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e04a7b9d649867fbed96f5.pdf
20 October 2015
ASSAY RESULTS VDD 193W RETURNS STRONG COPPER ASSAYS
Highlights
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Assay results from wedge drill hole VDD 193W at D Zone have been received and include:
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39.6m at 0.8% Cu, including,
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23.2m at 0.9% Cu, including,
4.3m at 2.4% Cu
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The intersection is outside of the area of the current Mineral Resource estimate.
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Drill hole VDD 194 has been completed and has intersected a narrow interval of copper mineralised ironstone.
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A geometry of multiple, steeply southwest plunging shoots, up to 100m wide, has emerged that will guide ongoing drilling.
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An updated Mineral Resource Estimate will be released in November 2015, followed by an updated Scoping Study on a copper only development scenario.
Avalon Minerals Limited ('Avalon' or 'Company') (ASX: AVI) is pleased to announce further results from diamond drilling at Viscaria D Zone.
Drill hole VDD 193W was a wedge hole drilled from VDD 193 and aimed at testing the up-section position of the very strong copper intersection in VDD 193 (26.7m @ 2.6% Cu from 564.6m, ASX announcement 21 September 2015). Drilling of the wedge hole was technically difficult and it deviated to the north into a position away from the target zone. Nevertheless, it intersected a well mineralised zone as outlined in Table 1 below.
VDD 193W was wedged from a point located 220.3m down hole in VDD 193, and intersected a point approximately 45m north and above the VDD 193 intersection (Figures 1, 2 and 3).
Drill hole VDD 194, located 100m south of VDD 193 and at the same level (RL), has intersected a narrow copper mineralised ironstone interval and may define the southern margin of the steep shoot intersected in VDD 193 (Figures 1, 2).
20 October 2015
Avalon's Managing Director, Mr Malcolm Norris said, 'Ongoing drilling is continuing to deliver significant copper intersections, and defining the geometry of the deposit, which will provide the basis for ongoing drill targeting. These assay results are outside of the area of the current Mineral Resource estimate and will be captured in our updated Mineral Resource estimate in November.'
VDD 193W
From (m)
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To (m)
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Interval (m)
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Cu %
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Mineralisation area
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248
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248.45
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0.45
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1.92
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Eastern
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294.45
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298
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3.55
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0.86
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Eastern
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318
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357.55
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39.55
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0.81
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Main Lode
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including
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318
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326.6
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8.6
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1.27
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Main Lode
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320
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324.5
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4.5
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2.00
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Main Lode
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334.35
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357.55
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23.2
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0.88
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Main Lode
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including
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347.8
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357.55
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9.75
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1.48
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Main Lode
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353.3
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357.55
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4.25
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2.40
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Main Lode
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376
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382.8
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6.8
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0.95
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Main Lode
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The intervals presented are down hole widths, and true widths are expected to be approximately 60% of the downhole width.
A bulked interval from 318m to 382.8m of 64.8m averages 0.61% Cu.
Table 1: Summary assay results from VDD 193W
Drillhole No.
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Easting (mE)
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Northing (mN)
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RL
(m)
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Dip (degrees)
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Azimuth (degrees)
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EOH (m)
comments
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VDD 193W
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1,680,816
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7,537,131
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209
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-63
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313
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400m; Wedge off 193 at 220.3m
downhole
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VDD 194
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1,681,051
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7,537,111
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539
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-65
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311
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632.3
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VDD 195
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1,680,952
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7,536,983
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530
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-65
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311
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Estimated 780m
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Table 2: Drillhole details.
Precious metal assays have also been received for VDD 193. Gold assays were anomalous but not of a grade that is considered significant. Silver assays ranged from 0 to 9.7g/t over intervals of 0.25m to 1.0m. The average silver grade over the main copper mineralised interval was 1.3g/t over 30m, and there was a strong positive correlation between Ag and Cu.
Figure 1: D Zone long section showing Cu grade (%) x interpreted ore zone true thickness contours for D Zone ironstone hosted copper mineralisation at the Viscaria Copper Project. The interpretation illustrates southwest plunging oreshoots, with VDD 195 positioned to test the down plunge extension of one such shoot. Drill hole VDD 193W is highlighted as are other recent drill holes VDD 193 and 194. VDD 195 is currently in progress.
Figure 2: D Zone long section showing Cu grade (%) x interpreted ore zone true thickness imaged to highlight orientations of thicker and higher grade zones for D Zone ironstone hosted copper mineralisation. The Cu-grade(%) x interpreted ore zone true thickness values were contoured using a search ellipse that preferentially seeks to define steep southwest-dipping trends, thus generating a more robust view of the Cu-mineralised zones on long-section. Target zones for follow up drilling are shown as down plunge extensions of interpreted higher grade shoots.
Figure 3: D Zone cross section showing VDD 193W intersection. The VDD 193W intersection is off the section and approximately 45m from VDD 193.
Figure 4: Location of D Zone at the Viscaria Copper Project
Competent Persons Statement
The information in this report that relates to exploration results is based upon information reviewed by Mr Malcolm Norris who is a Fellow of the Australasian Institute of Mining and Metallurgy. Mr Norris is a full- time employee of Avalon Minerals Ltd and has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify 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 Norris consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Mr Malcolm Norris Managing Director Avalon Minerals Limited Tel: 07 3368 9888
Email: [email protected]
APPENDIX 1
The following Table and Sections are provided to ensure compliance with the JORC Code (2012 Edition)
TABLE 1 - Section 1: Sampling Techniques and Data
Criteria
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JORC Code explanation
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Commentary
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Sampling techniques
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Nature and quality of sampling (e.g. 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.
