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DEVELOP GLOBAL LIMITED — Regulatory Filings 2017
Oct 8, 2017
64801_rns_2017-10-08_6c16b5e2-eb78-4761-9857-c2767246dd17.pdf
Regulatory Filings
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Spectacular High-Grade Copper Intercept in First Diamond Hole at Sulphur Springs
Thick high-grade interval of 14m @ 5.98% Cu
Highlights
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Hole SSD089 returned 38.2m @ 3.49% Cu from 97.8m down-hole including a higher copper grade interval of 14m @ 5.98% Cu from 111m (Note: intervals are reported as down-hole intersection widths)
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Gold and silver intersected in the RC pre-collar of SSD089 assayed 8.6m @ 1.9g/t Au and 186g/t Ag from 69m within the interpreted gossan zone (Note: intervals are reported as down-hole intersection widths)
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Two further holes (SSD090 and SSD091) have been completed, each intersecting significant widths of semi-massive to massive sulphides and visible copper sulphide minerals
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Visible chalcocite mineralisation observed in SSD090
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Fourth diamond hole currently in progress
Venturex Resources (ASX: VXR) is pleased to announce that the first diamond drill hole in its ongoing drilling programme at the 100%-owned Sulphur Springs Copper-Zinc Project, 144km south of Port Hedland in WA, has returned a spectacular thick intercept of high-grade copper mineralisation.
The outstanding assay results for hole SSD089 provide an exceptional start to the programme:
- 38.2m @ 3.49% Cu from 97.8m down-hole including a high grade interval of:
o 14m @ 5.98% Cu from 111m
(Note: intervals are reported as down-hole intersection widths)
Since the completion of SSD089, a further two holes have been completed (SSD090 and SSD091) and the fourth hole in the programme is currently in progress.
The current drill programme is designed to test mineralisation amenable to open pit mining up-dip from the known VMS mineralisation and to provide samples for metallurgical test-work. Details of the drill holes are contained in Table 1 and further technical descriptions are provided below.
Drill-hole details
Hole SSD089: was drilled vertically through the siliceous hanging wall sequence with an initial RC pre-collar to a depth of 76.1m.
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ASX Announcement
ASX Code: VXR
Released: 9th October 2017
For further details
Anthony Reilly
Executive Director
T: +61 8 6389 7400
[email protected]
Board
Tony Kiernan
Chairman
Anthony Reilly
Executive Director
Darren Stralow
Non-Executive Director
Trevor Hart
Company Secretary
Contact Details
Registered Office
Level 2
91 Havelock Street
West Perth WA 6005
T: +61 8 6389 7400
F: +61 8 9463 7836
[email protected]
www.venturexresources.com
ABN: 28 122 180 205
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Diamond core of PQ size was then drilled to 120m and then reduced to HQ3 until the end-of-hole at 153.7m. A total of 40m of massive sulphides (from 98 to 138m) was intersected with visible chalcopyrite evident within the majority of the pyrite host.
Copper assays returned from this interval are 38.2m at 3.49% copper from 97.8m to 136.0m and this includes a copper-rich sequence from 111m to 125m giving a down-hole intercept of 14m @ 5.98% Cu . The highest copper value of 9.31% Cu was from 120m to 121m. The RC pre-collar and the start of the PQ core intersected gold mineralisation of 8.6m @ 1.9g/t Au and 186g/t Ag hosted by a gossanous sedimentary unit from 69m to 77.6m (see Figure 1 below).
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Figure 1: Cross-section on section 728840mN
Note: intervals are reported as down-hole intersection widths and not true widths.
Hole SSD090: was drilled on the same section as SSD089 but angled at -81˚ to the south with percussion RC through the hanging wall siliceous sequence. The drilling method was changed at 93.7m to permit coring with HQ3 to the end-of-hole at 135.7m.
This hole intersected 29.3m of semi-massive to massive sulphide from 93.7m to 123.0m with zones of massive and sooty chalcocite encountered from 102.1m to 107.6m (Figure 2) .
