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AUKING MINING LIMITED — Capital/Financing Update 2015
Apr 22, 2015
64355_rns_2015-04-22_1dc744d3-89d7-47d0-82e6-fb5e4218af41.pdf
Capital/Financing Update
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2015 MOUNT ISA EXPLORATION ACTIVITIES – PRIORITY ON LARGESCALE TARGETS
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ABN 27 099 098 192
CYU is a resource exploration and development company with a primary focus on project interests in the Mount Isa region of north
Issued Capital: 473,027,475 Ordinary shares
4,000,000 Performance shares
Directors:
Zhihua Yao Chairman Paul Williams Managing Director Zewen (Robert) Yang Executive Director
Company Secretary:
Paul Marshall
CHINALCO YUNNAN COPPER RESOURCES LTD
Suite 4, Level 8, 320 Adelaide Street BRISBANE Q 4000 Ph: +61 7 3211 9013 Email: [email protected]
23 April 2015
Summary
-
CYU appointed two former senior Xstrata/Mount Isa Mines geologists in early 2015 – they were initially tasked to undertake a thorough review of CYU’s exploration portfolio in Mount Isa and to develop program priorities for 2015.
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A central component of the review was a CYU exploration strategy to identify projects with potential to establish at least one (1) million tonnes (Mt) contained copper (and/or copper equivalent)
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The review is now complete and CYU’s Board has approved a $1.8 million exploration program for 2015, which proposes activities on the following highly prospective areas:
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The Roseby Trend – a 25km long, north-south trending zone of extensive copper-gold anomalism that is continuous with Altona Mining’s Roseby Project to the north. This trend hosts the Native Companion and Brolga prospects.
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Elaine/Blue Caesar/Jubilee – CYU already has a defined inferred JORC resource at Elaine Dorothy of 27.7Mt @ 0.53% Cu and 0.08 g/t Au within a large alteration system that is likely to join with Blue Caesar (500m northwest of Elaine)
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Other Iron Oxide Copper-Gold Targets - the technical review has also highlighted the potential for significant iron oxide copper gold (IOCG) mineralisation within CYU’s exploration portfolio.
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CYU’s 2015 exploration program comprises a combination of drilling, IP surveys, magnetic modelling and geological mapping across the 850km[2 ] tenure.
Contact
Paul Williams Managing Director [email protected] Mobile: +61 419 762 487
The Board of Chinalco Yunnan Copper Resources Ltd (ASX:CYU) continues to focus on transforming the Company into a substantial mid-tier mining group, with a primary exploration focus in the Mount Isa region and the ongoing pursuit of project acquisition opportunities currently under review and negotiation – both locally and overseas.
ASX Release 23 April 2015 2015 Mount Isa Exploration Activities
2015 Mount Isa Exploration Program
CYU’s Board has approved its 2015 Mount Isa exploration activities, after completion of a detailed project review conducted by its recently-appointed Exploration Manager, David A- Izzeddin and Senior Geologist Dr Tom Evans. Both Mr A-Izzeddin and Dr Evans were previously employed in Xstrata Copper’s Mount Isa operations and have extensive knowledge of the prospects within CYU’s exploration tenure portfolio.
CYU’s key criterion underpinning the project review is to identify exploration targets with the potential of establishing a resource base of at least one (1) million tonnes of copper and/or copper equivalent minerals (“the one million tonne criterion”).
CYU has adopted this criterion in recognition that shareholders (and the wider investment community) have a very high expectation that exploration dollars are focussed on areas of maximum potential. A significant component of CYU exploration activities in recent times has been to identify and recognise near surface mineralisation across a very wide target area using techniques such as geochemical soil sampling and MMI (mobile metal ion) analysis. In addition, the exploration drilling has produced some high grade copper, gold and other mineralisation results. However, it became apparent from the project review that in order to meet CYU’s one million tonne criterion, the primary focus of activities (and exploration spend) must be on large alteration systems that exist within the CYU tenure portfolio. Accordingly, there has been a re-prioritisation of exploration targets and proposed activities.
There are a number of mineralised systems in the Eastern Succession of the Mount Isa Inlier that host over 1Mt of copper. These include Glencore’s Ernest Henry mine that has an established resource of 1.8Mt copper and Altona Mining’s Cloncurry Project that hosts 1.6Mt copper. CYU has a number of prospects with similar characteristics to both the Ernest Henry and Cloncurry projects and these deposits are considered by CYU to be an appropriate benchmark to apply for its exploration activities in the Mount Isa/Cloncurry region of northwest Queensland.
The CYU Mount Isa exploration portfolio covers approximately 850km[2] , centred in an area 75km northeast of Mount Isa and 40km west to northwest of Cloncurry, in northwestern Queensland (See Annexure A).
The CYU exploration portfolio area comprises a number of farm-in agreements (Mount Isa Mines – a Glencore company, Altona Mining/Roseby Copper South, Elementos and Goldsearch), together with tenure directly held by CYU.
The $1.8 million exploration program for 2015 will consist of a range of prospect delineation activities including further drilling, induced polarisation (IP) geophysics surveys, extensive surface geochemical surveying, magnetic modelling and geological mapping.
A summary of the areas of particular interest in the 2015 exploration program is set out below.
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ASX Release 23 April 2015 2015 Mount Isa Exploration Activities
The Roseby Trend
This regionally significant north-south trending belt of copper mineralisation extends over 50km. The northern half of this belt hosts Altona Mining’s Cloncurry Project which has a current JORC resource of 286.6Mt @ 0.57% Cu and 0.04 g/t Au for 1,647,000 tonnes of copper and 409,000 oz of gold ( Source: Altona Mining Quarterly Report March 2015 ASX – 21 April, 2015 ). CYU holds tenure over the southern 25km extent of this belt, while comprising very similar geology to the Cloncurry Project, remains largely untested by modern exploration methods.
