THIS ANNOUNCEMENT CONTAINS INSIDE
INFORMATION FOR THE PURPOSES OF ARTICLE 7 OF REGULATION 2014/596/EU
WHICH IS PART OF DOMESTIC UK LAW PURSUANT TO THE MARKET ABUSE
(AMENDMENT) (EU EXIT) REGULATIONS (SI 2019/310) ("UK MAR"). UPON
THE PUBLICATION OF THIS ANNOUNCEMENT, THIS INSIDE INFORMATION (AS
DEFINED IN UK MAR) IS NOW CONSIDERED TO BE IN THE PUBLIC
DOMAIN.
NOT FOR RELEASE, PUBLICATION OR
DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY IN OR
INTO THE UNITED STATES, AUSTRALIA, CANADA, JAPAN, THE REPUBLIC OF
SOUTH AFRICA OR ANY OTHER JURISDICTION WHERE TO DO SO WOULD
CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH
JURISDICTION.
27 February 2024
Cobra Resources
plc
("Cobra"
or the "Company")
Historical Drillhole Re-Assay
Results
Results support massive scale
potential of palaeochannel hosted ionic rare
earths
Cobra,
an exploration company focused on the Wudinna Project ("Wudinna")
in South Australia, is pleased to announce that Stage 1 re-analysis
of historical drillholes, designed to demonstrate the regional
scale potential of the Boland ionic rare earth discovery across
several Cobra tenements, has defined Heavy Rare Earth Oxide
("HREO") enriched mineralisation within the Yaninee Palaeochannel,
located ~30km southwest of Boland, where Rare Earth Element ("REE")
mineralisation occurs proximal to sandstone hosted uranium
mineralisation.
Highlights
·
New
mineralisation system identified:
intersections enriched in HREOs occur in sediments within the
Yaninee Palaeochannel, located ~30km southwest of the Boland
prospect located in the Narlaby Palaeochannel
·
Results
demonstrate massive scale potential:
intersections within the Yaninee Palaeochannel confirm the
prospectivity across a further 150km2 of Cobra-held
palaeochannel
·
HREO
enrichment: intersections enriched
in high value Magnet Rare Earth Oxides ("MREOs") and
HREOs
·
In situ recovery
("ISR") potential: mineralisation
occurs within the same geological units as Boland, where conditions
support ISR mining and high recoveries using benign acidities with
low acid consumptions
·
Validation of REE
and uranium targeting: highest
grades of REE mineralisation occur proximal to and below sandstone
hosted uranium mineralisation at the Kattata prospect, where
re-analysis confirms historical intersections of up to 271 ppm
U3O81. This validates the
Company's complementary exploration strategy to target known
uranium roll-front mineralisation
·
Hard rock grab samples taken by previous explorers
at the Kattata workings are elevated in REEs, suggesting a
localised enriched source for ionic REE mineralisation
Significant intersections
include:
·
SBUO5008 intersects 3m at 818 ppm (MREO 32%, HREO
22%) from 52m, 3m at 810 ppm Total Rare Earth Oxides ("TREO") (MREO
27%, HREO 15%), 1m at 519 ppm TREO (22% MREO, 23% HREO) from 80m,
and 1m at 171 ppm U3O8 from 52m
·
IR 293 intersects 6m at 788 ppm TREO (MREO 20%,
HREO 9%) from 46m, including 2m at 1,090 ppm TREO (MREO 20%, HREO
12%) from 50m
·
RD1 intersects 6m at 514 ppm (MREO 24%, HREO 37%)
from 54m
·
IR 295 intersects 4m at 553 ppm TREO (MREO 21%)
from 38m
·
IR 294 intersects 4m at 512 ppm TREO (MREO 22%)
from 42m
·
All results are from composited downhole samples,
with grade concentrations expected over narrower
intersections
·
Stage 2 re-analysis will test:
o Intervals from 20 holes on the Narlaby Palaeochannel to define
extensions to the Boland discovery
o Intervals from a further nine holes located within the Yaninee
Palaeochannel
o Intervals from ~50 drillholes from the Pureba tenement, where
holes proximal to roll-front uranium mineralisation will be
prioritised
Rupert Verco, CEO of Cobra,
commented:
"These results re-affirm our belief that the ionic REE
mineralisation confirmed at Boland is not isolated but part of an
extensive system within Cobra tenements that is amenable to low
cost, low disturbance ISR mining. This work will, in time, inform a
potentially substantial palaeochannel ionic rare earth mineral
resource estimate.
