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METALS AUSTRALIA LTD — Capital/Financing Update 2017
Feb 26, 2017
65344_rns_2017-02-26_fb73809a-07ec-4485-9a8c-d18f8efc9e11.pdf
Capital/Financing Update
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ASX Announceme
27 February 2017
Strong EM Conductors Confirm New Geological Interpretation at Manindi
Highlights:
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MND057 drilled above (up-dip) from the previously defined resource at Kultarr has returned 18.85m @ 5.08% Zinc from 59.60m (including 5.48m @ 8.05% Zinc) and 7.2M @1.31% Zinc from 119m
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Downhole EM surveying of holes MND057 and MND055 at Kultarr, together with reinterpretation of previously flown VTEM, have identified a large conductive body located on or adjacent to the newly interpreted FelsicMafic contact
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This newly identified conductor (“C1”) is parallel to (but separate from) the existing Manindi resource and is approximately 350m long. It sits on the Felsic-Mafic contact approximately 20 – 30m away from the existing resource and has not previously been drilled. C1 is in a stratigraphically higher position than the current Manindi JORC resource, (1,075,859 tonne at 6.52% Zn at 2% Zn cutoff). It represents significant upside tonnage potential for the existing Manindi resource
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MND055 drilled near the base of the current Manindi resource model intersected 8.31 m at 4.47% Zinc from 143.85m downhole. This is significant as it shows the current Manindi resource continues to exist at depth
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Another EM Conductor, (“C2”), has also been identified at Kultarr North. This new conductor is approximately 150m long and also sits on the Felsic-Mafic contact. It is approximately 500m NW along strike from the Kultarr resource area
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C2 has not been drill tested Being along strike from the Kultarr resource, it provides a completely new untested zone of potential mineralisation with a high probability for further tonnage
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Zinc prices have jumped to their highest in more than eight years. The price of zinc has almost doubled from a six-and-a-half-year low of US$1,444.50 in January 2016
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The completed holes have also intersected a number of intervals of anomalous values of Cobalt including MND054 which intersected 1310ppm Co from 72.15m to 72.30m and MND057 which intersected 1030ppm Co from 66.24m to 67m
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The existence of Cobalt mineralisation within the drill holes will be investigated further by MLS geologists to ascertain the main source of the mineralisation. The current drill program was not designed to target Cobalt mineralisation, MLS will be investigating the potential sources of this mineralisation
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MLS is continuing to review additional project opportunities within Australia and internationally with a focus on Zinc, Graphite, Lithium and Cobalt
Diversif i ed metals e xploration c ompany, M e tals Austr a lia Ltd (AS X : MLS ) is p l eased to p r ovide an update o n the results of the fir s t phase dr i lling progr a m that has been com p leted at the Manindi Project.
Commenting on th e initial results, Director of Metals A u stralia, Gino D’Anna s t ated:
“ T he initial r e sults from t he drilling a t Manindi h ave identifi e d some a d ditional zo n es o f zinc mine r alisation w h ich appear to be clos e ly related t o the Felsi c -Mafic cont a ct u n its. We ar e currently planning ou r next drillin g program at Manindi, t a rgeting th e se p r imary zone s of mineral i sation.
Our drilling has defined a new zon e of minera l isation at K ultarr on t h e Felsic-M a fic c o ntact. This contact ha s not been p reviously d r illed. A 35 0 m long E M conductor on t h e Felsic-M a fic contact h as been i d entified an d represent s an outsta n ding target for zinc minerali s ation.
“ N ot only ha v e we proven the mine r alised structure extend s at Kultarr, we have a l so i d entified a l a rge EM co n ductor at K ultarr North which is al o ng strike o f the main o re b o dy, and ha s not been a dequately d rill tested. O ur geologi s ts are bus y reviewing t he d a ta and pla n ning some drill holes i n to this targ e t.
F i nally, our drilling has also inter s ected multiple interv a ls of ano m alous Co b alt m ineralisatio n , with values as high as 1310p p m Co within MND054 . Although we d i dn’t target Cobalt mineralisation a s part of o ur drill ca m paign, th e results h a ve indicated that this warr a nts further investigation to identif y the main source of t he Cobalt miner a lisation.”
