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CARNAVALE RESOURCES LIMITED — Regulatory Filings 2021
Jul 28, 2021
64607_rns_2021-07-28_8d32d06b-a601-48d5-aa3d-36a6b667b0b6.pdf
Regulatory Filings
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ASX ANNOUNCEMENT 29 [th] July 2021
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CAV expands gold in soil anomalies at Ora Banda South Project.
Highlights
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- Soil sampling confirms historic gold anomalies and identified multiple additional +50ppb gold in soil anomalies coincident with arsenic in soil anomalies.
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- 15km long tenement package with anomalous gold in soil and auger along the Carnage Shear Zone.
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- Analogous geological setting target to the +2.5Moz @ +4g/t Invincible Gold Mine[1] , discovered by Goldfields Ltd near Kambalda in 2012.
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- Significant shallow bedrock gold results from limited aircore and RAB drilling completed by previous explorers see ASX Release - Carnavale Bolsters Gold Portfolio with New Acquisition Ora Banda South - 5 October 2020 :
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- Located 8km south of the Ora Banda Mining Centre within the highly endowed Yilgarn Craton and only 65km northwest of Kalgoorlie.
Carnavale has started a systematic exploration program over the tenement package. Work completed includes:
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- A review of existing and publicly available geophysical aeromagnetic surveys to define stratigraphic and structural target zones that have the potential to host gold mineralisation.
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- Validation and extensions to known gold occurrences in drilling and soil zones and define new targets.
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- Comprehensive soil sampling of the residual soil profile along the Carnage Shear Zone to define drill targets.
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- An aircore drilling program has been planned to commence in August targeting bedrock gold mineralisation.
Chairman Ron Gajewski commented:
“Exploration is underway in earnest with an aircore rig scheduled to drill in a few weeks’ time. The recent soil sampling by CAV and the existing positive shallow bedrock gold results in the limited historic drilling along the southern portion of the Carnage Shear Zone provides support to our view that this area has the potential to host a significant gold deposit. The Project is very under explored with a geological setting analogous to the +2.5Moz @ +4g/t Invincible deposit at St Ives.
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1 https://www.goldfields.com/pdf/investors/integrated-annual-reports/2020/mmr-2020.pdf
CAV Exploration
Carnavale Resources Limited (ASX: CAV) is pleased to advise it has completed a program of soil sampling that included 1,100 samples across the Ora Banda South Project (“OBSP”, “Project”), which covers an area of approximately 25km[2] , located 65km northwest of Kalgoorlie in the Yilgarn Craton, Western Australia (Figure 2). Exploration to date has included a review of existing and publicly available geophysical aeromagnetic surveys to define stratigraphic and structural target zones that have the potential to host gold mineralisation. In addition, CAV has validated and extended known gold occurrences in drilling and soil zones to define new targets.
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Figure 1, CAV tenure in yellow and soil sampling overlain with historic anomalies that show a 15km long mineralised trend
As a result of this work, the Company completed a soil sampling program of 1,100 soil samples on a nominal 50m x 200m grid covering the residual soil profile along the Carnage Shear Zone as defined by Sentinel and aeromagnetic imagery (Figure 1). The objective of this comprehensive soil sampling program was to identify drill targets and define the scale of the anomalism present within the tenement package. The assay results have been contoured at 20ppb, 30ppb and 50ppb cutoffs and are shown in figure 1
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along with the historic work. CAV samples were analysed for low level gold and multi elements to assist in the interpretation of the potential mineralisation that might be present.
CAV have identified multiple coherent +50ppb anomalies within broader +20ppb anomalous zones that are coincident with the historic work, as well as additional gold anomalies identified in the northern tenement areas. In addition to the extensive gold anomalism, CAV have also identified abundant associated arsenic anomalism highlighted in blue (Figure 1) that is commonly identified with gold bearing mineralising fluids.
Soil sampling was not undertaken in the area defined as transported cover in figure 1, as the sampling would have been ineffective. It is notable that the area held by the prospector, between the CAV tenements, has been worked by a shaft and on the surface for gold over many years and is considered by CAV to be part of the anomalous gold zone. Historic pits are shown on figure 1 by the pick and shovel symbol. These new and historic gold anomalies including the presence of the historic pits have confirmed the fertility of the geological setting and has encouraged CAV to further progress exploration at OBSP.
An aircore drilling program has been planned to target bedrock gold mineralisation and is scheduled to commence in August 2021.