This drill-hole terminated in a felsic volcanic sequence containing up to 20% disseminated sulphide which may be related to a footwall feeder system. This represents a further exploration opportunity to follow up at a later date.
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Figure 2: Core photo from SSD090 showing chalcocite (dark grey-black) from 102.7m and underlying massive sulphide with sooty chalcocite on joints and in-filling voids.
Hole SSD091: was drilled towards the south at -78˚on a section 20m to the west of the previous two drill holes. A 101m RC pre-collar was drilled through the siliceous hanging wall sequence; diamond coring to 141.5m returned 17.3m of semi-massive to massive sulphides . The drill hole terminated in strongly silica-chlorite altered felsic volcanic rocks at 141.5m.
RC and core samples from SSD090 and SSD091 have been cut and sent for assay.
The fourth hole in the programme, SSD092, is being drilled on the same section as SSD091 but angled at -85˚to the north and drilling is currently ongoing.
Management Comment
Venturex’s Executive Director Anthony Reilly said: “The assay results from SSD089 are truly spectacular and help to validate the strong economic potential of the Sulphur Springs development opportunity, as outlined in the Value Engineering Study announced in February 2017. We look forward to the ongoing results as the drill programme continues to evaluate the near-surface mineralisation up-dip from the known VMS mineralisation at depth.”
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“In the meantime, a field team is on site today at the Whim Creek Project to begin our evaluation of the conglomerate-hosted gold potential along strike from the recent Loudens Patch discovery.
“With the ongoing base metal drilling programme and an ongoing review of the gold potential at Whim Creek, investors can look forward to strong news-flow from the Company.”
Table 1: Tabulation of Drill results
| Hole | Easting | Northing | RL | Az | Dip | EOH | Interval | Cu % |
Au g/t |
Ag g/t |
Comment |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SSD089 | 728840 | 7659663 | 344 | Vertical | -90 | 153.7m | 38.2m | 3.49 | - | - | - |
| SSD089 | 8.6m | - | 1.9 | 186 | - | ||||||
| SSD090 | 728840 | 7659663 | 344 | 180 | -81 | 135.7m | TBA | - | - | - | At labs |
| SSD091 | 728820 | 7659663 | 344 | 180 | -78 | 141.5m | TBA | - | - | - | At labs |
| SSD092 | 728820 | 7659666 | 344 | 000 | -85 | In progress |
TBA | - | - | - | In progress |
Anthony Reilly Executive Director
For further information, please contact:
Investors Anthony Reilly / Trevor Hart Media: Venturex Resources Limited Nicholas Read – Read Corporate Ph: +61 (08) 6389 7400 Ph: (08) 9388 1474 Email: [email protected] Email: [email protected]
About Venturex Resources Limited
Venturex Resources Limited (ASX: VXR) is an exploration and development company with two advanced Copper Zinc Projects near Port Hedland in the Pilbara region of Western Australia. The two projects are the Sulphur Springs Project which includes the Sulphur Springs Project, Kangaroos Caves Resource plus 27km of prospective tenements on the Panorama trend and the Whim Creek Project which includes the Resources at the Whim Creek, Mons Cupri and Salt Creek mines together with the Evelyn project and 18,100 ha of prospective tenements over the Whim Creek basin. Our strategy is to work with our partners Blackrock Metals to expand and extend the existing 4 tonne per day oxide copper heap leach and SXEW operation at Whim Creek, identify other near term production options at Whim Creek, Mons Cupri and Sulphur Springs and fully optimise the Sulphur Springs Project have it shovel ready to take advantage of forecast improvements in base metal prices.
Competency Statements
The information in this announcement that relates to Exploration Results is based on information compiled or reviewed by Mr Stefan Gawlinski who is employed as a Consultant to the Company. Mr Gawlinski is a member of the Australian Institute of Geoscientists. Mr Gawlinski has sufficient experience with the style of mineralisation and the type of deposit under consideration. Mr Gawlinski consents to the inclusion in the report of the results reported here and the form and context in which it appears.
