2023 Diamond Drill Results Iron Lake Magmatic Sulphide Project

Original announcement by tmx on

Company
Eastfield Resources Ltd.
Ticker
ETF
Exchange
TSX
Region
British Columbia
Primary commodity
Nickel
Secondary commodities
Copper, Gold, Platinum, Palladium, Cobalt
Document categories
Drill results
Extracted
2026-08-21 11:15:50 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Eastfield Resources reported 2023 diamond drill results from the Iron Lake Project, confirming that mineralization in the Discovery Zone extends to depth. Significant intercepts include 9.5m at 0.42% Cu and 341 ppm Ni in hole IL-23-24, while drilling in the Northwest Zone intersected magnetite-bearing pyroxenite.

Reasoning: Drilling confirmed the magmatic sulphide system at the Discovery Zone remains open to depth with significant Ni-Cu intercepts, though the Northwest Zone hole was less successful.

Positive factors

  • mineralization extends to depth
  • massive sulphide intersections confirmed
  • QA/QC disclosed

Negative factors

  • no massive sulphide in Northwest Zone hole

Facts used in scoring: 20

Atlas analysis — Eastfield Resources Ltd.: 2023 Diamond Drill Results Iron Lake Magmatic Sulphide Project. 341 ppm over 9.5 m; 0.1 % over 24.1 m; 0.1 % over 0.5 m

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 drill supervision, core logging, and QC/QA conducted by Archer, Cathro and Associates, with assays by ActLabs.

Evidence · text

“Drill supervision, core logging and QC/QA was conducted by Archer, Cathro and Associates”

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Drilling confirmed the magmatic sulphide system in the Discovery Zone remains open to depth.

Evidence · text

“confirming that the magmatic sulphide system in the Discovery Zone remains open to depth”

Extracted facts

Stored fact records: 20. Some facts used in scoring do not have a stored record.

Drill Results (20)

IL-23-24Iron Lake · copperGrade: 0.42Grade Unit: %Intercept: 9.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-24
Project
Iron Lake
Commodity
copper
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
0.42
Grade Unit
%
Intercept
9.5 m
From
569 m
To
578.5 m

Classification

Sample Type
drill
Group ID
IL-23-24:569.0-578.5
Mining Method
underground

QA/QC

Laboratory
ActLabs
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
2023-10-11T00:00:00.000Z

Reasoning: Significant copper intercept in a magmatic sulphide system.

Positive factors

  • confirmed continuity to depth

Evidence · table

“0.42”

Context: 9.5

IL-23-24Iron Lake · nickelGrade: 341Grade Unit: ppmIntercept: 9.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-24
Project
Iron Lake
Commodity
nickel
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
341
Grade Unit
ppm
Intercept
9.5 m
From
569 m
To
578.5 m

Classification

Sample Type
drill
Group ID
IL-23-24:569.0-578.5
Mining Method
underground

QA/QC

Laboratory
ActLabs
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
2023-10-11T00:00:00.000Z

Reasoning: Strong nickel grade accompanying copper in the Discovery Zone.

Positive factors

  • high grade nickel for magmatic sulphide

Evidence · text

“341 ppm nickel”
IL-23-24Iron Lake · copperGrade: 1.17Grade Unit: %Intercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-24
Project
Iron Lake
Commodity
copper
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
1.17
Grade Unit
%
Intercept
0.5 m
From
570.8 m
To
571.3 m

Classification

Sample Type
drill
Group ID
IL-23-24:570.8-571.3
Mining Method
underground

QA/QC

Laboratory
ActLabs
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
2023-10-11T00:00:00.000Z

Reasoning: High grade copper sub-interval within the main intercept.

Positive factors

  • high grade sub-interval

Evidence · table

“1.17”

Context: 0.5

IL-23-25Iron Lake · nickelGrade: 0.1Grade Unit: %Intercept: 24.1 mView all details
Link to this fact

Identity

Hole ID
IL-23-25
Project
Iron Lake
Commodity
nickel
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
0.1
Grade Unit
%
Intercept
24.1 m
From
318.2 m
To
342.3 m

Classification

Sample Type
drill
Group ID
IL-23-25:318.2-342.3
Mining Method
unknown

QA/QC

Laboratory
ActLabs
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
2023-10-11T00:00:00.000Z

Reasoning: Wide interval of elevated nickel in magnetite bearing pyroxenite, but lacks massive sulphide.