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Figure 2 - Location of Carnavale’s Ora Banda South Gold Project
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Ora Banda South Project Prospectivity
The Ora Banda region is well endowed with gold, with numerous mines to be found in the local area. The Project area is surrounded by the significant historic mines of Ora Banda, Siberia, Bullant, Mt Pleasant, Cashmans and Lady Bountiful within 15km of the project. Much of the tenement package is concealed by shallow recent transported cover, which has hindered previous explorers (Figure 3).
Carnavale is excited to be exploring for structural targets defined by the Carnage Shear Zone and associated structures that intersect the late basin Kurrajong sediments, that include the Black Flag Group and Kurrawang conglomerates. This setting is analogous to the geology of the +2.5Moz Invincible deposits, discovered by Goldfields Ltd in 2012. The late basin sediments of the Kurrajong sediments were always considered a poor gold exploration target up until Goldfields Ltd discovered the Invincible deposits near Kambalda.
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Figure 3 - Ora Banda South Project showing structural interpretation of the Carnage Shear Zone and associated minor shears. (Tenure in blue over geology with historic gold deposits.)
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The Invincible deposits are hosted by mudstones of the Black Flag Group within the northwest trending Speedway Shear Zone. Mineralisation at Invincible comprises bedding-parallel, shear-hosted, laminated to brecciated quartz veins accompanied by intense albite alteration, pyrite, and free gold.
Carnavale’s prospective tenement package, at Ora Banda South, extends for over 15km along the Carnage Shear Zone hosted within the late basin Kurrajong sediments
The Ora Banda South Project
The OBSP area is covered with a layer of transported material that deepens to the north. The Project area is made up of a northern and southern group of tenements separated by a gap of 2km (Figure 3). The gap is held by a prospector who has worked the ground for surface gold for many years. For details of the previous exploration see CAV ASX Release - Carnavale Bolsters Gold Portfolio with New Acquisition Ora Banda South - 5 October 2020
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Figure 4 – OBSP - showing surface geochemical anomalies and drilling over GSWA geology map.
Programs going forward
Exploration is planned to include:
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Aircore drilling to target regolith gold anomalism leading to bedrock gold mineralisation.
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- Subject to additional results, RC and diamond drill testing for the primary source of the regolith gold anomalies.
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This release is approved by the Board of Carnavale Resources Limited.
For further information contact: Ron Gajewski Humphrey Hale Chairman Chief Executive Officer P: +61 8 9380 9098
Competent Persons Statement
The information that relates to Exploration Results for the projects discussed in this announcement represents a fair and accurate representation of the available data and studies; and is based on, and fairly represents information and supporting documentation reviewed by Mr. Humphrey Hale, a Competent Person who is a Member of The Australian Institute of Geoscientists. Mr. Hale is the Chief Executive Officer of Carnavale Resources Limited and has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resource and Ore Reserves”. Mr. Hale consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.
Forward Looking Statements
Statements regarding Carnavale’s plans with respect to the mineral properties, resource reviews, programs, economic studies and future development are forward-looking statements. There can be no assurance that Carnavale’s plans for development of its mineral properties will proceed any time in the future. There can also be no assurance that Carnavale will be able to confirm the presence of additional mineral resources/reserves, that any mineralisation will prove to be economic or that a mine will successfully be developed on any of Carnavale’s mineral properties.
Information relating to Previous Disclosure
Previously reported material Information relating to the Ora Banda Gold Project includes:
Exploration
2Carnavale Bolsters Gold Portfolio with New Acquisition Ora Banda South 5 October 2020
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APPENDIX 1 – REPORTING OF EXPLORATION RESULTS - JORC (2012) TABLE 1 ORA BANDA SOUTH PROJECT
Section 1: Sampling Techniques and Data
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Sampling techniques | • Nature and quality of sampling |
• ORA BANDA SOUTH PROJECT • Soil sampling of residual soil profile. • Samples were taken at 50m x 200m spacing. • Sampling and analytical procedures detailed in the sub-sampling techniques and sample preparation section. |
(eg cut channels, random chips, |
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or specific specialised industry |
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standard measurement tools |
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| appropriate to the minerals under | ||
| investigation, such as down hole | ||
gamma sondes, or handheld XRF |
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instruments, etc). These |
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| examples should not be taken as | ||
| limiting the broad meaning of | ||
sampling. |
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• Include reference to measures |
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| taken to ensure sample | ||
| representivity and the appropriate | ||
calibration of any measurement |
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tools or systems used. |
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• Aspects of the determination of |
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| mineralisation that are Material to | ||
| the Public Report. In cases | ||
where ‘industry standard’ work |
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| has been done this would be | ||
| relatively simple (eg ‘reverse | ||
| circulation drilling was used to | ||
obtain 1 m samples from which 3 |
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kg was pulverised to produce a |
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| 30 g charge for fire assay’). In | ||
| other cases more explanation | ||
may be required, such as where |
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there is coarse gold that has |
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| inherent sampling problems. | ||
Unusual commodities or |
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| mineralisation types (eg | ||
submarine nodules) may warrant |
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| disclosure of detailed information. | ||
| Drilling techniques | • Drill type (eg core, reverse |
• No drilling |
circulation, open-hole hammer, |
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rotary air blast, auger, Bangka, |
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| sonic, etc) and details (eg core | ||
diameter, triple or standard tube, |
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depth of diamond tails, face- |
