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PREDICTIVE DISCOVERY LIMITED — Regulatory Filings 2021
Jun 30, 2021
65537_rns_2021-06-30_d20fbb49-ee09-4fb7-8236-bf7d4af1a213.pdf
Regulatory Filings
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ASX: PDI | 1[st] July 2021
44M @ 8G/T GOLD – HIGHEST IMPACT GOLD INTERCEPT AT BANKAN PROJECT
Predictive Discovery Limited (ASX: PDI, Predictive or the Company) is pleased to announce results from four Diamond Drill (DD) holes (totalling 1,060m), from its Bankan Project, located in Guinea.
NE BANKAN
Drilling on section 1175020N has intersected broad zones of high-grade gold at depth, including:
-
BNEDD0085: 44m @ 8.0g/t Au from 265m, including:
-
17m @ 18.1g/t Au from 273m
-
BNEDD0086: 12.3m @ 6.7g/t Au from 338m, including:
-
3.9m @ 14.4g/t Au from 340m
BANKAN CREEK
Two shallow DD holes have intersected high-grade gold mineralisation, adding further support to the continuity of the mineralised zones and additional ounces to the Maiden Resource Estimate due in the September Quarter. Better intersections included:
-
BCKDD0008: 15m @ 4.0g/t Au from 48m, including:
-
3m @ 12.5g/t Au from 56m
-
BCKDD0016: 12m @ 5.0g/t Au from 30m, including:
2m @ 24.1g/t Au from 37m
“These outstanding new results are further confirmation of the continuity and grade of the NE Bankan and Bankan Creek gold deposits. The intersection of 44m at 8.0g/t Au from around 240m vertical depth is an absolute standout, better than any intercept we have obtained so far in the deposit. Following these high impact holes, we have four more deep DD holes yet to report at NE Bankan. Deep drilling results on adjacent sections are also delivering very good widths and grades between 200m and 300m vertical depth.
Infill diamond drilling is ongoing at Bankan Creek, with the last holes planned for completion midJuly. Following receipt and interpretation of the last results, the Company will move onto the Maiden Resource estimation, in keeping with our September Quarter timetable.” – said Managing Director Paul Roberts.
ASX: PDI | 1[st] July 2021
Predictive Discovery Limited (ASX: PDI, Predictive or the Company) is pleased to announce new results from four Diamond Drill (DD) holes (totalling 1,060m), completed at its Bankan Project, located in Guinea.
The Company has made two significant gold discoveries have within the past 15 months. The new results from both the NE Bankan and Bankan Creek prospects are shown in Figures 1-5, with significant results listed in Table 1 and drill data collection information documented in Table 2.
NE Bankan drilling
New step-out DD-holes BNEDD0085 and BNEDD0086 were completed on section 1175020N (Figures 1 to 3) at the southern end of the Central Gold Mineralised Zone, with high-grade gold mineralisation intersected at approximately 240m vertical depth, returning 44m @ 8.0g/t Au from 265m including a very high-grade intersection of 17m @ 18.1 g/t Au from 274m.
Hole-to-hole continuity is a striking feature of the cross sections in the Central Gold Mineralised Zone (Figures 2 and 3). The continuity of sub-parallel zones of gold mineralisation on section 1175020N has now extended the deposit on this section over 400m downdip from surface, with potential for further extensions to the west at depth.
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Figure 1- NE Bankan Cross section 1175020N showing new DD holes BNEDD0085 and BNEDD0086 (red result labels).
ASX: PDI | 1[st] July 2021
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Figure 2 - Longitudinal Projection showing location of new diamond drill results (red result labels).
ASX: PDI | 1[st] July 2021
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Figure 3 - NE Bankan plan view showing collars of west-to-east RC/DD holes (only). This plan highlights the strength of the gold mineralised system, especially within the Central Gold Mineralised zone where most aggregate true widths exceed 50m. All superimposed on a plan view of the power auger gold anomaly.
ASX: PDI | 1[st] July 2021
Bankan Creek drilling
Infill resource drilling is continuing at the Bankan Creek gold deposit, which is located just 3km west of the NE Bankan deposit. Two DD-holes are reported here, both of which intersected highgrade gold at shallow depths. Hole BCKDD0016 returned 12m @ 5.0g/t Au from 30m, including 2m @ 24.1g/t Au from 37m and BCKDD0008 returned 15m @ 4.0g/t Au from 48m, including 3m @ 12.5g/t Au from 56m.
These results confirm earlier intercepts and reinforce the Company’s belief that this prospect will contribute significantly to the planned Maiden Resource Estimate.
