apparent Width Only
Evidence · text
“0.2 meter channel sample in Trench 9 of 24.66 g/t Au”
T-9San Roque · silverGrade: 77.7Grade Unit: g/tIntercept: 0.2 mView all detailsHide details
Identity
- Hole ID
- T-9
- Project
- San Roque
- Commodity
- silver
- Region
- argentina
- Reported Region
- Rio Negro, Argentina
- Ticker
- MFM
Geometry
- Grade
- 77.7
- Grade Unit
- g/t
- Intercept
- 0.2 m
Classification
- Sample Type
- channel
- Group ID
- T-9:0-0.2
- Mining Method
- unknown
QA/QC
- Laboratory
- Alex Stewart (International) Argentina S.A. (ASI)
- 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
- 2018-11-05T00:00:00.000Z
Reasoning: Significant silver grade in high-grade gold interval.
Evidence · text
“24.66 g/t Au with 78 g/t Ag”
MIM RC 11San Roque · goldGrade: 4.26Grade Unit: g/tIntercept: 2 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- MIM RC 11
- Project
- San Roque
- Commodity
- gold
- Region
- argentina
- Reported Region
- Rio Negro, Argentina
- Ticker
- MFM
Geometry
- Grade
- 4.26
- Grade Unit
- g/t
- Intercept
- 2 m
Classification
- Sample Type
- drill
- Mining Method
- unknown
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2000-01-01T00:00:00.000Z
Dates
- Event date
- 2018-11-05T00:00:00.000Z
Reasoning: Historical drill result from 2000; true width unknown.
Negative factors
- Apparent Width Only
Evidence · text
“2 meters of quartz veining carrying 4.26 g/t Au (true width unknown)”
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.