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sampling bit or other type, |
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| whether core is oriented and if so, | ||
| by what method, etc). | ||
| Drill sample recovery | • Method of recording and |
• Sample recovery size and sample condition (dry, wet, moist) recorded. • 2kg sample taken at 20cm depth and sieved to -0.9m. |
| assessing core and chip sample | ||
recoveries and results assessed. |
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| • Measures taken to maximise |
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| sample recovery and ensure | ||
representative nature of the |
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| samples. | ||
• Whether a relationship exists |
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between sample recovery and |
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grade and whether sample bias |
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| may have occurred due to | ||
preferential loss/gain of |
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fine/coarse material. |
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| Logging | • Whether core and chip samples |
• No logging occurred |
have been geologically and |
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geotechnically logged to a level of |
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| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| detail to support appropriate | ||
Mineral Resource estimation, |
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| mining studies and metallurgical | ||
studies. |
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| • Whether logging is qualitative or |
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quantitative in nature. Core (or |
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| costean, channel, etc) | ||
| photography. | ||
| • The total length and percentage |
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| of the relevant intersections | ||
| logged. | ||
| Sub-sampling techniques and sample preparation |
• If core, whether cut or sawn and |
• No core drilling • -0.9mm Samples collected in paper pulp bags. • The samples were taken from the residual soil profile identified by Satellite sentinel imagery. At least 150 gms of sample was recovered for assay. Samples sieved to - 75um at the lab and then analysed for low level gold and multi-elements. • Samples were taken from 20cm below the surface to ensure representativity to the location. • Sample sizes were considered appropriate for this type of sampling. |
| whether quarter, half or all core | ||
| taken. | ||
| • If non-core, whether riffled, tube |
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| sampled, rotary split, etc and | ||
whether sampled wet or dry. |
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| • For all sample types, the nature, |
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quality and appropriateness of the |
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sample preparation technique. |
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• Quality control procedures |
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| adopted for all sub-sampling | ||
stages to maximise representivity |
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of samples. |
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• Measures taken to ensure that |
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| the sampling is representative of | ||
the in situ material collected, |
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| including for instance results for | ||
field duplicate/second-half |
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| sampling. | ||
• Whether sample sizes are |
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appropriate to the grain size of |
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the material being sampled. |
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| Quality of assay data and laboratory tests |
• The nature, quality and |
• Carnavale used ALS in Perth to undertake assaying of the samples. Techniques used were Au-TL43 for gold and ME- MS43 for multi elements. The samples were sieved to -75um prior to assay. • Carnavale introduced standards and blanks into the batches at 1 in 20 samples. These certified reference materials were chosen to fall within the range of expected results. • In addition Quality control process and internal laboratory checks demonstrated acceptable levels of accuracy. |
appropriateness of the assaying |
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and laboratory procedures used |
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| and whether the technique is | ||
considered partial or total. |
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• For geophysical tools, |
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spectrometers, handheld XRF |
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| instruments, etc, the parameters | ||
used in determining the analysis |
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including instrument make and |
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model, reading times, calibrations |
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| factors applied and their | ||
derivation, etc. |
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| • Nature of quality control |
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procedures adopted (eg |
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| standards, blanks, duplicates, | ||
external laboratory checks) and |
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whether acceptable levels of |
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accuracy (ie lack of bias) and |
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| precision have been established. |
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| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Verification of sampling and assaying |
• The verification of significant |
• Internal laboratory standards are completed as a matter of course. • Sample data was captured in the field and data entry completed in the Company’s Perth office. Sample data was then loaded into the Company’s database and validation checks completed to ensure data accuracy. |
intersections by either |
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| independent or alternative | ||
company personnel. |
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• The use of twinned holes. |
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| • Documentation of primary data, |
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| data entry procedures, data | ||
verification, data storage |
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(physical and electronic) |
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protocols. |
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| • Discuss any adjustment to assay |
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data. |
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| Location of data points |
• Accuracy and quality of surveys |
• Sample locations were surveyed by handheld GPS with horizontal accuracy (Easting and Northing values) of +-5m. • Grid System – MGA94 Zone 51. |
used to locate drill holes (collar |