The proximity of REE mineralisation to sandstone hosted
mineralisation at Kattata also validates our strategy to target
high grade ionic REE mineralisation proximal to uranium roll-fronts
at the Yarranna South East prospect.
As
we focus on confirming the ISR potential at Boland, we will
continue to demonstrate scale whilst identifying high grade targets
and exploring uranium upside.
The amenability of mineralisation and geology to ISR is a
significant advantage that Cobra is moving quickly to demonstrate
given the extraction method's potential to offset the depth of
intersection and materially reduce mining costs. Through our
strategic work programme, we aim to demonstrate that the ionic REE
mineralisation across Cobra's significant land package presents as
one of the world's lowest cost sources of magnet and heavy rare
earths."
1
Open file envelopes No. 10677 Minataur Exploration Pty Ltd,
2004
Figure 1: Stage 1 re-analysis
results and the location of drillholes to be re-assayed in Stage
2
Enquiries:
|
Cobra Resources plc
Rupert Verco (Australia)
Dan Maling (UK)
|
via Vigo
Consulting
+44 (0)20
7390 0234
|
|
SI
Capital Limited (Joint Broker)
Nick Emerson
Sam Lomanto
|
+44
(0)1483 413 500
|
|
Global Investment Strategy (Joint Broker)
James Sheehan
|
+44 (0)20
7048 9437
james.sheehan@gisukltd.com
|
|
Vigo
Consulting (Financial Public Relations)
Ben Simons
Kendall Hill
|
+44 (0)20
7390 0234
cobra@vigoconsulting.com
|
The person who arranged for the
release of this announcement was Rupert Verco, Managing Director of
the Company.
About Cobra
Cobra is defining a unique
multi-mineral resource at the Wudinna Gold and Rare Earth Project
in South Australia's Gawler Craton, a tier one mining and
exploration jurisdiction which hosts several world-class mines.
Cobra's Wudinna tenements totalling 1,832 km2, and other
nearby tenement rights totalling 2,941 km2,
contain highly desirable and ionic rare
earth mineralisation, amenable to low-cost, low impact in situ
recovery mining, and critical to global decarbonisation.
Additionally, Cobra holds a 213 km2 exploration tenement
in northern Tasmania which is also considered highly prospective
for ionic rare earth mineralisation.
Cobra's Wudinna tenements also
contain extensive orogenic gold mineralisation and are
characterised by potentially open-pitable, high-grade gold
intersections, with ready access to infrastructure. Cobra has 22
orogenic gold targets outside of the current 279,000 Oz gold JORC
Mineral Resource Estimate, and several iron oxide copper gold
(IOCG) targets.
Follow us on social media:
LinkedIn: https://www.linkedin.com/company/cobraresourcesplc
Twitter: https://twitter.com/Cobra_Resources
Subscribe to our news alert service:
https://cobraplc.com/news/
Further information regarding
Cobra's rare earth strategy
Cobra is investigating occurrences
of REEs which it soon hopes to prove can be recovered:
· cost
efficiently with minimal infrastructure
· by a
time efficient mining process known as ISR
· with a
significantly reduced environmental footprint
Cobra's extensive landholding lies
within the Southern Gawler Craton in South Australia, where Hiltaba
Suite rocks - long known to contain elevated levels of REEs
(evident at a number of world class mineral deposits like Olympic
Dam) - outcrop and have been subject to prolonged weathering in
naturally acidic groundwaters.
Exploration to date has demonstrated
that extended weathering cycles have released REEs from their
crystal structure in minerals such as bastnaesite, monazite and
xenotime, allowing REE ions to move in groundwater until they
become loosely attached (by ionic adsorption) to the surfaces of
clay particles within less acidic palaeochannels.
