TIDMAURA
RNS Number : 0005J
Aura Energy Limited
14 August 2019
14 August 2019
Häggån Vanadium DRILLING RESULTS
CONFIRM HIGH GRADE ZONE
DRILLING INTERCEPTED GRADES IN EXCESS OF 0.6% V(2) O(5)
Scoping study continues to progress well
battery initiative and separate listing
options remain active
Aura Energy Limited (AEE; ASX, AURA; AIM) is pleased to advise
that drill assay results on the Häggån Vanadium Project have
confirmed the high grade and continuous nature of the Häggån
vanadium mineralistion.
To enable finalisation of the Häggån Vanadium Project Scoping
Study infill drilling was carried out to achieve a Measured and
Indicated Resource for Häggån.
The drilling not only confirmed the High Grade Zone but also
intersected several areas of mineralisation with grades in excess
of 0.6% V(2) O(5) . This very positive and unexpected outcome
provides good potential for higher grade areas to be mined within
the existing zone or in other zones within the broad Häggån
Resource.
The most significant results[1] were as follows;
-- 103 metres at 0.41 % V2O5 in hole 19DDHG085
-- 101 metres at 0.43 % V2O5 in hole 19DDHG089, including 68 metres at 0.5% V2O5
-- 93 metres at 0.41 % V2O5 in hole 19DDHG084
-- 78 metres at 0.43 % V2O5 in hole 19DDHG083
-- 71 metres at 0.43 % V2O5 in hole 19DDHG080
-- 54 metres at 0.45 % V2O5 in hole 19DDHG090
Drilling consisted of 2930 metres of diamond drilling in 22
drillholes to test the top 140 metres of vanadium mineralisation.
The drilling was conducted during the Swedish winter months.
Following corelogging, density determination, cutting and sampling,
assay results have now been received.
The assay data is currently with Aura's resource consultants who
are in the process of completing a re-estimation of the Häggån
poly-metallic resource.
http://www.rns-pdf.londonstockexchange.com/rns/0005J_1-2019-8-14.pdf
Figure 1: Location of Häggån Project
Peter Reeve, Aura's Executive Chairman, commented "This drilling
has confirmed our expectations in this high grade zone. We are very
pleased with the thickness and continuity of these high vanadium
grade intersections and the positive implications this has for the
operating, and particularly mining, phase of the the Häggån
Vanadium Project".
"The current High Grade Zone remains open for expansion and
there is also the potential for repeat zones of a similar grade",
he continued.
The recent drilling program was designed to upgrade a sufficient
portion of the resource to Measured and Indicated status in order
to comply with JORC and ASX guidelines.
Importantly this drilling has not defined the limits of the
higher grade zone either laterally or at depth providing potential
for the High Grade Vanadium Zone to be extended.
Depth to the top of the mineralisation in the 28 drillholes in
this high grade zone averaged 27 metres which confirms the low
stripping ratio of the future/planned mining operation.
The area covered by the recent drilling in this high grade zone
covers only a small portion of the giant Häggån Resource (See
Figure 2) leaving potential for repeats of the current zone to be
discovered within proximity of the current resource.
All major technical work for the Häggån Scoping Study has now
been completed as per schedule with the final report being
assembled currently. The Haggan Scoping Study will be released in
September, coinciding with the opening of business and close of the
holiday period in Europe and Sweden.
Aura continues to review the potential for an IPO of the Häggån
Vanadium Project and this activity remains current however somewhat
dependent on the current turbulent market conditions. Similarly,
the initiative to incorporate battery manufacturing remains active
and discussions remain ongoing.
http://www.rns-pdf.londonstockexchange.com/rns/0005J_1-2019-8-14.pdf
Figure 2: Aura Tenements and location of the Northwest
High-grade Zone in the Häggån resource
Aura's Häggån deposit currently has an Inferred Resource of 800
million lbs at 0.42% V2O5[2] (at a 0.4% lower cutoff - refer Table
1). Refer Aura ASX announcement of 23 May 2018 : New Resource
Estimate - Haggan Battery Metals project.