The Roseby Trend extends across four (4) CYU exploration tenements – comprising EPMs 10833, 11611 and 14535 (all Roseby South Joint Venture) and EPM 18973 (Millennium Joint Venture). Copper mineralisation along the Roseby Trend has already been defined by historic prospects and workings, elevated rock chip samples and soil geochemistry along a structural corridor that is 0.5-1.0km wide. The copper mineralisation is typically associated with sulphides from shallow depths and, in contrast to the Cloncurry Project mineralisation, only minor native copper has been noted and the copper mineralisation is often associated with significant gold mineralisation.
The main prospects to be tested by CYU’s exploration team include Native Companion, Brolga, Cameron Crossing and Hobby. Of these, the primary targets for 2015 are:
Native Companion – a 3.6km zone of historic workings, elevated soil geochemistry and rock chip results and was the subject of an initial drilling program by CYU late in 2014. Four of the CYU drill holes in late 2014 reported intersections including:
- Q034: 26m @ 0.68% Cu & 0.25 g/t Au (63-89m depth) including 15m @ 1.15% Cu and 0.41 g/t Au
In addition, several copper-gold rock chip sample results (from historic programs) have reported substantial copper-gold results that may warrant future drill testing, including the following:
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22.26% Cu
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26.9% Cu, 2.86g/t Au, 7.2g/t Ag and 883ppm Mo
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10.8% Cu & 1.63 g/t Au
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10.1% Cu & 13.5 g/t Au
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6.22% Cu & 5.06 g/t Au
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4.16% Cu & 2.55 g/t Au
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1.27% Cu & 4.32 g/t Au
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1.23% Cu & 8.81 g/t Au
The Native Companion prospect is partially covered with transported sediments with only sporadic outcropping exposure. This prospect remains substanitally under-evaluated. A reinterpretation of the available mapping and geochemistry indicates that the area is host to a series of mineralised shear zones with higher grades being developed where the shear zones intersect reactive rock-types. CYU’s planned exploration activities will comprise detailed geological mapping and an IP survey to develop targets that will then be followed up by drill testing during the year.
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ASX Release 23 April 2015 2015 Mount Isa Exploration Activities
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Gulliver’s Gossan
Prince of Wales
Native Companion
Brolga
Camel Rock
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Figure 1: Native Companion-Brolga area with historic prospects and workings, rock chip and soil geochemistry, and interpreted mineralised lode structures overlain on TMI magnetic image.
- Brolga Camel Rock – a 2.3km zone of historic workings and rock chip results up to 30.0% Cu and 1.12g/t Au. The MMI soil survey conducted by CYU in 2014 defined a series of mineralised zones within the Roseby Corridor including a 1.4km x 0.7km Cu-Au anomaly that was subsequently the subject of an initial two hole drilling program by CYU late in 2014. Reported drill intersections included:
• Q-037: 18m @ 0.37% Cu including 8m @ 0.69% Cu.
A number of mineralised structures have been located in the area and follow-up investigations are required. CYU’s planned exploration activities will comprise detailed geological mapping and an IP survey to develop targets that will then be followed up by drill testing later in the year.
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ASX Release 23 April 2015 2015 Mount Isa Exploration Activities
Elaine/Blue Caesar/Jubilee
The Elaine prospect has already been the subject of over 13,000m of drilling by CYU since 2009. In September 2012, CYU announced a maiden inferred JORC resource at Elaine of 27.7Mt @ 0.53% Cu and 0.08 g/t Au . The Elaine prospect is part of a large alteration system that has been mapped over 10km on EPM 14467 and 14022. The current resource has only been tested over a 400m strike length and remains open at depth and may potentially join up with the Blue Caesar prospect, located 500m to the northwest of Elaine.
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MARY KATHLEEN
5km long zone of strong
metasomatic alteration
Poorly tested 3km
long target along
Mary Kathleen –
strike from Jubilee
Mount Colin
Corridor
Elaine
27.7Mt @ 0.53% Cu
& 0.08g/t Au
Elaine Magnetic
Target
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Figure 2: The Elaine-Blue Caesar-Jubilee area with historic prospects and workings, rock chip and soil geochemistry overlain on TMI magnetic image. The figure also depicts areas of mapped skarn alteration (associated with the Elaine-Blue Caesar mineralisation) as well as the Ballara Quartzite (Pkb)-Corella Formation (Pkc) contact that hosts the Jubilee mineralisation.
There also exists a 1.0km x 0.5km magnetic anomaly to the south of Elaine that remains virtually unexplored. Rock chip samples from earlier programs in this area include:
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7.52% Cu & 6.40 g/t Au
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5.34% Cu & 0.83 g/t Au
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5.02% Cu & 1.85 g/t Au
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4.88% Cu & 1.87 g/t Au
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ASX Release 23 April 2015 2015 Mount Isa Exploration Activities
CYU’s exploration team proposes to carry out a range of activities designed to identify drill targets for later in the year – such activities to include mapping, drill hole re-logging, magnetic modelling, and 3D geological modelling.
During 2014 CYU directed considerable focus on the Jubilee prospect, which is only 900m west of Blue Caesar and 5.5km south of the historic Mary Kathleen uranium mine. As reported previously, the results of the Jubilee exploration programs to date have already defined a strong copper-gold mineralised zone over a 500m strike length. There still remains a 3.2km north-south zone of Ballara Quartzite/Corella Formation to the north of the current Jubilee prospect that requires further exploration and assessment. Reconnaissance mapping and geochemistry soil sampling activities are planned for this prospect during the course of 2015. Should the mineralisation be established to continue further to the north, there is potential for the Jubilee area to provide a complementary/satellite source of mineralised ore to a primary future mining operation at Elaine.