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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 (e.g. '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 (e.g. submarine nodules) may warrant disclosure of detailed information.
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Drilling techniques
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Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (e.g. 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).
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Drill sample recovery
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Criteria
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JORC Code explanation
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Commentary
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Logging
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Drill samples are being logged for lithology, weathering, structure (diamond core), mineralogy, mineralisation, colour and other features. Logging and sampling is carried out according to Avalon's internal protocols and QAQC procedures which comply with industry standards.
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Drill samples are logged for lithology, weathering, structure (diamond core), mineralogy, mineralisation, colour and other features. Core is photographed both wet and dry.
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Sub-sampling techniques and sample preparation
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If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry.
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Avalon samples are sent to the ALS Sample Preparation Facility in Pitea, Sweden for sample preparation. The standard ALS sample preparation for drilling samples is: drying the sample, crushing to size fraction 75% >2mm and split the sample to 250g portion by riffle or Boyd rotary splitter. The 250g sample is then pulverised to 85% passing 75 microns and then split into two 50g pulp samples. Then one of the pulp samples is sent to the Vancouver ALS laboratory for base metal analysis.
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The sample preparation is carried out according to industry standard practices.
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Avalon uses an industry standard QAQC programme involving Certified Reference Materials 'standards' (with Cu grades ranging from near cut-off, average resource grades and very high grades) and blank samples, which are introduced in the assay batches.
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Standards, blanks and duplicates are submitted at a rate of 1 in 20 samples or one standard, blank and duplicate per hole if the hole has less than 20 samples.
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The check assay results are reported along with the sample assay values in the preliminary and final analysis reports.
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For diamond core, the routine sample procedure is to always take the half/quarter core to the right of the orientation line (looking down hole) or the cut line (in cases where the orientation line was not reliable).
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Once assay results are received the results from duplicate samples are compared with the corresponding routine sample to ascertain whether the sampling is representative.
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Criteria
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JORC Code explanation
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Commentary
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Quality of assay data and laboratory tests
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Avalon uses assay method ME-ICP81, which involves sample decomposition by sodium peroxide fusion. They are then analysed by ICP-AES. The lower detection limit for copper using ME-ICP81 is 0.005% and the upper detection limit is 50%.
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This analysis technique is considered suitable for this style of mineralisation.
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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.
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Nature of quality control 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.
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The values of the standards range from low to high grade and are considered appropriate to monitor performance of values near cut-off and near the mean grade of the deposit.
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The check sampling results are monitored and performance issues are communicated to the laboratory if necessary.
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Verification of sampling and assaying
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Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.
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Location of data points
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Surface collar co-ordinates are surveyed by Differential GPS in Swedish co- ordinate system RT90 gon vast (west) 2.5 by qualified local contract surveyors to a high level of accuracy (1-3cm).
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It has been standard procedure to use the same contract surveyors to survey collar points since Avalon's involvement, so there is high confidence that all the surface drill holes at D Zone are supported by accurate location data.
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High quality down-hole dip and azimuth survey data are recorded.
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Parameter
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Value
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Reference Ellipsoid
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Bessel 1841
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Semi Major Axis
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6377397.155 m
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Inverse Flattening (1/f)
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299.1528128
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Type of Projection
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Gauss-Krüger (Transverse Mercator)
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Criteria
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JORC Code explanation
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Commentary
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Central Meridian:
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E15°48'29.8'
(2.5 gon West of the Stockholm Observatory)
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Latitude of Origin
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0°
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Scale on Central Meridian
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1
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False Northing
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0 m
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False Easting
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1500000 m
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The topographic surface was taken from LIDAR data (airborne laser scanning) that was purchased from Lantmäteriet (the Swedish mapping, cadastral and land registration authority). Data point resolution is 0.5 per metre square and is specified as accurate to 20cm in elevation on distinct surfaces and 60cm in planimetry. The level of accuracy of the LIDAR topographic surface was considered adequate for the purposes of resource estimation. The LIDAR topographic surface has also been verified by the many Differential GPS collar survey co-ordinates.
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Data spacing and distribution
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The drilling was from a wedge hole from VDD 193 and intersected a zone approximately 45m from VDD 193. Data spacing is considered sufficient to establish interpreted continuity between drill holes.
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Diamond drill sampling was generally taken over 1 meter intervals except when adjusted to geological boundaries.
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Orientation of data in relation to geological structure
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Criteria
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JORC Code explanation
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Commentary
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Sample security
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Avalon sampling procedures indicate individual samples were given due attention.
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ALS is an internationally accredited laboratory that has all its internal procedures heavily scrutinised in order to maintain their accreditation.
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Audits or reviews
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Avalon's sampling techniques and data have been audited multiple times by independent mining consultants during the process of reporting a JORC Compliant Mineral Resource on the various mineral deposits that make up the Viscaria Copper Project (A Zone, B Zone, and D Zone). These audits have always resulted in the conclusion that Avalon's sampling techniques and data are industry standard and suitable for the purposes of reporting a JORC Compliant Mineral Resource.
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All historical data has been validated and migrated into an access database. Checking was carried out at the data entry stage for interval error and any significant data issues were resolved. Procedures exist to standardise data entry and senior geological staff from Avalon regularly vetted sampling procedures.
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TABLE 1 - Section 2: Exploration Results
Criteria
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JORC Code explanation
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Commentary
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Mineral tenement and land tenure status
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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.
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Exploration done by other parties
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