Table 1: Häggån Inferred Resource
V(2) Tonnes V(2) V(2) Ni (ppm) Zn (ppm) Mo (ppm) U(3)
O(5) (Million) O(5) O(5) O(8)
Cut-off % Billion (ppm)
% lbs
0.40% 90 0.42% 0.8 400 550 220 160
----------- ------ --------- --------- --------- --------- -------
0.30% 900 0.35% 7.0 370 500 230 170
----------- ------ --------- --------- --------- --------- -------
0.20% 1,950 0.30% 12.8 330 440 210 160
----------- ------ --------- --------- --------- --------- -------
0.10% 2,600 0.26% 15.1 300 400 200 150
----------- ------ --------- --------- --------- --------- -------
The recent infill drill pattern shown in Figure 3, illustrates
that the majority of the high grade vanadium resource is in area
already cleared.
http://www.rns-pdf.londonstockexchange.com/rns/0005J_1-2019-8-14.pdf
Figure 3: Häggån Northwest High Grade Zone - drillhole
layout
A number of intersections achieved well above the average
resource grade with a number of these above 0.6% V(2) O(5) as shown
below in Figure 4 and Table 2.
http://www.rns-pdf.londonstockexchange.com/rns/0005J_1-2019-8-14.pdf
Figure 4: Häggån mineralisation. The top 3 rows of core (to 38
metres) average 0.61% V(2) O(5)
Table 2: Drillhole location details
Drillhole From To Thickness V2O5 grade Hole collar location RL
-----------------------
(m) (m) (m) % Easting* Northing* (m)
--------- ------------ ---------- ----------- --------- ------------ ------
19DDHG085 34.5 137.3 103 0.41% 462,801 6,990,400 361
--------- ------------ ---------- ----------- --------- ------------ ------
19DDHG089 20.2 121.5 101 0.43% 462,700 6,990,298 362
--------- ------------ ---------- ----------- --------- ------------ ------
incl 20.2 88.0 68 0.50% " " "
--------- ------------ ---------- ----------- --------- ------------ ------
incl 24.0 26.0 2 0.64% " " "
--------- ------------ ---------- ----------- --------- ------------ ------
19DDHG084 19.0 112.0 93 0.41% 462,716 6,990,400 359
--------- ------------ ---------- ----------- --------- ------------ ------
incl 22.0 24.0 2 0.65% " " "
--------- ------------ ---------- ----------- --------- ------------ ------
19DDHG083 4.3 82.0 78 0.43% 462,608 6,990,494 359
--------- ------------ ---------- ----------- --------- ------------ ------
incl 6.0 8.0 2 0.61% " " "
--------- ------------ ---------- ----------- --------- ------------ ------
19DDHG080 27.1 98.0 71 0.43% 462,703 6,990,501 358
--------- ------------ ---------- ----------- --------- ------------ ------
19DDHG090 8.2 62.0 54 0.45% 462,597 6,990,313 362
--------- ------------ ---------- ----------- --------- ------------ ------
17DDHG069 60.0 62.0 2 0.60% 462,294 6,990,391 365
--------- ------------ ---------- ----------- --------- ------------ ------
19DDHG078 12.0 14.0 2 0.61% 462,611 6,990,387 361
--------- ------------ ---------- ----------- --------- ------------ ------
19DDHG091 34.0 38.0 4 0.61% 462,507 6,990,318 364
--------- ------------ ---------- ----------- --------- ------------ ------
" 42.0 44.0 2 0.60% " " "
--------- ------------ ---------- ----------- --------- ------------ ------
*Coordinate system is SWEREF99 TM, the standard Swedish
system
All holes collared vertical
http://www.rns-pdf.londonstockexchange.com/rns/0005J_1-2019-8-14.pdf
Figure 5: Häggån Vanadium Resource block plan at 50 metres
depth
http://www.rns-pdf.londonstockexchange.com/rns/0005J_1-2019-8-14.pdf
Figure 6: Häggån Vanadium Resource cross section
http://www.rns-pdf.londonstockexchange.com/rns/0005J_1-2019-8-14.pdf
Plate 1: Diamond drilling in -20 C temperature - Häggån winter
drilling