Iron Oxide Copper-Gold Potential
The recently completed technical review has also highlighted the potential for the CYU tenement package in northwest Queensland to host significant iron oxide copper gold (IOCG) mineralisation. A number of substantial IOCG deposits have been recognised in the Eastern Succession – Mount Isa Inlier including Glencore’s Ernest Henry and Mount Margaret projects and Altona Mining’s Little Eva project. These deposits have the size potential to meet CYU’s exploration criterion (ie > 1Mt of contained copper or copper equivalent).
A number of prospects have been recognised within the CYU portfolio that exhibit many of the ingredients typical in IOCG deposits. These include:
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Sodic-calcic and potassic alteration;
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Regional scale faulting;
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Strong magnetic signatures; and
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Elevated copper and gold results in soil and rock chip results.
Featured prospects in this region include:
Oliver Twist (EPM 14535) – a 3.3km x 500m strong magnetic anomaly with a sinusoidal shape. Rock chip samples in the area from earlier activities include results of 14.00% Cu & 2.0 g/t Au .
Round Mount NW & SE (EPM 10833) – further strong magnetic anomalies along a 5km strike length. Rock chip samples in the area from earlier activities include results of 3.42% Cu & 0.75 g/t Au .
Campbell’s Prospect (EPM 14365) – located on the margin of a large 600m x 400m magnetic anomaly with rock chip samples from earlier activities up to 3.58% Cu and 0.12 g/t Au .
The Tub (EPM 14365) – a 1,600m x 1,100m strong magnetic anomaly with rock chip samples from earlier activities up to 2.28% Cu and 0.25 g/t Au .
A large number of these prospects are associated with magnetic complexes contained within CYU’s exploration tenement holdings and remain poorly tested by modern
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ASX Release 23 April 2015 2015 Mount Isa Exploration Activities
exploration methods or drilling. These prospects all remain early stage exploration targets and will be evaluated in 2015 as part of this year’s exploration campaign. Reconnaissance mapping and geochemical soil sampling activities are planned for these prospects during the course of 2015.
ooo000ooo
CYU Managing Director, Paul Williams, said CYU’s criteria of pursuing exploration targets with the potential of establishing at least one million tonnes of copper and/or copper equivalent minerals has created a renewed (and important) focus for the Mount Isa-based exploration team. “The investment market now has little tolerance for exploration expenditure that does not deliver results. The project review conducted by the highlyexperienced former Xstrata/MIM geologists who have joined the CYU team has highlighted the significant potential within CYU’s Mount Isa exploration portfolio. The CYU Board is really looking forward to its 2015 exploration activities and the results that will follow.”
On behalf of the Board
Paul Williams Managing Director [email protected] +61 419 762 487
About CYU
Chinalco Yunnan Copper Resources Ltd (CYU) is a resource exploration and development company with project interests in the Mt Isa region of north Queensland.
CYU’s largest shareholder is China Yunnan Copper (Australia) Investment and Development Co Ltd (“CYC”), owning 63.4% of the total issued shares in CYU. CYC is a wholly-owned subsidiary of Kunming-based Yunnan Copper Industry (Group) Co Ltd, which is the third largest producer of smelted copper product in China. In turn, Yunnan Copper Group is a subsidiary of Aluminium Corporation of China (Chinalco) which is the largest producer of aluminium product in China and the second largest world-wide. CYU has offices in Brisbane, and Mt Isa. The Company is listed on the ASX under the symbol “CYU”.
Competent Person’s Statement
The information regarding exploration activities and information set out in this ASX Release is based on information compiled by Mr David A-Izzeddin, a Competent Person, who is CYU’s Exploration Manager and a Member of the Australian Institute of Geoscientists. Mr A-Izzeddin has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity that is being undertaken 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 A-Izzeddin consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
This Mineral Resources Statement for the Elaine prospect as outlined above is extracted from a previous ASX announcement titled Elaine Project Resource Upgrade, dated 18 October 2012.
When used, the term “copper equivalent” refers to copper in concentrate produced, or planned to be produced. It does not refer to metal contained within insitu resources, reserves or drill results. The copper equivalent grade is calculated by factoring the copper grade by resource from all metals (NSR) being copper, zinc, gold and silver.