350m long EM Conductor Discovered Parallel To The Existing Resource
Downh o le EM surv e ying of dia m ond drill holes MND0 5 5 and MN D 057 in the region of the Kultarr resourc e area toge t her with re m odelling of previous V T EM data h a s identifie d a strong 3 5 0m long EM conductive body (“C1”), a b out 20m-3 0 m away and parallel t o the existi n g Manindi r esource, sitting on the Felsic-Mafic cont a ct (See Figures 1, 2 a n d 3).
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( Figure 1 – 3D model of K ultarr showing historical drilli n g, current resource outline in g reen and new EM conductor t arget C1 in red on the felsic-mafic co n tact. Also sho w s location of t h e Kultarr North conductor targ e t C2)
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( Figure 2 – 3D model of Kultarr North l o oking north s h owing historic a l drilling, curre n t resource ou t line in green a n d new EM conductor target C2 in or a nge located 5 0 0m NW of Kult a rr resource on the felsic-mafi c contact.
C1 is a p proximatel y 350m lon g and is loc a ted SE al o ng strike fr o m the dee p er zinc mi n eralised zone in MND057 (Figure 1). The deep e r semi-massive zinc mineralise d zone, in MND057 returne d 7.2m @ 1.31% Zinc from 119 m . This hol e did not in t ersect con d uctor C1. T he zinc mineralised zone i s hosted within a frag m ental Felsi c unit which is charact e ristically pr o ximal to volcano g enic massive sulphid e (VMS). T h e zone sit s stratigrap h ically high e r in the fel s ic rocks than th e existing M anindi res o urce. This new zinc m ineralisati o n sits in a similar str a tigraphic position to other b a se metal sulphide de p osits in th e Yilgarn Cr a ton, partic u larly Gold e n Grove near Y a lgoo to the west of M a nindi, and T eutonic B o re-Jaguar in the East e rn Goldfiel d s to the east of M anindi.
Conduc t or C1 run s SE for approximately 350m co m mencing S E along str i ke from th e deeper mineralised zone i n MND057. MND057 did not pass through Conductor C1 but sits to t he north of C1 ( F igure 3), w h ich is now t he highest p riority drill t arget at M a nindi. Furt h er drilling is planned in the n e ar future.
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( Figure 3 – 3D model o f Kultarr and Kultarr North lo o king from abo v e showing his t orical drilling, c urrent resource outline in green and new EM cond u ctor target C1 in red and new E M conductor C 2 in orange lo c ated 500m N W of Kultarr res o urce on the felsic-mafi c contact)
At Kult a rr North pr e vious VT E M data wa s re-modell e d (Figures 2 and 3). The result s show a strong s teep SW di p ping cond u ctor 150m l ong locate d approximately 500m N W along strike from the Kult a rr resourc e . As can b e seen in Fi g ure 2 previous drilling has compl e tely misse d this EM conductor and it re m ains totall y untested. Kultarr Nor t h represen t s a high pr i ority drill target as it sits rig h t on the fel s ic-mafic c o ntact and h as a high p robability o f adding fu r ther tonna g e to the Manindi resource b a se. Furthe r drilling is p lanned for this target in the near fu t ure.
Better Geological Understanding
The Co m pany drill e d two hole s , MND055 and MND0 5 7, in the r e gion of the existing mi n eralised zone at Kultarr with the aim of gaining a b e tter geological unders t anding of t h e setting o f the zinc mineralisation and t est for potential extens i ons of the c urrent reso u rce.
The dril l ing at Kult a rr has hist o rically bee n oriented i n a NE-SW direction at an approxi m ate 60degree dip. This d rilling was mainly foc u sed on te s ting what now appe a r to be re m obilised second a ry zones o f massive zi n c sulphide mineralisat i on within the footwall m afic rocks. MND055 and MND057 have increased t h e underst a nding of th e geological setting an d structure a t Kultarr. It is no w understo o d that the interprete d main sou r ce of zinc mineralisation, from where the second a ry remobilised sulphi d es were s o urced fro m , sits pote n tially on o r above th e contact betwee n the felsic and the m a fic units, w ithin the felsic rocks. T his shows that the majority of historic a l drilling should have b een orient e d in a SW-NE directio n . No histor i cal drill hol e s in the vicinity o f the EM c o nductor C1 have pass e d into the f e lsic seque n ce from th e mafic.
