Edge Copper Initial Drilling Confirms Broad Oxide Copper Mineralization and Expansion Potential at 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
- 2026-08-24 05:26:38 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Edge Copper has reported initial assay results from its Zonia Copper Project in Arizona, confirming broad, near-surface oxide copper mineralization. The drilling program, which includes both infill and step-out holes, aims to increase confidence in the existing resource model and evaluate potential for significant resource growth. The company also announced an ongoing metallurgical drilling program and plans for a resource update in Q4 2026.
Reasoning: Edge Copper's initial drill results confirm broad, near-surface oxide copper mineralization at Zonia, with several intercepts showing significant widths, including a 189.28m interval. While individual grades are generally weak to moderate for a porphyry system, the extensive widths and the program's focus on resource expansion and conversion are positive. The company also disclosed a metallurgical program and plans for a resource update, indicating active project development.
Positive factors
- Broad widths of mineralization
- Confirmation of oxide copper mineralization
- Expansion potential identified
- High QA/QC standards
- QP sign-off
- Clear cut-off grade disclosure
- Program includes step-out drilling for growth
- Metallurgical program underway
Negative factors
- Grades are generally weak to moderate for porphyry copper
- Grade-thickness products are mostly below weak thresholds
Facts used in scoring: 16
Classification and evidence
True Width Disclosedpositive
Actual thickness perpendicular to structure is stated, not just downhole length.
Why it applies: The company states that 'intervals reported in this news release are interpreted to represent approximate true thicknesses.'
Evidence · text
“intervals reported in this news release are interpreted to represent approximate true thicknesses.”
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, and duplicates, and mentions an accredited laboratory and a Qualified Person sign-off.
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. Samples are from HQ-diameter core. Core is scanned and logged by the Company's geology team before being cut. Half-core HQ samples are prepared for assay and the remaining material is retained at site for future reference. The Company's QA/QC program includes the insertion of certified reference materials, blanks and duplicate samples at regular intervals within the sample stream. The Company also conducts ongoing review of laboratory QA/QC performance to ensure analytical reliability and accuracy. Assay samples were picked up directly from site by Skyline Assayers and Laboratories ("Skyline") and transported to Skyline's laboratory facility in Tucson, Arizona for preparation and analysis. Skyline is accredited and independent of the Company. Sample preparation included drying, crushing, splitting and pulverizing prior to analysis. Copper assays were determined using Skyline's single-element assay method, consisting of three-acid digestion followed by atomic absorption spectroscopy (AAS) determination for total copper. Significant intervals reported in this news release were calculated using a 0.10% CuT cut-off. All drill core is oriented where possible. Drill holes in the current program were drilled at inclinations of approximately -45 to -52 degrees and generally oriented towards the southeast, broadly orthogonal to the interpreted strike and dip of the mineralized system, associated foliation and the major bounding fault structures. Based on the current geological interpretation and drill geometry, intervals reported in this news release are interpreted to represent approximate true thicknesses. Qualified Person 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. Dr. Redmond has verified the technical data supporting this news release by reviewing assay data, QA/QC results, drill logs, sampling records and drill hole collar/survey information.”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The release explicitly states that 'Significant intervals reported in this news release were calculated using a 0.10% CuT cut-off.'
Evidence · text
“Significant intervals reported in this news release were calculated using a 0.10% CuT cut-off.”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The drill program includes 'step-out drilling designed to test for mineralization along strike to the northeast and southwest, and lateral extensions'.
Evidence · text
“step-out drilling is designed to test for mineralization along strike to the northeast and southwest, and lateral extensions toward interpreted bounding structures.”
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: The program includes 'Infill drilling is designed to increase confidence in the existing resource model and support conversion of Inferred Mineral Resources to the Indicated category'.
Evidence · text
“Infill drilling is designed to increase confidence in the existing resource model and support conversion of Inferred Mineral Resources to the Indicated category”
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: The company expects to 'update the Zonia mineral resource in Q4 2026' based on the results of this drill program.
Evidence · text
“Based on the results of this drill program, the Company expects to update the Zonia mineral resource in Q4 2026.”
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: The current drilling is referenced against the 'current pit shell used for the Company's preliminary economic assessment (the "Pit Shell")'.
