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PREDICTIVE DISCOVERY LIMITED — Interim / Quarterly Report 2014
Apr 29, 2014
65537_rns_2014-04-29_3e165bde-a4ec-47df-9093-28f7536852fa.pdf
Interim / Quarterly Report
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30[th] April 2014
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Quarterly Report for the Period Ended 31[st] March 2014
ASX
EXPLORATION
Announcement
Bongou, Burkina Faso:
Predictive Discovery Limited is a gold exploration company with strong technical capabilities focused on its advanced gold exploration projects in West Africa.
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2,600m reverse circulation & diamond drilling program at Bongou to follow up high-grade results. New results included:
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36.2m (33m true width) at 2.2/t Au from 181.8m, including:
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4.6m at 7.1g/t Au
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5.2m at 4.7g/t Au
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21.5m (19.5m true width) at 1.8/t Au from 313m, including:
- 4.8m at 3.8g/t Au
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19.6m (18.4m true width) at 1.1g/t Au from 235m, including:
ASX: PDI
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2.9m at 5.7g/t Au
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12m at 1.4g/t Au from 14m ( new prospect near Bongou )
Issued Capital: 388M shares Share Price: 1.3 cents
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Regional trenching and limited drill program completed on prospects surrounding Bongou encountered further Bongou-style mineralisation
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Follow-up program commenced
Market Capitalisation: $5M
Cote D’Ivoire
- Ferkessedougou BLEG survey generated four gold anomalous areas
Cash (at 31st March 2014): $1.6M
- First stage of Kokumbo work program carried out – data compilation, geological mapping and ground magnetic surveys
Planned June Quarter Exploration Program
Directors
Bongou:
Phillip Harman Non-Exec Chairman
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Power auger drilling program
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Trenching program to follow up gold anomalies
Paul Roberts Managing Director
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Plan next phase RC drilling program to follow up new trench results
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Re-logging Bongou core and trenching edges of Bongou deposit, in preparation for construction of 3D model of gold mineralisation
Phil Henty Non-Executive Director
Cote d’Ivoire:
Tim Markwell Non-Executive Director c
- Geological mapping and BLEG gold stream sediment geochemical sampling
CORPORATE
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Placement to sophisticated investors raised $1.1 million
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Share purchase plan completed, raising $0.3 million
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Shareholders passed all resolutions at Extraordinary General Meeting held 20 March.
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$1.6 million in cash 31[st] March 2014 and no debt
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INTRODUCTION
PDI’s major country focus is Burkina Faso, West Africa where it has established a well-qualified Burkina-based exploration team and a large regional tenement package mainly in the north-east of the country covering 1,605km[2] (Figure 1). The Company also holds four granted exploration permits in Cote D’Ivoire totalling 1,534km[2] (Figure 7).
The Company’s activities over the last 12 months have been increasingly focused on the Bongou Prospect and surrounding area in Burkina Faso, where a series of drilling programs has revealed high-grade gold mineralisation in altered granite and similar mineralisation nearby.
PDI’s tenement holding covers approximately 100km of strike length in the Samira Hill greenstone belt in eastern Burkina Faso (the Bonsiega permit group, Figure 1). This belt hosts the 2.5 million ounce Samira Hill gold deposit across the border in Niger and contains numerous active artisanal gold mine sites along its length (Figure 2). The Bangaba permit includes the largest known artisanal workings in the neighbouring Sebba Belt. PDI now owns 100% or rights to earn 95 to 100% of all its permits in Burkina Faso. PDI has discovered gold mineralisation on multiple prospects in its Eastern Burkina Faso project area during the past two years (e.g. Bongou, Dave, Laterite Hill, Solna and Tambiri – see Figure 1).
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Figure 1: Location of PDI permits in eastern Burkina Faso, showing key prospects (yellow dots), and highlighting the location of the Bongou Prospect. Pink is granite and green is greenstone.
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Figure 2: Geology of Bonsiega Project in eastern Burkina Faso, showing location of the Bongou Prospect with respect to the major Bongou Fault, and highlighting the abundance of artisanal workings throughout the area.
PROJECTS
Burkina Faso
Bongou Prospect (PDI 100%)
The high-grade Bongou gold discovery is located in the south-western portion of the Bonsiega Project tenements in Eastern Burkina Faso (Figures 1 and 2). It underlies artisanal workings forming an irregular open pit approximately 150m long and 50m wide. Exploration by PDI has included rock chip sampling, trenching, ground geophysical surveys and completion of 14 RC and diamond holes in 2012 and 2013 which obtained very encouraging drill intersections including[1] :
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68m (52m true width) at 3.2g/t Au from 99m, including:
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7.8m at 10.2g/t Au
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55m (47m true width) at 3.2 g/t Au from 215m, including:
1 Data for these results are provided in PDI’s ASX releases of 2nd December 2013 and 16th December 2013.
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o 24.5m at 4.9 g/t Au
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49m (41m true width) at 2.8g/t Au from 144m including:
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6m at 7.8g/t Au
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8m at 4.5g/t Au
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48m (39.6m true width) at 4.3g/t Au from 34m, including:
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16m at 9.7g/t Au
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64m (58m true width) at 2.0g/t Au from 14m including:
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5m at 7.3g/t Au
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37m (35.5m true width) at 5.0g/t Au from 111m, including:
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16m at 8.9g/t Au
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50m (42m true width) at 1.9g/t Au from 47m, including
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8m at 9.2g/t Au
PDI commenced a 2,600m combined reverse circulation (RC) and diamond drilling program on 10 February 2014 to follow up these results. The drilling aimed to extend the Bongou mineralisation at depth and to define the nature of its boundaries, as well as explore for similar granite-hosted gold mineralisation nearby. The program was completed on 11 March 2014. Drill hole locations are shown on Figures 5 and 6 and other details of the holes are provided in Table 1.
Results from holes within the Bongou mineralised zone included:
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36.2m (33m true width) at 2.2/t Au from 181.8m, including:
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4.6m at 7.1g/t Au
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5.2m at 4.7g/t Au
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21.5m (19.5m true width) at 1.8/t Au from 313m, including:
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4.8m at 3.8g/t Au
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8m (5.4m true width) at 2.44g/t Au from 179m
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19.6m (18.4m true width) at 1.1g/t Au from 235m, including:
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3m (2.8m true width) at 1.74g/t Au, and
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2.9m (2.8m true width) at 5.7g/t Au .
