Tribeca Resources Discovers New Shallow Copper-Gold System Below Cover at La Higuera with 67 metres of 0.52% Copper, 0.15 g/t Gold Intersected from 71 metres in First Hole into Chirsposo Sur Target
Original announcement by jmn on
- Company
- Tribeca Resources Corporation
- Ticker
- TRBC
- Exchange
- TSXV
- Region
- northern Chile
- Primary commodity
- Copper
- Secondary commodities
- Gold, Cobalt
- Document categories
- Drill results
- Extracted
- 2026-10-06 12:20:26 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Tribeca Resources has reported its first drill results from the Chirsposo Sur target at the La Higuera IOCG Project in Chile. The CSS001 hole intersected 67 metres of 0.52% Cu and 0.15 g/t Au, including a higher-grade 29m interval of 0.91% Cu and 0.26 g/t Au.
Reasoning: First drill hole into the Chirsposo Sur target returned significant copper-gold mineralization, confirming the presence of a new system within the La Higuera IOCG district.
Positive factors
- New discovery under cover at Chirsposo Sur target
- Strong intercept of 0.91% Cu and 0.26 g/t Au
- Mineralization resembles known Gaby target 4km away
- Supports district-scale IOCG interpretation
Negative factors
- True thickness of intersection is currently unknown
- Assays for remaining holes in program are still pending
Facts used in scoring: 9
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The hole CSS001 is the first drill hole into the discrete Chirsposo Sur target, representing a new discovery area.
Evidence · text
“first of four drill holes completed during the maiden drill program at the discrete Chirsposo Sur target”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release discloses the use of field duplicates, standards, and blanks, and names the Cotecna laboratory.
Evidence · text
“utilizes field duplicates, standards and blanks”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The document explicitly states that the true thickness of the mineralized intersection is unknown.
Evidence · text
“the true thickness of this mineralized intersection is unknown”
Extracted facts
Stored fact records: 9. Some facts used in scoring do not have a stored record.
Drill Results (9)
CSS001Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · copperGrade: 0.52Grade Unit: %Intercept: 67 mView all detailsHide details
Identity
- Hole ID
- CSS001
- Project
- Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault
- Commodity
- copper
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 0.52
- Grade Unit
- %
- Intercept
- 67 m
- From
- 71 m
- To
- 138 m
- Intercept Depth
- 71 m
Classification
- Deposit Type
- iocg
- Program
- exploration
- Sample Type
- drill
- Group ID
- CSS001:71-138
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.68
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Solid intercept in a new target area.
Positive factors
- Significant width of 67m
Negative factors
- True width unknown
Evidence · table
“0.52”
Context: 67
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CSS001Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · goldGrade: 0.15Grade Unit: g/tIntercept: 67 mView all detailsHide details
Identity
- Hole ID
- CSS001
- Project
- Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault
- Commodity
- gold
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 0.15
- Grade Unit
- g/t
- Intercept
- 67 m
- From
- 71 m
- To
- 138 m
- Intercept Depth
- 71 m
Classification
- Deposit Type
- iocg
- Program
- exploration
- Sample Type
- drill
- Group ID
- CSS001:71-138
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.68
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Gold grade is modest but accompanies significant copper.
Evidence · table
“0.15”
Context: 67
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CSS001Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · copperGrade: 0.91Grade Unit: %Intercept: 29 mView all detailsHide details
Identity
- Hole ID
- CSS001
- Project
- Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault
- Commodity
- copper
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 0.91
- Grade Unit
- %
- Intercept
- 29 m
- From
- 75 m
- To
- 104 m
- Intercept Depth
- 75 m
Classification
- Deposit Type
- iocg
- Program
- exploration
- Sample Type
- drill
- Group ID
- CSS001:75-104
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 1.16
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Strong high-grade component within the main intercept.