Positive factors

  • consistent nickel in pyroxenite

Negative factors

  • no massive sulphides encountered

Evidence · table

“0.10”

Context: 24.1

IL-23-26Iron Lake · copperGrade: 0.65Grade Unit: %Intercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-26
Project
Iron Lake
Commodity
copper
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
0.65
Grade Unit
%
Intercept
0.5 m
From
216 m
To
216.5 m

Classification

Sample Type
drill
Group ID
IL-23-26:216.0-216.5
Mining Method
underground

QA/QC

Laboratory
ActLabs
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
2023-10-11T00:00:00.000Z

Reasoning: Small massive sulphide intersection targeting up-dip projection.

Positive factors

  • massive sulphide intersection

Evidence · table

“0.65”

Context: 0.5

IL-23-26Iron Lake · nickelGrade: 0.1Grade Unit: %Intercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-26
Project
Iron Lake
Commodity
nickel
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
0.1
Grade Unit
%
Intercept
0.5 m
From
216 m
To
216.5 m

Classification

Sample Type
drill
Group ID
IL-23-26:216.0-216.5
Mining Method
underground

QA/QC

Laboratory
ActLabs
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
2023-10-11T00:00:00.000Z

Reasoning: Small massive sulphide intersection targeting up-dip projection.

Positive factors

  • massive sulphide intersection

Evidence · table

“0.10”

Context: 0.5

IL-23-24Iron Lake · goldGrade: 29Grade Unit: ppbIntercept: 9.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-24
Project
Iron Lake
Commodity
gold
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
29
Grade Unit
ppb
Intercept
9.5 m
From
569 m
To
578.5 m

Classification

Sample Type
drill
Group ID
IL-23-24:569-578.5
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 29 ppb gold, reported in a unit the rubric does not cover (g/t).

Negative factors

  • Grade unit ppb does not match the gold rubric unit g/t; not scored.

Evidence · table

“29”

Context: IL-23-24

IL-23-24Iron Lake · platinumGrade: 13Grade Unit: ppbIntercept: 9.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-24
Project
Iron Lake
Commodity
platinum
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
13
Grade Unit
ppb
Intercept
9.5 m
From
569 m
To
578.5 m

Classification

Sample Type
drill
Group ID
IL-23-24:569-578.5
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 13 ppb platinum. No grade band defined for this commodity, so the score is a placeholder.

Negative factors

  • No grade rubric for platinum; intercept not scored.

Evidence · table

“13”

Context: IL-23-24

IL-23-24Iron Lake · palladiumGrade: 31Grade Unit: ppbIntercept: 9.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-24
Project
Iron Lake
Commodity
palladium
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
31
Grade Unit
ppb
Intercept
9.5 m
From
569 m
To
578.5 m

Classification

Sample Type
drill
Group ID
IL-23-24:569-578.5
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 31 ppb palladium. No grade band defined for this commodity, so the score is a placeholder.

Negative factors

  • No grade rubric for palladium; intercept not scored.

Evidence · table

“31”

Context: IL-23-24

IncludingIron Lake · copperGrade: 1.17Grade Unit: %Intercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Iron Lake
Commodity
copper
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
1.17
Grade Unit
%
Intercept
0.5 m
From
570.8 m
To
571.3 m

Classification

Sample Type
drill
Group ID
Including:570.8-571.3
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table. 1.17 % copper is strong against the default band [2.5, 1, 0.5, 0.25] %. Grade×width 0.6 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 1.17 % copper is strong on the default band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.17”

Context: Including

IncludingIron Lake · nickelGrade: 0.06Grade Unit: %Intercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Iron Lake
Commodity
nickel
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
0.06
Grade Unit
%
Intercept
0.5 m
From
570.8 m
To
571.3 m

Classification

Sample Type
drill
Group ID
Including:570.8-571.3
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table. 0.06 % nickel is below against the default band [3, 1.5, 0.8, 0.3] %.

Negative factors

  • 0.06 % nickel is below the weak threshold (0.3 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.06”

Context: Including

IncludingIron Lake · goldGrade: 39Grade Unit: ppbIntercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Iron Lake
Commodity
gold
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
39
Grade Unit
ppb
Intercept
0.5 m
From
570.8 m
To
571.3 m

Classification

Sample Type
drill
Group ID
Including:570.8-571.3
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 39 ppb gold, reported in a unit the rubric does not cover (g/t).

Negative factors

  • Grade unit ppb does not match the gold rubric unit g/t; not scored.

Evidence · table

“39”

Context: Including

IncludingIron Lake · platinumGrade: 15Grade Unit: ppbIntercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Iron Lake
Commodity
platinum
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
15
Grade Unit
ppb
Intercept
0.5 m
From
570.8 m
To
571.3 m

Classification

Sample Type
drill
Group ID
Including:570.8-571.3
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 15 ppb platinum. No grade band defined for this commodity, so the score is a placeholder.

