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DEEP YELLOW LIMITED — Capital/Financing Update 2019
Apr 22, 2019
64808_rns_2019-04-22_6818e746-56bc-4d2f-85a9-d771cd675abf.pdf
Capital/Financing Update
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ASX Announcement
ASX & NSX: DYL / OTCQB: DYLLF
23 April 2019
TUMAS CONTINUES SHOWING STRONG POTENTIAL FOR ADDITIONAL RESOURCES
HIGHLIGHTS
- Drilling continued at Tumas 1 East identifying 3km of continuous mineralisation in Tributary 5
o 211 holes for 1,951m completed
o 4m to 9m thick, near-surface continuous mineralisation now closed off
-
Best intersections include:
-
TA372 9m at 322ppm eU3O8 from 6m
-
TA356 4m at 310ppm eU3O8 from 7m TA407 8m at 549ppm eU3O8 from 3m
-
-
Drilling at Tumas Central isolated continuous uranium mineralisation along 1.5km of palaeochannel with 45% of drilling returning >100ppm eU3O8 over 1m
-
47 holes for 1,313m completed
-
Mineralisation open to east and west
o Best intersections include:
-
TW026 8m at 385ppm eU3O8 from 2m
-
TW028 8m at 498ppm eU3O8 from 4m
-
TW033 5m at 494ppm eU3O8 from 2m
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To date only 50% of the known, highly prospective palaeochannel system drilled with a substantial 60km of this target remaining to be tested.
-
Mineralisation is calcrete-associated hosted within palaeochannels, similar to the Langer Heinrich uranium mine located 30km to the north
Deep Yellow Limited ( Deep Yellow ) is pleased to report encouraging drilling results on EPL3497 where new continuous mineralisation has been identified in the Tumas 1 East palaeochannel area along Tributary 5. Drilling also delineated continuous uranium mineralisation on EPL3496 in the Tumas Central area to the west of Tumas 3. This EPLs are held by Reptile Uranium Namibia (Pty) Ltd ( RUN ), part of the group of companies wholly owned by Deep Yellow.
Unit 17, 100-104 Railway Road Subiaco WA 6008 / PO Box 1770 Subiaco WA 6904 Tel: 61 8 9286 6999 / Fax: 61 8 9286 6969 / ABN 97 006 391 948 Email: [email protected] / Website: www.deepyellow.com.au
As previously announced, the last phase of drilling for the 2018/19 program commenced in February with semi-regional exploration drilling in the Tumas Central area where 47 RC holes were drilled for 1,313m. A combination of exploration and resource drilling followed in the Tumas 1 East area with 211 RC holes for 1,951m completed by 15 April 2019. At Tumas 1 East all tributaries, with the exception of Tributary 8, have had some exploration drilling carried out with resources established in Tributaries 1, 2 and 4. The current program identified continuous uranium mineralisation in Tributary 5 which is now closed off. Figures 1 and 2 show the prospective paleochannel system outline and prospect locations.
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Figure 1: EPLs 3496, 3497 showing Tumas Deposits and main prospect locations over palaeochannels.
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Tumas East Drilling
Exploration and resource drilling started 4 March 2019 at Tributary 4, 5 and 6 north of the newly defined Inferred Resource at Tumas 1 East as announced 27 March 2019. This completed the drilling planned for the 2018/19 program and in this final phase a total of 211 RC drill holes for 1,951m was completed. Drill spacings varied from 50m to 100m along lines 200m to 800m apart. 76 of these holes returned positive results of greater than 100ppm eU3O8 over 1m. The average thickness of the mineralisation is close to 5m. The average grade of all the 1m intersections >100ppm eU3O8 ppm was 228ppm and >200ppm eU3O8 was 356ppm U3O8.
The drilling at the Tributary 5 north of Tumas 1 has outlined a uraniferous channel 3km in strike length showing continuous calcrete uranium mineralisation. The mineralised channel ranges from 100m to 600m in width. The mineralisation is located at shallow depth between 2m to 15m below surface. In the Tributary 5 resource drilling area uranium mineralisation >100ppm eU3O8 was identified in 56 (48%) of the 119 holes drilled in this zone with an average grade of 232ppm eU3O8. At >200ppm/m cut-off the average grade is 361ppm eU3O8. The mineralisation does not show any surface radiometric expression.
The Tributary 5 mineralisation thins out towards the west, is closed off to the east but the southern edge of the channel needs further infill drilling before an inferred resource estimate can be undertaken.
Drill hole locations from this program are shown in Figure 2. Figures 3 and 4 show a drill cross-section and long-section respectively highlighting the continuity and thickness of the mineralisation in Tributary 5.
Exploration drilling along Tributaries 4 and 6 encountered thin and low-grade mineralisation. Tributary 8 which is 7km long remains to be explored.