This program gave PDI a better understanding of the geology of the Bongou mineralisation:
- Gold mineralisation at Bongou is contained within intensely (silica-albite) altered, pyrite- and magnetite-bearing granite. The gold mineralisation is now interpreted to be contained in a simple, steeply plunging body constrained by major shearing in gabbro in the hanging wall and more massive basalt in the footwall.
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- The eastern edge of the mineralisation appears to be more gradational than was previously interpreted. While there is some evidence of fault movement at the eastern end, drill hole BNGRD012 shows that the mineralised granite “inter-fingers” with sheared gabbro in this area with the ratio of barren gabbro to gold mineralised granite generally increasing towards the east.
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Figure 3: Long Section through the Bongou gold mineralised body oriented at 065 degrees, showing true width drill intercepts of both the total gold mineralised body at a 0.5g/t Au cut-off and true widths of the higher grade hanging wall mineralisation calculated at a cut-off grade of 3g/t Au. Results of the low grade gold mineralisation were calculated at an approximate 0.2g/t Au cut-off grade. Data for these results are provided in Table 1 and PDI’s ASX releases of 2[nd] December 2013, 16[th] December 2013, 20[th] March 2014 and 1[st] April 2014. Note that once the trenching program on the eastern margin is complete, the interpreted shape of the mineralised granite body on this diagram is expected to change, at least in the near-surface.
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Figure 4: Drill hole locality plan, Bongou Prospect. Gold intercepts are all shown as estimated true widths. “Total” intercepts were calculated across the width of the gold mineralisation, irrespective of the width of internal waste zones, at a cut-off grade of 0.5g/t Au. Data for this diagram are provided in Table 1 and PDI’s ASX releases dated 2[nd] December 2013, 16[th] December 2013, 20[th] March 2014 and 1[st] April 2014.
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Figure 5: Cross Section through drill holes BNGRC010, BNGRD001, BNGRD003 and BNGRD005. No vertical exaggeration. Only down-hole widths are shown on this cross-section; estimated true widths are provided in Figures 3 and 4 and Table 1 (for BNGRD008R) and PDI’s ASX releases dated 2[nd] December 2013, 16[th] December 2013, 20[th] March 2014 and 1[st] April 2014.
PDI carried out a modest program of trenching and drilling in the area surrounding the Bongou Prospect in February-March 2014 (Figure 6). This was completed in conjunction with the combined reverse circulation (RC) and diamond drilling (DD) program at Bongou, and aimed to test several bedrock gold anomalies discovered in 2013.
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Bongou Prospect W1
The program at the Bongou W1 prospect, 250m west of the Bongou Prospect (Figure 6), consisted of trenching and drilling.
A 30m-long trench was completed beneath a power auger anomaly that had a peak value of 833ppb Au. The trench encountered sheared gabbro and minor quartz veining with minor pyrite. Channel sampling of the trench wall yielded 13m of 3.7g/t Au , with a peak value of 13.1g/t Au over 1.5m.
All of the best gold grades in the main Bongou mineralised zone have been found in altered granite. The presence of such strong gold grades in sheared gabbro is therefore a highly significant new result in the exploration of the Bongou area, opening up the potential for both gabbro- and granite-hosted gold deposits.
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Figure 6: Interpreted geological map of the area surrounding Bongou, highlighting many unexplored granite bodies under cover and showing the location of the previous and new power auger drilling. The locations of the granite bodies have been interpreted from samples with low Ti/Zr ratios in power auger samples, supported by mapping of the few granite outcrops in the area. The plus 40ppb Au anomalies outlined on the map are currently being followed up with trenching. Note the locations of prospects Bongou W1, W2 and E1 where reconnaissance RC drilling was carried out during the March Quarter. Assays are awaited from the new power auger lines (in blue)
Two drill holes, totalling 170m, were completed beneath the Bongou W1 Prospect trench. The first hole, BNGRC017, intersected gold anomalous values over a 19m interval of weathered, sheared gabbro, averaging 0.1g/t Au. The contrast between the high gold grades at surface and these low-grade values just 20m below suggests that there could be gold depletion in the weathered gabbro.
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A combined RC/DD hole was also drilled beneath BNGRC017 to test primary mineralisation. This hole, BNGRD013R, intersected sheared gabbro along with thin zones of siliceous alteration and coarse pyrite similar to mineralisation seen at the main Bongou Prospect but quite unlike any alteration seen in drill hole BNGRC017 or the overlying trench. Gold intercepts included:
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5.3m at 1.45g/t Au from 65.9m, including a peak value of 5.3g/t Au over 0.9m
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2.9m at 1.21g/t Au from 81.1m
This repetition of Bongou-style mineralisation with no surface expression directly along strike from Bongou itself shows that blind zones of similar style mineralisation are present in the area.
Bongou W2 Prospect
A single RC hole, BNGRC018, 72m deep, was drilled beneath a trench completed in the December Quarter (Figure 6). This trench, which was largely in altered granite containing minor disseminated pyrite, included a 13m zone with an average grade of 0.5g/t Au. BNGRC018 tested below that zone and intersected strongly altered granite including 12m at 1.44g/t Au from 14m including 2m at 4.3g/t Au .
This very encouraging single hole tested a bedrock gold anomaly which is approximately 300m long and just 600m from Bongou and clearly requires follow-up drilling.
This drill result also showed that surface sample gold values obtained from weathered granite can be deceptively low relative to gold grades at shallow depths below surface. The same observation has been made at Bongou. The 2013 drilling showed that modest channel sample gold values, averaging only 1g/t Au, in the artisanal open pit were underlain at shallow depths by much higher gold grades.
Bongou E1 Prospect
Two RC holes, totalling 168m, were completed to test across a 65m wide power auger anomaly with a peak value of 196ppb Au. They were located along strike from and 700m east of the Bongou Prospect (Figure 1). The drilling obtained two gold intercepts in sheared gabbro:
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BNGRC019: 7m at 0.64g/t Au from 58m
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BNGRC020: 3m at 1.64g/t Au from 80m
These results are further evidence of widespread gold mineralisation at Bongou which is now known to extend over at least 1.5km of strike.
Since 1 April, the Company has completed the first phase of its follow-up program aimed at:
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Finding more granite-hosted gold mineralisation within 2km of the Bongou deposit
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Trenching known gold anomalies
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- Re-logging the Bongou core and trenching across the margins of the Bongou deposit to map the mineralised granite’s margins in order to prepare for a possible resource calculation.