Negative factors

  • No grade rubric for platinum; intercept not scored.

Evidence · table

“15”

Context: Including

IncludingIron Lake · palladiumGrade: 16Grade Unit: ppbIntercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Iron Lake
Commodity
palladium
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
16
Grade Unit
ppb
Intercept
0.5 m
From
570.8 m
To
571.3 m

Classification

Sample Type
drill
Group ID
Including:570.8-571.3
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 16 ppb palladium. No grade band defined for this commodity, so the score is a placeholder.

Negative factors

  • No grade rubric for palladium; intercept not scored.

Evidence · table

“16”

Context: Including

IL-23-25Iron Lake · goldGrade: 7Grade Unit: ppbIntercept: 24.1 mView all details
Link to this fact

Identity

Hole ID
IL-23-25
Project
Iron Lake
Commodity
gold
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
7
Grade Unit
ppb
Intercept
24.1 m
From
318.2 m
To
342.3 m

Classification

Sample Type
drill
Group ID
IL-23-25:318.2-342.3
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 7 ppb gold, reported in a unit the rubric does not cover (g/t).

Negative factors

  • Grade unit ppb does not match the gold rubric unit g/t; not scored.

Evidence · table

“7”

Context: IL-23-25

IL-23-25Iron Lake · platinumGrade: 21Grade Unit: ppbIntercept: 24.1 mView all details
Link to this fact

Identity

Hole ID
IL-23-25
Project
Iron Lake
Commodity
platinum
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
21
Grade Unit
ppb
Intercept
24.1 m
From
318.2 m
To
342.3 m

Classification

Sample Type
drill
Group ID
IL-23-25:318.2-342.3
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 21 ppb platinum. No grade band defined for this commodity, so the score is a placeholder.

Negative factors

  • No grade rubric for platinum; intercept not scored.

Evidence · table

“21”

Context: IL-23-25

IL-23-25Iron Lake · palladiumGrade: 5Grade Unit: ppbIntercept: 24.1 mView all details
Link to this fact

Identity

Hole ID
IL-23-25
Project
Iron Lake
Commodity
palladium
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
5
Grade Unit
ppb
Intercept
24.1 m
From
318.2 m
To
342.3 m

Classification

Sample Type
drill
Group ID
IL-23-25:318.2-342.3
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 5 ppb palladium. No grade band defined for this commodity, so the score is a placeholder.

Negative factors

  • No grade rubric for palladium; intercept not scored.

Evidence · table

“<5”

Context: IL-23-25

IL-23-26Iron Lake · goldGrade: 40Grade Unit: ppbIntercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-26
Project
Iron Lake
Commodity
gold
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
40
Grade Unit
ppb
Intercept
0.5 m
From
216 m
To
216.5 m

Classification

Sample Type
drill
Group ID
IL-23-26:216-216.5
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 40 ppb gold, reported in a unit the rubric does not cover (g/t).

Negative factors

  • Grade unit ppb does not match the gold rubric unit g/t; not scored.

Evidence · table

“40”

Context: IL-23-26

IL-23-26Iron Lake · platinumGrade: 71Grade Unit: ppbIntercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-26
Project
Iron Lake
Commodity
platinum
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
71
Grade Unit
ppb
Intercept
0.5 m
From
216 m
To
216.5 m

Classification

Sample Type
drill
Group ID
IL-23-26:216-216.5
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 71 ppb platinum. No grade band defined for this commodity, so the score is a placeholder.

Negative factors

  • No grade rubric for platinum; intercept not scored.

Evidence · table

“71”

Context: IL-23-26

IL-23-26Iron Lake · palladiumGrade: 295Grade Unit: ppbIntercept: 0.5 mView all details
Link to this fact

Identity

Hole ID
IL-23-26
Project
Iron Lake
Commodity
palladium
Region
canada_bc
Reported Region
British Columbia
Ticker
ETF

Geometry

Grade
295
Grade Unit
ppb
Intercept
0.5 m
From
216 m
To
216.5 m

Classification

Sample Type
drill
Group ID
IL-23-26:216-216.5
Mining Method
underground

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2023-10-11T00:00:00.000Z

Reasoning: Expanded from assay table: 295 ppb palladium. No grade band defined for this commodity, so the score is a placeholder.

Negative factors

  • No grade rubric for palladium; intercept not scored.

Evidence · table

“295”

Context: IL-23-26

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.