Equivalent uranium oxide (eU3O8) values as reported here have been determined by Deep Yellow personnel and these will be validated by a competent geophysicist for resource estimation purposes. The equivalent uranium values are based on down-hole radiometric gamma logging carried out by a fully calibrated Aus-Log gamma logging system.
Mineralised intersections that are above the 100ppm eU3O8 over 1m cut-off are tabulated in Table 1, Appendix 1. All drill hole locations are listed in Table 3, Appendix 1.
Semi-Regional Exploration Drilling - Tumas Central Area
Semi-regional exploration drilling at Tumas Central was completed in February 2019. As announced on 20 December drilling started here late in 2018 but work had to be suspended due to the Christmas break. On resumption a further 47 holes for 1,313m were completed in this area in 2019. Drill hole spacing was variable ranging from 100m to 200m spaced holes along profiles 200m to 800m apart. The area is one of the seven semi-regional exploration targets which were identified early in 2018 but this priority zone could not be tested previously due to access problems which are now resolved. Targets in the area included testing the confluence of two channels and some surface radiometric anomalism over the main palaeochannel.
The drilling identified 1.6km of continuous uranium mineralisation along the southern edge of the main Tumas palaeochannel. The mineralisation is 200m to 400m wide and up to 11m thick. 21 of 47 holes (45%) show mineralisation of greater than 100ppm eU3O8 over 1m. At a 100ppm cut-off the average grade is 282ppm and average thickness is close to 4m. The average grade at a 200ppm cut-off is 407ppm. The mineralisation is open to the east where it could connect to the Tumas 3 West mineralisation (which is 5km away) and to the west where it could connect to the Tubas Red Sand calcrete deposit (which is 3km from the Tumas Central area).
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Figure 5 shows the exploration drill hole locations in relation to the historic drilling at Tumas 3 West and Tubas Red Sand areas. Figure 6 shows a north-south cross-section through the area highlighting the location of the mineralisation at the southern edge of the large Tumas Channel.
Mineralised intersections from the Tumas Central drilling above >100ppm eU3O8 over 1m cut-off are tabulated in Table 2, Appendix 1. All drill hole locations are listed in Table 3, Appendix 1.
Analysis
The results of the ongoing exploration continue defining additional uranium mineralisation, much of it continuous, maintaining the highly encouraging prospectivity of these palaeochannels associated with the eastern extension of Tumas 1 and promising uranium mineralisation in Tumas Central.
The 2018/19 drill program is now completed and it succeeded in substantially extending the previous limits of mineralisation at Tumas 1. Drilling is demonstrating the potential to further extend the mineralisation in this zone and along other parts of the channel system. Testing for mineralisation in tributary channels, which historically were neglected, has shown to be just as important as drilling the main channel targets for upgrade of the overall resource base associated with these highly fertile palaeochannels. The uranium mineralisation is not confined to one simple, single channel but rather is associated with a complex palaeodrainage system containing several channels and tributaries.
Appendix 1, Tables 1 and 2 list the 76 exploration drill holes at Tumas 1 East and 21 semi-regional exploration drill holes from the Tumas Central area respectively returning uranium intersections above cut-off and showing equivalent uranium values in ppm and thickness with hole depth and coordinates provided. Table 3 in Appendix 1 lists all 258 drill holes completed from December 2018 to April 2019 from the current drilling program which are the subject of this release.
Conclusion
This fourth, now completed, drilling campaign has again produced successful results. It has confirmed that the previously discovered deposits can be expanded. This has not only added to the current uranium resource base of this project but, just as significantly, continues to emphasise the strong exploration potential of the extensive, uranium-fertile palaeochannel system within which the new Tumas palaeochannel discoveries occur.
There are now 5 distinct mineralised zones (Tumas 1 & 2, Tumas 3, Tubas Sand/calcrete deposits and Tumas 1 East) identified within the 125km of palaeochannels that occur within the Reptile Project tenements (see Figure1). Approximately 50% of these have now sufficiently been explored over the past 2 years and the resource base in the Tumas channel system has been increased by 160%. Some 50%, or approximately 60km, of this palaeochannel system which deepens to the west remains to be properly tested.
These positive results, both from the current 2018/19 and 2017 drilling and re-interpretation of historic exploration data which outlined the regional palaeochannel target, confirm management’s confidence that the existing uranium resource base for Langer Heinrich style deposit/s within the Reptile Project area can be further increased.
It is planned that drilling will start again in the second half of 2019 with the drilling program including infill resource drilling required for resource estimations at Tumas 1 East, Tumas Central and Tubas Red Sand/calcrete areas.
