North Shore Intersects Significant Uranium Mineralization in All Phase 1 Drill Holes at Rio Puerco
Original announcement by accesswire on
- Company
- North Shore Uranium Ltd.
- Ticker
- NSU
- Exchange
- Unavailable
- Region
- New Mexico
- Primary commodity
- Uranium
- Secondary commodities
- None reported
- Document categories
- Drill results, Resource update
- Extracted
- 2026-09-03 11:19:32 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
North Shore Uranium Ltd. announced positive Phase 1 drill results from its Rio Puerco uranium project in New Mexico, intersecting significant uranium mineralization in all 13 holes. The program confirmed historical data with strong grades, including 12.5 ft at 0.331% eU3O8, and identified characteristics favorable for in-situ-recovery (ISR) mining. The company plans a Phase 2 drill program in Q4 2026 to advance towards a new NI 43-101 compliant resource estimate.
Reasoning: North Shore Uranium reported positive Phase 1 drill results from its Rio Puerco project, confirming significant uranium mineralization in all holes and validating historical data. The results, including strong grades and widths, are favorable for ISR mining and support the company's path towards a NI 43-101 compliant resource. While the grades are eU3O8, the detailed QA/QC and QP sign-off provide high confidence.
Positive factors
- Significant uranium mineralization intersected in all 13 Phase 1 drill holes.
- Grades up to 0.331% eU3O8 are strong for uranium deposits.
- All intercepts are below the water table, favorable for In-Situ Recovery (ISR) mining.
- Drilling confirmed mineralization in three separate sandstone units, validating historical data.
- Company plans Phase 2 drilling to advance towards a NI 43-101 compliant resource.
Negative factors
- Grades are equivalent uranium (eU3O8) from gamma logging, not chemical assays.
- Historical resource is not NI 43-101 compliant and not verified by a Qualified Person.
Facts used in scoring: 22
Classification and evidence
True Width Disclosedpositive
Actual thickness perpendicular to structure is stated, not just downhole length.
Why it applies: The document explicitly states: 'All intersections are assumed to be true widths given the vertical holes and the interpreted horizontal sandstone layers hosting the mineralization.'
Evidence · text
“All intersections are assumed to be true widths given the vertical holes and the interpreted horizontal sandstone layers hosting the mineralization.”
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 the use of a calibrated multi-parameter logging tool by Century Geophysical Corporation, including specific correction factors (dead-time, K-factor, borehole diameter, fluid corrections) and QP sign-off.
Evidence · text
“Upon completion of each drill hole, a downhole geophysical survey was completed by Century Geophysical Corporation (" Century ") using a calibrated multi-parameter logging tool. Natural gamma ray, resistivity and spontaneous potential measurements were taken at 0.1 foot intervals over the entire length of the drill hole. Downhole deviation measurements were also taken at 20 foot intervals. The natural gamma ray data was used for eU 3 O 8 estimation and resistivity provides information for geologic interpretation and correlation of the different sedimentary layers. Logging speeds were optimized to collect high-quality natural gamma data. eU 3 O 8 values are equivalent uranium grades derived from calibrated downhole gamma logging and the results presented in this news release have not been verified by chemical assays. Actual uranium grades may vary from the eU 3 O 8 grade estimation. The geophysical logging tool used by Century was calibrated at a calibration facility in Casper, Wyoming immediately prior to commencement of the drilling program. The eU 3 O 8 was estimated from the natural gamma ray data through application of standard correction and calibration factors, including dead-time correction, K-factor, borehole diameter and borehole fluid corrections.”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The document clearly states the cut-off grade used for reporting intercepts: 'cutoff of 0.02% eU3O8 and a minimum grade x thickness of 0.30'.
Evidence · text
“Significant uranium mineralization was intersected in all 13 drill holes using a cutoff of 0.02% eU 3 0 8 and a minimum grade x thickness of 0.30”
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: The drill program is described as 'twin' drilling to validate and further evaluate historical exploration data from Kerr-McGee, which is characteristic of infill or confirmation drilling.
Evidence · text
“Each of the sites selected for drilling in 2026 is a "twin" of a mud rotary hole drilled by Kerr-McGee where uranium mineralization was identified using natural gamma ray logging.”