Progress since the 1 April announcement has included:
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An 842-hole power auger drilling program, totalling 3,447m (see Figure 6 for hole locations)
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Interpretation of hand-held XRF data of the power auger samples. This has identified many more Bongou-sized granite bodies under cover than previously recognised (Figure 6). This increases the potential to discover more Bongou-like gold mineralisation
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A trenching program to test five target gold anomalies, which is in progress
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Trenching around the edges of the Bongou deposit. This has shown that altered granite extends at least 30m further east than previously mapped
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Re-logging of the Bongou core, in preparation for construction of a 3D model of the mineralisation.
Planned Exploration Activities June 2014 Quarter – Burkina Faso
The June Quarter work program will focus on the Bongou area.
The March Quarter drilling program on the main Bongou mineralised zone was aimed at identifying potential open pittable high-grade resources. With the completion of this drilling, PDI’s attention has now turned to the gold anomalies shown on Figure 6, close to the Bongou discovery.
PDI’s recent work has also shown that a combination of granite and sheared gabbro/granite within 1km of the Bongou Fault is highly prospective. The Company has already recognised multiple targets containing these characteristics near Bongou and expects to find more as bedrock drilling through the thin cover continues in the months ahead.
Power auger and trench assay results are expected by early May. A round of infill power auger drilling and follow-up trenching will commence immediately thereafter with the aim of identifying RC drill targets by late May.
Results of the core re-logging and the current trenching activities at Bongou will be incorporated into a 3D geological model in May. A decision will then be made whether a formal resource calculation is warranted.
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Cote d’Ivoire
Background
Detailed work on Cote d’Ivoire data sets has led PDI to identify a portfolio of high priority prospects and targets in Cote d’Ivoire. As a result, the Company has secured four exploration permits in the country, Kokumbo, Ferkessedougou, Boundiali and Kounahiri, covering a total area of 1,534km[2] (Figure 7). Of these, two permits, Boundiali and Kounahiri were granted to PDI in January, 2014.
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Figure 7: Locality map of PDI’s interests in Cote D’Ivoire. Notes: (1) Granted exploration permits are in brown and the permit applications are in blue, (2) Green areas signify volcanic and sedimentary rocks and pink areas are mainly granite, (3) the Komboro permit application was the subject of an earlier agreement however PDI and the permit owner have not yet agreed revised JV terms.
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Kokumbo Permit (PDI earning 90%)
Introduction
The permit is held by a Cote d’Ivoire company, Ivoir Negoce, and covers an area of 400km[2] in southern Cote d’Ivoire (Figure 6). Located 30km south of the country’s administrative capital, Yamoussoukro, and about 40km north of Newcrest’s operating Bonikro Gold Mine, it is serviced by a bitumen road and a power line. The area is covered by forested rolling hills and extensive lateritic cover.
Kokumbo has a long history of artisanal mining dating back to before colonial times in the late 19th century. Commercial scale mining was carried out by various parties in from early in the twentieth century until 1953. Since then all mining in the area has been by artisanal miners.
The town of Kokumbo, near the centre of the permit, services a substantial population of artisanal miners who are working on numerous prospects throughout the area. These prospects consist of both quartz vein mine operations and processing of gold mineralised laterite.
Kokumbo Reconnaissance Program
PDI geologists undertook a program of track cutting, geological mapping and ground magnetics surveys on the Kokumbo permit during the Quarter.
In addition, compilation of a large amount of historic data on the permit was completed in midApril.
Ferkessedougou Permit (PDI 100%)
The Ferkessedougou Permit was among the highest priority areas highlighted by PDI’s regional structural analysis of the country and contains some artisanal gold sites. It covers an area of 387km[2] in northern Cote d’Ivoire (Figure 7).
A program of stream sediment sampling, using the BLEG (Bulk Leach Extractable Gold) technique was completed during the March Quarter. 96 silt/clay stream sediment samples (including field duplicates) were collected over the permit (Figure 8). The samples were assayed at one of the Bureau Veritas laboratories in Perth. Details of the sampling and analytical methods employed in this survey are provided in the explanatory tables at the end of this report.
The BLEG survey revealed four gold anomalous drainages (Figure 8) which will be followed up with closer spaced BLEG sampling during the June Quarter.
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Figure 8: Location of BLEG stream sediment samples on the Ferkessedougou exploration permit with gold assay ranges recorded in parts per billion (ppb).
Boundiali Permit (PDI 100%)
The Boundiali exploration permit is located within the same greenstone belt as the Syama, Sissingue and Tongon gold deposits. It covers an area of 400 km[2] in north-eastern Cote D’Ivoire and contains a number of recorded gold artisanal mine occurrences.
The permit lies directly along strike from Syama and Sissingue. Syama is a large gold mine in Mali owned by Resolute Mining Limited (ASX: RSG) and Sissingue is an undeveloped gold deposit in northern Cote D’Ivoire owned by Perseus Mining Limited (ASX: PRU).
Boundiali’s location in a structurally interesting position in an extremely well mineralised greenstone belt with known gold occurrences indicates strong prospectivity for a significant gold discovery.
Compilation of historic exploration data commenced in the March Quarter. The first phase of field work is planned for the June Quarter of 2014 and will consist of geological mapping and BLEG gold stream sediment geochemical sampling.
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Kounahiri Permit (PDI 100%)
The Kounahiri Permit was another of the highest priority areas highlighted by PDI’s regional structural analysis of the country. It covers an area of 347km[2] .
The first phase of field work is planned for the June Quarter of 2014 and will consist of geological mapping and BLEG gold stream sediment geochemical sampling.
Planned Exploration Activities June 2014 Quarter – Côte D’Ivoire
Field work across Côte d’Ivoire projects in the June Quarter will include:
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Reconnaissance BLEG gold stream sediment geochemical sampling with limited geological mapping at Kokumbo, Boundiali and Kounahiri.
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Compilation of March Quarter data on Kokumbo and definition of exploration targets.
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Follow-up BLEG stream sediment sampling at Ferkessedougou.
CORPORATE
Placement and Share Purchase Plan
PDI completed a placement to sophisticated investors totalling $1.065 million during the March Quarter at an issue price of $0.016 per share. In addition, PDI shareholders participated in a Share Purchase Plan (SPP) during the Quarter which allowed each eligible shareholder to apply for up to $15,000 of PDI shares, also at an issue price of $0.016 per share. The SPP closed on 24 February with applications received for 20,375,000 shares to raise $326,000. These funds will be used for exploration, particularly the Bongou Prospect in Burkina Faso, and general working capital.