Evidence · text
“current pit shell used for the Company's preliminary economic assessment (the "Pit Shell")”
Extracted facts
Stored fact records: 16. Some facts used in scoring do not have a stored record.
Drill Results (16)
ZND0001Zonia Copper Project · copperGrade: 0.21Grade Unit: %Intercept: 37.18 mView all detailsHide details
Identity
- Hole ID
- ZND0001
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.21
- Grade Unit
- %
- Intercept
- 37.18 m
- From
- 82.3 m
- To
- 119.48 m
- Hole Depth
- 187.76 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0001:82.3-119.48
- Mining Method
- open_pit
Location
- Easting
- 480942
- Northing
- 1198441
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1428.24 m
- Azimuth
- 125 °
- Dip
- -50 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Weak copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Strong interval width
Negative factors
- Weak copper grade for porphyry deposit
- Grade-thickness product below weak threshold
Evidence · table
“0.21”
Context: 122
ZND0002Zonia Copper Project · copperGrade: 0.25Grade Unit: %Intercept: 93.27 mView all detailsHide details
Identity
- Hole ID
- ZND0002
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.25
- Grade Unit
- %
- Intercept
- 93.27 m
- From
- 7.32 m
- To
- 100.58 m
- Hole Depth
- 256.64 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0002:7.32-100.58
- Mining Method
- open_pit
Location
- Easting
- 482421
- Northing
- 1200686
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1312.47 m
- Azimuth
- 138 °
- Dip
- -48 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Moderate copper grade over a continuous width, resulting in a weak grade-thickness product for porphyry copper.
Positive factors
- Moderate copper grade
- Continuous interval width
Negative factors
- Grade-thickness product is weak for porphyry copper
Evidence · table
“0.25”
Context: 306
ZND0002Zonia Copper Project · copperGrade: 0.38Grade Unit: %Intercept: 23.77 mView all detailsHide details
Identity
- Hole ID
- ZND0002
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.38
- Grade Unit
- %
- Intercept
- 23.77 m
- From
- 17.98 m
- To
- 41.76 m
- Hole Depth
- 256.64 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0002:17.98-41.76
- Mining Method
- open_pit
Location
- Easting
- 482421
- Northing
- 1200686
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1312.47 m
- Azimuth
- 138 °
- Dip
- -48 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Higher-grade sub-interval with moderate copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Moderate copper grade
- Strong interval width
Negative factors
- Grade-thickness product below weak threshold
Evidence · table
“0.38”
Context: 78
ZND0003Zonia Copper Project · copperGrade: 0.36Grade Unit: %Intercept: 75.29 mView all detailsHide details
Identity
- Hole ID
- ZND0003
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.36
- Grade Unit
- %
- Intercept
- 75.29 m
- From
- 51.82 m
- To
- 127.1 m
- Hole Depth
- 139.29 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0003:51.82-127.1
- Mining Method
- open_pit
Location
- Easting
- 481650
- Northing
- 1198890
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1423.98 m
- Azimuth
- 130 °
- Dip
- -45 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Moderate copper grade over a continuous width, resulting in a weak grade-thickness product for porphyry copper. This intercept extends mineralization below the modelled base of oxide.
Positive factors
- Moderate copper grade
- Continuous interval width
- Extends mineralization below modelled base of oxide
Negative factors
- Grade-thickness product is weak for porphyry copper
Evidence · table
“0.36”
Context: 247
ZND0006Zonia Copper Project · copperGrade: 0.21Grade Unit: %Intercept: 108.51 mNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- ZND0006
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.21
- Grade Unit
- %
- Intercept
- 108.51 m
- From
- 24.08 m
- To
- 132.59 m
- Hole Depth
- 260.6 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0006:24.08-132.59
- Mining Method
- open_pit
Location
- Easting
- 484973
- Northing
- 1204046
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1318.56 m
- Azimuth
- 136 °
- Dip
- -48 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Weak copper grade over a continuous width, resulting in a weak grade-thickness product for porphyry copper.