Historical Estimate Onlynegative
Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.
Why it applies: The document explicitly refers to a 'Historical Resource' from 2009 that 'has not been verified and should not be relied upon' and 'does not comply with Canadian National Instrument 43-101 guidelines'.
Evidence · text
“A historical resource estimate of 6.0 million tonnes at an average grade of 0.09% eU 3 O 8 for 11.4 million pounds of U 3 O 8 was reported for Rio Puerco in 2009 by Monaro Mining NL (the " Historical Resource ").”
No QP/CP Disclosurenegative
No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience.
Why it applies: The document states that 'A Qualified Person has not verified the Historical Resource estimate on behalf of the Company.'
Evidence · text
“A Qualified Person has not verified the Historical Resource estimate on behalf of the Company.”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The historical resource estimate is reported as an 'inferred resource' under JORC Code (2004).
Evidence · text
“Monaro reported a JORC Code (2004)-compliant inferred resource of 6.0 million tonnes at an average grade of 0.09% eU 3 O 8 using a cutoff grade of 0.03% eU 3 O 8 for 11.4 million pounds of contained U 3 O 8 which is classified by the Company as a Historical Resource.”
Extracted facts
Stored fact records: 22. Some facts used in scoring do not have a stored record.
Drill Results (22)
RP-26-18-25Rio Puerco · uraniumGrade: 0.132Grade Unit: % U3O8Intercept: 3.9624 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-25
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.132
- Grade Unit
- % U3O8
- Intercept
- 3.9624 m
- True Width
- 3.9624 m
- From
- 178.308 m
- To
- 182.2704 m
- Hole Depth
- 215.9508 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows moderate uranium mineralization, contributing positively to the overall program success and validation of historical data, with good confidence in the reported width.
Positive factors
- Moderate grade (0.132% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.132”
Context: 13.0
RP-26-18-25Rio Puerco · uraniumGrade: 0.091Grade Unit: % U3O8Intercept: 2.286 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-25
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.091
- Grade Unit
- % U3O8
- Intercept
- 2.286 m
- True Width
- 2.286 m
- From
- 183.7944 m
- To
- 186.0288 m
- Hole Depth
- 215.9508 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak to moderate uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak to moderate grade (0.091% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.091”
Context: 7.5
RP-26-18-32Rio Puerco · uraniumGrade: 0.06Grade Unit: % U3O8Intercept: 3.5052 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-32
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.06
- Grade Unit
- % U3O8
- Intercept
- 3.5052 m
- True Width
- 3.5052 m
- From
- 168.25 m
- To
- 171.7548 m
- Hole Depth
- 209.94984 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.060% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.060”
Context: 11.5
RP-26-18-32Rio Puerco · uraniumGrade: 0.053Grade Unit: % U3O8Intercept: 3.2004 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-32
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.053
- Grade Unit
- % U3O8
- Intercept
- 3.2004 m
- True Width
- 3.2004 m
- From
- 175.5648 m
- To
- 178.7976 m
- Hole Depth
- 209.94984 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.053% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.053”
Context: 10.5
RP-26-18-39Rio Puerco · uraniumGrade: 0.295Grade Unit: % U3O8Intercept: 8.2296 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-39
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.295
- Grade Unit
- % U3O8
- Intercept
- 8.2296 m
- True Width
- 8.2296 m
- From
- 200.46936 m
- To
- 208.63896 m
- Hole Depth
- 229.45744 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This is a strong intercept with good grade and width, highlighted by the company as a key result, contributing significantly to the positive outlook for the project.
Positive factors
- Strong grade (0.295% eU3O8) for uranium.
- Significant intercept length (8.23 m).
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.295”
Context: 27.0
RP-26-18-96Rio Puerco · uraniumGrade: 0.097Grade Unit: % U3O8Intercept: 3.3528 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-96
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.097
- Grade Unit
- % U3O8
- Intercept
- 3.3528 m
- True Width
- 3.3528 m
- From
- 200.5584 m
- To
- 203.9112 m
- Hole Depth
- 233.9916 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak to moderate uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak to moderate grade (0.097% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.097”
Context: 11.0
RP-26-18-233Rio Puerco · uraniumGrade: 0.17Grade Unit: % U3O8Intercept: 2.1336 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-233
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.17
- Grade Unit
- % U3O8
- Intercept
- 2.1336 m
- True Width
- 2.1336 m
- From
- 208.88904 m
- To
- 211.01304 m
- Hole Depth
- 221.95896 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows moderate uranium mineralization, contributing positively to the overall program success and validation of historical data, with good confidence in the reported width.