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| and down-hole surveys), | ||
trenches, mine workings and |
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other locations used in Mineral |
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| Resource estimation. | ||
| • Specification of the grid system |
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used. |
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| • Quality and adequacy of |
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topographic control. |
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| Data spacing and distribution |
• Data spacing for reporting of |
• Soil samples were taken at a nominal 200m x 50 spacing. • Carnavale considers this appropriate spacing to identify gold anomalism in the residual soil profile at Ora Banda South project. • No sample compositing has been completed. |
Exploration Results. |
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• Whether the data spacing and |
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distribution is sufficient to |
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| establish the degree of geological | ||
and grade continuity appropriate |
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for the Mineral Resource and Ore |
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| Reserve estimation procedure(s) | ||
| and classifications applied. | ||
• Whether sample compositing has |
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been applied. |
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| Orientation of data in relation to geological structure |
• Whether the orientation of |
• Orientation of traverses has been chosen to reflect the geology from the magnetics. • Insufficient data to determine orientation of mineralised structures. |
| sampling achieves unbiased | ||
sampling of possible structures |
||
and the extent to which this is |
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| known, considering the deposit | ||
type. |
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• If the relationship between the |
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drilling orientation and the |
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| orientation of key mineralised | ||
structures is considered to have |
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| introduced a sampling bias, this | ||
should be assessed and reported |
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| if material. | ||
| Sample security | • The measures taken to ensure |
• Samples were securely stored in field and transported to the laboratory by an authorised company representative or an authorised transport agency. |
| sample security. | ||
| Audits or reviews | • The results of any audits or |
• No audits or reviews completed. |
reviews of sampling techniques |
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| and data. |
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Section 2: Reporting of Exploration Results – ORA BANDA SOUTH PROJECT
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Mineral tenement and land tenure status |
• Type, reference name/number, |
• The Southern Tenement package of the Ora Banda South project includes five granted prospecting licences (P16/3000, P16/3001, P16/3077, P16/3081, P16/3082) and is owned by Western Resources Pty Ltd. Carnavale Resources Ltd has a 2 year option to purchase 80% of the tenements. • The area has 2 native title claimants the Maduwongga and the Marlinyn Ghoorlie. |
location and ownership including |
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agreements or material issues |
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with third parties such as joint |
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| ventures, partnerships, overriding | ||
royalties, native title interests, |
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historical sites, wilderness or |
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| national park and environmental | ||
| settings. | ||
• The security of the tenure held at |
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the time of reporting along with |
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any known impediments to |
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| obtaining a licence to operate in | ||
the area. |
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| Exploration done by other parties |
• Acknowledgment and appraisal |
• In the early 1990’s Finders Gold NL completed an auger soil sampling program over an area now covered by the southern two prospecting licences (P16/2545 – 2546). This program outlined a distinct NW-SE trending gold anomaly in the western portion of the tenement block. • In the mid 1990’s Merritt Mining NL completed an exploration program over an area now covered by the northern most three prospecting licences (P16/2567 – 2569). Exploration comprised gridding, geochemical soil sampling, interpretation of aeromagnetic data and reconnaissance RAB drilling. The soil sampling outlined a NW trending gold anomaly contiguous with the gold anomaly outlined by Finders Gold NL directly to the SE. The RAB drilling was considered largely ineffective as the drilling terminated in a highly weathered part of the profile which was potentially gold depleted. • The two historical soil geochemistry programs together delineated a distinct zone of anomalous gold geochemistry within the western portion of the current project area. The gold anomaly (>10ppb Au, peak 54ppb Au) trends north westerly over a strike length in excess of 4km and broadly parallels the interpreted regional lithological trends. • Several kilometres of strike of the gold in soil anomaly remained untested by drilling and represented a high priority drill target. • Carrick Gold investigated the soil geochemical anomalies (during the period 2009 – 2012) with a program of 31 aircore drill holes (KWAC 035-065) on wide spaced traverses across the southern most part of the surface geochemical anomaly on P16/2545-2546. The holes were drilled along three separate east- west traverses. The traverses were spaced between 520m and 640m apart, with holes spaced between 80m and 160m apart along the traverses. This first pass wide spaced program successfully returned significant gold results KWAC055 |
of exploration by other parties. |
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| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| and KWAC056 which tested the southern part of the historical gold soil anomaly. These holes returned the following intersections: • KWAC 055 – 5m @ 2.25/t from 116m down hole (at end of hole). This intersection was associated with a strongly foliated, intense carbonate-silica altered, quartz sulphide veined felsic volcanic /volcaniclastic – sediment at the end of hole. • KWAC 056 – 2m @ 2.00/t from 68m down hole associated with a moderately weathered, strongly iron stained felsic volcanic / volcaniclastic. • The significant intercepts from the aircore program were followed by a program of 4 RC holes. These holes were poorly sited and failed to provide a test of the gold mineralised structure intersected in the aircore drilling. • During the period 2013 – 2014 Phoenix Gold Ltd completed a review of previous exploration, geological due diligence, database updates, geological research and 3D Common Earth Modelling. • In 2015 Siburan Resources Ltd entered into an option agreement with Western Resources Pty Ltd. Siburan Resources Ltd completed one diamond hole and 21 aircore holes. |