For further information please contact:
Mr Peter Reeve
Executive Chairman
Phone +61 (0)3 9516 6500
info@auraenergy.com.au
Competent Persons
The Competent Person for drill hole data, cut-off grade and
prospects for eventual economic extraction is Mr Neil Clifford. The
information in the report to which this statement is attached that
relates to drill hole data, cut-off grade and prospects for
eventual economic extraction is based on information compiled by Mr
Neil Clifford. Mr Clifford has sufficient experience that is
relevant to the style of mineralisation and type of deposit under
consideration and to the activity which he is undertaking. This
qualifies Mr Clifford as a Competent Person as defined in the 2012
edition of the 'Australasian Code for Reporting of Exploration
Results, Mineral Resources and Ore Reserves'. Mr Clifford is an
independent consultant to Aura Energy. Mr Clifford is a Member of
the Australasian Institute of Mining and Metallurgy (AusIMM). Mr
Clifford consents to the inclusion in the report of the matters
based on his information in the form and context in which it
appears.
Aura Energy Limited Telephone: +61 (3) 9516 6500
Peter Reeve (Executive Chairman) info@auraenergy.com.au
WH Ireland Limited Telephone: +44 (0) 207 220
(Nominated Adviser and Joint Broker) 1666
Adrian Hadden
James Sinclair-Ford
SP Angel Corporate Finance LLP
(Joint Broker) Telephone: +44 (0) 203 470
Ewan Leggat 0470
Jamie Spotswood
Yellow Jersey PR Limited Telephone: +44 (0) 7769 325
Felicity Winkles 254
Joe Burgess
JORC Code (2012 Edition) - Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
Sampling techniques Nature and quality of The 2018 Häggån resource
sampling (e.g. cut estimate was based on several drilling
channels, random chips, or campaigns:
specific specialised * 2008: 3453m in 17 diamond drillholes
industry
standard measurement tools
appropriate to the * 2010: 5091m in 25 "
minerals under
investigation, such as
down hole * 2011: 2279m in 10 "
gamma sondes, or handheld
XRF instruments, etc).
These examples should not * 2012: 2226m in 14 "
be taken as limiting
the broad meaning of
sampling. * 2015: 149m in 1 "
Include reference to
measures taken to ensure
sample representivity and * 2017: 374m in 2 "
the appropriate
calibration
of any measurement tools * 2018/19: 2929m in 22 "
or systems used.
Aspects of the
determination of
mineralisation that are All drill samples were obtained by diamond
Material to the Public drilling. Drillcore samples were provided
Report. to ALS
In cases where 'industry Laboratories core sawing and for sample
standard' work has been preparation and analysis.
done this would be The Alum Shale, host to the mineralisation
relatively simple (e.g. has a relatively consistent content of the
'reverse circulation target
drilling was used to metals.
obtain 1 m samples from Sample interval in most cases was 2m
which 3 kg was pulverised except where there was a lithological
to produce a 30 g charge contact. Each lithology
for fire assay'). In other was sampled separately. Sample was dried
cases more explanation may at 105degC, then crushed to 70% -6 mm
be required, using ALS-Chemex
such as where there is method Prep22. 100 g was split using a
coarse gold that has riffle splitter by method SPL21, followed
inherent sampling by fine pulverizing
problems. Unusual to 85% less than 75 micron by method
commodities PUL31.
or mineralisation types 10-20 grams of pulp subsample were
(e.g. submarine nodules) dispatched to ALS in Ireland for ICP
may warrant disclosure of multi-element analysis.
detailed information.