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ASX Release 23 April 2015 2015 Mount Isa Exploration Activities
ANNEXURE A
(CYU’s Mt Isa Tenement Location)
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JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | • Nature and quality of sampling (eg cut | •Diamond core and reverse circulation drilling |
| techniques | channels, random chips, or specific specialised | was used to obtain 1 m samples from which 1 |
| industry standard measurement tools | kg was pulverised to produce a primary pulp | |
| appropriate to the minerals under investigation, | from which ICP (ALS MEICP-41) and fire assay |
|
| such as down hole gamma sondes, or | (ALS AA25) analyses were completed. | |
| handheld XRF instruments, etc). These | Sampling was carried out under CYU’s | |
| examples should not be taken as limiting the | protocols and QAQC procedures | |
| broad meaning of sampling. | •Rock chip samples relate to historical data not | |
| • Include reference to measures taken to ensure | collected by CYU. Samples were collected in | |
| sample representivity and the appropriate | the 1970’s and 1980’s by companies including | |
| calibration of any measurement tools or | CRA Exploration Pty Ltd, Roebuck Resources | |
| systems used. | NL, Carpentaria Exploration Company Pty Ltd, | |
| • Aspects of the determination of mineralisation | Clifford Minerals Ltd, Menzies Gold NL, Delta | |
| that are Material to the Public Report. | Gold Exploration Pty Ltd, Pimex Pty Ltd and | |
| • In cases where ‘industry standard’ work has | Pancontinental Mining Limited. The quality of | |
| been done this would be relatively simple (eg | the analysis and sampling is uncertain although | |
| ‘reverse circulation drilling was used to obtain 1 | there is no reason to doubt the quality. |
|
| m samples from which 3 kg was pulverised to | •Soil samples relate to historical data not | |
| produce a 30 g charge for fire assay’). In other | collected by CYU. Samples were collected in | |
| cases more explanation may be required, such | the 1970’s and 1990’s by companies including | |
| as where there is coarse gold that has inherent | CRA Exploration Pty Ltd and MIM Exploration | |
| sampling problems. Unusual commodities or | Pty Ltd. The quality of the analysis and | |
| mineralisation types (eg submarine nodules) | sampling is uncertain although there is no | |
| may warrant disclosure of detailed information. | reason to doubt the quality. | |
| Drilling | • Drill type (eg core, reverse circulation, open- | •Diamond core drilling at NQ diameter, standard |
| techniques | hole hammer, rotary air blast, auger, Bangka, | tube, using an RD750 truck-mounted rig, |
| sonic, etc) and details (eg core diameter, triple | HD900 track-mounted rig and a Universal | |
| or standard tube, depth of diamond tails, face- | DR33. Drill core was oriented using the Ace | |
| sampling bit or other type, whether core is | system. | |
| oriented and if so, by what method, etc). | •Reverse Circulation drilling using 5 ¼” face | |
| sampling bit; Schramm 610 with 1100cfm @ | ||
| 450psi air. | ||
| Drill | • Method of recording and assessing core and | •Core recovery is measured using standard |
| sample | chip sample recoveries and results assessed. | procedures by orientating core and measuring |
| recovery | • Measures taken to maximise sample recovery | between core markers and comparing with |
| and ensure representative nature of the | downhole depths by the drillers | |
| samples. | •Sample recoveries for RC drilling noted on Log | |
| • Whether a relationship exists between sample | sheet based on visual estimates as well as | |
| recovery and grade and whether sample bias | sample weight compared to theoretical weight | |
| may have occurred due to preferential | and checking sample loss through outside | |
| loss/gain of fine/coarse material. | return and sampling equipment | |
| •Reverse Circulation holes are collared with a | ||
| well-fitting stuffing box, material to outside | ||
| return minimised. Drilling is undertaken using | ||
| auxiliary compressors and boosters to keep | ||
| hole dry and lift the sample to the sampling | ||
| equipment. Cyclone and sampling equipment is | ||
| checked regularly and cleaned. Hole is flushed | ||
| at end of each sample and end of rod. | ||
| •No obvious relationship between sample | ||
| recovery and grade | ||
| Logging | • Whether core and chip samples have been | •Logging is carried out by a geologist, using |
| geologically andgeotechnically logged to a | CYU loggingsystem which has been |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| level of detail to support appropriate Mineral | developed to accurately reflect the geology of | |
| Resource estimation, mining studies and | the area and mineralisation styles. | |
| metallurgical studies. | •Washed chip samples are logged on site using | |
| • Whether logging is qualitative or quantitative in | qualitative and descriptive terminology. | |
| nature. Core (or costean, channel, etc) | •Reverse Circulation logging is both qualitative | |
| photography. | and quantitative in nature and captures | |
| • The total length and percentage of the relevant | downhole depth, colour, lithology, texture, | |
| intersections logged. | alteration, sulphide type, sulphide percentage, | |
| structure. | ||