Extraordinary General Meeting
An Extraordinary General Meeting of PDI shareholders was held in Melbourne on 20 March 2014 to consider the following resolutions:
Resolution 1 – Ratification of prior issue of 31,541,275 Shares
Resolution 2 – Ratification of prior issue of 29,746,225 Shares
Resolution 3 – Issue of Shares to Mr Phillip George Harman
Resolution 4 - Issue of Shares to Mr Philip Henty
Resolution 5 - Issue of Shares to Mr Paul Roberts
Resolution 6 – Issue of Options to Mr Phillip Harman
Resolution 7 - Issue of Options to Mr Philip Henty
Resolution 8 – Issue of Options to Mr Paul Roberts
Resolution 9 – Issue of Options to Mr Timothy Markwell
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Predictive Discovery Limited (PDI) was established in late 2007 and listed on the ASX in December 2010. The Company is focused on exploration for gold in West Africa. The Company’s major focus is in Burkina Faso, West Africa where it has assembled a substantial regional ground position totalling 1,605km[2] and is exploring for large open-pittable gold deposits. Exploration in eastern Burkina Faso has yielded a large portfolio of exciting gold prospects, including the Bongou trend where a series of high-grade gold drill intercepts have been obtained in the past 12 months. PDI also has interests in a strategic portfolio of tenements in Cote D’Ivoire covering a total area of 1534 km[2] .
Competent Persons Statement
The exploration results reported herein, insofar as they relate to mineralisation, 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.
For further details please contact:
Paul Roberts Nathan Ryan Managing Director NWR Communications Tel: +61 8 9216 1020 Tel: +61 420 582 887 Email: Email: [email protected] [email protected]
TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS
Drill and trench results from Bongou Prospect and surrounding area, Burkina Faso
(UTM coordinates based on WGS84 datum, Zone 31N)
| TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS | TABLE 1 – DRILL, TRENCH AND STREAM SEDIMENT RESULTS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Drill and trench results from Bongou Prospect and surrounding area, Burkina Faso (UTM coordinates based on WGS84 datum, Zone 31N) |
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| Details of drill hole collars and centre point of trench intercept |
0.5 g/t cut-off | 3.0 g/t cut-off | Comments | ||||||||||
| Hole No. or Trench No. |
UTM East |
UTM North |
RL | UTM Azimuth (°) |
Hole dip (°) |
Hole or trench depth (m) |
From (m) |
Interval (estimated true width in brackets) |
Au g/t |
From (m) |
Interval (estimated true width in brackets) |
Au g/t |
|
| BNGTr05 | 207184 | 1422069 | 274 | 167.5 | n/a | 2 | n/a | 13 (11.1) | 3.71 | n/a | 3 (2.6) | 9.01 | TRENCHsamples |
| BNGRD008R | 207380 | 1422388 | 276 | 152.0 | -54 | 421.5 | 283.9 | 3.5 (3.2) |
1.41 | 283.9 | 0.6 (0.5) |
4.92 | |
| BNGRD008R | 207380 | 1422388 | 276 | 152.0 | -54 | 421.5 | 313.0 | 21.5 (19.5) |
1.76 | 317.2 | 4.8 (4.3) |
3.79 | All DD samples |
| BNGRD008R | 207380 | 1422388 | 276 | 152.0 | -54 | 421.5 | 328.5 | 1.7 |
3.49 | 328.5 | 1.7 |
3.49 | |
| BNGRD009T | 207454 | 1422435 | 276 | 152.0 | -54 | 334.5 | No significant result | ||||||
| 207340 | 1422359 | 276 | 151.0 | -50 | 379.5 | 334 | 1 (0.7) | 0.63 | At a cut-off grade, the | ||||
| intercept of highly | |||||||||||||
| BNGRD010 | silicified rock in this hole, | ||||||||||||
| which appears to | |||||||||||||
| correlate with the |
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| mineralised granite in | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BNGRD008R, consists of | |||||||||||||||||
| 12.7m (9m true width) at | |||||||||||||||||
| 0.31g/t Au from 327.3m | |||||||||||||||||
| BNGRD011 | 207404 | 1422242 | 278 | 151 | -64 | 220.3 | 179 | 8 (5.4) | 2.44 | 183 | 2.3 | 3.44 | All DD samples | ||||
| 207484 | 1422350 | 277 | 168.0 | -51 | 253.0 | 181.8 | 18.8 (17.1) |
2.47 | 181.8 | 5.2 (4.7) |
4.72 | "Total" intercept: 2.20 | |||||
| g/t Au average from | |||||||||||||||||
| 181.8m to 218.0m | |||||||||||||||||
| BNGRD012 | |||||||||||||||||
| (36.2m down-hole or | |||||||||||||||||
| 33.0m true width). All | |||||||||||||||||
| DD samples. | |||||||||||||||||
| BNGRD013R | 207181 | 1422118 | 276 | 167.5 | -60 | 103.5 | 65.9 | 5.3 (4.0) | 1.45 | ||||||||
| BNGRD013R | 207181 | 1422118 | 276 | 167.5 | -60 | 103.5 | 81.1 | 2.9 (2.2) | 1.21 | All DD samples | |||||||
| BNGRD014 | 207402 | 1422340 | 286 | 133 | -60 | 280 | 215 | 4 (3.8) | 0.84 | DD samples | |||||||
| BNGRD014 | 207402 | 1422340 | 286 | 133 | -60 | 280 | 235 | 3 (2.8) | 1.74 | "Total" intercept: 1.14 |
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| 207402 | 1422340 | 286 | 133 | -60 | 280 | 251.7 | 2.9 (2.8) |
5.68 | 251.7 | 2.9 (2.8) |
5.68 | g/t Au average from | |||||
| 235m to 254.6m (19.6m | |||||||||||||||||
| BNGRD014 | down-hole or 18.4m | ||||||||||||||||
| true width). All DD | |||||||||||||||||
| samples. | |||||||||||||||||
| 207186 | 1422075 | 274 | 167.5 | -60 | 66 | No significant result | RC samples. Anomalous | ||||||||||
| gold values from 17 to | |||||||||||||||||
| 35m average 0.14g/t Au. | |||||||||||||||||
