SRZ: Severn Drilling Hits High Grade Tin 150m North of Resource
Original announcement by asx on
- Company
- Stellar Resources Limited
- Ticker
- SRZ
- Exchange
- ASX
- Region
- Western Tasmania
- Primary commodity
- Tin
- Secondary commodities
- None reported
- Document categories
- Drill results, Other, Resource update
- Extracted
- 2026-10-06 23:05:51 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Stellar Resources Limited announced high-grade tin drill results from hole ZM194 at its Heemskirk Tin Project in Western Tasmania, extending the Severn structure 150m north of the existing resource. Key intercepts include 2.1m at 1.40% Sn and 0.9m at 1.39% Sn, indicating potential to link the Severn and Montana resources. The company is undertaking follow-up drilling and integrating these extensions into its Prefeasibility Study to optimize the project's development case.
Reasoning: New high-grade tin intercepts from drill hole ZM194 extend the Severn structure 150m north of the existing resource, demonstrating significant potential to link the Severn and Montana resources and enhance the project's overall scale and economics. The results are supported by transparent QA/QC and compositing disclosures.
Positive factors
- high_grade_intercepts
- step_out_extension
- potential_resource_linkage
- qaqc_disclosed
- compositing_transparent
Negative factors
- apparent_width_only
Low confidence — this extraction should be reviewed alongside the original source.
Facts used in scoring: 7
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: The intercepts of 1.40% Sn and 1.39% Sn are above the strong grade threshold (1.3% Sn) for tin.
Evidence · text
“2.1m @ 1.40% Sn from 206.1m”
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: The intercepts of 1.40% Sn and 1.39% Sn are above the strong grade threshold (1.3% Sn) for tin.
Evidence · text
“0.9m @ 1.39% Sn from 216.8m”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Drill hole ZM194 intersected high-grade tin 150m north of the Severn Resource, indicating potential to link with the Montana Resource.
Evidence · text
“Intersecting high-grade tin 150m north of Severn at shallower depths is a major development in our geological understanding that substantially increases our confidence in the potential for Severn and Montana to merge into a single, unified deposit.”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release includes detailed QA/QC procedures, including the use of certified reference materials, blanks, and duplicates, and mentions ALS Laboratories for analysis.
Evidence · text
“Certified reference material (CRM) are inserted approximately every 20 samples using custom made CRM material by OREAS with grades of ~ 0.3, 0.7 and 1.5% Sn Course blanks and fine blank OREAS 22e are also inserted after mineralised zones. Duplicate samples are requested approximately every 20 samples for the lab to repeat the sample.”
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: The cut-off grade and internal dilution rules for reported intervals are clearly stated.
Evidence · text
“Individual intervals calculated using a 0.10% Sn lower cut off and no more than 1m of consecutive internal dilution.”
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 interval is given as downhole width with a general estimation of true width (70%) but no specific true width for each intercept.
Evidence · text
“Drillhole ZM194 intersected mineralisation at ~ 45o to the modelled dip of the ore body. Hence the true widths are ~70% of the reported interval widths.”
Extracted facts
Stored fact records: 7. Some facts used in scoring do not have a stored record.
Drill Results (7)
ZM194Heemskirk · tinGrade: 0.44Grade Unit: %Intercept: 1 mView all detailsHide details
Identity
- Hole ID
- ZM194
- Project
- Heemskirk
- Commodity
- tin
- Region
- australia_tas
- Reported Region
- australia_tas
- Ticker
- SRZ
Geometry
- Grade
- 0.44
- Grade Unit
- %
- Intercept
- 1 m
- From
- 189.3 m
- To
- 190.3 m
- Hole Depth
- 371.4 m
- Intercept Depth
- 189.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZM194:189.3-190.3
- Mining Method
- underground
Location
- Easting
- 361192.1
- Northing
- 5362172.7
- Elevation
- 182 m
- Azimuth
- 322 °
- Dip
- -70 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sn
- Dilution Disclosed
- Yes
- Max Dilution
- 1 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: A narrow intercept with a weak tin grade, but from a new exploration hole with transparent QA/QC.
