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ASX Announcement – 25th July 2014 ASX Code: BOA Petrology Results Following the recent drilling of 141 aircore holes for 4031 metres at Boadicea Resources Symons Hill Project a number of samples were submitted to Dr Tony Crawford of A & A Crawford Geological Research Consultants for petrological examination. The samples comprised rock chips of variably fresh bottom of hole samples collected from a range of interpreted rock types recorded and logged from the drilling. The work was completed to confirm the initial interpretation of the drilling of a complex sequence of ultramafic and sedimentary rocks and a series of intermediate to mafic granulites. The drilling had outlined an anomalous trend of nickel, copper, cobalt and chromium corresponding to deeply weathered ultramafic and mafic rocks located along strike from Nova with a number of holes which finished in iron rich oxidised rocks containing higher values towards the end of the holes. The petrology has confirmed lithologies of ultramafic rocks (fine grained olivine bearing pyroxenites), low granulite grade mafic rocks (gabbronorite) and intermediate to felsic amphibolite to granulite facies rocks interpreted to be derived from metasedimentary rocks. (See Figures 1 and 2) Dr Crawford concludes that some of the mafic and ultramafic rocks probably derive from substantial layered intrusions through the metasedimentary rock package and the challenge is to now locate sulphide accumulations within this prospective package of rocks. The presence of olivine‐bearing rocks is considered significant because major mafic hosted magmatic Ni‐Cu deposits occur in cumulate ultramafic rocks that contain olivine as a key phase. Ongoing exploration is planned to follow up and develop additional sulphide nickel targets in this prospective package of rocks.
For further information please contact Clarke Dudley Managing Director Tel: (03) 9569 3467
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Figure 1: Thin Section of Drill Hole BAC009
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Figure 2: Thin Section of Drill Hole BAC067 and BAC068
Competent Person: The comments regarding the geology, prospectivity and exploration results, in this report, have been made and/or reviewed by Simon Coxhell (Member of Australasian Institute of Mining and Metallurgy), who is a consultant for Boadicea Resources Ltd. Mr Coxhell has sufficient experience, relevant to the style of mineralization and type of deposit under consideration and to the activity which he has undertaken to qualify as Competent Persons as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code) and consents to the
inclusion in this report of the matters reviewed by him in the form and context in which they appear.
Boadicea Resources Ltd. ACN 149 582 687 Suite 2, 25 Koornang Rd. Carnegie, Victoria
3163 Australia.
Phone: +61 3 95693467 Fax: +61 3 95723762 E: [email protected]
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JORC2012disclosuresonsamplingtechniquesanddata
Section 1: Sampling Techniques and Data
Criteria JORC CodeExplanation Commentar
ySampling Technique
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 downhole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling
Exploration at Symons Hill (E28/1932) has been via aircore drilling techniques. A total of 141 aircore holes have been drilled to an average depth of 28 metres.
Rock Chip Samples from the bottom of drillholes were collected and submitted for this sections and descriptions
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.
The drill hole collar locations are determined by handheld GPS survey with an accuracy of +/- 5 metres.
Samples were logged for lithology, alteration, weathering and mineralization.
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.
Aircore drilling produced individual 1 metre samples which were then systematically sampled to produce 4 metre composite samples with approximately 2 kilograms of samples collected per composite. Based on portable XRF readings anomalous samples were submitted to Genalysis/Interdek for analysis. A 30 gram sample was pulverized and analysed via AAS and ICP. Samples were analysed for gold, platinum, palladium, nickel, copper, cobalt and chromium.
Drilling 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).
Aircore drilling with a nominal 75 mm sampling bit.
Drill Sample Recovery
Method of recording and assessing core and chip sample recoveries and results assessed.
The contractor and onsite geologist monitored recoveries, via visual examination of sample pile.
Measures taken to maximise sample recovery and ensure representative nature of the samples.
In general recoveries are good and there are no significant sample recovery problems. Individual sample piles were sampled via a representative “slice” being collected.
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.
Insufficient drilling and geochemical data is available at the present stage to evaluate potential sample bias.
Logging Whether core and chip samples have been geologically and geotechnical logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.