| BNGRC017 | Possible depletion of | ||||||||||||||||
| gold values in weathered | |||||||||||||||||
| gabbro relative to high | |||||||||||||||||
| goldgrades at surface. | |||||||||||||||||
| BNGRC018 | 206909 | 1422477 | 276 | 167.5 | -60 | 72 | 14 | 12 (8) | 1.44 | 14 | 2 (1.5) | 4.32 | RC samples | ||||
| 208264 | 1422298 | 272 | 168 | -60 | 78 | 58 | 7 (5.3) | 0.65 | |||||||||
| BNGRC019 | |||||||||||||||||
| RC samples | |||||||||||||||||
| 208253 | 1422342 | 272 | 168 | -60 | 90 | 80 | 3 (2.3) | 1.64 | 3 (2.3) |
1.64 | |||||||
| BNGRC020 | |||||||||||||||||
| RC samples | |||||||||||||||||
| BLEG Stream Sediment results from Ferkessedougou Exploration Permit, Cote D’Ivoire (Notes: (1) hole azimuth, depth and dip data are not relevant to stream sediment samples as no holes are drilled; (2) UTM coordinates are based on WGS84 datum, Zone 30N) |
|||||||||||||||||
| Sample Number | UTM Easting | UTM Northing | RL (elevation) | Au (ppb) | Field duplicate (Yes/no) | Comments | |||||||||||
| PDC000034 | 279527 | 1004453 | 300 | 5.7 | Yes | ||||||||||||
| PDC000035 | 279527 | 1004453 | 300 | 6.8 | Yes | ||||||||||||
| PDC000036 | 279776 | 1005695 | 302 | 8.4 | Yes | ||||||||||||
| PDC000037 | 280055 | 1004072 | 306 | 5.5 | Yes | ||||||||||||
| PDC000038 | 281080 | 1004281 | 297 | 5.8 | Yes | ||||||||||||
| PDC000039 | 281080 | 1004281 | 297 | 5.8 | Yes | ||||||||||||
| PDC000040 | 279945 | 994214 | 273 | 6.6 | Yes | ||||||||||||
| PDC000041 | 282537 | 999227 | 287 | 2.9 | Yes | ||||||||||||
| PDC000042 | 282726 | 998735 | 281 | 3.7 | Yes | ||||||||||||
| PDC000043 | 274769 | 1000359 | 315 | 0.8 | Yes | ||||||||||||
| PDC000044 | 274898 | 999087 | 327 | 0.3 | Yes | ||||||||||||
| PDC000045 | 274898 | 999087 | 327 | 0.3 | Yes | ||||||||||||
| PDC000046 | 281808 | 1002068 | 303 | 3.5 | Yes | ||||||||||||
| PDC000047 | 281808 | 1002068 | 303 | 3.1 | Yes | ||||||||||||
| PDC000048 | 281820 | 1003745 | 289 | 5.5 | Yes | ||||||||||||
| PDC000049 | 282500 | 1002615 | 293 | 3.9 | Yes | ||||||||||||
| PDC000050 | 277110 | 997437 | 294 | 1.7 | Yes | ||||||||||||
| PDC000051 | 277110 | 997437 | 294 | 1.5 | Yes | ||||||||||||
| PDC000052 | 277627 | 996519 | 293 | 2.0 | Yes | ||||||||||||
| PDC000053 | 274997 | 996033 | 298 | 0.9 | Yes | ||||||||||||
| PDC000054 | 277542 | 991695 | 274 | 1.3 | Yes |
16
==> picture [596 x 83] intentionally omitted <==
| PDC000055 | 278425 | 992275 | 271 | 1.2 | Yes | |
|---|---|---|---|---|---|---|
| PDC000056 | 276170 | 993917 | 280 | 0.6 | Yes | |
| PDC000057 | 276170 | 993917 | 280 | 0.6 | Yes | |
| PDC000058 | 276801 | 993969 | 283 | 1.7 | Yes | |
| PDC000059 | 277147 | 991760 | 279 | 1.6 | Yes | |
| PDC000060 | 277147 | 991760 | 279 | 1.7 | Yes | |
| PDC000061 | 281771 | 995328 | 289 | 4.2 | Yes | |
| PDC000062 | 276433 | 992894 | 277 | 1.0 | Yes | |
| PDC000063 | 276433 | 992894 | 277 | 1.1 | Yes | |
| PDC000064 | 281415 | 995792 | 288 | 6.5 | Yes | |
| PDC000065 | 280676 | 995057 | 287 | 8.5 | Yes | |
| PDC000066 | 281649 | 991373 | 276 | 3.0 | Yes | |
| PDC000067 | 281071 | 990710 | 272 | 3.3 | Yes | |
| PDC000068 | 281001 | 994326 | 290 | 8.2 | Yes | |
| PDC000069 | 281001 | 994326 | 290 | 8.1 | Yes | |
| PDC000070 | 279657 | 992453 | 275 | 6.6 | Yes | |
| PDC000071 | 279364 | 991307 | 275 | 1.2 | Yes | |
| PDC000072 | 281374 | 989831 | 267 | 2.3 | Yes | |
| PDC000073 | 281374 | 989831 | 267 | 2.2 | Yes | |
| PDC000074 | 282141 | 988205 | 272 | 3.0 | Yes | |
| PDC000075 | 282141 | 988205 | 272 | 2.9 | Yes | |
| PDC000076 | 281954 | 989722 | 271 | 1.6 | Yes | |
| PDC000077 | 285159 | 990460 | 272 | 5.1 | Yes | |
| PDC000078 | 284811 | 987359 | 260 | 2.1 | Yes | |
| PDC000079 | 285435 | 988859 | 267 | 2.2 | Yes | |
| PDC000080 | 284500 | 989330 | 269 | 2.9 | Yes | |
| PDC000081 | 284500 | 989330 | 269 | 2.9 | Yes | |
| PDC000082 | 278157 | 984054 | 289 | 1.3 | Yes | |
| PDC000083 | 282053 | 984941 | 275 | 2.7 | Yes | |
| PDC000084 | 274979 | 984614 | 291 | 1.5 | Yes | |
| PDC000085 | 286046 | 985989 | 264 | 3.0 | Yes | |
| PDC000086 | 286046 | 985989 | 264 | 2.7 | Yes | |
| PDC000087 | 286046 | 985989 | 264 | 2.7 | Yes | |
| PDC000088 | 284244 | 984640 | 260 | 2.4 | Yes | |
| PDC000089 | 283087 | 987065 | 275 | 3.0 | Yes | |
| PDC000090 | 284012 | 1001094 | 293 | 3.5 | Yes | |
| PDC000091 | 284109 | 999432 | 290 | 2.9 | Yes | |
| PDC000092 | 284661 | 998808 | 296 | 4.4 | Yes | |
| PDC000093 | 284661 | 998808 | 296 | 4.4 | Yes | |
| PDC000094 | 287266 | 990840 | 273 | 2.1 | Yes | |
| PDC000095 | 287265 | 988698 | 272 | 3.4 | Yes | |
| PDC000096 | 288641 | 990388 | 270 | 2.5 | Yes | |
| PDC000097 | 287801 | 997053 | 281 | 2.8 | Yes | |
| PDC000098 | 286452 | 997929 | 280 | 4.0 | Yes | |
| PDC000099 | 286452 | 997929 | 280 | 4.0 | Yes | |
| PDC000100 | 286452 | 997929 | 280 | 3.7 | Yes | |
| PDC000101 | 286767 | 998001 | 290 | 3.3 | Yes | |
| PDC000102 | 287200 | 996336 | 275 | 4.1 | Yes | |
| PDC000103 | 288977 | 994073 | 270 | 5.0 | Yes | |
| PDC000104 | 288722 | 992080 | 275 | 3.7 | Yes | |
| PDC000105 | 288722 | 992080 | 275 | 3.6 | Yes | |
| PDC000106 | 284551 | 1012817 | 291 | 4.7 | Yes | |
| PDC000107 | 285787 | 1011484 | 294 | 2.5 | Yes | |
| PDC000108 | 284116 | 1013543 | 308 | 1.0 | Yes | |
| PDC000109 | 287114 | 1010208 | 285 | 3.1 | Yes | |