Positive factors
- High grade sub-interval
Evidence · table
“0.91”
Context: 29
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CSS001Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · goldGrade: 0.26Grade Unit: g/tIntercept: 29 mView all detailsHide details
Identity
- Hole ID
- CSS001
- Project
- Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault
- Commodity
- gold
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 0.26
- Grade Unit
- g/t
- Intercept
- 29 m
- From
- 75 m
- To
- 104 m
- Intercept Depth
- 75 m
Classification
- Deposit Type
- iocg
- Program
- exploration
- Sample Type
- drill
- Group ID
- CSS001:75-104
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Higher grade gold component.
Evidence · table
“0.26”
Context: 29
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CSS001Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · cobaltGrade: 170Grade Unit: ppmIntercept: 67 mView all detailsHide details
Identity
- Hole ID
- CSS001
- Project
- Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault
- Commodity
- cobalt
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 170
- Grade Unit
- ppm
- Intercept
- 67 m
- From
- 71 m
- To
- 138 m
- Intercept Depth
- 71 m
Classification
- Deposit Type
- iocg
- Program
- exploration
- Sample Type
- drill
- Group ID
- CSS001:71-138
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.68
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Presence of cobalt as a byproduct.
Evidence · table
“170”
Context: 67
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CSS001Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault · cobaltGrade: 224Grade Unit: ppmIntercept: 29 mView all detailsHide details
Identity
- Hole ID
- CSS001
- Project
- Gaby is located 4km to the north of Chirsposo Sur and is interpreted to be located along a similar north-south fault
- Commodity
- cobalt
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 224
- Grade Unit
- ppm
- Intercept
- 29 m
- From
- 75 m
- To
- 104 m
- Intercept Depth
- 75 m
Classification
- Deposit Type
- iocg
- Program
- exploration
- Sample Type
- drill
- Group ID
- CSS001:75-104
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Higher cobalt in the high-grade sub-interval.
Evidence · table
“224”
Context: 29
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
incl.La Higuera · copperGrade: 0.91Grade Unit: %Intercept: 29 mView all detailsHide details
Identity
- Hole ID
- incl.
- Project
- La Higuera
- Commodity
- copper
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 0.91
- Grade Unit
- %
- Intercept
- 29 m
- From
- 75 m
- To
- 104 m
- Intercept Depth
- 75 m
Classification
- Deposit Type
- iocg
- Sample Type
- drill
- Group ID
- incl.:75-104
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 1.16
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Expanded from assay table. 0.91 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 26.4 %·m is weak (grade alone is exceptional; the better of the two is used).
Positive factors
- 0.91 % copper is exceptional on the iocg deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.91”
Context: incl.
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
incl.La Higuera · goldGrade: 0.26Grade Unit: g/tIntercept: 29 mView all detailsHide details
Identity
- Hole ID
- incl.
- Project
- La Higuera
- Commodity
- gold
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 0.26
- Grade Unit
- g/t
- Intercept
- 29 m
- From
- 75 m
- To
- 104 m
- Intercept Depth
- 75 m
Classification
- Deposit Type
- iocg
- Sample Type
- drill
- Group ID
- incl.:75-104
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 1.16
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Expanded from assay table. 0.26 g/t gold is below against the open_pit mining band [5, 2, 1, 0.3] g/t. Grade×width 7.5 g/t·m is below.
Negative factors
- 0.26 g/t gold is below the weak threshold (0.3 g/t) on the open_pit mining band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.26”
Context: incl.
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
incl.La Higuera · cobaltGrade: 224Grade Unit: ppmIntercept: 29 mView all detailsHide details
Identity
- Hole ID
- incl.
- Project
- La Higuera
- Commodity
- cobalt
- Region
- chile
- Reported Region
- chile
- Ticker
- TRBC
Geometry
- Grade
- 224
- Grade Unit
- ppm
- Intercept
- 29 m
- From
- 75 m
- To
- 104 m
- Intercept Depth
- 75 m
Classification
- Deposit Type
- iocg
- Sample Type
- drill
- Group ID
- incl.:75-104
- Mining Method
- open_pit
QA/QC
- Laboratory
- Cotecna
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 1.16
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: Expanded from assay table: 224 ppm cobalt, reported in a unit the rubric does not cover (%).
Negative factors
- Grade unit ppm does not match the cobalt rubric unit %; not scored.
Evidence · table
“224”
Context: incl.
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
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
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.