The Company intends to demonstrate
that by temporarily restoring the palaeochannel groundwater to its
original acidity, the REEs will be released to solution (via ion
exchange) and become accessible by pumping groundwater to the
surface.
Initial metallurgical test work
performed by ANSTO has demonstrated exceptionally high ion exchange
recoveries at an acidity equivalent to orange juice. Cobra is now
moving to field trial the ISR process at the Boland prospect. ISR
has been used successfully in South Australia for decades for the
cost efficient, safe and environmentally friendly recovery of
uranium.
Further information regarding
re-analysis results
REEs and uranium are sourced from
similar minerals such as zircon, monazite, and xenotime within the
enriched Hiltaba Suite granites of the Gawler Craton. Natural
weathering and supergene leaching mobilises both uranium and REEs
within acidic (and enriched) groundwaters that migrate through the
Narlaby system. Whilst the chemistry for the secondary deposition
for REDOX and ionic adsorption differ, the geological mechanisms
that promote the oxidation for REDOX roll-fronts are likely to
produce chemical boundaries that promote physisorption (the
adsorption of REEs to clays). This warrants that the exploration
approach targets oxidation sources that promote the deposition of
both REEs and uranium.
The historical Kattata gold workings
on Cobra's Yaninee tenement were reportedly worked from 1905-1941
and assays of hematite + chlorite brecciated granite mine spoils
analysed by previous explorers yielded anomalous REE and hematite.
Follow-up drilling identified roll-front hosted uranium across a
>500m transect where grades of up to 271 ppm
U3O8 were defined within reduced
sands.
The objective of Stage-1 re-analysis
was to identify the regional scale potential for ionic REE
mineralisation analogous to the Company's Boland ionic REE project
across Cobra's extensive land tenure. Samples from 17 holes were
initially selected as they contained the same geological units that
host ionic REE mineralisation at the Boland prospect.
Results of Stage 1:
·
Confirm the thesis for regionally scalable ionic
rare earth mineralisation amenable to ISR mining
·
Validate the Company's strategy to target areas
proximal to known sandstone hosted uranium as re-analysis of
drillhole SBUO50008 confirms REE mineralisation directly below a
uranium intersection
·
Demonstrate mobility of heavy rare earths within
the palaeosystem, a characteristic of ionic REE deposits, as HREO
ratios vary greatly from 5% - 49% of the TREO between
intervals
·
Confirm the potential for ionic REE mineralisation
within the Yaninee Palaeochannel, where Cobra's 100% owned
exploration licence covers ~150km2 of the
paleochannel
·
Provide confidence in demonstrating further REE
intersections as the Company commences a second stage of REE
analysis with a focus on:
o Cost
effectively expanding the mineralisation footprint at Boland (20
holes)
o Testing regions proximal to known uranium mineralisation at
the Yarrana SE prospect (50 holes)
o Testing further holes within the Yaninee
Palaeochannel
Table 1: Stage 1 re-analysis
significant REE intersections
|
Drillhole
|
From (m)
|
To (m)
|
Int (m)
|
TREO ppm
|
Nd2O3
ppm
|
Pr6O11
ppm
|
Dy2O3 ppm
|
Tb2O3
ppm
|
MREO ppm
|
HREO ppm
|
|
SBUO5008
|
52
|
55
|
3
|
818
|
187
|
44
|
25
|
4.4
|
260
|
185
|
|
including
|
52
|
53
|
1
|
1314
|
297
|
66
|
46
|
8.1
|
418
|
290
|
|
and
|
74
|
77
|
3
|
810
|
157
|
46
|
13
|
2.3
|
218
|
120
|
|
and
|
80
|
81
|
1
|
519
|
81
|
22
|
12
|
1.8
|
116
|
119
|
|
IR 293
|
46
|
52
|
6
|
788
|
111
|
35
|
9
|
1.6
|
157
|
74
|
|
including
|
50
|
52
|
2
|
1090
|
152
|
47
|
14
|
2.5
|
215
|
128
|
|
IR 294
|
40
|
44
|
4
|
512
|
82
|
24
|
7
|
1.3