| PDC000110 | 285811 | 1010887 | 297 | 4.5 | Yes | |
| PDC000111 | 285811 | 1010887 | 297 | 4.5 | Yes | |
| PDC000112 | 289313 | 1012659 | 296 | 5.0 | Yes | |
| PDC000113 | 289313 | 1012659 | 296 | 4.9 | Yes |
17
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| PDC000114 | 289324 | 1008997 | 292 | 4.4 | Yes | |
|---|---|---|---|---|---|---|
| PDC000115 | 288806 | 1010283 | 291 | 3.2 | Yes | |
| PDC000116 | 288674 | 1009694 | 295 | 4.6 | Yes | |
| PDC000117 | 288674 | 1009694 | 295 | 5.2 | Yes | |
| PDC000118 | 288512 | 996688 | 271 | 11.5 | Yes | |
| PDC000119 | 289057 | 999227 | 284 | 4.4 | Yes | |
| PDC000120 | 289262 | 999752 | 278 | 4.4 | Yes | |
| PDC000121 | 289153 | 1003814 | 283 | 3.8 | Yes | |
| PDC000122 | 289270 | 1004751 | 301 | 2.4 | Yes | |
| PDC000123 | 289270 | 1004751 | 301 | 2.5 | Yes | |
| PDC000124 | 286243 | 999385 | 275 | 1.7 | Yes | |
| PDC000125 | 289085 | 1002237 | 294 | 1.2 | Yes | |
| PDC000126 | 289085 | 1002237 | 294 | 1.1 | Yes | |
| PDC000127 | 289184 | 1001286 | 265 | 6.0 | Yes | |
| PDC000128 | 284793 | 1013574 | 283 | 5.1 | Yes |
Section 1: Sampling Techniques and Data
JORC Code Criteria Commentary Explanation
Nature and quality of sampling Sampling The sampling described in this report refers to reverse circulation (RC) drill (eg cut channels, random chips, Technique samples, diamond drill core samples and trench channel samples obtained or specific specialised industry standard measurement tools from the area around Bongou in Burkina Faso and bulk leach extractable gold (BLEG) stream sediment samples obtained from the Ferkessedougou appropriate to the minerals exploration permit in Cote D’Ivoire. under investigation, such as downhole gamma sondes, or handheld XRF instruments, RC drilling was used to obtain 1 m samples from which 2 kg was pulverised etc). These examples should to produce a 50 g charge for fire assay. Core sample intervals were selected not be taken as limiting the to minimise geological variability within each sample (i.e. seeking to broad meaning of sampling maximise the uniformity in lithology, alteration or sulphide mineralisation in Include reference to measures each interval). taken to ensure sample representivity and the The RC samples were reduced to a 2kg sample by riffle splitting on site. The appropriate calibration of any diamond core samples were cut in half longitudinally using a diamond saw. measurement tools or systems Measures were taken to avoid wet RC drilling and the drilling method was used. Aspects of the changed from RC to diamond coring at or before the point when the air determination of mineralisation pressure from the RC rig was incapable of keeping the samples dry. that are Material to the Public Report.
RC drilling was used to obtain 1 m samples from which 2 kg was pulverised to produce a 50 g charge for fire assay. Core sample intervals were selected to minimise geological variability within each sample (i.e. seeking to maximise the uniformity in lithology, alteration or sulphide mineralisation in each interval).
The RC samples were reduced to a 2kg sample by riffle splitting on site. The diamond core samples were cut in half longitudinally using a diamond saw. Measures were taken to avoid wet RC drilling and the drilling method was changed from RC to diamond coring at or before the point when the air pressure from the RC rig was incapable of keeping the samples dry.
Trench samples were collected from channel samples obtained from weathered rock at the base of one of the trench walls. Sampling intervals were selected to minimise geological variability within each sample (i.e. seeking to maximise the uniformity in lithology, alteration or sulphide mineralisation for each interval). Re-sampling of trench samples indicated significant variability in the same location, leading to an inference of coarse gold. Check assays using a screen fire method showed that higher grades are found in the +106 micron fraction, indicating that coarse gold is indeed present.
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.
The drill and trench samples are judged to be representative of the rock being drilled because representative sub-sampling of both the RC and diamond core samples was achieved and follow up check assaying using an appropriate method was used when evidence of coarse gold was found. The trench mineralisation is hosted by weathered, sheared gabbro. Elsewhere, almost all of the gold is hosted in fresh altered granite where detailed petrological work has failed to find any coarse gold.
The Cote D’Ivoire BLEG samples consisted of silt and clay material obtained from active stream sediment within and on the banks of streams which flow during the rainy season.
Drill type (eg core, reverse Drilling circulation, open- hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard
RC drilling was carried out using a 4.5 inch or 5.5 inch face sampling hammer. RC precollars varied from 20 to 200m long and the diamond drill tails were up to 221.5m long. The diamond core size was NQ apart from up to 3m of HQ core which was drilled immediately after the changeover from RC to diamond coring. The diamond core was oriented using a core orientation device.