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| Geology | • Deposit type, geological setting |
• Target is shear hosted gold mineralisation associated mineralised structures with the Black Flag Group sediments. |
and style of mineralisation. |
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| Drill hole Information |
• A summary of all information |
• Historic drilling results have previously been reported by Carnavale – refer ASX release dated 5 October 2020.. • This report deals with fresh soil sampling data |
material to the understanding of |
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the exploration results including a |
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| tabulation of the following | ||
information for all Material drill |
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| holes: | ||
| • easting and northing of the drill | ||
| hole collar | ||
| • elevation or RL (Reduced Level – | ||
| elevation above | ||
| sea level in metres) of the drill | ||
| hole collar | ||
| • dip and azimuth of the hole | ||
| • down hole length and interception | ||
| depth | ||
| • hole length. | ||
| • If the exclusion of this information |
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| is justified on the basis that the | ||
information is not Material and |
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| this exclusion does not detract | ||
| from the understanding of the | ||
report, the Competent Person |
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should clearly explain why this is |
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| the case. |
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| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Data aggregation methods |
• In reporting Exploration Results, |
• No metal equivalent values or formulas used. |
weighting averaging techniques, |
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| maximum and/or minimum grade | ||
truncations (eg cutting of high |
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grades) and cut-off grades are |
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usually Material and should be |
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| stated. | ||
| • Where aggregate intercepts |
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incorporate short lengths of high |
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grade results and longer lengths |
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| of low grade results, the | ||
procedure used for such |
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aggregation should be stated and |
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some typical examples of such |
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aggregations should be shown in |
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| detail. | ||
| • The assumptions used for any |
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reporting of metal equivalent |
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values should be clearly stated. |
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| Relationship between mineralisation widths and intercept lengths |
• These relationships are |
• These samples represent point data. |
particularly important in the |
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reporting of Exploration Results. |
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| • If the geometry of the |
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mineralisation with respect to the |
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drill hole angle is known, its |
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nature should be reported. |
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| • If it is not known and only the |
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down hole lengths are reported, |
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there should be a clear statement |
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| to this effect (eg ‘down hole | ||
| length, true width not known’). | ||
| Diagrams | • Appropriate maps and sections |
• Appropriate summary diagrams with Scale and MGA 94 coordinates are included in the accompanying report above. |
(with scales) and tabulations of |
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| intercepts should be included for | ||
| any significant discovery being | ||
reported. These should include, |
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but not be limited to a plan view |
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of drill hole collar locations and |
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| appropriate sectional views. | ||
| Balanced reporting | • Where comprehensive reporting |
• The samples locations are represented diagrammatically in the report attached |
of all Exploration Results is not |
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| practicable, representative | ||
reporting of both low and high |
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grades and/or widths should be |
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practiced to avoid misleading |
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| reporting of Exploration Results. | ||
| Other substantive exploration data |
• Other exploration data, if |
• Historical soil sampling programs have defined a NW trending gold anomaly which is broadly coincident with the interpreted trends of the local stratigraphic contacts. |
meaningful and material, should |
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be reported including (but not |
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| limited to): geological | ||
observations; geophysical survey |
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results; geochemical survey |
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results; bulk samples – size and |
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| method of treatment; | ||
| metallurgical test results; bulk | ||
density, groundwater, |
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geotechnical and rock |
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| characteristics; potential | ||
deleterious or contaminating |
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substances. |
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| Further work | • The nature and scale of planned |
• Planning has commenced on a drilling program to test the surface geochemical anomalies. |
| further work (eg tests for lateral | ||
extensions or depth extensions |
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or large-scale step-out drilling). |
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• Diagrams clearlyhighlighting the |
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| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| areas of possible extensions, | ||
including the main geological |
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| interpretations and future drilling | ||
areas, provided this information |
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is not commercially sensitive. |
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