| •Core logging also captures RQD, Recovery and | ||
| orientated structures. Magnetic susceptibility | ||
| also collected. Drill core is photographed. | ||
| •All drill holes are logged in full | ||
| Sub- | • If core, whether cut or sawn and whether | •Diamond drill core split with diamond saw and |
| sampling | quarter, half or all core taken. | half core sampled on 1m intervals |
| techniques and sample preparation |
• If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. |
•Riffle splitting of dry RC samples •Certified standards are included 1 in 40 samples |
| • For all sample types, the nature, quality and | •Subsets of sample pulps sent to SGS for | |
| appropriateness of the sample preparation | external lab checks | |
| technique. | •Sample preparation methods appropriate to | |
| • Quality control procedures adopted for all sub- | exploration drilling | |
| sampling stages to maximise representivity of | ||
| samples. | ||
| • Measures taken to ensure that the sampling is | ||
| representative of the in situ material collected, | ||
| including for instance results for field | ||
| duplicate/second-half sampling. | ||
| • Whether sample sizes are appropriate to the | ||
| grain size of the material being sampled. | ||
| Quality of | • The nature, quality and appropriateness of the | •Samples are hand delivered to the ALS |
| assay data | assaying and laboratory procedures used and | laboratory in Mount Isa for sample preparation |
| and | whether the technique is considered partial or | of fine crush, riffle split and pulverizing of 1kg to |
| laboratory | total. | 85% < 75μm. |
| tests | • For geophysical tools, spectrometers, handheld | •Pulps are analysed by using method code ME- |
| XRF instruments, etc, the parameters used in | ICP41, a 34 element determination using an | |
| determining the analysis including instrument | aqua-regia digestion with ICP-AES | |
| make and model, reading times, calibrations | determination and by fire assay for gold using a | |
| factors applied and their derivation, etc. | 30g charge (method code AA-25) | |
| • Nature of quality control procedures adopted | •GBM® Standards are inserted in the sample | |
| (eg standards, blanks, duplicates, external | sequence at the rate of 1 in 20 samples. | |
| laboratory checks) and whether acceptable | ||
| levels of accuracy (ie lack of bias) and | ||
| precision have been established. | ||
| Verification | • The verification of significant intersections by | •No independent verification required at this |
| of | either independent or alternative company | stage |
| sampling and assaying |
personnel. • The use of twinned holes. • Documentation of primary data, data entry |
•Laboratory CSV files are merged with drill hole data files using unique sample numbers as the key. |
| procedures, data verification, data storage | •No adjustments made to assay data | |
| (physical and electronic) protocols. | ||
| • Discuss any adjustment to assay data. | ||
| Location of | • Accuracy and quality of surveys used to locate | •Drill holes are located using handheld GPS |
| data points | drill holes (collar and down-hole surveys), | receivers. |
| trenches, mine workings and other locations | •UTM projection GDA94 Zone 54 | |
| used in Mineral Resource estimation. | •Topographic control from handheld GPS survey | |
| • Specification of the grid system used. | using local differential control. |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| • Quality and adequacy of topographic control. | ||
| Data | • Data spacing for reporting of Exploration | •Elaine Dorothy exploration drilling was |
| spacing | Results. | completed on 80m to 40m sections. Data |
| and distribution |
• Whether the data spacing and distribution is sufficient to establish the degree of geological |
spacing and distribution is sufficient to establish the degree of geological and grade continuity |
| and grade continuity appropriate for the Mineral | appropriate for a Mineral Resource. Sample |
|
| Resource and Ore Reserve estimation | intervals are composited to 5m lengths. | |
| procedure(s) and classifications applied. | •Jubilee and Blue Caesar exploration drilling at | |
| • Whether sample compositing has been | nominal 100m section spacing and 100m toe | |
| applied. | spacing. Too early for resource estimation. No | |
| compositing has been applied. | ||
| •Initial drill testing of surface geochemistry at | ||
| Native Companion and Brolga. Too early for | ||
| resource estimation. No compositing has been | ||
| applied. | ||
| Orientation | • Whether the orientation of sampling achieves |
•Drill sections are transverse to the strike of the |
| of data in | unbiased sampling of possible structures and | outcrop. |
| relation to geological structure |
the extent to which this is known, considering the deposit type. • If the relationship between the drilling |
•No bias is believed to be introduced by the sampling method. |
| 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 | • The measures taken to ensure sample | •Samples are hand delivered by CYU staff to the |
| security | security. | ALS laboratory in Mount Isa |
| Audits or | • The results of any audits or reviews of | •Internal review of methodology is undertaken |
| reviews | sampling techniques and data. | regularly by senior company personnel. |
Section 2 Reporting of Exploration Results