Diamond hole MND055 was designed to test for zinc mineralisation near the base of the existing resource and pass through the interpreted felsic-mafic contact. The hole intersected semi massive sulphide mineralisation near the base of the current resource adjacent to the felsic-mafic contact returning 8.31m @ 4.47% Zinc from 143.85m downhole. This is significant as it shows that the current Manindi resource continues to exist at depth.
Diamond hole MND057 was drilled to test for shallower up-dip extensions to the resource. It too was designed to pass through the felsic-mafic contact. The hole intersected two semi massive to massive sulphide zinc mineralised zones returning 18.85m @ 5.08% Zinc from 59.60m, ( including 5.48m @ 8.05% Zinc from 69.20m), and 7.20m @ 1.31% Zinc from 119m.
This enhanced geological understanding and fresh approach to the geological setting of the zinc mineralisation at Kultarr has delivered early success in the discovery of the new zinc mineralised zone and the new strong EM Conductor C1 in the felsic rock units outside the existing resource base. This new work has greatly increased the potential to delineate additional tonnage, and suggests that there could be significant potential for further mineralised zones in the region of the current defined resource area.
Follow-up drill campaigns will be heavily focused on testing the felsic rock sequence for additional mineralised zones along strike and beneath the existing resource at Kultarr and along the newly discovered zone. Future drill holes will be oriented in a SW-NE direction at an approximate -60degree dip, targeting what is interpreted to be the main source of zinc mineralisation within the felsic rocks.
The interpreted stacking of the mineralised zones within the felsics at Manindi is common to VMS style deposits, and is similar to other VMS deposits in the Yilgarn Craton such as Golden Grove.
The current JORC resource (1,075,859 tonnes at 6.52% Zn at 2% Zn cutoff) which has been defined at Kultarr, remains open both along strike and down dip.
Regional Exploration Drilling
Three wildcat diamond holes were drilled at Kaluta, Ningbing and a new target called Fold Nose, to test ground EM conductors, all well outside the current resource areas. One hole was drilled into each target.
MND053 was drilled at Kaluta to a depth of 186.4m. The hole intersected a thick sequence of gabbro containing a fractionated layer of Pyroxenite from 140m to 159m downhole. This layer contained a zone of disseminated and blebby sulphides from 148.75m to 154.43m. Only anomalous results of nickel and copper were returned from this sulphide zone with grades up to 1690ppm nickel and 1190ppm copper, but no zinc. Downhole EM survey results indicate MND053 had actually missed the conductor and that a strong off hole response was located 40m to the east. This target has potential for nickel and copper mineralisation. It sits below a large surface nickel and copper geochemical anomaly. A follow up hole has been designed to test this strong off hole conductor. This target will be drilled in the near future.
MND054 was drilled at Ningbing. The hole was drilled to a depth of 126.30m. The hole intersected gabbro containing a fractionated layer of pyroxenite from 60m to 84.20m downhole. The pyroxenite contained two zones of heavy disseminated to matrix sulphides from 65.18m and 75.40m – 81.82m. Both zones contained anomalous nickel and copper, but no zinc.
Down hole EM surveying of the hole showed an EM conductor off hole approximately 50 metres away down dip. Though the drilling did not intersect this conductor it is not intended to drill this target further at this time. A further hole may be drilled at a future time.
MND056 was drilled at Fold Nose. The hole contained a thick sequence of gabbro and dolerite with several layers of fractionated pyroxenite and was drilled to a depth of 150.50m. No significant sulphide was observed.
Cobalt Mineralisation Intersected
The completed holes have also intersected a number of intervals of anomalous values of Cobalt including MND054 which intersected 1310ppm Co from 72.15m to 72.30m and MND057 which intersected 1030ppm Co from 66.24m to 67m.