Drilling is being carried out on 40m spaced lines with a 40m-80m hole spacing along lines (Figure 4). The drilling planned for the Maiden Resource Estimate is planned for completion in mid-July. Mineralisation at Bankan Creek currently extends for approximately 300m along strike and remains open to depth and to the south.
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Figure 2 - Bankan Creek plan view showing results DD holes BCKDD0008 and BCKDD0016 overlain on the power auger and trench defined gold anomaly.
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ASX: PDI | 1 [st] July 2021
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Figure 3 - Bankan Cross section showing new DD hole BCKDD0016 (red result labels).
Next Steps
NE Bankan Diamond Drilling completed with assays pending from four holes to be received.
Diamond Drilling is ongoing at Bankan Creek. One multipurpose RC-DD drill rig will continue operating throughout the rainy season, drilling both in the immediate vicinity of the known gold deposits and testing new targets identified from the ongoing auger program.
-END-
ASX: PDI | 1[st] July 2021
Predictive advises that it is not aware of any new information or data that materially affects the exploration results contained in this announcement.
This announcement is authorised for release by Predictive Managing Director, Paul Roberts.
For further information please contact:
Paul Roberts
Managing Director
Tel: +61 402 857 249
Email: [email protected]
COMPETENT PERSONS STATEMENT
The exploration results reported herein are based on information compiled by Mr Paul Roberts (Fellow of the Australian Institute of Geoscientists). Mr Roberts is a full-time employee of the company and has sufficient experience relevant to the style of mineralisation and type of deposits being considered to qualify as a Competent Person as defined by the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Roberts consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
ABOUT PREDICTIVE
The Company’s primary focus is the 100%-owned Bankan Project, located in Guinea’s Siguiri Basin, which hosts AngloGold’s large Siguiri Mine (+10Moz). In April 2020, the Company made a greenfields gold discovery on its Kaninko permit, now known as the Bankan Project.
Bankan comprises 4 tenements - Kaninko, Saman, Argo and Bokoro – a 358km[2 ] land package with no previous drilling undertaken. A 25,000-meter drilling program is currently underway with the aim of delivering an initial resource in the September Quarter, 2021.
ASX: PDI | 1[st] July 2021
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Figure 4 - Predictive Discovery’s 100%-owned Guinea Portfolio of gold projects
ASX: PDI | 1[st] July 2021
TABLE 1 – NE BANKAN & BANKAN CREEK DIAMOND DRILL RESULTS
| Hole No. | Prospect | UTM 29N East |
UTM 29N North |
RL (GPS) |
Hole azimuth |
Hole dip |
Hole depth |
0.25g/t gold cut-off | 0.25g/t gold cut-off | 0.25g/t gold cut-off | Comments |
|---|---|---|---|---|---|---|---|---|---|---|---|
| From | Interval (true widths) |
Au g/t |
|||||||||
| BNEDD0085 | Bankan NE | 396433 | 1175008.9 | 418 | 90 | -55 | 420.10 | 13.0 | 1.0 | 1.57 | |
| 30.1 | 1.9 | 2.55 | |||||||||
| 265.0 | 7.99 | Incl. 5m @ 5.91g/t Au from | |||||||||
| 44.0 | |||||||||||
| 265m and 17m @18.15g/t Au | |||||||||||
| (41.8) | |||||||||||
| from 273m | |||||||||||
| 316.0 | 3.0 (2.9) | 0.39 | |||||||||
| 322.0 | 4.0 (3.8) | 0.45 | |||||||||
| 329.0 | 8.0 (7.6) |
1.48 | |||||||||
| 342.0 | 2.0 (1.9) | 0.74 | |||||||||
| 353.0 | 4.0 (3.8) | 0.49 | |||||||||
| 360.0 | 2.0 (1.9) | 0.42 | |||||||||
| 368.0 | 1.0 (1.0) | 1.00 | |||||||||
| 387.0 | 3.0 (2.9) | 2.13 | Incl. 1m @ 5.75g/t Au from 389m |
||||||||
| 414.0 | 0.9 (0.9) | 2.40 | |||||||||
| BNEDD0086 | Bankan NE | 396341 | 1175020 | 420 | 85.5 | -55 | 460 | 329.0 | 4.0 (4.0) | 0.40 | |
| 338.0 | 12.3 (12.3) |
6.74 | Incl. 3.9m @ 14.38 g/t Au from 340.1m |
||||||||
| 352.8 | 11.2 (11.2) |
0.89 | Incl. 1m@ 4.05g/t Au from 363m |
||||||||
| 370.0 | 17.0 (17.0) |
0.45 | |||||||||
| 395.6 | 1.4 (1.4) | 0.73 | |||||||||
| 408.0 | 4.0 (4.0) | 0.93 | Incl. 1m @ 3.06g/t Au from 411m |
||||||||
| 418.0 | 17.0 (17.0) |
0.69 | |||||||||
| 451.0 | 5.0 (5.0) | 0.50 | |||||||||
| BCKDD0008 | Bankan Creek |
393565 | 1174025 | 373 | 65 | -55 | 90.00 | 0.0 | 4.0 | 0.37 | |
| 8.0 | 3.0 | 0.44 | |||||||||
| 13.5 | 10.5 | 0.52 | Incl. 1m core loss | ||||||||
| 30.0 | 7.0 | 0.36 | |||||||||
| 40.0 | 1.0 | 3.05 | |||||||||
| 48.0 | 4.02 | Incl. 3m @ 12.56g/t Au from | |||||||||
| 15.0 | |||||||||||
| 56m | |||||||||||
| BCKDD0016 | Bankan Creek |
393490 | 1174123 | 372 | 60 | -55 | 90.00 | 9.0 | 2.0 | 0.60 | |
| 30.0 | 5.02 | Incl. 6m @ 9.30g/t Au from | |||||||||
| 12.0 | 36m (which includes 2m @ |
||||||||||
| 24.1g/t Au) | |||||||||||
| 47.0 | 10.0 | 0.94 | |||||||||
| 62.0 | 13.0 | 0.42 |
ASX: PDI | 1[st] July 2021
TABLE 2 - JORC CODE – DIAMOND DRILLING
Section 1: Sampling Techniques and Data
| TABLE 2 - JORC CODE – DIAMOND DRILLING | TABLE 2 - JORC CODE – DIAMOND DRILLING | TABLE 2 - JORC CODE – DIAMOND DRILLING |
|---|---|---|
| Section 1: Sampling Techniques and Data | ||
| Criteria | JORC Code Explanation |
Commentary |
| Sampling Technique |
Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as downhole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling 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 (eg ‘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 (eg submarine nodules) may warrant disclosure of detailed information. |
Samples assayed were cut drill core. Core was cut in half with a core saw where competent and with a knife in soft saprolite in the upper sections of the diamond drill holes. Sampling was supervised by qualified geologists. Samples were dried, crushed and pulverised at the SGS laboratory in Bamako to produce a 50g fire assay charge. |
| Drilling | Drill type (eg core, reverse circulation, open- hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg 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). |
Drill types were 2 multipurpose drill rigs and one dedicated diamond drill rig, all of which are capable of collecting PQ, HQ and NQ core. One of the multipurpose rigs was being used for RC drilling using a 118mm diameter reverse circulation hammer but is now only drilling NQ diameter core. All core is orientated using Reflex digital system. |
| 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. |
Drill core: Sample recoveries were measured in the normal way for diamond drill core. Core recoveries were generally excellent except for the saprolite where some core loss was experienced owing to clayey core being washed out in the diamond drilling process. Given that most of these saprolite core loss zones were obtained in mineralised intervals, grade is probably underestimated in those sections as zones of core loss are assumed to contain no gold. Significant sample bias is not expected with cut core. |
ASX: PDI | 1[st] July 2021
| Logging | Whether core and chip samples have been geologically and geotechnical 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/Trench, channel, etc) photography. The total length and percentage of the relevant intersections logged. |
All drill samples were logged systematically for lithology, weathering, alteration, veining, structure and minor minerals. Minor minerals were estimated quantitively. A core orientation device was employed enabling orientated structural measurements to be taken. |
|---|---|---|
| Sub-Sampling Technique and Sample Preparation |
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 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 the grain size of the material being sampled. |
The diamond drill samples were collected by longitudinally splitting core using a core saw or a knife where core was very soft and clayey. Half of the core was sent off to the laboratory for assay. The sampling method is considered adequate for a diamond drilling program of this type. |
| 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 (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established. |
All samples were assayed by SGS technique FAA505 for gold with a detection limit of 5ppb Au. All samples with gold values exceeding 10g/t Au were re-assayed using SGS method FAA515 with a detection limit of 0.01g/t Au. Field duplicates, standards and blank samples were each submitted for every 15 samples on a rotating basis. Diamond core field duplicates were obtained by cutting the half core sample into two quarter core samples. As samples are not homogenised some variation is expected. Duplicate and standards analyses were all returned were within acceptable limits of expected values. |
| Verification of Sampling and Assaying |
The verification of significant intersections by either independent or alternative company personnel. The use of twinned holes The verification of significant intersections by either independent or alternative company personnel. Discuss any adjustment to assay data |
At this stage, the intersections have not been verified independently. Some partial twin holes have been reported previously, specifically where initial RC precollars (named BNERC*) were not able to be re-entered by the diamond rig resulting in a second hole being drilled within 5m and named BNERDA. Both BNERC and the completed BNERD*A holes therefore have the same hole number (eg. BNERC0005 and BNERD0005A). These holes are sufficiently close to a previously drilled holes to provide confirmation of the location of mineralisation. In addition, KKODD002 was drilled close to aircore hole KKOAC001 and demonstrated that similar, consistent gold mineralisation was present in the near surface. |
| Location of Data points |
Accuracy and quality of surveysused tolocate drill holes (collar and down- hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. |
Drill hole collar locations were recorded at the completion of each hole by hand-held GPS. Positional data was recorded in projection WGS84 Zone 29N. |
ASX: PDI | 1[st] July 2021
|||ASX: PDI | 1stJuly 2|
|---|---|---|
||Specification of the grid system used
Quality
and
adequacy
of
topographic control|Hole locations will be re-surveyed using a digital GPS system at
completion of program.|
|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|The diamond and RC drill holes were designed to explore the gold
mineralised system in fresh rock. A series of DD holes are in the
process of being drilled on most 80m spaced sections in the 1.3km long
zone tested previously with RC drilling.