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CEO Comment
John Borshoff commented: “This latest drilling which marks the end of the 2018/19 drilling season has finished on yet another positive note delineating a cumulative 4.5km of continuous uranium mineralisation. Drilling of Tributary 5 and Tumas Central has again demonstrated the high-quality nature of the exploration target the Company has uncovered. The Tumas palaeochannel is proving remarkably fertile showing all the hallmarks that enhancement of the Deep Yellow uranium resource will continue to occur.”
Yours faithfully
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JOHN BORSHOFF
Managing Director/CEO Deep Yellow Limited
For further information, contact:
John Borshoff Managing Director/CEO
Phone: +61 8 9286 6999 Email: [email protected]
For further information on the Company and its projects, please visit the website at: www.deepyellow.com.au
Competent Person’s Statement
Exploration Competent Person’s Statement
The information in this announcement as it relates to exploration results was compiled by Mr Martin Hirsch, a Competent Person who is a Member of the Institute of Materials, Mining and Metallurgy (IMMM) in the UK. Mr Hirsch, who is currently the Exploration Manager for Reptile Mineral Resources and Exploration (Pty) Ltd ( RMR ), has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking, to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Hirsch consents to the inclusion in this announcement of the matters based on the information in the form and context in which it appears. Mr Hirsch holds shares in the Company.
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Figure 2 : Drill hole locations showing the recent drilling program at Tumas 1 East and Tumas 1.The resource contours and the drill hole collars are coloured in eU3O8 grade thickness values (GT: eU3O8 pmm x m).
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Figure 3: Tumas 1 East, Tributary 5 – Cross Section 526900E.
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Figure 4: Tumas 1 East, Tributary 5 - NW-SE Long Section.
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Figure 5: Tumas Central : Drill hole locations showing the recent and historic exploration drilling. Drill hole collars are coloured according to eU3O8 grade thickness values (GT: eU3O8 pmm x m).
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Figure 6: Tumas Central – Cross-Section 498000E.
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APPENDIX 1: Drill Hole Status and Intersections
Table 1. Drill Hole Details (76 Holes drilled 4 March to 12 April 2019)
| TUMAS 1 EAST | TUMAS 1 EAST | - RESOURCE EXPLORATION DRILLING | - RESOURCE EXPLORATION DRILLING | - RESOURCE EXPLORATION DRILLING | |||||
|---|---|---|---|---|---|---|---|---|---|
| Hole ID | From (m) |
Thickness (m) |
eU3O8 (ppm) |
From (m) | eU3O8 max (over 1m) |
Easting | Northing | RL | TD (m) |
| TA338 | 10.0 | 1.0 | 167 | 10.0 | 167 | 527700 | 7450400 | 669 | 13 |