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Mineral | • Type, reference name/number, location and | • | The Quamby Project consists of |
| tenement and | ownership including agreements or material |
+860km2under Earn-In agreements with | |
| land tenure | issues with third parties such as joint | Altona Mining Ltd, Elementos Ltd and | |
| status | ventures, partnerships, overriding royalties, | Mount Isa Mines Ltd. | |
| native title interests, historical sites, | • | There are no known impediments to | |
| wilderness or national park and environmental | exploration in the current area of | ||
| settings. | operations. | ||
| • The security of the tenure held at the time of | |||
| reporting along with any known impediments | |||
| to obtaining a licence to operate in the area. | |||
| Exploration | • Acknowledgment and appraisal of exploration | • | Surface soil and rock chip sampling |
| done by other | by other parties. |
shown in the attached figures was | |
| parties | conducted in the 1970’s, 1980’s and | ||
| 1990’s by companies including CRA | |||
| Exploration Pty Ltd, Roebuck Resources | |||
| NL, Carpentaria Exploration Company | |||
| Pty Ltd, Clifford Minerals Ltd, Menzies | |||
| Gold NL,Delta Gold Exploration PtyLtd, |
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Pimex Pty Ltd and Pancontinental Mining | |||
| Limited. | |||
| • | Regional airborne magnetic survey flown | ||
| by Mount Isa Mines Pty Ltd in 1992 | |||
| • | Mount Isa Mines Pty Ltd completed a | ||
| percussion drilling program at Native | |||
| Companion in 1963 including 46 holes | |||
| for 2,623 feet (799 metres) with the | |||
| deepest holes being 93 feet deep (i.e. 28 | |||
| metres). Drilling was completed on a | |||
| local grid and accurate location of drill | |||
| collars has not been determined | |||
| • | Elaine was previously drill tested by | ||
| various companies including Mineral | |||
| Ventures Ltd (11 diamond drill holes for | |||
| 738 metres) in 1955, Mary Kathleen | |||
| Uranium Ltd 7 diamond holes and 12 | |||
| reverse circulation holes for 3,107 | |||
| metres) in the late 1970’s and early | |||
| 1980’s and Goldsearch (7 reverse | |||
| circulation holes for 959m) in 2006. | |||
| Geology | • Deposit type, geological setting and style of | • | The Elaine Dorothy and Blue Caesar |
| mineralisation. | mineralisation is shear-hosted copper- | ||
| gold-rare earth mineralisation within an | |||
| extensive zone of skarn alteration. | |||
| • | The Jubilee mineralisation is localised | ||
| within a north trending quartz shear. | |||
| • | Native Companion and Brolga | ||
| mineralisation occurs as metasomatic | |||
| replacement in structurally controlled | |||
| zones related to major regional | |||
| structures. The closest example of this | |||
| style of mineralisation is the Roseby | |||
| Deposit, located north of Native | |||
| Companion. | |||
| • | The Oliver Twist, Round Mount NW & | ||
| SE, The Tub and Campbell’s prospect | |||
| are hosted in red rock-magnetite altered | |||
| calc-silicates of the Corella Formation | |||
| associated with major shear zones. The | |||
| mineralisation style is Iron-Oxide Copper | |||
| Gold (IOCG). The closest example of this | |||
| style is the Ernest Henry Deposit to the | |||
| north of Cloncurry. | |||
| Drill hole | • A summary of all information material to the | • | See Collar Table below |
| Information | understanding of the exploration results | ||
| including a tabulation of the following | |||
| information for all Material drill holes: | |||
o easting and northing of the drill hole collar |
|||
o elevation or RL (Reduced Level – |
|||
| elevation above sea level in metres) of the | |||
| drill hole collar | |||
o dip and azimuth of the hole |
|||
o down hole length and interception depth |
|||
o hole length. |
12
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| • 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 | • In reporting Exploration Results, weighting | • | Summary intersections are length |
| aggregation | averaging techniques, maximum and/or | weighted averages of assay data using | |
| methods | minimum grade truncations (eg cutting of high | nominal 1000ppm Cu cut offs. | |
| grades) and cut-off grades are usually | |||
| Material and should be stated. | |||
| • Where aggregate intercepts incorporate short | |||
| lengths of high grade results and longer | |||
| lengths of low grade results, the procedure | |||
| used for such aggregation should be stated | |||
| and some typical examples of such | |||
| aggregations should be shown in detail. | |||
| • The assumptions used for any reporting of | |||
| metal equivalent values should be clearly | |||
| stated. | |||
| Relationship | • These relationships are particularly important | • | The Elaine Dorothy mineralisation strikes |
| between | in the reporting of Exploration Results. | at 30oazimuth with a steep southeast | |
| mineralisation widths and intercept lengths |
• If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. • If it is not known and only the down hole |
dip. Drill holes have typically been drilled towards the northwest and north, generally at 60-75oto intersect the mineralisation at 30-50o |
|
| lengths are reported, there should be a clear | • | Drill holes testing the Blue Caesar, | |
| statement to this effect (eg ‘down hole length, | Jubilee, Native Companion and Brolga | ||