Logging is conducted on all drill holes. Information on lithology, mineralisation and oxidation state is collected and transferred to an electronic database. This is early stage exploration and too early to consider Mineral Resource estimation, mining studies and metallurgicalstudies.
Whether logging is qualitative or quantitative in nature. Core (or costean/Trench, channel, etc) photography.
Logging of aircore chips is qualitative.
The total length and percentage of the relevant intersections logged.
All drillholes are being logged in full to end of hole.
Sub-Sampling Technique and Sample Preparation
If core, whether cut or sawn and whether quarter, half or all core taken.
A subsample from each sample metre was collected, comprising approximately 15% of each individual metre.
If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.
All samples were dry and sampled with a sample scoop taking care to ensure a representative slice (1/8 cone and quartered) was collected.
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For all sample types, the nature, quality and appropriateness of the sample preparation technique.
The sample preparation for all samples follows industry best practice and was undertaken by Genalysis / Interdek Perth, where they were crushed, dried and pulverised to produce a sub sample for analysis. Sample preparation involving oven drying, coarse crushing, followed bytotal pulverisation LM2 grinding mills to a grind size of 85% passing 75 microns.
Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.
QC for sub sampling follows Genalysis/Interdek procedures.
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.
Field duplicates have been taken at ratio of 1 every 30 samples..
Whether sample sizes are appropriate to the grain size of the material being sampled.
The sample sizes are considered to be appropriate to correctly represent the style of mineralisation, the thickness and consistency of the intersections.
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.
The laboratory used an aqua regia digest with an ICP/OES and AAS finish, suitable for reconnaissance. The method approaches total dissolution of most minerals, except for the chromium, which is considered a partial digestion. .
Sample preparation checks for fineness were carried out by the laboratory as part of their internal procedures to ensure the grind size of 85% passing 75 micron was being attained.
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.
A portable Niton (XL2) XRF was used for the onsite analysis. Calibration standards supplied by the company were used at the start of the day to ensure reliability. Readings were taken for 60 seconds persample. Results were downloaded and inported into an electroinc database where they were merged with sample numbers/Hole No, from, to.
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.
Laboratory QA/QC involves the use of internal lab standards using certified reference material, blanks, splits and duplicates as part of the in house laboratory procedures.
Certified reference materials, having a good range of values, were inserted by Actlabs blindly and randomly. Results highlight that sample assay values are accurate. Correlation analysis between the XRF values and the laboratory show a correlation coefficient of >80% for thecobalt, copper and nickel.
Repeat or duplicate analysis for samples shows that the precision of samples is within acceptable limits.
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Verification of Sampling and Assaying
The verification of significant intersections by either independent or alternative company personnel.
The Company’s Geologist has visually verified anomalous intersectionswith rock chips collected and compared the portable XRF results with the Interdek laboratory results.
The use of twinned holes.
No twin holes have been drilled.
The verification of significant intersections by either independent or alternative company personnel.
Primary data was collected using a set of company standard Excel templates and re-entered into laptop computers.
Discuss any adjustment to assay data No adjustments or calibrations were made to any assay data used in
this report.
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.
All drillholes have been located by GPS in UTM grid WGS84 Zone 51 (S).
No downhole surveys were completed.
Specification of the grid system used
The grid system is WGS 84 Z 51(S).
Quality and adequacy of topographic control
Topographic control is based on DTM data collected in previous geophysical aerial surveys.
Data Spacing and Distribution
Data spacing for reporting ofExploration Results
Drilling is conducted on a hole by hole basis in areas of outcrop, geochemical anomalism or geophysical targets. A nominal grid spacingof 40-50 metres along sections lines 1.5 kilometres apart.
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.
Not relevant, no resource estimate has been completed.
Whether sample compositing has been applied
Samples have been composited from the original one metre sample lengths to 4 metre downhole composites.
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.
At this early stage and nature of drilling, the orientation is determined to provide initial geological control on key litholgies and potential mineralisation.
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.
No orientation based sampling bias has been identified in the data at this point.
Sample Security
The measures taken to ensure sample security
Chain of custody is managed by the Company.
Samples are transported to the laboratory by Company personel.
Whilst in storage, they are kept in a locked yard. Tracking sheets are used track the progress of batches of samples
Audits or reviews
The results of any audits or reviews of sampling techniques and data.
No review of the data management system has been carried out.