| TA339 | 4.0 | 3.0 | 153 | 4.0 | 171 | 527700 | 7450300 | 669 | 10 |
| TA340 | 3.0 | 9.0 | 276 | 11.0 | 666 | 527700 | 7450200 | 670 | 16 |
| TA341 | 2.0 | 2.0 | 146 | 3.0 | 165 | 527700 | 7450100 | 671 | 13 |
| 8.0 | 3.0 | 322 | 9.0 | 520 | |||||
| TA342 | 1.0 | 6.0 | 176 | 6.0 | 504 | 527700 | 7450000 | 670 | 13 |
| 9.0 | 2.0 | 326 | 10.0 | 388 | |||||
| TA344 | 5.0 | 3.0 | 214 | 7.0 | 336 | 527900 | 7450400 | 674 | 13 |
| TA346 | 9.0 | 5.0 | 100 | 11.0 | 124 | 528100 | 7451250 | 671 | 16 |
| TA347 | 8.0 | 5.0 | 156 | 9.0 | 220 | 528100 | 7451350 | 671 | 16 |
| TA348 | 9.0 | 1.0 | 109 | 9.0 | 109 | 528100 | 7451450 | 670 | 22 |
| TA350 | 7.0 | 6.0 | 124 | 7.0 | 180 | 528100 | 7451650 | 669 | 19 |
| TA351 | 12.0 | 1.0 | 116 | 12.0 | 116 | 528100 | 7451750 | 669 | 16 |
| TA353 | 7.0 | 2.0 | 191 | 7.0 | 215 | 528300 | 7451700 | 671 | 19 |
| TA354 | 5.0 | 7.0 | 283 | 9.0 | 662 | 528300 | 7451800 | 672 | 16 |
| TA356 | 7.0 | 3.0 | 119 | 7.0 | 143 | 528300 | 7451600 | 669 | 19 |
| 15.0 | 1.0 | 106 | 15.0 | 106 | |||||
| TA367 | 6.0 | 2.0 | 134 | 6.0 | 137 | 528700 | 7452250 | 675 | 16 |
| TA369 | 6.0 | 2.0 | 143 | 6.0 | 178 | 527700 | 7451950 | 661 | 13 |
| TA370 | 6.0 | 7.0 | 170 | 11.0 | 329 | 527700 | 7451850 | 662 | 16 |
| TA371 | 5.0 | 8.0 | 182 | 7.0 | 348 | 527700 | 7451750 | 664 | 16 |
| TA372 | 1.0 | 1.0 | 175 | 1.0 | 175 | 527700 | 7451650 | 665 | 16 |
| 6.0 | 9.0 | 322 | 12.0 | 881 | |||||
| TA373 | 6.0 | 8.0 | 137 | 7.0 | 226 | 527700 | 7451550 | 665 | 16 |
| TA375 | 4.0 | 2.0 | 156 | 5.0 | 205 | 527700 | 7452050 | 661 | 13 |
| TA376 | 4.0 | 6.0 | 166 | 8.0 | 223 | 527500 | 7451950 | 661 | 13 |
| TA377 | 8.0 | 7.0 | 233 | 10.0 | 593 | 527500 | 7451850 | 660 | 19 |
| TA378 | 4.0 | 11.0 | 210 | 11.0 | 436 | 527500 | 7451750 | 660 | 19 |
| TA380 | 3.0 | 1.0 | 101 | 3.0 | 101 | 527500 | 7452050 | 660 | 10 |
| TA383 | 4.0 | 6.0 | 156 | 7.0 | 197 | 527300 | 7452000 | 658 | 13 |
| TA384 | 3.0 | 8.0 | 187 | 7.0 | 286 | 527300 | 7451900 | 658 | 13 |
| TA385 | 4.0 | 7.0 | 288 | 6.0 | 477 | 527300 | 7451800 | 660 | 13 |
| TA386 | 7.0 | 4.0 | 310 | 10.0 | 347 | 527300 | 7451700 | 661 | 13 |
| TA389 | 3.0 | 9.0 | 235 | 7.0 | 647 | 527100 | 7452050 | 655 | 13 |
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APPENDIX 1 (Table 1): Drill Hole Status and Intersections (continued)
| Hole ID | From (m) |
Thickness (m) |
eU3O8 (ppm) |
From (m) | eU3O8 max (over 1m) |
Easting | Northing | RL | TD (m) |
|---|---|---|---|---|---|---|---|---|---|
| TA390 | 3.0 | 8.0 | 252 | 9.0 | 598 | 527100 | 7451950 | 657 | 13 |
| TA391 | 3.0 | 10.0 | 174 | 7.0 | 406 | 527100 | 7451850 | 657 | 16 |
| TA392 | 4.0 | 4.0 | 150 | 5.0 | 217 | 527100 | 7451750 | 657 | 10 |
| TA393 | 2.0 | 6.0 | 316 | 5.0 | 540 | 526900 | 7452200 | 654 | 10 |
| TA394 | 2.0 | 9.0 | 287 | 5.0 | 509 | 526900 | 7452100 | 654 | 13 |
| TA395 | 3.0 | 7.0 | 172 | 4.0 | 259 | 526900 | 7452000 | 654 | 13 |
| TA396 | 4.0 | 4.0 | 263 | 6.0 | 436 | 526900 | 7451900 | 654 | 10 |
| TA398 | 2.0 | 8.0 | 185 | 4.0 | 420 | 526700 | 7452250 | 652 | 13 |