Positive factors
- Moderate grade (0.170% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.170”
Context: 7.0
RP-26-18-408Rio Puerco · uraniumGrade: 0.082Grade Unit: % U3O8Intercept: 2.7432 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-408
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.082
- Grade Unit
- % U3O8
- Intercept
- 2.7432 m
- True Width
- 2.7432 m
- From
- 157.4916 m
- To
- 160.1196 m
- Hole Depth
- 197.99352 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak to moderate uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak to moderate grade (0.082% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.082”
Context: 9.0
RP-26-18-467Rio Puerco · uraniumGrade: 0.109Grade Unit: % U3O8Intercept: 1.524 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-467
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.109
- Grade Unit
- % U3O8
- Intercept
- 1.524 m
- True Width
- 1.524 m
- From
- 149.87736 m
- To
- 151.40736 m
- Hole Depth
- 200.95944 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows moderate uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Moderate grade (0.109% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.109”
Context: 5.0
RP-26-18-467Rio Puerco · uraniumGrade: 0.046Grade Unit: % U3O8Intercept: 1.9812 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-467
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.046
- Grade Unit
- % U3O8
- Intercept
- 1.9812 m
- True Width
- 1.9812 m
- From
- 165.17616 m
- To
- 167.63736 m
- Hole Depth
- 200.95944 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.046% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.046”
Context: 6.5
RP-26-18-467Rio Puerco · uraniumGrade: 0.046Grade Unit: % U3O8Intercept: 7.1628 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-467
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.046
- Grade Unit
- % U3O8
- Intercept
- 7.1628 m
- True Width
- 7.1628 m
- From
- 175.77816 m
- To
- 182.94096 m
- Hole Depth
- 200.95944 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization over a reasonable width, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.046% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.046”
Context: 23.5
RP-26-18-510Rio Puerco · uraniumGrade: 0.112Grade Unit: % U3O8Intercept: 3.2004 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-510
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.112
- Grade Unit
- % U3O8
- Intercept
- 3.2004 m
- True Width
- 3.2004 m
- From
- 157.4916 m
- To
- 160.62336 m
- Hole Depth
- 221.95896 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows moderate uranium mineralization, contributing positively to the overall program success and validation of historical data, with good confidence in the reported width.
Positive factors
- Moderate grade (0.112% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.112”
Context: 10.5
RP-26-18-510Rio Puerco · uraniumGrade: 0.086Grade Unit: % U3O8Intercept: 1.9812 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-510
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.086
- Grade Unit
- % U3O8
- Intercept
- 1.9812 m
- True Width
- 1.9812 m
- From
- 173.39856 m
- To
- 175.32936 m
- Hole Depth
- 221.95896 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak to moderate uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak to moderate grade (0.086% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.086”
Context: 6.5
RP-26-18-512Rio Puerco · uraniumGrade: 0.09Grade Unit: % U3O8Intercept: 3.9624 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-512
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.09
- Grade Unit
- % U3O8
- Intercept
- 3.9624 m
- True Width
- 3.9624 m
- From
- 173.4312 m
- To
- 177.3936 m
- Hole Depth
- 227.93664 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak to moderate uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak to moderate grade (0.090% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.090”
Context: 13.0
RP-26-18-512Rio Puerco · uraniumGrade: 0.027Grade Unit: % U3O8Intercept: 8.382 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-512
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.027
- Grade Unit
- % U3O8
- Intercept
- 8.382 m
- True Width
- 8.382 m
- From
- 178.308 m
- To
- 186.69 m
- Hole Depth
- 227.93664 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.027% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.027”
Context: 27.5
RP-26-18-613Rio Puerco · uraniumGrade: 0.109Grade Unit: % U3O8Intercept: 1.3716 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-613
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.109
- Grade Unit
- % U3O8
- Intercept
- 1.3716 m
- True Width
- 1.3716 m
- From
- 187.66776 m