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| tube, depth of diamond tails, face- sampling bit or other type, whether core is oriented and if so, by what method, etc). |
||
|---|---|---|
| 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. |
Sample recovery was estimated for all samples. RC recoveries were estimated by measuring the volume of material in each bag relative to the known volume of the drill hole. Core samples were measured from core block to core block once core had been placed in the core trays. Sample recovery was maximised in the RC drilling by use of a face sampling hammer and by converting to diamond coring when it was no longer possible to drill dry samples. A petrological study of the mineralisation and the absence of any high-grade gold value above 32.9g/t Au in the altered mineralised granite throughout the database both point to the gold grainsize typically being below 50 microns which would also mitigate against sampling not being representative. |
| 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. |
Detailed geological logging has been carried out on all drill samples, recording lithology, weathering, structure, (including orientation where the core is oriented), veining and/or mineralisation, grainsize and colour. Logging of sulphide mineralization and veining is quantitative. RQDs are recorded routinely. Photography of the cut core is not yet complete but will be carried out during the field season. No judgement has yet been made by independent qualified consultants on whether the geological and geotechnical logging has been sufficient to support Mineral Resource estimation, mining and metallurgical studies. A geological map of the trenches reported have either been prepared or are in the process of preparation. BLEG stream sediment location descriptions are all recorded along with any outcrop or float geology at the sample site. |
| 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 beingsampled. |
Core samples were cut in half longitudinally with a diamond core saw with one half submitted for assay and the remaining half retained in core trays which are stored at PDI's field camp in Gayeri. Core sampling intervals were defined by variations in lithology and mineralogy but are typically 0.5-1.0m. An on-site riffle splitter was employed to produce a 2kg assay sample for submission to SGS. Either one or two reference riffle-split 2kg samples are retained from the RC samples for future re-assay or metallurgical testwork. The sampling (and analytical) methods were appropriate for the style of mineralisation, especially as no visible gold has been observed and previous petrological studies indicate that the typical gold grain size is less than 50 microns. Trench channel samples were submitted in their entirety to the analytical lab, where they were dried, crushed and riffle split to produce representative samples. BLEG stream sediment samples consist of silt and clay material which is extracted from the other stream sediment material by decanting the fine grained material in suspension and then settling it out of suspension using a flocculant. |
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| 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 drill and trench samples were assayed for gold by 50g fire assay at the SGS laboratory in Ouagadougou, Burkina Faso. The technique is considered a total analysis. Check screen fire assays were employed on selected, higher grade trench samples where coarse gold was suspected. BLEG stream sediment samples were assayed at the former Ultra Trace (now Bureau Veritas) laboratory in Perth. No geophysical tools, spectrometers or handheld XRF instruments have yet been employed although XRF scanning of some of the core using a hand held XRF instrument is planned. Unlabelled standards were submitted with all drill and trench assay batches, generally at the rate of one standard every 15thsample, whether from RC or diamond drilling. Blanks were also submitted with RC sample batches. Where any problems with bias or accuracy, especially outside of a +/- 10% envelope is observed, samples are re-assayed. External laboratory checks are planned but have not yet been carried out. Field duplicates were submitted with the BLEG samples. |
|---|---|---|
| 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 |
No holes have yet been twinned. Field data collection is undertaken by the company’s Burkina Faso-based geologists. All results are checked by Mr Paul Roberts, the company’s Managing Director. |
| 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. Specification of the grid system used Quality and adequacy of topographic control |
Collar and trench locations were located using a hand held GPS with a location error of +/-3m. Collar RLs were established by interpolation between surveyed points established for an earlier geophysical survey with an estimated elevation error of less than 2m. Drill collar and trench coordinates listed in Table 1 for the Bongou area drilling and trenching is for Universal Transverse Mercator (UTM), Datum WGS 84, Zone 31 - Northern Hemisphere. Coordinates listed for the Cote D’Ivoire BLEG stream sediment results is for Universal Transverse Mercator (UTM), Datum WGS 84, Zone 30 - Northern Hemisphere. |
| 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 drill intercepts in the main Bongou mineralised zone are irregularly spaced but approximately 40 x 40m. No judgement has yet been made by an independent qualified consultant on whether the drill density is sufficient to calculate a Mineral Resource. RC holes in prospects near Bongou have only been tested by one or two RC or RC/DD holes each. Sample compositing was applied only to samples thought to be un- mineralised. Sample composites were mostly 8m. The BLEG sampling was designed to test catchment areas averaging approximately 5 km2. |
| 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. |
All drill holes and trenches reported here were drilled approximately at right angles to the strike of the target mineralization. The mineralisation appears to be a disseminated type with no evidence yet identified for ore distribution being in any orientation other than parallel to strike of the mineralised body. |
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| Sample Security | The measures taken to ensure sample security |
The large RC sample bags are stored at a sample farm on PDI’s exploration permits. These are guarded at all times by local individuals hired for this purpose. 2kg reference samples are stored at the company’s field camp in the town of Gayeri, which is guarded 24 hours per day. Pulp samples are retained at company premises in Ouagadougou which are also guarded 24 hours per day. Reference BLEG samples from Cote D’Ivoire are stored at PDI’s sample store in Ouagadougou,Burkina Faso. |
|---|---|---|