Positive factors
- qaqc_disclosed
- compositing_transparent
Negative factors
- weak_grade
- narrow_interval
- apparent_width_only
Evidence · table
“0.44”
Context: 1
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "Tin is believed to be sourced from a granite intrusion located over 1km from surface below the deposit."
ZM194Heemskirk · tinGrade: 0.16Grade Unit: %Intercept: 3.6 mView all detailsHide details
Identity
- Hole ID
- ZM194
- Project
- Heemskirk
- Commodity
- tin
- Region
- australia_tas
- Reported Region
- australia_tas
- Ticker
- SRZ
Geometry
- Grade
- 0.16
- Grade Unit
- %
- Intercept
- 3.6 m
- From
- 193.4 m
- To
- 197 m
- Hole Depth
- 371.4 m
- Intercept Depth
- 189.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZM194:193.4-197
- Mining Method
- underground
Location
- Easting
- 361192.1
- Northing
- 5362172.7
- Elevation
- 182 m
- Azimuth
- 322 °
- Dip
- -70 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sn
- Dilution Disclosed
- Yes
- Max Dilution
- 1 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: A weak tin intercept from a new exploration hole, contributing to understanding the mineralized zone.
Positive factors
- qaqc_disclosed
- compositing_transparent
Negative factors
- weak_grade
- apparent_width_only
Evidence · table
“0.16”
Context: 3.6
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "Tin is believed to be sourced from a granite intrusion located over 1km from surface below the deposit."
ZM194Heemskirk · tinGrade: 0.74Grade Unit: %Intercept: 1 mView all detailsHide details
Identity
- Hole ID
- ZM194
- Project
- Heemskirk
- Commodity
- tin
- Region
- australia_tas
- Reported Region
- australia_tas
- Ticker
- SRZ
Geometry
- Grade
- 0.74
- Grade Unit
- %
- Intercept
- 1 m
- From
- 201 m
- To
- 202 m
- Hole Depth
- 371.4 m
- Intercept Depth
- 189.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZM194:201-202
- Mining Method
- underground
Location
- Easting
- 361192.1
- Northing
- 5362172.7
- Elevation
- 182 m
- Azimuth
- 322 °
- Dip
- -70 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sn
- Dilution Disclosed
- Yes
- Max Dilution
- 1 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: A narrow intercept with a moderate tin grade, from a new exploration hole.
Positive factors
- moderate_grade
- qaqc_disclosed
- compositing_transparent
Negative factors
- narrow_interval
- apparent_width_only
Evidence · table
“0.74”
Context: 1
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "Tin is believed to be sourced from a granite intrusion located over 1km from surface below the deposit."
ZM194Heemskirk · tinGrade: 0.82Grade Unit: %Intercept: 3.9 mView all detailsHide details
Identity
- Hole ID
- ZM194
- Project
- Heemskirk
- Commodity
- tin
- Region
- australia_tas
- Reported Region
- australia_tas
- Ticker
- SRZ
Geometry
- Grade
- 0.82
- Grade Unit
- %
- Intercept
- 3.9 m
- From
- 206.1 m
- To
- 210 m
- Hole Depth
- 371.4 m
- Intercept Depth
- 189.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZM194:206.1-210
- Mining Method
- underground
Location
- Easting
- 361192.1
- Northing
- 5362172.7
- Elevation
- 182 m
- Azimuth
- 322 °
- Dip
- -70 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sn
- Dilution Disclosed
- Yes
- Max Dilution
- 1 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: A moderate-grade tin intercept from a new exploration hole, extending the mineralisation and supported by transparent QA/QC.
Positive factors
- moderate_grade
- step_out_extension
- qaqc_disclosed
- compositing_transparent
Negative factors
- apparent_width_only
Evidence · table
“0.82”
Context: 3.9
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "Tin is believed to be sourced from a granite intrusion located over 1km from surface below the deposit."