Positive factors
- Continuous interval width
Negative factors
- Weak copper grade for porphyry deposit
- Grade-thickness product is weak for porphyry copper
Evidence · table
“0.21”
Context: 356
ZND0006Zonia Copper Project · copperGrade: 0.31Grade Unit: %Intercept: 27.43 mView all detailsHide details
Identity
- Hole ID
- ZND0006
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.31
- Grade Unit
- %
- Intercept
- 27.43 m
- From
- 40.23 m
- To
- 67.67 m
- Hole Depth
- 260.6 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0006:40.23-67.67
- Mining Method
- open_pit
Location
- Easting
- 484973
- Northing
- 1204046
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1318.56 m
- Azimuth
- 136 °
- Dip
- -48 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Higher-grade sub-interval with moderate copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Moderate copper grade
- Strong interval width
Negative factors
- Grade-thickness product below weak threshold
Evidence · table
“0.31”
Context: 90
ZND0007Zonia Copper Project · copperGrade: 0.19Grade Unit: %Intercept: 22.25 mView all detailsHide details
Identity
- Hole ID
- ZND0007
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.19
- Grade Unit
- %
- Intercept
- 22.25 m
- From
- 6.1 m
- To
- 28.35 m
- Hole Depth
- 212.45 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0007:6.1-28.35
- Mining Method
- open_pit
Location
- Easting
- 486010
- Northing
- 1204190
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1379.27 m
- Azimuth
- 128 °
- Dip
- -45 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Weak copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Strong interval width
Negative factors
- Weak copper grade for porphyry deposit
- Grade-thickness product below weak threshold
Evidence · table
“0.19”
Context: 73
ZND0009Zonia Copper Project · copperGrade: 0.29Grade Unit: %Intercept: 71.93 mView all detailsHide details
Identity
- Hole ID
- ZND0009
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.29
- Grade Unit
- %
- Intercept
- 71.93 m
- From
- 153.62 m
- To
- 225.55 m
- Hole Depth
- 269.44 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0009:153.62-225.55
- Mining Method
- open_pit
Location
- Easting
- 482329
- Northing
- 1199185
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1397.22 m
- Azimuth
- 130 °
- Dip
- -48 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Moderate copper grade over a continuous width, resulting in a weak grade-thickness product for porphyry copper.
Positive factors
- Moderate copper grade
- Continuous interval width
Negative factors
- Grade-thickness product is weak for porphyry copper
Evidence · table
“0.29”
Context: 236
ZND0009Zonia Copper Project · copperGrade: 0.43Grade Unit: %Intercept: 27.43 mView all detailsHide details
Identity
- Hole ID
- ZND0009
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.43
- Grade Unit
- %
- Intercept
- 27.43 m
- From
- 176.78 m
- To
- 204.22 m
- Hole Depth
- 269.44 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0009:176.78-204.22
- Mining Method
- open_pit
Location
- Easting
- 482329
- Northing
- 1199185
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1397.22 m
- Azimuth
- 130 °
- Dip
- -48 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Strong copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Strong copper grade
- Strong interval width
Negative factors
- Grade-thickness product below weak threshold
Evidence · table
“0.43”
Context: 90
ZND0013Zonia Copper Project · copperGrade: 0.22Grade Unit: %Intercept: 36.58 mView all detailsHide details
Identity
- Hole ID
- ZND0013
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.22
- Grade Unit
- %
- Intercept
- 36.58 m
- From
- 42.67 m
- To
- 79.25 m
- Hole Depth
- 242.62 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0013:42.67-79.25
- Mining Method
- open_pit
Location
- Easting
- 486574
- Northing
- 1204775
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1435.63 m
- Azimuth
- 128 °
- Dip
- -45 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Weak copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Strong interval width
Negative factors
- Weak copper grade for porphyry deposit
- Grade-thickness product below weak threshold
Evidence · table
“0.22”
Context: 120
ZND0014Zonia Copper Project · copperGrade: 0.23Grade Unit: %Intercept: 189.28 mNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- ZND0014
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.23
- Grade Unit
- %
- Intercept
- 189.28 m
- From
- 24.08 m
- To
- 213.36 m
- Hole Depth
- 258.78 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0014:24.08-213.36
- Mining Method
- open_pit
Location
- Easting
- 485801
- Northing
- 1203889
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1329.23 m
- Azimuth
- 115 °
- Dip
- -52 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Weak copper grade over an exceptionally broad continuous width, resulting in a weak grade-thickness product for porphyry copper. This intercept suggests potential for pit-shell expansion.