| TA399 | 2.0 | 6.0 | 393 | 6.0 | 863 | 526700 | 7452150 | 651 | 10 |
| TA406 | 1.0 | 5.0 | 119 | 5.0 | 286 | 526500 | 7452150 | 651 | 10 |
| TA407 | 3.0 | 8.0 | 549 | 8.0 | 2341 | 526500 | 7452250 | 651 | 13 |
| TA408 | 3.0 | 3.0 | 103 | 4.0 | 159 | 526500 | 7452350 | 651 | 7 |
| TA410 | 1.0 | 1.0 | 128 | 1.0 | 128 | 526300 | 7452000 | 648 | 7 |
| TA412 | 3.0 | 7.0 | 246 | 7.0 | 475 | 526900 | 7452300 | 655 | 13 |
| TA414 | 2.0 | 4.0 | 158 | 3.0 | 237 | 526700 | 7452350 | 653 | 7 |
| TA417 | 1.0 | 6.0 | 201 | 6.0 | 643 | 526300 | 7452300 | 648 | 10 |
| TA418 | 1.0 | 8.0 | 241 | 2.0 | 464 | 526300 | 7452400 | 647 | 10 |
| TA419 | 3.0 | 4.0 | 161 | 4.0 | 226 | 526300 | 7452500 | 648 | 10 |
| TA420 | 6.0 | 1.0 | 112 | 6.0 | 112 | 526300 | 7452600 | 649 | 10 |
| TA422 | 2.0 | 1.0 | 114 | 2.0 | 114 | 526100 | 7452200 | 646 | 7 |
| TA426 | 4.0 | 3.0 | 114 | 6.0 | 146 | 526100 | 7452600 | 646 | 10 |
| TA427 | 6.0 | 4.0 | 139 | 8.0 | 169 | 526100 | 7452700 | 646 | 13 |
| TA430 | 4.0 | 3.0 | 112 | 6.0 | 143 | 525900 | 7452600 | 644 | 10 |
| TA433 | 6.0 | 7.0 | 209 | 12.0 | 300 | 525700 | 7452600 | 641 | 16 |
| TA434 | 7.0 | 1.0 | 186 | 7.0 | 186 | 525700 | 7452500 | 642 | 10 |
| TA440 | 3.0 | 1.0 | 242 | 3.0 | 242 | 525700 | 7451900 | 641 | 7 |
| TA448 | 3.0 | 4.0 | 147 | 6.0 | 204 | 523900 | 7451000 | 623 | 10 |
| TA449 | 2.0 | 1.0 | 119 | 2.0 | 119 | 524100 | 7450950 | 623 | 7 |
| TA451 | 1.0 | 1.0 | 249 | 1.0 | 249 | 524100 | 7450750 | 625 | 7 |
| TA454 | 1.0 | 1.0 | 103 | 1.0 | 103 | 524300 | 7451100 | 625 | 7 |
| TA455 | 3.0 | 1.0 | 151 | 3.0 | 151 | 524300 | 7451000 | 626 | 7 |
| TA456 | 1.0 | 5.0 | 158 | 1.0 | 274 | 524300 | 7450900 | 627 | 7 |
| TA457 | 2.0 | 2.0 | 210 | 2.0 | 298 | 524300 | 7450800 | 626 | 7 |
| TA460 | 2.0 | 3.0 | 152 | 3.0 | 216 | 524500 | 7451000 | 628 | 7 |
| TA461 | 3.0 | 1.0 | 183 | 3.0 | 183 | 524700 | 7451000 | 629 | 7 |
| TA466 | 3.0 | 1.0 | 176 | 3.0 | 176 | 525100 | 7451300 | 635 | 7 |
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APPENDIX 1 (Table 1): Drill Hole Status and Intersections (continued)
| Hole ID | From (m) |
Thickness (m) |
eU3O8 (ppm) |
From (m) | eU3O8 max (over 1m) |
Easting | Northing | RL | TD (m) |
|---|---|---|---|---|---|---|---|---|---|
| TA472 | 3.0 | 5.0 | 135 | 6.0 | 197 | 524300 | 7452000 | 630 | 10 |
| TA477 | 3.0 | 3.0 | 177 | 4.0 | 196 | 523900 | 7452050 | 624 | 10 |
| TA478 | 3.0 | 2.0 | 162 | 4.0 | 168 | 523900 | 7451950 | 626 | 10 |
| TA527 | 8.0 | 1.0 | 107 | 8.0 | 107 | 528500 | 7451900 | 672 | 13 |
| TA528 | 5.0 | 5.0 | 163 | 6.0 | 234 | 528500 | 7452000 | 671 | 19 |
| TA531 | 7.0 | 1.0 | 109 | 7.0 | 109 | 529100 | 7452350 | 672 | 19 |
| TA537 | 7.0 | 7.0 | 117 | 10.0 | 191 | 528300 | 7451300 | 671 | 19 |
| TA538 | 9.0 | 3.0 | 138 | 9.0 | 168 | 528300 | 7451200 | 671 | 22 |
| TA538 | 16.0 | 1.0 | 118 | 16.0 | 118 | ||||
| TA539 | 9.0 | 5.0 | 127 | 10.0 | 161 | 528300 | 7451100 | 671 | 19 |
| TA546 | 11.0 | 12.0 | 118 | 111 | 118 | 528500 | 7451250 | 674 | 19 |
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APPENDIX 1: Drill Hole Status and Intersections