ZM194Heemskirk · tinGrade: 1.4Grade Unit: %Intercept: 2.1 mView all detailsHide details
Identity
- Hole ID
- ZM194
- Project
- Heemskirk
- Commodity
- tin
- Region
- australia_tas
- Reported Region
- australia_tas
- Ticker
- SRZ
Geometry
- Grade
- 1.4
- Grade Unit
- %
- Intercept
- 2.1 m
- From
- 206.1 m
- To
- 208.2 m
- Hole Depth
- 371.4 m
- Intercept Depth
- 189.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZM194:206.1-208.2
- Mining Method
- underground
Location
- Easting
- 361192.1
- Northing
- 5362172.7
- Elevation
- 182 m
- Azimuth
- 322 °
- Dip
- -70 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sn
- Dilution Disclosed
- Yes
- Max Dilution
- 1 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: A high-grade tin intercept (strong tier) from a new exploration hole, significantly extending the mineralisation and supported by transparent QA/QC.
Positive factors
- bonanza_intercept
- strong_grade
- step_out_extension
- qaqc_disclosed
- compositing_transparent
Negative factors
- apparent_width_only
Evidence · table
“1.40”
Context: 2.1
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "Tin is believed to be sourced from a granite intrusion located over 1km from surface below the deposit."
ZM194Heemskirk · tinGrade: 0.41Grade Unit: %Intercept: 3.7 mView all detailsHide details
Identity
- Hole ID
- ZM194
- Project
- Heemskirk
- Commodity
- tin
- Region
- australia_tas
- Reported Region
- australia_tas
- Ticker
- SRZ
Geometry
- Grade
- 0.41
- Grade Unit
- %
- Intercept
- 3.7 m
- From
- 214 m
- To
- 217.7 m
- Hole Depth
- 371.4 m
- Intercept Depth
- 189.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZM194:214-217.7
- Mining Method
- underground
Location
- Easting
- 361192.1
- Northing
- 5362172.7
- Elevation
- 182 m
- Azimuth
- 322 °
- Dip
- -70 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sn
- Dilution Disclosed
- Yes
- Max Dilution
- 1 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: A weak-grade tin intercept from a new exploration hole, contributing to the extension of mineralisation and supported by transparent QA/QC.
Positive factors
- step_out_extension
- qaqc_disclosed
- compositing_transparent
Negative factors
- weak_grade
- apparent_width_only
Evidence · table
“0.41”
Context: 3.7
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "Tin is believed to be sourced from a granite intrusion located over 1km from surface below the deposit."
ZM194Heemskirk · tinGrade: 1.39Grade Unit: %Intercept: 0.9 mView all detailsHide details
Identity
- Hole ID
- ZM194
- Project
- Heemskirk
- Commodity
- tin
- Region
- australia_tas
- Reported Region
- australia_tas
- Ticker
- SRZ
Geometry
- Grade
- 1.39
- Grade Unit
- %
- Intercept
- 0.9 m
- From
- 216.8 m
- To
- 217.7 m
- Hole Depth
- 371.4 m
- Intercept Depth
- 189.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- ZM194:216.8-217.7
- Mining Method
- underground
Location
- Easting
- 361192.1
- Northing
- 5362172.7
- Elevation
- 182 m
- Azimuth
- 322 °
- Dip
- -70 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sn
- Dilution Disclosed
- Yes
- Max Dilution
- 1 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-06T00:00:00.000Z
Reasoning: A high-grade tin intercept (strong tier) from a new exploration hole, contributing to the extension of mineralisation and supported by transparent QA/QC, despite its narrow width.
Positive factors
- bonanza_intercept
- strong_grade
- step_out_extension
- qaqc_disclosed
- compositing_transparent
Negative factors
- narrow_interval
- apparent_width_only
Evidence · table
“1.39”
Context: 0.9
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "Tin is believed to be sourced from a granite intrusion located over 1km from surface below the deposit."
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.