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Section 1 Sampling Techniques and Data
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| Sampling techniques |
Nature and quality of sampling (e.g. cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc.). These examples should not be taken as limiting the broad meaning of sampling. Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. Aspects of the determination of mineralisation that are Material to the Public Report. In cases where ‘industry standard’ work has been done this would be relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types(e.g. submarine nodules) may warrant disclosure of detailed information. |
Current Drilling A combination of RC and Diamond drilling is being used to test the Sulphur Springs deposit. The company uses industry standard practices to measure and mark up the drill core. Quarter diamond core is to be submitted to the laboratory for analysis |
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| Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, face- sampling bit or other type, whether core is oriented and if so, by what method, etc.). |
Current Drilling RC pre-collars followed by a combination of PQ3 and HQ3 diamond tail. All diamond core is stored in industry standard core trays labelled with the drill hole ID and core interval. |
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| Drill sample recovery |
Method of recording and assessing core and chip sample recoveries and results assessed. Measures taken to maximise sample recovery and ensure representative nature of the samples. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. |
Current Drilling Diamond core recoveries are recorded as a percentage of the measured core vs the drilling interval. Core loss locations are recorded on core blocks by the drilling crew. Diamond core was reconstructed into continuous runs where possible and metres checked against the depth as recorded on core blocks by the drilling crew. |
|
| Logging | Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) photography. The total length and percentage of the relevant intersections logged. |
Current Drilling RC and Diamond drill core is geologically logged for the total length of the hole using a graphic logging method. All core is photographed and images are stored in the company database. Logging routinely recorded weathering, lithology, mineralogy, mineralization, structure, alteration and veining. Logs are coded using the company geological coding legend and entered into the company database. |
|
| Sub-sampling techniques and sample |
If core, whether cut or sawn and whether quarter, half or all core taken. If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry. For all sample types, the nature, quality and appropriateness of the sample preparation |
Current Drilling Drill core is cut by an automatic Almomte™ core saw and a quarter is sent for assay. RC cuttings are split using a riffle splitter and the one metre samples from 10m interval above the mineralised zone are individuallysubmitted for assay. Four-metre composite samples are taken |
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| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| preparation | technique. Quality control procedures adopted for all sub-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 thegrain size of the material being sampled. |
using a PVC tube through the hangingwall sequence; the one metre composite samples returning anomalous values will be submitted to elucidate the mineralisation. |
|
| Quality of assay data and laboratory tests |
The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. For geophysical tools, spectrometers, handheld XRF instruments, etc., the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc. Nature of quality control procedures adopted (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established. |
Current Drilling The bulk density of the quarter drill core used for assay was determined by Venturex personnel on- site using the wet and dry method. Samples from the current drilling programme were assayed by Australian Laboratory Services Pty. Ltd. Composite and one metre RC samples and quarter core samples were prepared and analysed by the following methods: Samples weighed, crushed and pulverised with the coarse residue retained in vacuum seal bags. Cu, Pb, Zn, S, Fe and Ag analysed by method ME-OG62 and Au by fire assay method Au-AA25. The company included certified reference material and blanks with the samples submitted. |
|
| Verification of sampling and assaying |
The verification of significant intersections by either independent or alternative company personnel. The use of twinned holes. Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. Discuss any adjustment to assay data. |
Current Drilling The significant intersections reported have been prepared by geologists with relevant VMS experience. No twinned holes have been drilled. The company uses standard templates created in Excel to collate sample intervals, drill collar, downhole survey information which are emailed to the company main office were the information is loaded into a database. Geological descriptions are recorded in long hand prior to being summarised for digital data capture. |
|
| Location of data points |
Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. Specification of the grid system used. Quality and adequacy of topographic control. |
Current Drilling Drill hole collars were located using a DGPS operated by company personnel. Diamond drill holes are down-hole surveyed by a gyro every 30m. |
|
| Data spacing and distribution |