|
115
|
47
|
|
IR 295
|
38
|
42
|
4
|
553
|
88
|
26
|
4
|
0.8
|
119
|
29
|
|
RD 1
|
54
|
60
|
6
|
514
|
85
|
17
|
20
|
3.1
|
126
|
192
|
Table 2: Stage 1 re-analysis of
uranium intersections (greater than 10 times crustal
abundance)
|
Drillhole
|
From (m)
|
To (m)
|
Int (m)
|
U3O8
ppm
|
Th ppm
|
|
IR 291
|
28
|
30
|
2
|
49.8
|
2.3
|
|
IR 495
|
60
|
62
|
2
|
33.4
|
11.6
|
|
SBUO5008
|
52
|
55
|
3
|
76.8
|
1.3
|
|
SBUO5008
|
52
|
53
|
1
|
171.1
|
1.7
|
|
IR 1055
|
60
|
62
|
2
|
59.4
|
12.5
|
Appendix 1: JORC Code, 2012 Edition
- Table 1
Section 1 Sampling Techniques and Data
|
Criteria
|
JORC Code
explanation
|
Commentary
|
|
Sampling
techniques
|
·
Nature and
quality of sampling (eg cut channels, random chips, or specific
specialised industry standard measurement tools appropriate to the
minerals under investigation, such as down hole gamma sondes, or
handheld XRF instruments, etc). These examples should not be taken
as limiting the broad meaning of sampling.
·
Include
reference to measures taken to ensure sample representivity and the
appropriate calibration of any measurement tools or systems
used.
·
Aspects of the
determination of mineralisation that are Material to the Public
Report.
·
In cases where
'industry standard' work has been done this would be relatively
simple (eg 'reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for
fire assay'). In other cases more explanation may be required, such
as where there is coarse gold that has inherent sampling problems.
Unusual commodities or mineralisation types (eg submarine nodules)
may warrant disclosure of detailed information.
|
·
Rotary mud and aircore drilling were used to
obtain 1m sample intervals.
·
A number of core holes were drilled to validate
aircore results and estimate gamma radiation
disequilibrium.
·
Carpentaria Exploration Company Pty Ltd conducted
drilling between 1979 - 1984.
|
|
Drilling
techniques
|
·
Drill type (eg
core, reverse circulation, open-hole hammer, rotary air blast,
auger, Bangka, sonic, etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-sampling bit or other
type, whether core is oriented and if so, by what method,
etc).
|
· All
drillholes were drilled at 90 degrees (vertical) due to the
flat-lying nature of mineralisation.
· NQ
diameter (76mm) drill holes were used to obtain 1m down-hole
samples.
· Drillholes were wireline logged using undisclosed gamma
tools.
· Core
samples from twinned aircore holes were used to determine sample
representation and disequilibrium between gamma measured radiation
and actual Uranium quantities.
|
|
Drill sample
recovery
|
·
Method of
recording and assessing core and chip sample recoveries and results
assessed.
·
Measures taken
to maximise sample recovery and ensure representative nature of the
samples.
·
Whether a
relationship exists between sample recovery and grade and whether
sample bias may have occurred due to preferential loss/gain of
fine/coarse material.
|
· Reports imply that samples obtained by aircore drilling were
considered superior owing to circulation problems encountered with
rotary mud drilling.
· 1m
sample composites are considered to provide reasonable
representation of the style of mineralisation.
|
|
Logging
|
·
Whether core and
chip samples have been geologically and geotechnically logged to a
level of detail to support appropriate Mineral Resource estimation,
mining studies and metallurgical studies.
·
Whether logging
is qualitative or quantitative in nature. Core (or costean,
channel, etc) photography.
·
The total length
and percentage of the relevant intersections
logged.
|
· Drillhole samples were logged by a onsite geologist and
correlated to downhole geophysical logs that demonstrate
correlation between lithology units and gamma peaks.