The existence of Cobalt mineralisation within the drill holes will be investigated further by MLS geologists to ascertain the main source of the mineralisation. The current drill program was not designed to target Cobalt mineralisation.
The following Cobalt results are currently being reviewed by MLS with a view to furthering our understanding of the geology and setting of the Cobalt mineralisation and its source:
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MND053 intersected 765ppm Co from 119.4m to 119.6m
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MND054 intersected:
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865ppm Co from 67m to 67.73m
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650ppm Co from 68.08m to 68.6m
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570ppm Co from 69.39m to 70m
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1310ppm Co from 72.15m to 72.3m
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510ppm Co from 75.4m to 75.66m
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MND056 intersected 520ppm Co from 81.43m to 81.65m
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MND057 intersected:
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1030ppm Co from 66.24m to 67m
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555ppm Co from 69.20m to 70m
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610ppm Co from 94.2m to 94.7m
Although the intersections of the Cobalt mineralisation are thin, the existence of the Cobalt mineralisation demonstrates that the Cobalt is present at Manindi. This current drill program did not target Cobalt mineralisation, as it had previously not been a focus.
Cobalt is a key input in the manufacture of Lithium-ion batteries with the price of Cobalt increasing sharply in response to global demand for more efficient energy storage solutions, via Lithium-ion batteries.
Summary
The Company is extremely pleased with the results of the drilling at Kultarr and the discovery of Conductors C1 and C2.
The Company believes that the existing resource base at Manindi (being 1,075,859 tonnes at 6.52% Zinc grade at 2% Zn cut off) should be able to be substantially increased in tonnage by further drilling.
Previous detailed metallurgical test work carried out by the Company has demonstrated that Manindi ore is easily treated by conventional crush/grind and flotation to achieve excellent recovery to produce a saleable concentrate.
Metals looks forward to continuing its drilling campaign at Manindi focused on substantially increasing the resource base in the near future.
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Figure 4: - Manindi VTE M imagery and t a rget map sho w ing highest pri o rity targets
For more information, please contact:
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Gino D’ A nna Directo r Metals A ustralia Lt d M: +61 4 00 408 87 8
Competent Person Statement
The inf o rmation in this annou n cement relating to g e ology, expl o ration res u lts and th e mineral resourc e estimate i s based on information compiled b y Mr Dean G oodwin, w h o is a con s ultant to Metals A ustralia Ltd. Mr Goo d win is a m ember of T he Australian Institute of Geosci e ntists, a Recognised Profes s ional Orga n isation by t he Australi a n Joint Or e Reserves C ommittee, and has sufficie n t experien c e relevan t to the s t yle of mineralisation and types of deposi t s under consideration and to the activity which is b eing under t aken to qu a lify as a C o mpetent Person as defined in the 201 2 edition of t he Joint O r e Reserve s Committe e (JORC) A u stralasian Code for Reporti n g of Exploration Resul t s. Mr Goodwin consen t s to the inclusion in thi s presentation of the matters based on his informati o n in the for m and cont e xt in which it appears.