Data spacing for reporting of Exploration Results. Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. Whether sample compositing has been applied. |
Current Drilling Drill hole SSD089 is the first hole within the current Sulphur Springs infill programme. Drill holes are to be drilled on nominal 20m section spacings. |
|
| Orientation of data in relation to geological |
Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. If the relationship between the drilling orientation and the orientation of key mineralised |
Current Drilling Drill holes are designed to test the Sulphur Springs orebody which plunges at ~40-50 degrees to the north. SSD089 was drilled vertically, SSD090 was drilled close to SSD089 and angled at-81˚ to the |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| structure | structures is considered to have introduced a sampling bias, this should be assessed and reported if material. |
south, SSD091 and SSD092 drilled 20m to the west with SSD091 angled at -81˚to the south and SSD092 angled at -85˚to the north. The drill holes have been designed to test near surface potential of sulphide mineralisation amenable to mining by open pit methods and are considered appropriate for the geometry of the deposit. |
| Sample security | The measures taken to ensure sample security. |
Drill core is stored on site at Sulphur Springs and at the end of the programme will be relocated to the Company’s Whim Creek coreyard. The samples are dispatched from Port Hedland to the assay laboratory in Perth. Online tracking is used to track the progress of batches of samples. |
| Audits or reviews | The results of any audits or reviews of sampling techniques and data. |
No reviews have been undertaken |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral tenement and land tenure status |
Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. 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. |
The Sulphur Springs deposit is located within M49/ 494. The registered owner of the tenements are Venturex Sulphur Springs Pty Ltd, a wholly owned subsidiary of Venturex Resources Ltd The tenement is within Njamal Native Title Claim (WC99/8) where native title has been determined. The traditional owners of the land are the Njamal People. The grant of the tenement predates native title, and is not subject to native title claim. The tenement is subject to two third party royalties on any production from the tenement. The tenement is agranted MiningLease ingood standingand no known impediments exist. |
| Exploration done by other parties |
Acknowledgment and appraisal of exploration by other parties. |
Previous exploration has been undertaken by a number of parties going back over 30 years. Modern exploration has been undertaken by Sipa Resources, CBH Resources, Homestake Mining, and Venturex Resources, |
| Geology | Deposit type, geological setting and style of mineralisation. |
The Sulphur Springs deposit is a Volcanogenic Massive Sulphide Deposit |
| Drill hole Information |
A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill 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 is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the |
Details of the drill holes are provided in Table 1 within the body of this report |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Competent Person should clearly explain why this is the case. | ||
| Data aggregation methods |
In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (e.g. cutting of high 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. |
Results reported in this release for SSD090 and 091 relate to visual observations of drill core, specifically the identification of common sulphide minerals. No estimate of grade or concentration of the minerals is provided. Results reported for SSD089 were determined by ALS Laboratories using method ME-OG 62 and fire assay Au-AA25. |
| Relationship between mineralisation widths and intercept lengths |
These relationships are particularly important in the reporting of Exploration Results. 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 lengths are reported, there should be a clear statement to this effect (e.g. ‘down hole length, true width not known’). |
The Sulphur Springs deposit plunges 40-50 degrees to the north; the drill holes are designed to intersect the orebody at a nominal 60 degrees although the local access and topography require certain holes to be designed taking these limitations into consideration to intersect the mineralisation. Only down hole intersections are reported |
| Diagrams | Appropriate maps and sections (with scales) 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. |
See cross-section within this announcement |
| Balanced reporting |
Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results. |
|
| Other substantive exploration data |
Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; 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. |
The Sulphur Springs deposit has had a significant body of work completed on it, including geophysical studies, metallurgical test work, geotechnical and ground water studies. |
| Further work | The nature and scale of planned further work (e.g. tests for lateral extensions or depth extensions or large-scale step-out drilling). Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive |
This announcement covers the first four drill holes in a Resource infill programme, designed to test the potential for near surface open-pittable material. Once the holes have been drilled, samples will be taken for follow up metallurgical test work. |
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