Drilling techniques Drill type (e.g. core, Diamond drill core; standard tube; all but one hole were
reverse circulation, drilled vertically
open-hole hammer, rotary All holes were drilled with BQTQ (core diameter 47mm)
air blast, auger, Bangka, All holes were surveyed downhole for direction at usually
sonic, etc) and details 3m intervals. The holes show minimal
(e.g. core diameter, downhole deviation , with a maximum location error at the
triple or standard tube, bottom of a hole of c. 6m.
depth of diamond tails,
face-sampling bit or other
type, whether core is
oriented and if so, by
what method, etc).
Drill sample recovery Method of recording and Any core loss is marked by the drillers and then recorded
assessing core and chip in the log by the geologist.
sample recoveries and The Alum Shale, host to the mineralisation, consistently
results assessed. has recoveries of +95%. In addition
Measures taken to maximise the material has relatively consistent values of the target
sample recovery and ensure metals.
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.
Logging Whether core and chip Core was aligned and checked for continuity and marked out
samples have been in one meter intervals. It was
geologically and checked for drill bit marking as bit matrices are known to
geotechnically logged to a contain molybdenum. Comments were
level recorded in the database regarding the presence of bit
of detail to support marks.
appropriate Mineral Core was geologically logged recording lithology,
Resource estimation, oxidation, mineralogy (where possible),
mining studies and texture & structure and scanned with a handheld
metallurgical scintillometer. Down hole depth intervals
studies. were recorded with an accuracy of 20 cm.
Whether logging is All core was photographed.
qualitative or All core was geologically logged.
quantitative in nature.
Core (or costean, channel,
etc)
photography.
The total length and
percentage of the relevant
intersections logged.
Sub-sampling techniques If core, whether cut or Core was sawn in half using a core saw.
and sample preparation sawn and whether quarter, All drill holes were diamond drill holes.
half or all core taken. * Half core was taken using a sample interval of 2 m.
If non-core, whether Sample was dried at 105degC, then crushed to 70% -2
riffled, tube sampled, mm using ALS method Prep22. 100 g was split using a
rotary split, etc and riffle splitter, followed by fine pulverizing to 85%
whether sampled wet or less than 75 micron by method PUL31.
dry.
For all sample types, the
nature, quality and * 10-20 grams of pulp subsample were dispatched to ALS
appropriateness of the in Ireland for ICP analysis.
sample preparation
technique.
Quality control procedures * Precision of sampling and analysing pulps is
adopted for all considered to be within +/- 5% and acceptable for use
sub-sampling stages to in resource estimation at any confidence level.
maximise representivity
of samples.
Measures taken to ensure The grain size of the Alum Shale is extremely fine, less
that the sampling is than 10 microns, and commonly around
representative of the 1 micron. The uranium mineralisation is finely disseminated
in-situ material throughout the shale, again at
collected, a micron scale or less. Consequently the mineralisation and
including for instance its host rock are very well represented
results for field in the 2m samples of core collected (average sample 3.3
duplicate/second-half kg). Because of the extremely fine
sampling. nature of the mineralisation each drill core sample may
Whether sample sizes are contain many millions of individual
appropriate to the grain grains of uranium minerals. Therefore sample size is
size of the material being appropriate.
sampled.
Quality of assay data and The nature, quality and Because of the very fine nature of the host Alum Shale and
laboratory tests appropriateness of the the mineralisation minerals, it
assaying and laboratory is considered that the laboratory procedures are
procedures used and appropriate for this mineralisation. The
whether the technique is ICP method after 4 acid digestion is considered to give
considered partial or near total assay for all resource
total. elements.
For geophysical tools, ALS also assayed 2 standards, 1 duplicate and 1 blank for
spectrometers, handheld each batch of 40 samples as part
XRF instruments, etc, the of their internal QAQC. QAQC data were inspected by Aura
parameters used in before data were accepted and entered
determining the analysis into the Aura database.
including instrument make In addition Aura inserted 1 blank, 1 certified reference
and model, reading times, sample and 1 duplicate in every 25
calibrations samples for QAQC
factors applied and their Review of these QAQC results indicates acceptable levels of
derivation, etc. accuracy and precision have been
Nature of quality control established.
procedures adopted (e.g.
standards, blanks,
duplicates, external
laboratory checks) and
whether acceptable levels
of accuracy (i.e. lack of
bias) and precision
have been established.