- To
- 189.03456 m
- Hole Depth
- 203.94968 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows moderate uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Moderate grade (0.109% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.109”
Context: 4.5
RP-26-18-613Rio Puerco · uraniumGrade: 0.057Grade Unit: % U3O8Intercept: 2.4384 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-613
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.057
- Grade Unit
- % U3O8
- Intercept
- 2.4384 m
- True Width
- 2.4384 m
- From
- 190.10616 m
- To
- 192.54936 m
- Hole Depth
- 203.94968 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.057% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.057”
Context: 8.0
RP-26-18-640Rio Puerco · uraniumGrade: 0.057Grade Unit: % U3O8Intercept: 4.2672 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-640
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.057
- Grade Unit
- % U3O8
- Intercept
- 4.2672 m
- True Width
- 4.2672 m
- From
- 166.08792 m
- To
- 170.35872 m
- Hole Depth
- 200.95944 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.057% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.057”
Context: 14.0
RP-26-18-640Rio Puerco · uraniumGrade: 0.331Grade Unit: % U3O8Intercept: 3.81 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-640
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.331
- Grade Unit
- % U3O8
- Intercept
- 3.81 m
- True Width
- 3.81 m
- From
- 181.63392 m
- To
- 185.4432 m
- Hole Depth
- 200.95944 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This is a strong intercept with good grade and width, highlighted by the company as a key result, contributing significantly to the positive outlook for the project.
Positive factors
- Strong grade (0.331% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.331”
Context: 12.5
RP-26-18-691Rio Puerco · uraniumGrade: 0.072Grade Unit: % U3O8Intercept: 4.8768 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-691
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.072
- Grade Unit
- % U3O8
- Intercept
- 4.8768 m
- True Width
- 4.8768 m
- From
- 221.89464 m
- To
- 226.71024 m
- Hole Depth
- 247.43904 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.072% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.072”
Context: 16.0
RP-26-18-804Rio Puerco · uraniumGrade: 0.042Grade Unit: % U3O8Intercept: 3.2004 mView all detailsHide details
Identity
- Hole ID
- RP-26-18-804
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.042
- Grade Unit
- % U3O8
- Intercept
- 3.2004 m
- True Width
- 3.2004 m
- From
- 187.20336 m
- To
- 190.33512 m
- Hole Depth
- 215.9508 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- underground
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- Lab Certified
- No
- QP Signed
- Yes
- QA/QC Methods
- downhole gamma logging, resistivity logging, deviation measurements, dead-time correction, K-factor correction, borehole diameter correction, borehole fluid corrections
Metal Equivalent
- Assumptions Disclosed
- Yes
Compositing
- Cutoff Grade
- 0.02
- Cutoff Unit
- % U3O8
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This intercept shows weak uranium mineralization, contributing to the overall understanding of the deposit, with good confidence in the reported width.
Positive factors
- Weak grade (0.042% eU3O8) for uranium.
- True width assumed due to vertical holes and horizontal mineralization.
Negative factors
- Grade is equivalent uranium (eU3O8) from gamma logging, not chemical assay.
Evidence · table
“0.042”
Context: 10.5
Fact 22Rio Puerco · uraniumGrade: 0.09Grade Unit: % U3O8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rio Puerco
- Commodity
- uranium
- Region
- mexico
- Reported Region
- New Mexico
- Ticker
- NSU
Geometry
- Grade
- 0.09
- Grade Unit
- % U3O8
Compositing
- Cutoff Grade
- 0.03
- Cutoff Unit
- % U3O8
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2009-01-01T00:00:00.000Z
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: This is a historical resource estimate from 2009 that is explicitly stated as non-compliant with current NI 43-101 standards and not verified by a QP, significantly limiting its reliability and materiality for current evaluation.
Positive factors
- Provides a historical baseline for the project's potential.
Negative factors
- Historical estimate, not NI 43-101 compliant.
- Not verified by a Qualified Person.
- Should not be relied upon as current.
Evidence · text
“A historical resource estimate of 6.0 million tonnes at an average grade of 0.09% eU3O8 for 11.4 million pounds of U3O8 was reported for Rio Puerco in 2009 by Monaro Mining NL (the "Historical Resource ").”
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.