# Marifil Mines Reports New Gold System Discovery at the San Roque Gold Project

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/marifil-mines-reports-new-gold-system-discovery-at-the-san-roque-gold-project--62d47e17-fdf6-41cf-91a7-cbddb5c826e6

Original source: https://money.tmx.com/en/quote/ICON/news/5426095366466711/marifil-mines-reports-new-gold-system-discovery-at-the-san-roque-gold-project

Publisher: tmx

Original announcement: 2018-11-05T18:55:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- 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

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas 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 factor: New gold system discovery \(NW Vein System\)

- Positive factor: High-grade channel samples \(9.06 g/t Au\)

- Positive factor: Epithermal quartz vein signatures

- Positive factor: QA/QC protocols disclosed

- Negative factor: Undrilled zone \(requires verification\)

- Negative factor: True width not stated for surface samples

Facts used in scoring: 6

## Classification and evidence

**Step-Out Extension**

Polarity: positive

Definition: 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 Disclosed**

Polarity: positive

Definition: 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 Intercept**

Polarity: positive

Definition: 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 Only**

Polarity: negative

Definition: 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-3

[Link to this fact](https://atlas-staging.minestarters.com/news/marifil-mines-reports-new-gold-system-discovery-at-the-san-roque-gold-project--62d47e17-fdf6-41cf-91a7-cbddb5c826e6#fact-drill-facts-0)

San Roque · gold

#### 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 factor: Bonanza Intercept

Evidence · text

> 1.7 meters of 9.06 g/t Au with 82 g/t Ag

### T-3

[Link to this fact](https://atlas-staging.minestarters.com/news/marifil-mines-reports-new-gold-system-discovery-at-the-san-roque-gold-project--62d47e17-fdf6-41cf-91a7-cbddb5c826e6#fact-drill-facts-1)

San Roque · silver

#### 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-8

[Link to this fact](https://atlas-staging.minestarters.com/news/marifil-mines-reports-new-gold-system-discovery-at-the-san-roque-gold-project--62d47e17-fdf6-41cf-91a7-cbddb5c826e6#fact-drill-facts-2)

San Roque · gold

#### 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-9

[Link to this fact](https://atlas-staging.minestarters.com/news/marifil-mines-reports-new-gold-system-discovery-at-the-san-roque-gold-project--62d47e17-fdf6-41cf-91a7-cbddb5c826e6#fact-drill-facts-3)

San Roque · gold

#### 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 factor: Bonanza Intercept

- Negative factor: Apparent Width Only

Evidence · text

> 0.2 meter channel sample in Trench 9 of 24.66 g/t Au

### T-9

[Link to this fact](https://atlas-staging.minestarters.com/news/marifil-mines-reports-new-gold-system-discovery-at-the-san-roque-gold-project--62d47e17-fdf6-41cf-91a7-cbddb5c826e6#fact-drill-facts-4)

San Roque · silver

#### 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 11

[Link to this fact](https://atlas-staging.minestarters.com/news/marifil-mines-reports-new-gold-system-discovery-at-the-san-roque-gold-project--62d47e17-fdf6-41cf-91a7-cbddb5c826e6#fact-drill-facts-5)

San Roque · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: 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.