Pampa Medina Sulphide Drilling Intersects 16m of 5.70% Cu and 62.6 g/t Ag including 4m of 11.32% Cu and 144.0 g/t Ag in Significant Extension of UHG Bornite Zone

Original announcement by yahoo_press on

Company
Marimaca Copper Corp.
Ticker
MARI
Exchange
TSX
Region
Unavailable
Primary commodity
Copper
Secondary commodities
Silver
Document categories
Drill results
Extracted
2026-08-20 22:02:29 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Marimaca Copper Corp. reported high-grade drill results at the Pampa Medina deposit, featuring a 16m intercept of 5.70% Cu and 62.6 g/t Ag. This result includes a high-grade sub-interval of 4m at 11.32% Cu and 144.0 g/t Ag, extending the known UHG Bornite Zone.

Reasoning: The intercept of 5.70% Cu is exceptional for a copper project and represents a significant extension of the UHG Bornite Zone.

Positive factors

  • high grade copper intercept
  • significant silver credits
  • extension of known high grade zone

Facts used in scoring: 4

Atlas analysis — Marimaca Copper Corp.: Pampa Medina Sulphide Drilling Intersects 16m of 5.70% Cu and 62.6 g/t Ag including 4m of 11.32% Cu and 144.0 g/t Ag in Significant Extension of UHG Bornite Zone. 5.7 % over 16 m; 11.32 % over 4 m

Classification and evidence

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: The results represent a significant extension of the UHG Bornite Zone.

Evidence · text

“Significant Extension of UHG Bornite Zone”

Extracted facts

Stored fact records: 4. Some facts used in scoring do not have a stored record.

Drill Results (4)

Fact 1Pampa Medina · copperGrade: 5.7Grade Unit: %Intercept: 16 mNeeds review: ungroundedView all details
Link to this fact

Identity

Project
Pampa Medina
Commodity
copper
Ticker
MARI

Geometry

Grade
5.7
Grade Unit
%
Intercept
16 m

Classification

Sample Type
drill

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-08T00:00:00.000Z

Reasoning: 5.70% Cu is an exceptional grade for a copper deposit.

Positive factors

  • exceptional copper grade

Evidence · text

“16m of 5.70% Cu”
Fact 2Pampa Medina · silverGrade: 62.6Grade Unit: g/tIntercept: 16 mNeeds review: ungroundedView all details
Link to this fact

Identity

Project
Pampa Medina
Commodity
silver
Ticker
MARI

Geometry

Grade
62.6
Grade Unit
g/t
Intercept
16 m

Classification

Sample Type
drill

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-08T00:00:00.000Z

Reasoning: 62.6 g/t Ag provides significant byproduct value.

Positive factors

  • strong silver credits

Evidence · text

“62.6 g/t Ag”
Fact 3Pampa Medina · copperGrade: 11.32Grade Unit: %Intercept: 4 mNeeds review: ungroundedView all details
Link to this fact

Identity

Project
Pampa Medina
Commodity
copper
Ticker
MARI

Geometry

Grade
11.32
Grade Unit
%
Intercept
4 m

Classification

Sample Type
drill

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-08T00:00:00.000Z

Reasoning: 11.32% Cu is an exceptional high-grade intercept.

Positive factors

  • extremely high grade sub-interval

Evidence · text

“4m of 11.32% Cu”
Fact 4Pampa Medina · silverGrade: 144Grade Unit: g/tIntercept: 4 mNeeds review: ungroundedView all details
Link to this fact

Identity

Project
Pampa Medina
Commodity
silver
Ticker
MARI

Geometry

Grade
144
Grade Unit
g/t
Intercept
4 m

Classification

Sample Type
drill

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
No

Dates

Event date
2026-06-08T00:00:00.000Z

Reasoning: 144.0 g/t Ag is a strong silver grade within the high-grade copper interval.

Positive factors

  • high grade silver sub-interval

Evidence · text

“144.0 g/t Ag”

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.