| true width not known’). | are believed to be transverse to mineral | ||
| trends and almost perpendicular to dip | |||
| Diagrams | • Appropriate maps and sections (with scales) | • | Refer to the release. |
| and tabulations of intercepts should be | |||
| included for any significant discovery being | |||
| reported These should include, but not be | |||
| limited to a plan view of drill hole collar | |||
| locations and appropriate sectional views. | |||
| Balanced | • Where comprehensive reporting of all | • | All holes which have been drilled at the |
| reporting | Exploration Results is not practicable, | relevant prospects are shown on the | |
| representative reporting of both low and high | attached figures. | ||
| grades and/or widths should be practiced to | • | All compiled rock chip sampling is shown | |
| avoid misleading reporting of Exploration | on the attached figures and significant | ||
| Results. | results are highlighted. | ||
| • | Similarly soil sampling undertaken at | ||
| Elaine Dorothy, Blue Caesar, Jubilee, | |||
| Native Companion and Brolga are shown | |||
| in their entirety. | |||
| Other | • Other exploration data, if meaningful and | • | Refer to the release. |
| substantive | material, should be reported including (but not | ||
| exploration | limited to): geological observations; | ||
| data | geophysical survey results; geochemical | ||
| survey results; bulk samples – size and | |||
| method of treatment; metallurgical test | |||
| results; bulk density, groundwater, | |||
| geotechnical and rock characteristics; | |||
| potential deleterious or contaminating | |||
| substances. |
13
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Further work | • The nature and scale of planned further work | • | Soil sampling of the southern portion of |
| (eg tests for lateral extensions or depth | the Native Companion-Brolga trend, | ||
| extensions or large-scale step-out drilling). | extensions to the Jubilee and Elaine- | ||
| • Diagrams clearly highlighting the areas of | Dorothy trend and various IOCG targets. | ||
| possible extensions, including the main | • | IP geophysical survey for Native | |
| geological interpretations and future drilling | Companion-Brolga area | ||
| areas, provided this information is not | • | Follow-up drilling for Native Companion, | |
| commercially sensitive. | Brolga, Elaine-Dorothy and Blue Caesar | ||
| is planned for 2015. |
14
Drill Hole Collar Data
| Hole ID | Prospect | East (GDA94 Zone 54) |
North (GDA94 Zone 54) |
RL | Collar Azi (GDA94 Zone 54) |
Collar Dip |
Total Depth (m) |
|---|---|---|---|---|---|---|---|
| ED001 | Elaine | 398341.6 | 7699385.6 | 425.6 | 0 | -90 | 61.00 |
| ED002 | Elaine | 398313.0 | 7699405.0 | 417.7 | 0 | -90 | 68.00 |
| ED003 | Elaine | 398294.0 | 7699426.0 | 417.0 | 0 | -90 | 106.00 |
| ED004 | Elaine | 398295.5 | 7699399.0 | 414.7 | 0 | -90 | 39.00 |
| ED005 | Elaine | 398348.0 | 7699406.0 | 426.7 | 166 | -60 | 49.00 |
| ED006 | Elaine | 398922.0 | 7698912.2 | 415.3 | 205 | -60 | 64.00 |
| ED007 | Elaine | 398903.2 | 7698919.2 | 415.2 | 205 | -60 | 35.00 |
| ED008 | Elaine | 399027.5 | 7698811.2 | 419.8 | 205 | -60 | 72.00 |
| ED009 | Elaine | 399142.2 | 7698508.5 | 451.6 | 205 | -60 | 46.00 |
| ED010 | Elaine | 399259.0 | 7698535.9 | 433.3 | 205 | -60 | 76.00 |
| ED011 | Elaine | 398261.0 | 7699435.0 | 415.0 | 0 | -90 | 122.00 |
| ED012 | Elaine | 398286.2 | 7699519.0 | 442.8 | 177 | -73 | 272.50 |
| ED013 | Elaine | 398332.5 | 7699471.4 | 430.9 | 177 | -70 | 166.00 |
| ED014 | Elaine | 398232.0 | 7699515.0 | 444.0 | 177 | -75 | 212.00 |
| ED015 | Elaine | 398899.4 | 7698962.7 | 422.7 | 205 | -56 | 160.00 |
| ED016 | Elaine | 398186.0 | 7699530.6 | 448.1 | 177 | -49 | 187.40 |
| ED017 | Elaine | 398185.9 | 7699530.8 | 448.5 | 177 | -75 | 274.90 |
| ED018 | Elaine | 398228.7 | 7699569.1 | 449.0 | 177 | -84 | 322.50 |
| EP001 | Elaine | 398128.7 | 7699488.0 | 417.6 | 177 | -70 | 184.00 |
| EP002 | Elaine | 398956.4 | 7698729.3 | 459.9 | 0 | -90 | 100.00 |
| EP003 | Elaine | 398933.8 | 7698648.3 | 447.7 | 25 | -60 | 140.00 |
| EP004 | Elaine | 398053.4 | 7699539.3 | 388.7 | 177 | -70 | 130.00 |
| EP005 | Elaine | 399294.7 | 7698550.7 | 432.3 | 205 | -65 | 146.00 |
| EP006 | Elaine | 399025.2 | 7698625.6 | 452.5 | 0 | -90 | 100.00 |
| EP007 | Elaine | 399057.6 | 7698512.9 | 446.1 | 231 | -70 | 122.00 |
| EP008 | Elaine | 399102.0 | 7698638.5 | 448.0 | 205 | -80 | 100.00 |
| EP009 | Elaine | 398955.2 | 7698790.4 | 445.8 | 0 | -90 | 100.00 |
| EP010 | Elaine | 398692.1 | 7698932.8 | 432.1 | 0 | -90 | 110.00 |
| EP011 | Elaine | 399019.7 | 7698863.0 | 414.9 | 205 | -60 | 120.00 |
| EP012 | Elaine | 398946.6 | 7698963.2 | 405.3 | 205 | -60 | 160.00 |
| MKBC001 | Blue Caesar | 397696.0 | 7700002.0 | 383.0 | 221 | -60 | 216.36 |
| MKBC002 | Blue Caesar | 397644.0 | 7700097.0 | 381.0 | 216 | -60 | 234.34 |
| MKBC003 | Blue Caesar | 397749.0 | 7700009.0 | 380.0 | 85 | -60 | 200.29 |
| MKBC004 | Blue Caesar | 397651.0 | 7700100.0 | 0.0 | 0 | -90 | 197.80 |
| MKBC005 | Blue Caesar | 397646.0 | 7700102.0 | 0.0 | 265 | -60 | 225.31 |
| MKBC006 | Blue Caesar | 397769.0 | 7700094.0 | 402.0 | 221 | -60 | 258.12 |
| MKBC007 | Blue Caesar | 397318.0 | 7699926.0 | 370.0 | 22 | -60 | 189.22 |
| MKBC008 | Blue Caesar | 397457.0 | 7700240.0 | 384.0 | 221 | -60 | 213.36 |
15
| Hole ID | Prospect | East (GDA94 Zone 54) |
North (GDA94 Zone 54) |
