Edge Copper Intersects 290 ft at 0.40% CuT in Hole ZND0028 Beyond the PEA Design Pit at the Northwestern End of Zonia
Original announcement by tmx on
- Company
- Edge Copper Corporation
- Ticker
- EDCU
- Exchange
- TSX
- Region
- Arizona
- Primary commodity
- Copper
- Secondary commodities
- None reported
- Document categories
- Drill results, Resource update, Metallurgy
- Extracted
- 2026-09-19 18:33:38 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Edge Copper reports significant assay results from its Zonia Copper Project in Arizona, highlighted by hole ZND0028, which intersected 290 ft at 0.40% CuT, including 50 ft at 1.69% CuT, extending mineralization beyond the current PEA pit design and below the modeled oxide base. The drilling program, which includes both infill and perimeter holes, continues to confirm the continuity and grade of the oxide system, supporting resource expansion and potential conversion of Inferred to Indicated resources. The company plans further drilling, metallurgical test work, and an updated Mineral Resource estimate in Q4 2026.
Reasoning: Edge Copper's latest drill results from the Zonia Copper Project are highly positive, particularly hole ZND0028, which significantly extends high-grade oxide mineralization beyond the current PEA design pit and below the modeled oxide base, suggesting substantial resource expansion potential. The program also reinforces continuity within the existing resource. The company provides robust QA/QC disclosure and states that intervals represent approximate true thicknesses. While further work is needed for full interpretation, these results are a strong de-risking signal for the project.
Positive factors
- High-grade intercept in ZND0028 extends mineralization beyond current PEA pit and below modeled oxide base, indicating resource expansion potential.
- Drilling confirms continuity and grade of the oxide system, supporting resource confidence and potential conversion of Inferred to Indicated resources.
- Comprehensive QA/QC procedures are disclosed, including certified lab, QP sign-off, and methods like blanks, standards, and duplicates.
- True thickness is interpreted to be approximated by reported intervals, providing better geological understanding.
Negative factors
- Final interpretation and modeling are still pending, requiring follow-up drilling and sequential copper analyses.
- The PEA referenced includes Inferred Mineral Resources considered speculative, and there is no certainty it will be realized.
Facts used in scoring: 16
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: Hole ZND0028 returned 50 ft grading 1.69% CuT, which is an exceptionally high grade for a porphyry copper deposit, well above the strong threshold of 1% Cu.
Evidence · text
“ZND0028 includes 50 ft at 1.69% CuT”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Hole ZND0028 extended oxide mineralization beyond the current PEA Design Pit and below the modeled base of oxide, indicating a significant step-out.
Evidence · text
“ZND0028 ... extending oxide mineralization beyond the current PEA Design Pit at the northwestern end of the deposit and intersecting mineralization well below the modelled base of oxide.”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release details industry-standard QA/QC procedures, including certified reference materials, blanks, duplicates, and a certified independent laboratory (Skyline Assayers and Laboratories).
Evidence · text
“All drill samples were collected under the supervision of the Company's geological staff in accordance with industry-standard quality assurance and quality control ("QA/QC") procedures. ... The Company's QA/QC program includes the insertion of certified reference materials, blanks and duplicate samples at regular intervals within the sample stream. ... Skyline is accredited and independent of the Company.”
True Width Disclosedpositive
Actual thickness perpendicular to structure is stated, not just downhole length.
Why it applies: The document states that reported intervals are interpreted to represent approximate true thicknesses based on geological interpretation and drill geometry.
Evidence · text
“Based on the current geological interpretation and drill geometry, intervals reported in this news release are interpreted to represent approximate true thicknesses.”
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: Several holes were drilled primarily as infill to reinforce continuity within the current mineral resource area and increase confidence.
Evidence · text
“The other holes reported today were drilled primarily as infill and returned broad intervals of oxide mineralization that reinforce continuity within the current mineral resource area.”
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: The current drilling program is intended to support future resource evaluation and potential conversion of Inferred Mineral Resources to Indicated, which would feed into future economic studies.
Evidence · text
“The results support increasing confidence in the current resource, potential future conversion of Inferred Mineral Resources to the Indicated category, and evaluation of expansion potential beyond the current PEA Design Pit.”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The scientific and technical information has been approved by a Qualified Person as defined by National Instrument 43-101.
Evidence · text
“The scientific and technical information contained in this news release has been approved by Patrick B. Redmond, Ph.D., P.Geo., a consultant to the Company, who is a Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects.”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The PEA referenced includes Inferred Mineral Resources that are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as Mineral Reserves.