· Oxidation state and the presence of reductants were
logged
· Sample
loss was recorded
· Pulps
have been reviewed and correlated to logging.
|
|
Sub-sampling techniques and
sample preparation
|
·
If core, whether
cut or sawn and whether quarter, half or all core
taken.
·
If non-core,
whether riffled, tube sampled, rotary split, etc and whether
sampled wet or dry.
·
For all sample
types, the nature, quality and appropriateness of the sample
preparation technique.
·
Quality control
procedures adopted for all sub-sampling stages to maximise
representivity of samples.
·
Measures taken
to ensure that the sampling is representative of the in situ
material collected, including for instance results for field
duplicate/second-half sampling.
·
Whether sample
sizes are appropriate to the grain size of the material being
sampled.
|
· Limited information concerning subsampling techniques is
available.
· Twinned core holes, measured disequilibrium factors and
duplicate sampling imply quality control.
|
|
Quality of assay data and
laboratory tests
|
·
The nature,
quality and appropriateness of the assaying and laboratory
procedures used and whether the technique is considered partial or
total.
·
For geophysical
tools, spectrometers, handheld XRF instruments, etc, the parameters
used in determining the analysis including instrument make and
model, reading times, calibrations factors applied and their
derivation, etc.
·
Nature of
quality control procedures adopted (eg standards, blanks,
duplicates, external laboratory checks) and whether acceptable
levels of accuracy (ie lack of bias) and precision have been
established.
|
· Original historic select samples were sent to COMLABS for XRF
and AAS analysis. Sample suites were variable across
submissions.
· Historic results are considered semiquantitative, further
re-assays would increase the confidence of historic sample
results.
· Chip
reassays were analysed via a 4 acid digest. This method is
considered a near total digest. Rare earth minerals have potential
for incomplete digestion. These minerals are not considered as
potential sources of extractable mineralization in this deposit
type.
|
|
Verification of sampling and
assaying
|
·
The verification
of significant intersections by either independent or alternative
company personnel.
·
The use of
twinned holes.
·
Documentation of
primary data, data entry procedures, data verification, data
storage (physical and electronic) protocols.
·
Discuss any
adjustment to assay data.
|
· Significant intercepts have been reviewed by Mr Rupert Verco
and reviewed by Mr Robert Blythman (the competent
persons)
· Pulp
samples retained within the Tonsely core library have been secured
and are being re-analysed to confirm results.
|
|
Location of data
points
|
·
Accuracy and
quality of surveys used to locate drill holes (collar and down-hole
surveys), trenches, mine workings and other locations used in
Mineral Resource estimation.
·
Specification of
the grid system used.
·
Quality and
adequacy of topographic control.
|
· Collar
locations have been sourced from the SARIG publicly available
dataset.
· Drill
collars were surveyed on local grids established using ensign GPS.
Coordinates have been transposed to AMG94 Zone 53.
|
|
Data spacing and
distribution
|
·
Data spacing for
reporting of Exploration Results.
·
Whether the data
spacing and distribution is sufficient to establish the degree of
geological and grade continuity appropriate for the Mineral
Resource and Ore Reserve estimation procedure(s) and
classifications applied.
·
Whether sample
compositing has been applied.
|
·
Samples were selected to provide representative
regional indicators of geology and mineralization without a fixed
spacing
·
No sample compositing has been applied
·
The data spacing and distribution is sufficient to
establish the degree of geological and grade continuity appropriate
for the interpretation of roll-front, sandstone hosted Uranium
mineralisation.
·
Interpretation of historic results supports the
flat lying continuous mineralisation.
|
|
Orientation of data in
relation to geological structure
|
·
Whether the
orientation of sampling achieves unbiased sampling of possible
structures and the extent to which this is known, considering the
deposit type.
·
If the
relationship between the drilling orientation and the orientation
of key mineralised structures is considered to have introduced a
sampling bias, this should be assessed and reported if
material.
|
·
Drillholes were vertical and drilled perpendicular
to the mineralization.
|
|
Sample
security
|
·
The measures
taken to ensure sample security.
|
·
The security procedures are unknown
|
|
Audits or
reviews
|
·
The results of
any audits or reviews of sampling techniques and
data.
|
·
No independent audits have been
undertaken.