JORC TABLE 1
Section 1 – Sample Techniques and Data
| Criteria | Explanation |
|---|---|
| Sampling techniques | Sampling includes core Exploration results are based on industry best practices, including sampling, assay methods, and appropriate quality assurance quality control (QAQC) measures. Diamond core sampling was cut to ½ core with sampling breaks adjusted to geological boundaries. The assay method was 4 acid digest with ICPES. 33 standards were recorded in total. 14 lab Duplicates were recorded. An airborne Versatile Time‐Domain Electromagnetic (VTEM) survey was complete over the Manindi Zinc Project in 2012 using 100m spaced survey lines. Downhole Time‐domain Electromagnetic (DHTEM) surveys were conducted in drill‐holes MND055 and MND057 in 2017 using 5 and 10m station spacing. |
| Drilling techniques | Diamond core size is HQ at the start of the holes and changed to NQ2 through the mineralised zone. All coordinates are quoted in GDA94 datum unless otherwise stated. |
| Drill sample recovery | The quality of analytical results was monitored by the use of internal laboratory procedures together with the use of certified standards, duplicates and blanks to ensure that results were representative and within acceptable ranges of accuracy and precision. |
| Logging | All logging was completed according to industry standard practice. Logging was completed using standard logging templates... The resulting data is uploaded to a Datashed database and validated. Once validated, the data is exported to modelling software for visual validation and interpretation. |
| Sub‐ sampling techniques and sample preparation |
For all sample types, the nature, quality and appropriateness of the sample preparation technique is considered suitable as per industry best practice. |
| Quality of assay data and laboratory tests |
The samples have been sorted, dried, crushed and pulverised. Primary preparation has been by crushing the whole sample. Laboratories inserted their own standards and blanks at random intervals and to confirm high grade results. |
| Verification of sampling and assaying |
All significant intercepts are reviewed and confirmed by senior personnel before release to the market. All data is validated using the QAQCr reporter validation tool with Datashed. Visual validations are then carried out by senior staff members. All EM survey data are recorded digitally and sent in electronic format to Southern Geoscience Consultants for quality control and evaluation |
| Location of data points | Station positions were recorded with GPS system with expected accuracy of +/‐ 5m horizontal and +/ 10m vertical. Radar‐altitude data are used to calculate mean terrain clearance of airborne survey platforms. Topographic control is based on GPS heights and radar‐altimeter data from airborne magnetic and electromagnetic surveys. The Grid system used is GDA94 datum, MGA zone 50 projection Down hole surveys were done for all holes with Single Shot Reflex |
| Data spacing and distribution |
Diamond drill hole samples were composited to a nominal 1.0 m down‐hole intervals for resource modelling. |
| Orientation of data in relation to geological structure |
Orientation of sampling is as unbiased as possible based on the dominating mineralised structures and interpretation of the deposit geometry. If structure and geometry is not well understood, sampling is orientated to be perpendicular to the general strike of stratigraphy and/or regional structure. If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this would be assessed and reported if considered material. Drilling is at an angle to surface and is drilled to maximise perpendicular intersection with the known interpretation of the strike of previously intersected mineralisation. |
| Sample security | All samples remain in the custody of company geologists, and are fully supervised from point of field collection to laboratory drop‐off. |
| Audits and reviews | None yet undertaken for this dataset. |
Section 2 – Reporting of Exploration Results
| Criteria | Explanation |
|---|---|
| Mineral, tenement and land tenure status |
The Company controls an 80% Interest in three granted Mining Licences in Western Australia covering the known mineralisation and surrounding area. The licences are M57/227, M57/240 and M57/533. The licence reports and expenditure are all in good standing at the time of reporting. There are no known impediments with respect to operate in the area. |
| Exploration done by other parties |