Evidence · text
“The results of the Company's preliminary economic assessment ("PEA") are preliminary in nature and include Inferred Mineral Resources that are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as Mineral Reserves.”
Heap Leach Routeneutral
Processing via heap leach — lower CAPEX and OPEX, lower recovery expected.
Why it applies: the document describes a heap_leach route ("heap leach")
Extracted facts
Stored fact records: 16. Some facts used in scoring do not have a stored record.
Drill Results (16)
ZND0008Zonia · copperGrade: 0.14Grade Unit: %Intercept: 97.23 mView all detailsHide details
Identity
- Hole ID
- ZND0008
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.14
- Grade Unit
- %
- Intercept
- 97.23 m
- From
- 5.79 m
- To
- 103.02 m
- Hole Depth
- 229.21 m
- Intercept Depth
- 5.79 m
Classification
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0008:5.79-103.02
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 485454
- Northing
- 1204493
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1323.44 m
- Azimuth
- 137 °
- Dip
- -48 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This intercept confirms mineralization within the resource area, contributing to overall confidence, though the grade is moderate for porphyry copper.
Evidence · table
“0.14”
Context: 319
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
ZND0008Zonia · copperGrade: 0.18Grade Unit: %Intercept: 60.35 mView all detailsHide details
Identity
- Hole ID
- ZND0008
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.18
- Grade Unit
- %
- Intercept
- 60.35 m
- From
- 162.76 m
- To
- 223.11 m
- Hole Depth
- 229.21 m
- Intercept Depth
- 162.76 m
Classification
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0008:162.76-223.11
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 485454
- Northing
- 1204493
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1323.44 m
- Azimuth
- 137 °
- Dip
- -48 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This intercept confirms mineralization within the resource area, contributing to overall confidence, though the grade is moderate for porphyry copper.
Evidence · table
“0.18”
Context: 198
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
ZND0008Zonia · copperGrade: 0.37Grade Unit: %Intercept: 14.33 mView all detailsHide details
Identity
- Hole ID
- ZND0008
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.37
- Grade Unit
- %
- Intercept
- 14.33 m
- From
- 208.79 m
- To
- 223.11 m
- Hole Depth
- 229.21 m
- Intercept Depth
- 208.79 m
Classification
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0008:208.79-223.11
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 485454
- Northing
- 1204493
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1323.44 m
- Azimuth
- 137 °
- Dip
- -48 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This sub-interval shows a higher-grade zone within the broader intercept, contributing positively to the overall grade profile.
Evidence · table
“0.37”
Context: 47
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
ZND0011Zonia · copperGrade: 0.31Grade Unit: %Intercept: 106.68 mView all detailsHide details
Identity
- Hole ID
- ZND0011
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.31
- Grade Unit
- %
- Intercept
- 106.68 m
- From
- 24.38 m
- To
- 131.06 m
- Hole Depth
- 264.26 m
- Intercept Depth
- 24.38 m
Classification
- Program
- resource
- Sample Type
- drill
- Group ID
- ZND0011:24.38-131.06
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 482443
- Northing
- 1201262
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1430.12 m
- Azimuth
- 140 °
- Dip
- -45 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This strong infill result confirms historical data and contributes to increasing confidence within the known resource area.
Positive factors
- Strong infill result confirming historical data.
Evidence · table
“0.31”
Context: 350
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
ZND0011Zonia · copperGrade: 0.37Grade Unit: %Intercept: 67.06 mView all detailsHide details
Identity
- Hole ID
- ZND0011
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.37
- Grade Unit
- %
- Intercept
- 67.06 m
- From
- 54.86 m
- To
- 121.92 m
- Hole Depth
- 264.26 m
- Intercept Depth
- 54.86 m
Classification
- Program
- resource
- Sample Type
- drill
- Group ID
- ZND0011:54.86-121.92
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 482443
- Northing
- 1201262
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1430.12 m
- Azimuth
- 140 °
- Dip
- -45 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This sub-interval shows a higher-grade zone within the broader intercept, further reinforcing continuity and grade in the resource area.
Positive factors
- Strong infill result confirming historical data.