Table 2. Semi-regional Drill Hole Status – Intersections >100ppm eU3O8 over 1m (21 Holes drilled in December 2018 and February 2019)
| TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING | TUMAS CENTRAL - EXPLORATION DRILLING |
|---|---|---|---|---|---|---|---|---|---|
| Hole ID | From (m) |
Thickness (m) |
eU3O8 (ppm) |
From (m) | eU3O8 max (over 1m) |
Easting | Northing | RL | TD (m) |
| TW00002 | 2.0 | 2.0 | 202 | 3.0 | 227 | 498800 | 7467800 | 331 | 13 |
| TW00004 | 4.0 | 2.0 | 109 | 4.0 | 117 | 498800 | 7467400 | 329 | 43 |
| TW00006 | 2.0 | 7.0 | 156 | 4.0 | 251 | 497200 | 7467800 | 322 | 55 |
| TW00008 | 3.0 | 1.0 | 468 | 3.0 | 468 | 497200 | 7468200 | 320 | 49 |
| TW00015 | 3.0 | 1.0 | 138 | 3.0 | 138 | 498400 | 7467650 | 328 | 25 |
| TW00016 | 3.0 | 2.0 | 297 | 4.0 | 493 | 498400 | 7467750 | 328 | 25 |
| TW00019 | 8.0 | 1.0 | 132 | 8.0 | 132 | 497600 | 7467800 | 322 | 25 |
| TW00020 | 2.0 | 9.0 | 232 | 5.0 | 645 | 497600 | 7467700 | 322 | 19 |
| TW00021 | 3.0 | 7.0 | 274 | 6.0 | 522 | 497600 | 7467600 | 322 | 19 |
| TW00022 | 2.0 | 11.0 | 195 | 11.0 | 429 | 497800 | 7467600 | 325 | 25 |
| TW00023 | 2.0 | 2.0 | 230 | 3.0 | 257 | 497800 | 7467700 | 325 | 25 |
| TW00024 | 2.0 | 2.0 | 244 | 3.0 | 285 | 497800 | 7467800 | 324 | 25 |
| TW00025 | 1.0 | 3.0 | 235 | 3.0 | 323 | 498000 | 7467700 | 325 | 25 |
| TW00026 | 2.0 | 8.0 | 385 | 7.0 | 988 | 498000 | 7467600 | 326 | 25 |
| 13.0 | 6.0 | 132 | 18.0 | 333 | |||||
| 22.0 | 1.0 | 117 | 22.0 | 117 | |||||
| TW00027 | 6.0 | 1.0 | 137 | 6.0 | 137 | 498000 | 7467500 | 325 | 19 |
| TW00028 | 4.0 | 8.0 | 498 | 10.0 | 1639 | 497800 | 7467500 | 325 | 19 |
| TW00030 | 9.0 | 1.0 | 133 | 9.0 | 133 | 497600 | 7467500 | 322 | 19 |
| TW00033 | 2.0 | 5.0 | 494 | 6.0 | 726 | 498200 | 7467600 | 327 | 19 |
| TW00034 | 13.0 | 2.0 | 125 | 14.0 | 149 | 497200 | 7467700 | 322 | 25 |
| 17.0 | 1.0 | 147 | 17.0 | 147 | |||||
| TW00038 | 4.0 | 4.0 | 116 | 4.0 | 159 | 497400 | 7467700 | 322 | 25 |
| 11.0 | 8.0 | 105 | 11.0 | 248 | |||||
| TW00042 | 8.0 | 1.0 | 348 | 8.0 | 348 | 498400 | 7467500 | 327 | 25 |
Page 14 of 30
APPENDIX 1: Drill Hole Status and Intersections
Table 3. Drill Hole Locations – 255 drill holes drilled December 2018 to 12 April 2019
| Tumas 1 East(EPL3497) | Tumas 1 East(EPL3497) | Tumas 1 East(EPL3497) | Tumas 1 East(EPL3497) | Tumas 1 East(EPL3497) |
|---|---|---|---|---|
| (211 holes completed from March | to April 2018) | |||
| Hole ID | Easting | Northing | RL | TD(m) |
| TA337 | 527700 | 7450500 | 670 | 10 |
| TA338 | 527700 | 7450400 | 669 | 13 |
| TA339 | 527700 | 7450300 | 669 | 10 |
| TA340 | 527700 | 7450200 | 670 | 16 |
| TA341 | 527700 | 7450100 | 671 | 13 |
| TA342 | 527700 | 7450000 | 670 | 13 |
| TA343 | 527900 | 7450500 | 674 | 7 |
| TA344 | 527900 | 7450400 | 674 | 13 |
| TA345 | 527900 | 7450300 | 673 | 7 |
| TA346 | 528100 | 7451250 | 671 | 16 |
| TA347 | 528100 | 7451350 | 671 | 16 |
| TA348 | 528100 | 7451450 | 670 | 22 |
| TA349 | 528100 | 7451550 | 669 | 19 |
| TA350 | 528100 | 7451650 | 669 | 19 |