| 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 Bongou Prospect lies entirely within the Madyabari Permit (Arrêté N°2011 /11/352/MCE/SG/DGMGC) which covers an area of 172 sq km. There are no overriding reserves or national parks over this permit. In a future mining operation, the Government of Burkina Faso is entitled to a 10% share of any mine along with a 3-5% ad valorem royalty, the percentage of which is determined by the gold price prevailing at the time. The company believes that (a) the permit is securely held as it has complied with all the necessary government requirements and (b) the permit can be replaced in due course by a mining licence as long as a feasibility study shows that a future mine would be viable and that company completes meets the Government’s legal requirements, which it fully intends to do. The Madyabari permit was initially acquired, along with three other nearby permits (Sirba, Fouli and Tantiabongou), by Birrimian Pty Ltd (Birrimian), which is a British Virgin Islands-registered company now 100% owned by PDI. The original owners of Birrimian subsequently entered into an agreement with Eldore Mining Corporation Limited (Eldore) through which Eldore could acquire the Birrimian permits through a series of payments and a commitment to issue US$2 million worth of Eldore stock on completion of a Bankable Feasibility Study on one or more ore deposits within the Birrimian permits. PDI initially acquired an interest in Madyabari along with the three other Birrimian permits via a joint venture with Eldore which commenced in January 2010. In 2012, Eldore changed its name to Stratos Resources Limited (ASX: SAT) after which PDI bought out SAT’s residual interest (in late 2012). In acquiring Birrimian, PDI also inherited the one unfulfilled commitment in the original Eldore agreement with the original Birrimian shareholders. This commitment has now been agreed to mean that PDI will issue US$2 million worth of PDI shares after PDI accepts an offer of finance for development of a mine on the Birrimian permits at its sole discretion) following completion of a Bankable Feasibility Study. The Ferkessedougou exploration permit was granted in 2013 is owned 100% by PDI. |
| Exploration Done by Other Parties |
Acknowledgment and appraisal of exploration by other parties. |
Past exploration over the Bongou prospect consisted of wide spaced soil sampling and an aeromagnetic survey. Previous explorers did not recognise the significance of the Bongou mineralisation, which appears to have been discovered byartisanal miners. |
| Geology | Deposit type, geological setting and style of mineralisation. |
Mineralisation in the main Bongou deposit and the nearby Bongou W2 prospect consists of an intensely altered (silica-albite) and quartz veined granite body which lies sandwiched between a sheared gabbro on the mineralisation’s northern margin and a basalt body (partly sheared) on its southern margin. The gabbro and basalt contacts are approximately parallel to one another. Pyrite is disseminated throughout the mineralisation with higher gold grades apparently associated with coarse grained pyrite. The quartz veins contain some carbonate and the mineralisation contains minor magnetite and some sericite in fractures. The main Bongou mineralised zone lies within a large structure which is approximately 43km long within three contiguous permits owned 100% by the company (Madyabari, Bassieri and Tamfoagou). The mineralisation is interpreted as a variant of the orogenic gold mineralisation style, which is known throughout the Birimian Belt of West Africa. Mineralisation in the Bongou W1 and Bongou E1 prospects is hosted in sheared gabbro. The geology of the Ferkessedougou permit consists of granite, metasediments, mafic volcanics and conglomerates. |
| Drill Hole | A summary of all information | Intercepts that form the basis of this announcement are tabulated in Table 1 within the bodyof the announcement and incorporate Hole Number,Easting, |
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| 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 Competent Person should clearly explain why this is the case. |
Northing, Dip, Azimuth, Depth and Assay data for mineralised intervals. An appropriate locality map also accompanies this announcement. |
|---|---|---|
| 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 clearly stated. |
Over 95% of the gold mineralised material (with grades exceeding 0.5g/t Au) was sampled in intervals of one meter or less. No top cuts have been applied to exploration results as the maximum value in the entire assay database is 32.9g/t Au and only 4 samples contain more than 20g/t Au. For the 0.5g/t Au cut-off calculations, up to 3m (down-hole) of internal waste is included. For the 3g/t Au cut-off calculations, up to 2m (down-hole) of internal waste is included. For the “total intercept” average grade recorded for hole BNGRD014 in the Comments column, the average grade is calculated with a cut- off grade of 0.5 g/t Au and up to 13.7m of internal waste (down-hole). 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 all intercepts based on the assumption that the gold mineralisation is oriented parallel to the hanging wall and foot wall contacts. True widths in the RC holes are less reliably estimated because of the lack of oriented core and paucity of outcrop in the vicinity. |
| 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. |
An appropriate plan and long section for the Bongou Prospect has been included in the text of this document. |
| Balanced Reporting | Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of |
All intercepts containing average gold grades exceeding 2g-m (e.g. 1 g/t Au over a down-hole width of 2m) are reported. Values for the lower grade intercept in hole BNGRC017 are also recorded. Holes in which no significant result has been obtained are also routinely reported by PDI. |
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| both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results. |
All BLEGF stream sediment results have been reported. | |
|---|---|---|
| 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. |
Preliminary metallurgical test work has been completed on one composite sample of RC chips and reported previously (ASX release entitled “Excellent Gold Recoveries from Metallurgical Test Work” on 14thMay 2013); a gold recovery of 94% was recovered by CIL testwork using a standard 75 micron grind. Additional metallurgical testwork is planned in 2014. |
| 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 commerciallysensitive. |
Further drilling is planned to test for more Bongou-style mineralised bodies. The first phase of that drilling will be carried out with a power auger rig, followed by trenching and then by RC drilling. |
TENEMENT STATUS – MARCH QUARTER, 2014
| Name | Number | Location | Area (sq. km) |
PDI equity |
Changes in holding during March Quarter, 2014 |
|---|---|---|---|---|---|
| Fouli | arrêté 2011- 11- 351/MCE/SG/DGMGC |
Burkina Faso |
186.2 | 100% | None |
| Tantiabongou | arrêté 2007- 019/MCE/SG/DGMGC |
Burkina Faso |
93.9 | 100% | None |
| Sirba | arrêté 2011-11 - 353 /MCE/SG/DGMGC |
Burkina Faso |
136.9 | 100% | None |
| Madyabari | arrêté 2011- 11 - 352/MCE/SG/DGMGC |
Burkina Faso |
171.9 | 100% | None |
| Tyekanyebi | Arrêté 2010- 202/MCE/SG/DGMGC |
Burkina Faso |
242 | 100% | None |
| Tamfoagou | 353 (arrêté 2005- 061/MCE/SG/DGMGC) |
Burkina Faso |
238 | 100% | None |
| Tangagari | arrêté 2009- 068/MCE/SG/DGMGC |
Burkina Faso |
127.5 | Earning 95%; current equity 0% (until final cash payment is made) |
None |
23
==> picture [596 x 83] intentionally omitted <==
| Aoura | arrêté 2008- 023/MCE/SG/DGMGC |
Burkina Faso |
25 | Earning 95%; current equity 0% (until final cash payment is made) |
None |
|---|---|---|---|---|---|
| Boussouma | Arrete 2011- 059/MCE/SG/DGMGC |
Burkina Faso |
116 | Earning 95%; current equity 0% (until final cash payment is made) |
None |
| Bangaba | Arrete 2009- 100/MCE/SG/DGMGC |
Burkina Faso |
128 | Earning 95%; current equity 84% |
None |
| Kogodou South |
2011- 299/MCE/SG/DGMGC |
Burkina Faso |
44.6 | Earning 100%; current equity 0% (until final cash payment is made) |
None |
| Bira | 2013- 33/MCE/SG/DGMGC |
Burkina Faso |
21 | 100% | None |
| Basieri | 2013- 16/MCE/SG/DGMGC |
Burkina Faso |
73.5 | 100% | None |
| Kokumbo | Mining exploration permit No. 307 |
Cote D'Ivoire |
400 | Earning 90% |
None |
| Ferkessedoug ou |
Mining exploration permit No. 310 |
Cote D'Ivoire |
387 | 100% | None |
| Boundiali | Mining exploration permit No. 414 |
Cote D'Ivoire |
399 | 100% | Application granted during March Quarter |
| Kounahiri | Mining exploration permit No. 317 |
Cote D'Ivoire |
347 | 100% | Application granted during March Quarter |
| Cape Clear | EL 5423 | Victoria, Australia |
160 | 100% | None |
24