Verification of sampling The verification of No twin holes were drilled.
and assaying significant intersections The following information primary data is recorded: Collar,
by either independent or alteration, assays, drilling type,
alternative company Geology, Geotech, Magnetic susceptibility, mineralisation,
personnel. radiometrics, samples, scintillometer,
The use of twinned holes. spectrometer, structure, veining, surface samples, batch
Documentation of primary details.
data, data entry All logging was done by the geologist digitally in an Excel
procedures, data spreadsheet. Photos of the core
verification, data storage are taken after the hole was logged. Data is kept on site
(physical on an external hard drive as well
and electronic) protocols. as being sent by email to Aura Energy in Australia where it
Discuss any adjustment to was uploaded into the independently
assay data. managed EarthSQL data base.
No data enters the database without verification by the
Database Manager.
Database managed by external contractor EarthSQL.
In house copy and backup offsite.
No adjustment to assay data.
Location of data points Accuracy and quality of Drill hole collar locations have been surveyed by with an
surveys used to locate accuracy of 20 cm. Initial location
drill holes (collar and is taken during drilling with handheld GPS when the casing
down-hole surveys), has been put down.
trenches, mine workings All 2018/19 holes were recorded in grid system SWEREF 99
and other locations used TM, the standard Swedish projection.
in Mineral Resource Holes were vertical in all cases except Hole 39. The
estimation. drilling contractor conducted down hole
Specification of the grid surveys for deviation using a Reflex Ex Trac survey device
system used. with a reading at 3m intervals.
Quality and adequacy of Downhole deviation was slight.
topographic control. The 2018/19 drillholes are located on an approximate 100 m
by 100 m grid with 2 holes placed
centrally within the the 100m squares; exact locations
depended partially on access.
Topography: RL was surveyed by DGPS with an accuracy of c.
20 cm.
Data spacing and Data spacing for reporting All data reported in this release is based on drilling as
distribution of Exploration Results. described.
Whether the data spacing The vast majority of sample intervals are 2 m in length,
and distribution is except where this interval contained
sufficient to establish a lithological contact, in which case each litholy was
the degree of geological sampled separately.
and grade continuity
appropriate for the
Mineral Resource and Ore
Reserve estimation
procedure(s)
and classifications
applied.
Whether sample compositing
has been applied.
Orientation of data in Whether the orientation of The mineralisation occurs in sub-horizontal sheets. It is
relation to geological sampling achieves unbiased considered that vertical drilling
structure sampling of possible is the most appropriate drilling orientation for this
structures and mineralisation.
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.
Sample security The measures taken to Drillcore was collected by Aura personnel from the
ensure sample security. drillsite and immediately taken and housed
in Aura's local locked core shed. After logging the core
was transported to ALS Laboratories
facility by either Aura or ALS personnel for core sawing,
sample preparation and assaying.
Audits or reviews The results of any audits The site was visited during the drilling program by
or reviews of sampling independent resource consultant Rupert
techniques and data. Osborn of H&S Consultants who reviewed and reported
favourably on procedures employed.
=========================== =========================== ============================================================
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this
section.)
Criteria JORC Code explanation Commentary
Mineral tenement and Type, reference name/number, location and ownership including The drilling reported
land tenure status agreements or material issues was located on
with third parties such as joint ventures, partnerships, exploration permit
overriding royalties, native title Häggån No. 1.
interests, historical sites, wilderness or national park and This permit
environmental settings. is held 100% in the name
The security of the tenure held at the time of reporting along of Vanadis Battery
with any known impediments Metals AB, a 100% owned
to obtaining a licence to operate in the area. subsidiary of Aura
Energy
Limited.
Only standard Swedish
government royalties
apply to these permits
No native title
interests are known to
exist in the two
permits.