Positive factors
- Exceptionally broad continuous interval width
- Suggests potential for pit-shell expansion
Negative factors
- Weak copper grade for porphyry deposit
- Grade-thickness product is weak for porphyry copper
Evidence · table
“0.23”
Context: 621
ZND0014Zonia Copper Project · copperGrade: 0.34Grade Unit: %Intercept: 23.47 mView all detailsHide details
Identity
- Hole ID
- ZND0014
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.34
- Grade Unit
- %
- Intercept
- 23.47 m
- From
- 31.09 m
- To
- 54.56 m
- Hole Depth
- 258.78 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0014:31.09-54.56
- Mining Method
- open_pit
Location
- Easting
- 485801
- Northing
- 1203889
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1329.23 m
- Azimuth
- 115 °
- Dip
- -52 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Higher-grade sub-interval with moderate copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Moderate copper grade
- Strong interval width
Negative factors
- Grade-thickness product below weak threshold
Evidence · table
“0.34”
Context: 77
ZND0014Zonia Copper Project · copperGrade: 0.36Grade Unit: %Intercept: 53.04 mView all detailsHide details
Identity
- Hole ID
- ZND0014
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.36
- Grade Unit
- %
- Intercept
- 53.04 m
- From
- 129.54 m
- To
- 182.58 m
- Hole Depth
- 258.78 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0014:129.54-182.58
- Mining Method
- open_pit
Location
- Easting
- 485801
- Northing
- 1203889
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1329.23 m
- Azimuth
- 115 °
- Dip
- -52 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Higher-grade sub-interval with moderate copper grade over a continuous width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Moderate copper grade
- Continuous interval width
Negative factors
- Grade-thickness product below weak threshold
Evidence · table
“0.36”
Context: 174
ZND0015Zonia Copper Project · copperGrade: 0.14Grade Unit: %Intercept: 11.28 mView all detailsHide details
Identity
- Hole ID
- ZND0015
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.14
- Grade Unit
- %
- Intercept
- 11.28 m
- From
- 24.69 m
- To
- 35.97 m
- Hole Depth
- 321.87 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0015:24.69-35.97
- Mining Method
- open_pit
Location
- Easting
- 481595
- Northing
- 1200270
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1441.12 m
- Azimuth
- 135 °
- Dip
- -45 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Low copper grade over a moderate width, with a grade-thickness product well below the weak threshold for porphyry copper.
Negative factors
- Low copper grade for porphyry deposit
- Grade-thickness product well below weak threshold
Evidence · table
“0.14”
Context: 37
ZND0019Zonia Copper Project · copperGrade: 0.22Grade Unit: %Intercept: 80.47 mView all detailsHide details
Identity
- Hole ID
- ZND0019
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.22
- Grade Unit
- %
- Intercept
- 80.47 m
- From
- 81.08 m
- To
- 161.54 m
- Hole Depth
- 396.85 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0019:81.08-161.54
- Mining Method
- open_pit
Location
- Easting
- 483989
- Northing
- 1203183
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1408.43 m
- Azimuth
- 130 °
- Dip
- -49 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Weak copper grade over a continuous width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Continuous interval width
Negative factors
- Weak copper grade for porphyry deposit
- Grade-thickness product below weak threshold
Evidence · table
“0.22”
Context: 264
ZND0019Zonia Copper Project · copperGrade: 0.45Grade Unit: %Intercept: 20.42 mView all detailsHide details
Identity
- Hole ID
- ZND0019
- Project
- Zonia Copper Project
- Commodity
- copper
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- EDCU
Geometry
- Grade
- 0.45
- Grade Unit
- %
- Intercept
- 20.42 m
- From
- 113.7 m
- To
- 134.11 m
- Hole Depth
- 396.85 m
Classification
- Deposit Type
- porphyry
- Program
- mixed
- Sample Type
- drill
- Group ID
- ZND0019:113.7-134.11
- Mining Method
- open_pit
Location
- Easting
- 483989
- Northing
- 1203183
- CRS
- Arizona State Plane
- EPSG
- 2223
- Elevation
- 1408.43 m
- Azimuth
- 130 °
- Dip
- -49 °
- Loc. Confidence
- high
QA/QC
- Laboratory
- Skyline Assayers and Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-19T00:00:00.000Z
Reasoning: Strong copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.
Positive factors
- Strong copper grade
- Strong interval width
Negative factors
- Grade-thickness product below weak threshold
Evidence · table
“0.45”
Context: 67
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.