·
The CSIRO re-analysed mineralized intersections,
actively too water samples and validated the factors of
disequilibrium being used to estimate Uranium grade.
·
Proceeding tenement holders confirmed Uranium
grades.
·
Cobra currently re-analysing results to confirm
Uranium grades.
|
Appendix 2: Section 2 Reporting of
Exploration Results
|
Criteria
|
JORC Code explanation
|
Commentary
|
|
Mineral tenement and land
tenure status
|
·
Type, reference
name/number, location and ownership including agreements or
material issues with third parties such as joint ventures,
partnerships, overriding royalties, native title interests,
historical sites, wilderness or national park and environmental
settings.
·
The security of
the tenure held at the time of reporting along with any known
impediments to obtaining a licence to operate in the
area.
|
·
EL6967 & 6968 are 100% held by Lady Alice
Mines Pty Ltd, a Cobra Resources Plc company.
·
Native title agreements need to be gained before
land access by the department of Environment and Water can be
granted.
|
|
Exploration done by other
parties
|
·
Acknowledgment
and appraisal of exploration by other parties.
|
·
Carpentaria: 1979-1984 explored for Sandstone
hosted Uranium.
·
Mount Isa Mines: 1984-1988 explored for Sandstone
hosted Uranium
·
BHP: 1989-1992 explored for heavy mineral sands
(HMS) and base metal
·
Peko Exploration: 1991-1992
·
Diamond Ventures explored for diamonds in
Kimberlites during the 1990s
·
Iluka: 2005-2016 explored for HMS and
Uranium
·
Minatour Exploration: 2000-2004 explored for
Sandstone hosted Uranium and IOCG mineralisation
·
Toro Energy Limited: 2004-2008 explored for
sandstone hosted Uranium
|
|
Geology
|
·
Deposit type,
geological setting and style of mineralisation.
|
·
Basement Geology is dominated by Archean Sleaford
and Proterozoic Hiltaba Suite Granites.
·
Granite plutons are enriched in uranium bearing
minerals with background U being ~10-20 times
background.
·
The Narlaby Palaeochanel and Eucla Basins overlie
basement rocks Interbedded channel sands sourced from local bedrock
and Eocene age clays are interbedded within the Palaeochannel and
basin.
·
Highly enrich groundwaters within the
Palaeochannel suggest the mobilization from both channel fill and
regional basement for Uranium and REE.
·
Uranium mineralisation is hosted in Roll-front
style mineralisation when fluids are oxidizing reduced channel
sediments
·
REE's are adsorbed to the contacts of reduced clay
interbeds.
|
|
Drillhole
Information
|
·
A summary of all
information material to the understanding of the exploration
results including a tabulation of the following information for all
Material drill holes:
o easting and northing of the
drill hole collar
o elevation or RL (Reduced
Level - elevation above sea level in metres) of the drill hole
collar
o dip and azimuth of the
hole
o down hole length and
interception depth
o hole
length.
·
If the exclusion
of this information is justified on the basis that the information
is not Material and this exclusion does not detract from the
understanding of the report, the Competent Person should clearly
explain why this is the case.
|
·
Plans demonstrate the location of
drillholes.
·
Coordinates can be publicly accesses through the
South Australian SARIG portal.
·
No relevant material has been excluded from this
release.
|
|
Data aggregation
methods
|
·
In reporting
Exploration Results, weighting averaging techniques, maximum and/or
minimum grade truncations (eg cutting of high grades) and cut-off
grades are usually Material and should be stated.
·
Where aggregate
intercepts incorporate short lengths of high grade results and
longer lengths of low grade results, the procedure used for such
aggregation should be stated and some typical examples of such
aggregations should be shown in detail.
·
The assumptions
used for any reporting of metal equivalent values should be clearly
stated.
|
·
Reported summary intercepts are weighted averages
based on length.
·
No maximum/ minimum grade cuts have been
applied.
·
eU3O8 grades have been calculated using a
disequilibrium factor of 1.8
|
|
Relationship between
mineralisation widths and intercept lengths
|
·
These
relationships are particularly important in the reporting of
Exploration Results.