| TA351 | 528100 | 7451750 | 669 | 16 |
| TA352 | 528100 | 7451850 | 668 | 10 |
| TA353 | 528300 | 7451700 | 671 | 19 |
| TA354 | 528300 | 7451800 | 672 | 16 |
| TA355 | 528300 | 7451900 | 669 | 10 |
| TA356 | 528300 | 7451600 | 669 | 19 |
| TA357 | 528300 | 7451500 | 671 | 19 |
| TA358 | 528300 | 7451400 | 671 | 22 |
| TA359 | 528500 | 7451650 | 672 | 13 |
| TA360 | 528500 | 7451550 | 672 | 13 |
| TA361 | 528500 | 7451450 | 672 | 10 |
| TA362 | 528500 | 7451350 | 674 | 19 |
| TA363 | 528700 | 7451850 | 671 | 7 |
| TA364 | 528700 | 7451950 | 672 | 4 |
| TA365 | 528700 | 7452050 | 672 | 4 |
| TA366 | 528700 | 7452150 | 673 | 19 |
| TA367 | 528700 | 7452250 | 675 | 16 |
| TA368 | 528700 | 7452350 | 673 | 7 |
| TA369 | 527700 | 7451950 | 661 | 13 |
| TA370 | 527700 | 7451850 | 662 | 16 |
Page 15 of 30
APPENDIX 1 (Table 3): Drill Hole Status and Intersections (continued)
| Hole ID | Easting | Northing | RL | TD(m) |
|---|---|---|---|---|
| TA371 | 527700 | 7451750 | 664 | 16 |
| TA372 | 527700 | 7451650 | 665 | 16 |
| TA373 | 527700 | 7451550 | 665 | 16 |
| TA374 | 527700 | 7451450 | 667 | 10 |
| TA375 | 527700 | 7452050 | 661 | 13 |
| TA376 | 527500 | 7451950 | 661 | 13 |
| TA377 | 527500 | 7451850 | 660 | 19 |
| TA378 | 527500 | 7451750 | 660 | 19 |
| TA379 | 527500 | 7451650 | 662 | 7 |
| TA380 | 527500 | 7452050 | 660 | 10 |
| TA381 | 527500 | 7452150 | 659 | 7 |
| TA382 | 527300 | 7452100 | 658 | 7 |
| TA383 | 527300 | 7452000 | 658 | 13 |
| TA384 | 527300 | 7451900 | 658 | 13 |
| TA385 | 527300 | 7451800 | 660 | 13 |
| TA386 | 527300 | 7451700 | 661 | 13 |
| TA387 | 527300 | 7451600 | 661 | 10 |
| TA388 | 527100 | 7452150 | 654 | 7 |
| TA389 | 527100 | 7452050 | 655 | 13 |
| TA390 | 527100 | 7451950 | 657 | 13 |
| TA391 | 527100 | 7451850 | 657 | 16 |
| TA392 | 527100 | 7451750 | 657 | 10 |
| TA393 | 526900 | 7452200 | 654 | 10 |
| TA394 | 526900 | 7452100 | 654 | 13 |
| TA395 | 526900 | 7452000 | 654 | 13 |
| TA396 | 526900 | 7451900 | 654 | 10 |
| TA397 | 526900 | 7451800 | 655 | 7 |
| TA398 | 526700 | 7452250 | 652 | 13 |
| TA399 | 526700 | 7452150 | 651 | 10 |
| TA400 | 526700 | 7452050 | 650 | 7 |
| TA401 | 526700 | 7451950 | 650 | 7 |
| TA402 | 526700 | 7451850 | 649 | 7 |
| TA403 | 526500 | 7451850 | 651 | 4 |
| TA404 | 526500 | 7451950 | 651 | 4 |
| TA405 | 526500 | 7452050 | 651 | 4 |
| TA406 | 526500 | 7452150 | 651 | 10 |
| TA407 | 526500 | 7452250 | 651 | 13 |
Page 16 of 30
APPENDIX 1 (Table 3): Drill Hole Status and Intersections (continued)
| Hole ID | Easting | Northing | RL | TD(m) |
|---|---|---|---|---|
| TA408 | 526500 | 7452350 | 651 | 7 |
| TA409 | 526300 | 7451900 | 647 | 4 |
| TA410 | 526300 | 7452000 | 648 | 7 |
| TA411 | 526300 | 7452100 | 650 | 7 |
| TA412 | 526900 | 7452300 | 655 | 13 |
| TA413 | 526900 | 7452400 | 654 | 10 |
| TA414 | 526700 | 7452350 | 653 | 7 |
| TA415 | 526500 | 7452450 | 651 | 4 |
| TA416 | 526300 | 7452200 | 650 | 7 |
| TA417 | 526300 | 7452300 | 648 | 10 |
| TA418 | 526300 | 7452400 | 647 | 10 |
| TA419 | 526300 | 7452500 | 648 | 10 |