The deposits were identified by WMC in the early 1970s and have been extensively explored using surface and geophysical techniques prior to drilling. Mapping and soil geochemistry preceded airborne and surface geophysical technique being applied to the project. The project has been drilled in 8 separate drill programs since 1971, with 389 holes having been completed. These include 109 diamond drillholes, 105 RC drillholes, 169 RAB drillholes and 8 percussion holes (. The deposits have never been mined. |
| Geology | The mineralisation at Manindi is hosted within an Archaean felsic and mafic volcanic sequence. The sequence has been extensively deformed by regional metamorphism and structural event related to the Youanmi Fault and emplacement of the Youanmi gabbro intrusion and other later granitic phases. The Manindi zinc‐copper mineralisation is considered to be a volcanogenic massive sulphide (VMS) zinc deposit, comprising a series of lenses of zinc‐dominated mineralisation that have been folded, sheared, faulted, and possibly intruded by later dolerite and gabbro. |
| Drillholeinformation | All relevant drillhole information is supplied in Appendix 2 and 3 of the announcement. |
| Data aggregation methods |
All exploration results are reported by a length weighted average. This ensures that short lengths of high grade material receive less weighting than longer lengths of low grade material. A cut‐off grade has been applied to the data. In the case of data contained in Appendix 3 and the construction of mineralised envelopes using 3‐D modelling software, a 0.5% Zn cut‐off was used. The cut‐off was chosen as it reflects a distinction between mineralised and un‐mineralised material. |
| Relationship between mineralisation widths and intercept lengths |
The mineralisation at Manindi is complex in nature but confined to a series of approximately N‐S striking zones located east of a gabbroic intrusion. The overall zone of lower grade mineralisation appears to be strata‐bound following the complex N‐S stratigraphy. Higher grade zones of zinc mineralisation are located within the lower grade envelope and these have more varying orientations. Overall the zone is steeply dipping to the west, A majority of the holes drilled to date dip steeply to the west and as such intersect the mineralisation at low angles. A smaller portion of the holes are drilled towards the east and intersect the mineralisation at high angles, resulting in close to true thickness intersections |
| Diagrams | A series of relevant diagrams are included in the body of the announcement. |
| Balanced reporting | Information relating to geophysical, geochemical and metallurgical test work is included in the announcement. Laboratory assay results are included for composite intersections above a 0.5% Zn cut‐off which represents the outlines of mineralised vs unmineralised material at Manindi. |
| Other substantive exploration data |
This announcement contains the results of airborne and downhole geophysical surveys as follows; Airborne Versatile Time‐Domain Electromagnetic (VTEM) Survey (GEOTECH – March 2012) 75m and 100m line spacing and 42m mean terrain clearance 25 Hz Base Frequency Peak dipole moment 392,887 NIA Z and X component dBdt and B field datasets Down‐hole Time‐domain Electromagnetic (DHTEM) Survey (GEM Geophysics) 5m and 10m station spacing 200m x 200m TX Loop, 35A TX current SmarTEM 24 Receiver Zonge ZT‐30 Transmitter BH‐43 Coil Sensor A, U and V component readings at each station |
| Further work | Plans for further work are outlined in the body of the announcement |
Appendix 1 – Manindi Drilling Collars
| Hole_ID | Hole_Type | Depth | Dip | Azimuth | Grid_ID | East | North | RL |
|---|---|---|---|---|---|---|---|---|
| MND053 | DD | 186.4 | -60 | 360 | MGA94_51 | 667716 | 6815230 | 488 |
| MND054 | DD | 126.3 | -60 | 350 | MGA94_51 | 666237 | 6815639 | 493 |
| MND055 | DD | 206.2 | -60 | 242 | MGA94_51 | 663303 | 6819128 | 503 |
| MND056 | DD | 150.5 | -60 | 270 | MGA94_51 | 664080 | 6818605 | 494 |
| MND057 | DD | 158.4 | -50 | 240 | MGA94_51 | 663280 | 6819116 | 505 |
Appendix 2 ‐ Manindi Drill Intersections
Zinc
| Hole_ID | mFrom | mTo | Intercept | Zn |
|---|---|---|---|---|
| MND055 | 143.85 | 152.16 | 8.31m @ | 4.47% |
| MND057 | 59.6 | 78.45 | 18.85m @ | 5.08% |
| MND057 | 119 | 126.2 | 7.2m @ | 1.31% |
Cobalt
| Hole_ID | mFrom | mTo | Intercept | Co |
|---|---|---|---|---|
| MND053 | 119.4 | 119.6 | 0.2m @ | 756ppm |
| MND054 | 67 | 67.73 | 0.73m @ | 865ppm |
| MND054 | 68.08 | 68.6 | 0.52m @ | 650ppm |
| MND054 | 69.39 | 70 | 0.61m @ | 570ppm |
| MND054 | 72.15 | 72.3 | 0.15m @ | 1310ppm |
| MND054 | 75.4 | 75.66 | 0.26m @ | 510ppm |
| MND056 | 81.43 | 81.65 | 0.22m @ | 520ppm |
| MND057 | 66.24 | 67 | 0.76m @ | 1030ppm |
| MND057 | 69.20 | 70 | 0.8m @ | 555ppm |
| MND057 | 94.2 | 94.7 | 0.5m @ | 610ppm |