·
If the geometry
of the mineralisation with respect to the drill hole angle is
known, its nature should be reported.
·
If it is not
known and only the down hole lengths are reported, there should be
a clear statement to this effect (eg 'down hole length, true width
not known').
|
·
Holes are drilled vertically. Reported
intersections reflect true width.
|
|
Diagrams
|
·
Appropriate maps
and sections (with scales) and tabulations of intercepts should be
included for any significant discovery being reported These should
include, but not be limited to a plan view of drill hole collar
locations and appropriate sectional views.
|
·
Relevant diagrams have been included in the
announcement.
·
|
|
Balanced
reporting
|
·
Where
comprehensive reporting of all Exploration Results is not
practicable, representative reporting of both low and high grades
and/or widths should be practiced to avoid misIeading reporting of
Exploration Results.
|
·
All drillhole locations have been shown on
plans
·
|
|
Other substantive exploration
data
|
·
Other
exploration data, if meaningful and material, should be reported
including (but not limited to): geological observations;
geophysical survey results; geochemical survey results; bulk
samples - size and method of treatment; metallurgical test results;
bulk density, groundwater, geotechnical and rock characteristics;
potential deleterious or contaminating
substances.
|
·
Reported results reflect publicly available
information.
|
|
Further
work
|
·
The nature and
scale of planned further work (eg tests for lateral extensions or
depth extensions or large-scale step-out
drilling).
·
Diagrams clearly
highlighting the areas of possible extensions, including the main
geological interpretations and future drilling areas, provided this
information is not commercially sensitive.
|
·
Re-analysis of historical drill samples is
underway. Samples shall be analysed for REE and Uranium to confirm
historical results.
·
Previous TEM surveys are being re-interpreted to
improve Palaeochannel interpretation and to identify potential
pathways of fluid oxidation.
·
Ground water sampling planned.
·
Digitization of downhole wireline logs to
re-interpret mineralized roll-fronts.
|
Appendix 2. Collar Locations
|
Drillhole
|
Drillhole No
|
Operator
|
Drilling Method
|
Depth (m)
|
Dip
|
Easting
|
Northing
|
Drill Date
|
|
IR 3
|
132151
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
98
|
-90
|
485,399
|
6,416,481
|
4/04/1979
|
|
IR 51
|
132200
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
54
|
-90
|
475,029
|
6,431,423
|
3/05/1979
|
|
IR 66
|
132215
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
90
|
-90
|
462,629
|
6,445,598
|
10/05/1979
|
|
IR 291
|
134660
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
58
|
-90
|
507,819
|
6,347,373
|
9/04/1980
|
|
IR 292
|
134661
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
54
|
-90
|
505,779
|
6,347,533
|
9/04/1980
|
|
IR 293
|
134662
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
54
|
-90
|
503,909
|
6,347,753
|
10/04/1980
|
|
IR 294
|
134638
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Air
|
48
|
-90
|
503,929
|
6,349,573
|
9/04/1980
|
|
IR 295
|
134639
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Air
|
42
|
-90
|
504,729
|
6,351,273
|
10/04/1980
|
|
IR 494
|
132355
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
84
|
-90
|
412,686
|
6,430,296
|
10/06/1980
|
|
IR 495
|
132356
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
72
|
-90
|
411,833
|
6,431,854
|
10/06/1980
|
|
IR 1052
|
133529
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
132
|
-90
|
456,077
|
6,452,097
|
4/04/1981
|
|
IR 1055
|
133532
|
Carpentaria Exploration Co Pty
Ltd.
|
Rotary - Mud
|
96
|
-90
|
458,698
|
6,451,203
|
6/04/1981
|
|
SBU05008
|
219902
|
Toro Energy Ltd.
|
Aircore
|
82
|
-90
|
492,699
|
6,347,245
|
14/05/2006
|
|
RD 1
|
138344
|
Esso Exploration
|
Rotary - Mud
|
66.5
|
-90
|
489,704
|
6,336,073
|
30/11/1981
|