Evidence · table
“0.37”
Context: 220
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
ZND0020Zonia · copperGrade: 0.22Grade Unit: %Intercept: 143.87 mView all detailsHide details
Identity
- Hole ID
- ZND0020
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.22
- Grade Unit
- %
- Intercept
- 143.87 m
- From
- 13.72 m
- To
- 157.58 m
- Hole Depth
- 201.47 m
- Intercept Depth
- 13.72 m
Classification
- Program
- resource
- Sample Type
- drill
- Group ID
- ZND0020:13.72-157.58
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 486157
- Northing
- 1204981
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1334.11 m
- Azimuth
- 138 °
- Dip
- -48 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This broad intercept adds data to the geological and resource models, supporting confidence in the current resource.
Evidence · table
“0.22”
Context: 472
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
ZND0020Zonia · copperGrade: 0.34Grade Unit: %Intercept: 13.11 mView all detailsHide details
Identity
- Hole ID
- ZND0020
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.34
- Grade Unit
- %
- Intercept
- 13.11 m
- From
- 14.63 m
- To
- 27.74 m
- Hole Depth
- 201.47 m
- Intercept Depth
- 14.63 m
Classification
- Program
- resource
- Sample Type
- drill
- Group ID
- ZND0020:14.63-27.74
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 486157
- Northing
- 1204981
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1334.11 m
- Azimuth
- 138 °
- Dip
- -48 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This sub-interval shows a higher-grade zone within the broader intercept, contributing positively to the overall grade profile.
Evidence · table
“0.34”
Context: 43
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
ZND0020Zonia · copperGrade: 0.35Grade Unit: %Intercept: 24.38 mView all detailsHide details
Identity
- Hole ID
- ZND0020
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.35
- Grade Unit
- %
- Intercept
- 24.38 m
- From
- 97.84 m
- To
- 122.22 m
- Hole Depth
- 201.47 m
- Intercept Depth
- 97.84 m
Classification
- Program
- resource
- Sample Type
- drill
- Group ID
- ZND0020:97.84-122.22
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 486157
- Northing
- 1204981
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1334.11 m
- Azimuth
- 138 °
- Dip
- -48 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This sub-interval shows a higher-grade zone within the broader intercept, contributing positively to the overall grade profile.
Evidence · table
“0.35”
Context: 80
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
ZND0022Zonia · copperGrade: 0.16Grade Unit: %Intercept: 163.68 mView all detailsHide details
Identity
- Hole ID
- ZND0022
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.16
- Grade Unit
- %
- Intercept
- 163.68 m
- From
- 3.96 m
- To
- 167.64 m
- Hole Depth
- 173.13 m
- Intercept Depth
- 3.96 m
Classification
- Program
- resource
- Sample Type
- drill
- Group ID
- ZND0022:3.96-167.64
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 486322
- Northing
- 1205189
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1328.93 m
- Azimuth
- 144 °
- Dip
- -47 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This broad intercept adds data to the geological and resource models, supporting confidence in the current resource.
Evidence · table
“0.16”
Context: 537
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
ZND0028Zonia · copperGrade: 0.14Grade Unit: %Intercept: 43.59 mView all detailsHide details
Identity
- Hole ID
- ZND0028
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.14
- Grade Unit
- %
- Intercept
- 43.59 m
- From
- 29.57 m
- To
- 73.15 m
- Hole Depth
- 262.13 m
- Intercept Depth
- 29.57 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZND0028:29.57-73.15
- Mining Method
- open_pit
Location
- Location
- northwestern end of Zonia
- Easting
- 486694
- Northing
- 1205760
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1359.43 m
- Azimuth
- 138 °
- Dip
- -46 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This intercept, while moderate grade, is significant due to its location beyond the current PEA pit design and below the modeled oxide base, indicating potential resource expansion.
Positive factors
- Extends mineralization beyond current PEA pit and below modeled oxide base.
Evidence · table
“0.14”
Context: 143
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
ZND0028Zonia · copperGrade: 0.45Grade Unit: %Intercept: 13.72 mView all detailsHide details
Identity
- Hole ID
- ZND0028
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.45
- Grade Unit
- %
- Intercept
- 13.72 m
- From
- 101.19 m
- To
- 114.91 m
- Hole Depth
- 262.13 m
- Intercept Depth
- 101.19 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZND0028:101.19-114.91
- Mining Method
- open_pit
Location
- Location
- northwestern end of Zonia
- Easting
- 486694
- Northing
- 1205760
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1359.43 m
- Azimuth
- 138 °
- Dip
- -46 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This higher-grade intercept in ZND0028 further supports the potential for resource expansion beyond the current PEA pit design.
Positive factors
- Extends mineralization beyond current PEA pit and below modeled oxide base.