The Company believes that the drill hole spacings being employed at
NE Bankan and Bankan Creek will be sufficient for Mineral Resource
estimation however this will be determined by the independent
Competent Person who will assess if a sufficient understanding of
mineralisation continuity has been established.|
|Orientation of
Data in Relation
to Geological
Structure|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
structures is considered to have
introduced a sampling bias, this
should be assessed and reported if
material.|There is very limited outcrop in the immediate area but based on the
small number of geological observations and the overall strike of the
anomaly, an east west line orientation with holes inclined to the west was
considered most likely to test the target mineralised zone. Results from
earlier drilling has now determined that the overall dip of the gold
mineralised envelope is to the west at NE Bankan and to the west-south-
west at Bankan Creek. All drill holes reported in this release were drilled
from west to east (at NE Bankan) or from west-south-west to east-north-
east (at Bankan Creek) to obtain near-true widths through the intersected
gold mineralisation.|
|Sample Security|The measures taken to ensure
sample security|Core trays are stored in a guarded location close to the nearby Bankan
Village. Coarse rejects and pulps will be eventually recovered from SGS in
Bamako and stored at Predictive’s field office in Kouroussa.|
|Audits or Reviews|The results of any audits or reviews
of sampling techniques and data|No reviews or audits of sampling techniques were conducted.|
|Section 2 Reporting of Exploration Results|||
|Mineral
Tenement and
Land Tenure
Status|Type, reference name/number,
location and ownership including
agreements or material issues with
third partiessuch asjoint 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 Bankan Gold Project comprises 4 exploration permits, Kaninko
(PDI 100%), Saman (PDI 100%), Bokoro (PDI 100%) and Argo JV (right
to earn 100% in JV with local partner). Licences are held by Predictive
subsidiaries in Guinea or in a joint venture structure.|
|Exploration
Done by Other
Parties|Acknowledgment and appraisal
of exploration by other parties.|Predictive is not aware of any significant previous gold exploration over
the permit.|
|Geology|Deposit type, geological setting
and style of mineralisation.|The geology of the Kaninko permit consists of felsic intrusives
including granite and tonalite, with mafic to intermediate volcanics
and intrusives. Metasediments including marble, chert and schists
have also been observed.|
|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|See Table 1 and the accompanying notes in this table.|
ASX: PDI | 1[st] July 2021
|||ASX: PDI | 1stJuly 2|
|---|---|---|
||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 (eg 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 clearlystated.|Diamond drill sampling was generally in one metre intervals.
Up to 2m (down-hole) of internal waste is included for results reported at
the 0.25g/t Au cut-off grades.
Mineralised intervals are reported on a weighted average basis.|
|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
(eg ‘down hole length, true width
not known’).|True widths have been estimated for intercepts where mineralisation
orientation is reasonably clear.|
|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.|Appropriate maps, cross sections and a longitudinal projection
are included in this release (Figures 1-5).|
|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.|Comprehensive reporting of the drill results is provided in Table 1.|
|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.|All other exploration data on this area has been reported previously by
PDI.|
|Further Work|The nature and scale of planned
further work (eg tests for lateral
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.|These results form part of a large ongoing program of RC and diamond
drilling. Geological studies will continue to be conducted to
characterise the gold mineralisation going forward.|