RL | Collar Azi (GDA94 Zone 54) |
Collar Dip |
Total Depth (m) |
|---|---|---|---|---|---|---|---|
| MKED001 | Elaine | 398259.1 | 7699443.8 | 416.5 | 0 | -90 | 133.69 |
| MKED002 | Elaine | 398296.3 | 7699436.8 | 417.7 | 0 | -90 | 125.60 |
| MKED003 | Elaine | 398315.7 | 7699399.3 | 418.9 | 0 | -90 | 75.60 |
| MKED004 | Elaine | 398054.3 | 7699540.1 | 388.4 | 177 | -70 | 207.80 |
| MKED005 | Elaine | 398228.3 | 7699522.1 | 444.8 | 177 | -75 | 267.10 |
| MKED006 | Elaine | 398189.9 | 7699536.6 | 449.1 | 177 | -60 | 299.90 |
| MKED007 | Elaine | 398201.9 | 7699551.0 | 450.0 | 332 | -75 | 825.90 |
| MKED008 | Elaine | 398127.0 | 7699502.0 | 418.0 | 325.5 | -60 | 604.60 |
| MKED009 | Elaine | 398122.9 | 7699506.3 | 417.9 | 10 | -56 | 657.40 |
| MKED010 | Elaine | 398122.6 | 7699504.7 | 417.8 | 7 | -66 | 528.75 |
| MKED011 | Elaine | 398055.2 | 7699622.2 | 388.3 | 3 | -67 | 531.30 |
| MKED012 | Elaine | 398095.0 | 7699705.0 | 387.0 | 350 | -66 | 14.80 |
| MKED013 | Elaine | 398096.1 | 7699707.5 | 385.3 | 350 | -66 | 339.60 |
| MKED014 | Elaine | 398149.1 | 7699719.2 | 384.9 | 1 | -70 | 420.50 |
| MKED015 | Elaine | 397965.3 | 7699618.9 | 370.6 | 358 | -60 | 438.30 |
| MKED016 | Elaine | 398055.3 | 7699618.1 | 388.2 | 306 | -75 | 762.40 |
| MKED017 | Elaine | 398225.0 | 7699570.0 | 450.0 | 354 | -60 | 7.90 |
| MKED018 | Elaine | 398227.6 | 7699572.8 | 449.3 | 354 | -60 | 735.30 |
| MKED019 | Elaine | 398119.6 | 7699444.8 | 408.6 | 334 | -69 | 822.70 |
| MKED020 | Elaine | 398235.2 | 7699530.8 | 445.3 | 338 | -70 | 474.50 |
| MKED021 | Elaine | 398499.7 | 7699638.1 | 389.7 | 295 | -60 | 711.80 |
| MKED022 | Elaine | 398491.4 | 7699650.8 | 390.2 | 312 | -62 | 725.90 |
| MKED023 | Elaine | 398225.3 | 7699571.0 | 449.3 | 328 | -73 | 891.70 |
| MKED024 | Elaine 2 | 399012.1 | 7698873.6 | 423.0 | 205 | -60 | 150.60 |
| MKED025 | Elaine 3 | 399262.8 | 7698526.8 | 441.0 | 0 | -90 | 114.80 |
| MKED026 | Elaine | 398055.7 | 7699618.4 | 388.3 | 310 | -60 | 294.60 |
| MKED027 | Elaine 2 | 398962.0 | 7698719.0 | 465.0 | 0 | -90 | 114.60 |
| MKED028 | Elaine | 398695.0 | 7698938.0 | 446.0 | 180 | -60 | 156.40 |
| MKED029 | Elaine | 398122.5 | 7699440.1 | 408.9 | 285 | -70 | 633.80 |
| MKED030 | Elaine | 399265.0 | 7698884.0 | 466.0 | 236 | -60 | 189.40 |
| MKED031 | Elaine | 398121.3 | 7699438.8 | 408.9 | 270.5 | -50 | 329.80 |
| MKED032 | Elaine | 398105.0 | 7699475.3 | 411.7 | 290 | -65 | 16.80 |
| MKED033 | Elaine | 398105.5 | 7699475.1 | 411.7 | 290 | -65 | 18.50 |
| MKED034 | Elaine | 398107.1 | 7699475.2 | 411.7 | 305 | -65 | 432.30 |
| MKED035 | Elaine 2 | 398537.0 | 7698740.0 | 404.0 | 296 | -60 | 169.20 |
| MKED036 | Elaine | 398095.0 | 7699705.0 | 385.0 | 6 | -90 | 896.98 |
| MKRC001 | Elaine | 398344.7 | 7699413.4 | 426.7 | 210 | -60 | 132.00 |
| MKRC002 | Elaine | 398344.9 | 7699414.9 | 426.6 | 226 | -80 | 138.00 |
| MKRC003 | Elaine | 398346.2 | 7699444.9 | 427.9 | 250 | -60 | 132.00 |
16
| Hole ID | Prospect | East (GDA94 Zone 54) |
North (GDA94 Zone 54) |
RL | Collar Azi (GDA94 Zone 54) |
Collar Dip |
Total Depth (m) |
|---|---|---|---|---|---|---|---|
| MKRC004 | Elaine | 398344.3 | 7699443.9 | 427.0 | 236 | -70 | 126.00 |
| MKRC005 | Elaine | 398493.8 | 7699290.5 | 403.3 | 216 | -60 | 96.00 |
| MKRC029 | Elaine | 398284.8 | 7699554.0 | 447.6 | 179.4 | -80 | 300.00 |
| MKWB001 | Elaine | 398415.3 | 7699779.0 | 386.1 | 0 | -90 | 35.00 |
| Q-018 | Blue Caesar | 397602.0 | 7700191.0 | 384.0 | 237 | -59.05 | 106.00 |
| Q-019 | Jubilee | 396680.0 | 7700037.0 | 356.0 | 71 | -60.36 | 70.00 |
| Q-020 | Jubilee | 396649.0 | 7700031.0 | 364.0 | 70 | -60.12 | 112.00 |
| Q-021 | Blue Caesar | 397682.0 | 7700221.0 | 377.0 | 256 | -70 | 145.00 |
| Q-022 | Blue Caesar | 397766.0 | 7700113.0 | 394.0 | 256 | -80 | 162.00 |
| Q-023 | Jubilee | 396604.0 | 7700230.0 | 375.0 | 76 | -60 | 90.00 |
| Q-024 | Jubilee | 396567.0 | 7700224.0 | 359.0 | 76 | -60 | 144.00 |
| Q-025 | Jubilee | 396634.0 | 7700135.0 | 370.0 | 76 | -60 | 90.00 |
| Q-026 | Jubilee | 396599.0 | 7700126.0 | 366.0 | 76 | -60 | 138.00 |
| Q-027 | Jubilee | 396617.0 | 7700025.0 | 358.0 | 76 | -60 | 144.00 |
| Q-028 | Jubilee | 396634.0 | 7699927.0 | 366.0 | 75 | -60 | 108.00 |
| Q-029 | Jubilee | 396596.0 | 7699925.0 | 363.0 | 76 | -60 | 129.00 |
| Q-030 | Jubilee | 396643.0 | 7699839.0 | 348.0 | 75 | -60 | 108.00 |
| Q-031 | Jubilee | 396608.0 | 7699838.0 | 348.0 | 74 | -60 | 174.00 |
| Q-032 | Native Companion | 413730.0 | 7741854.0 | 202.0 | 86 | -60 | 106.00 |
| Q-033 | Native Companion | 413833.0 | 7741344.0 | 201.0 | 276 | -60 | 90.00 |
| Q-034 | Native Companion | 414003.0 | 7741204.0 | 210.0 | 271 | -60 | 102.00 |
| Q-035 | Native Companion | 413615.0 | 7740188.0 | 211.0 | 259 | -60 | 138.00 |
| Q-036 | Brolga | 413700.0 | 7736748.0 | 227.0 | 87 | -60 | 102.00 |
| Q-037 | Brolga | 414034.0 | 7736754.0 | 233.0 | 86 | -60 | 96.00 |
| Q-038 | Jubilee | 396479.0 | 7700209.0 | 351.0 | 76 | -60 | 180.00 |
| Q-039 | Jubilee | 396575.0 | 7700019.0 | 361.0 | 76 | -60 | 276.00 |
| Q-040 | Jubilee | 396575.0 | 7700019.0 | 361.0 | 76 | -60 | 204.00 |
| Q-041 | Jubilee | 396536.0 | 7700016.0 | 347.0 | 76 | -65 | 318.00 |
| Q-042 | Jubilee | 396564.0 | 7699835.0 | 349.0 | 76 | -60 | 270.00 |
| Q-043 | Jubilee | 396533.0 | 7699822.0 | 354.0 | 77 | -57 | 354.00 |
| Q-044 | Jubilee | 396562.0 | 7699920.0 | 343.0 | 77 | -60 | 204.00 |
| Q-045 | Jubilee | 396561.0 | 7700120.0 | 373.0 | 78 | -55 | 172.00 |
17