A small, 2 hectare
Natura 2000 area occurs
against the eastern
boundary of
Häggån
No.1 permit; this area
is not in the vicinity
of the currently planned
mining area should
a project be initiated
at Häggån
The Häggån Nr
1 Exploration permit on
which the entire
resource is situated is
valid
until 28/8/2022.
Exploration done by Acknowledgment and appraisal of exploration by other parties. The area has not been
other parties explored prior to Aura
Energy.
Geology Deposit type, geological setting and style of mineralisation. Mineralisation at is
hosted by bedded black
shales of the Cambrian
to Ordovician Alum Shale
in tectonically or
otherwise
stratigraphically
thickened metal enriched
north-north-west
striking
elongated geological
domains. The mineralised
sequence outcrops in an
area in the east of
the tenement but
elsewhere underlies a
variably thin cover of
limestone. Minor
inter-beds
of carbonate enriched
shale or siltstone
occasionally occur
within the mineralised
sequence.
The mineralised unit
overlies a mixed
sequence of siltstone
and massive mineralized
back shale
above a granitoid
gneissic basement.
It is interpreted that
there are a series of
overthrusts which have
displaced and caused
thickening
of Alum Shale within the
resource area, and the
sub-horizontal thrust
sheets have influenced
the grade distribution
within the
Häggån
deposit.
Drill hole Information A summary of all information material to the understanding Drillhole collar
of the exploration results including locations are shown on
a tabulation of the following information for all Material Figure 2 of the ASX
drill holes: Announcement which this
* easting and northing of the drill hole collar table
accompanies. Drillhole
location information for
* elevation or RL (Reduced Level - elevation above sea intersections reported
level in metres) of the drill hole collar is presented in Table
2.
* dip and azimuth of the hole
* down hole length and interception depth
* 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.
Data aggregation methods In reporting Exploration Results, weighting averaging Grades reported are
techniques, maximum and/or minimum grade simple averages over the
truncations (e.g. cutting of high grades) and cut-off grades interval specified with
are usually Material and should no weighting or grade
be stated. truncation.
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.
Relationship between These relationships are particularly important in the reporting The mineralisation
mineralisation widths of Exploration Results. occurs in sub-horizontal
and intercept lengths If the geometry of the mineralisation with respect to the drill sheets. It is considered
hole angle is known, its nature that vertical drilling
should be reported. is the most appropriate
If it is not known and only the down hole lengths are reported, drilling orientation for
there should be a clear statement this mineralisation.
to this effect (e.g. 'down hole length, true width not known').
Diagrams Appropriate maps and sections (with scales) and tabulations of Appropriate maps and
intercepts should be included sections, and
for any significant discovery being reported These should tabulations of
include, but not be limited to a intersects, can be found
plan view of drill hole collar locations and appropriate on the Aura Energy
sectional views. website
(www.auraenergy.com.au)
or in releases to the
Australian Stock
Exchange (ASX),
available
on the ASX website.
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 misleading
reporting of Exploration Results.
Other substantive Other exploration data, if meaningful and material, should be This information has
exploration data reported including (but not been reported to the ASX
limited to): geological observations; geophysical survey over the 10 years since
results; geochemical survey results; the discovery drill
bulk samples - size and method of treatment; metallurgical test hole.
results; bulk density, groundwater,
geotechnical and rock characteristics; potential deleterious or
contaminating substances.
Further work The nature and scale of planned further work (e.g. tests for The results
lateral extensions or depth extensions of the
or large-scale step-out drilling). 2018/19
Diagrams clearly highlighting the areas of possible extensions, drilling
including the main geological campaign
interpretations and future drilling areas, provided this reported in
information is not commercially sensitive. the ASX
release to
which this
table
is attached
have been
passed to
independent
resource
consultants
who will
produce a
resource
estimate.
========================= ================================================================ =========================
[1] Refer Table 1 for further drillhole details
[2] Aura ASX announcement date 23 May 2018 : New Resource
Estimate - Haggan Battery Metals project
This information is provided by RNS, the news service of the
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END
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