Evidence · table
“0.45”
Context: 45
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
ZND0028Zonia · copperGrade: 0.4Grade Unit: %Intercept: 88.39 mView all detailsHide details
Identity
- Hole ID
- ZND0028
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.4
- Grade Unit
- %
- Intercept
- 88.39 m
- From
- 134.42 m
- To
- 222.81 m
- Hole Depth
- 262.13 m
- Intercept Depth
- 134.42 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZND0028:134.42-222.81
- Mining Method
- open_pit
Location
- Location
- northwestern end of Zonia
- Easting
- 486694
- Northing
- 1205760
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1359.43 m
- Azimuth
- 138 °
- Dip
- -46 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This is the principal result, extending high-grade oxide mineralization significantly beyond the current PEA pit and below the modeled oxide base, indicating substantial resource expansion potential.
Positive factors
- Extends mineralization beyond current PEA pit and below modeled oxide base.
- High grade-width product for porphyry copper.
Evidence · table
“0.40”
Context: 290
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
ZND0028Zonia · copperGrade: 1.69Grade Unit: %Intercept: 15.24 mView all detailsHide details
Identity
- Hole ID
- ZND0028
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 1.69
- Grade Unit
- %
- Intercept
- 15.24 m
- From
- 146.3 m
- To
- 161.54 m
- Hole Depth
- 262.13 m
- Intercept Depth
- 146.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZND0028:146.3-161.54
- Mining Method
- open_pit
Location
- Location
- northwestern end of Zonia
- Easting
- 486694
- Northing
- 1205760
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1359.43 m
- Azimuth
- 138 °
- Dip
- -46 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This bonanza-grade sub-interval within ZND0028 is highly material, significantly enhancing the prospectivity of the extended mineralization and indicating a very high-grade zone.
Positive factors
- Exceptional high-grade intercept for porphyry copper.
- Extends mineralization beyond current PEA pit and below modeled oxide base.
Evidence · table
“1.69”
Context: 50
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
ZND0037Zonia · copperGrade: 0.26Grade Unit: %Intercept: 175.26 mView all detailsHide details
Identity
- Hole ID
- ZND0037
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.26
- Grade Unit
- %
- Intercept
- 175.26 m
- From
- 3.05 m
- To
- 178 m
- Hole Depth
- 206.04 m
- Intercept Depth
- 3.05 m
Classification
- Program
- resource
- Sample Type
- drill
- Group ID
- ZND0037:3.05-178
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 485975
- Northing
- 1204319
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1360.63 m
- Azimuth
- 110 °
- Dip
- -45 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This broad intercept adds data to the geological and resource models, supporting confidence in the current resource.
Evidence · table
“0.26”
Context: 575
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
ZND0037Zonia · copperGrade: 0.35Grade Unit: %Intercept: 59.44 mView all detailsHide details
Identity
- Hole ID
- ZND0037
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.35
- Grade Unit
- %
- Intercept
- 59.44 m
- From
- 28.96 m
- To
- 88.39 m
- Hole Depth
- 206.04 m
- Intercept Depth
- 28.96 m
Classification
- Program
- resource
- Sample Type
- drill
- Group ID
- ZND0037:28.96-88.39
- Mining Method
- open_pit
Location
- Location
- Zonia
- Easting
- 485975
- Northing
- 1204319
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1360.63 m
- Azimuth
- 110 °
- Dip
- -45 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This sub-interval shows a higher-grade zone within the broader intercept, contributing positively to the overall grade profile.
Evidence · table
“0.35”
Context: 195
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
ZND0048Zonia · copperGrade: 0.18Grade Unit: %Intercept: 39.62 mView all detailsHide details
Identity
- Hole ID
- ZND0048
- Project
- Zonia
- Commodity
- copper
- Region
- usa_az
- Reported Region
- usa_az
- Ticker
- EDCU
Geometry
- Grade
- 0.18
- Grade Unit
- %
- Intercept
- 39.62 m
- From
- 213.36 m
- To
- 253 m
- Hole Depth
- 257.86 m
- Intercept Depth
- 213.36 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZND0048:213.36-253
- Mining Method
- open_pit
Location
- Location
- northern end of the deposit
- Easting
- 486650
- Northing
- 1206016
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1360.93 m
- Azimuth
- 135 °
- Dip
- -45 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % CuT
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-07-29T00:00:00.000Z
Reasoning: This intercept adds to the understanding of mineralization at the northern end of the deposit, contributing to overall resource knowledge.
Positive factors
- Adds another mineralized intersection at the northern end of the deposit.
Evidence · table
“0.18”
Context: 130
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
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.