| TA420 | 526300 | 7452600 | 649 | 10 |
| TA421 | 526100 | 7452100 | 647 | 7 |
| TA422 | 526100 | 7452200 | 646 | 7 |
| TA423 | 526100 | 7452300 | 646 | 7 |
| TA424 | 526100 | 7452400 | 647 | 4 |
| TA425 | 526100 | 7452500 | 647 | 4 |
| TA426 | 526100 | 7452600 | 646 | 10 |
| TA427 | 526100 | 7452700 | 646 | 13 |
| TA428 | 526100 | 7452800 | 647 | 7 |
| TA429 | 525900 | 7452500 | 645 | 7 |
| TA430 | 525900 | 7452600 | 644 | 10 |
| TA431 | 525900 | 7452700 | 643 | 7 |
| TA432 | 525700 | 7452700 | 643 | 7 |
| TA433 | 525700 | 7452600 | 641 | 16 |
| TA434 | 525700 | 7452500 | 642 | 10 |
| TA435 | 525700 | 7452400 | 643 | 7 |
| TA436 | 525700 | 7452300 | 643 | 7 |
| TA437 | 525700 | 7452200 | 643 | 7 |
| TA438 | 525700 | 7452100 | 643 | 7 |
| TA439 | 525700 | 7452000 | 642 | 7 |
| TA440 | 525700 | 7451900 | 641 | 7 |
| TA441 | 525700 | 7451800 | 643 | 7 |
| TA442 | 525700 | 7451700 | 641 | 7 |
| TA443 | 523900 | 7450450 | 620 | 7 |
| TA444 | 523900 | 7450550 | 621 | 7 |
Page 17 of 30
APPENDIX 1 (Table 3): Drill Hole Status and Intersections (continued)
| Hole ID | Easting | Northing | RL | TD(m) |
|---|---|---|---|---|
| TA445 | 523900 | 7450650 | 623 | 7 |
| TA446 | 523900 | 7450800 | 623 | 7 |
| TA447 | 523900 | 7450900 | 623 | 7 |
| TA448 | 523900 | 7451000 | 623 | 10 |
| TA449 | 524100 | 7450950 | 623 | 7 |
| TA450 | 524100 | 7450850 | 623 | 7 |
| TA451 | 524100 | 7450750 | 625 | 7 |
| TA452 | 524100 | 7450650 | 624 | 7 |
| TA453 | 524100 | 7450550 | 623 | 7 |
| TA454 | 524300 | 7451100 | 625 | 7 |
| TA455 | 524300 | 7451000 | 626 | 7 |
| TA456 | 524300 | 7450900 | 627 | 7 |
| TA457 | 524300 | 7450800 | 626 | 7 |
| TA458 | 524300 | 7450700 | 626 | 7 |
| TA459 | 524500 | 7451100 | 628 | 7 |
| TA460 | 524500 | 7451000 | 628 | 7 |
| TA461 | 524700 | 7451000 | 629 | 7 |
| TA462 | 524700 | 7451100 | 627 | 10 |
| TA463 | 524700 | 7451200 | 629 | 7 |
| TA464 | 524700 | 7451350 | 629 | 7 |
| TA465 | 525100 | 7451200 | 634 | 7 |
| TA466 | 525100 | 7451300 | 635 | 7 |
| TA467 | 525100 | 7451400 | 635 | 4 |
| TA468 | 525100 | 7451750 | 636 | 7 |
| TA469 | 525100 | 7451850 | 637 | 7 |
| TA470 | 525100 | 7451950 | 638 | 7 |
| TA471 | 525100 | 7452050 | 638 | 7 |
| TA472 | 524300 | 7452000 | 630 | 10 |
| TA473 | 524300 | 7452100 | 631 | 7 |
| TA474 | 524300 | 7452200 | 631 | 4 |
| TA475 | 524300 | 7451900 | 628 | 7 |
| TA476 | 523900 | 7452150 | 625 | 4 |
| TA477 | 523900 | 7452050 | 624 | 10 |
| TA478 | 523900 | 7451950 | 626 | 10 |
| TA479 | 523900 | 7451850 | 625 | 4 |
| TA480 | 523900 | 7451750 | 626 | 4 |
| TA481 | 523900 | 7451650 | 624 | 4 |
Page 18 of 30
APPENDIX 1 (Table 3): Drill Hole Status and Intersections (continued)
| Hole ID | Easting | Northing | RL | TD(m) |
|---|---|---|---|---|
| TA482 | 523900 | 7451550 | 622 | 4 |
| TA483 | 523500 | 7451400 | 618 | 4 |
| TA484 | 523500 | 7451300 | 618 | 7 |
| TA485 | 523500 | 7451200 | 619 | 7 |
| TA486 | 523500 | 7451100 | 618 | 7 |
| TA487 | 523500 | 7451000 | 618 | 4 |
| TA488 | 523500 | 7450900 | 617 | 7 |
| TA489 | 523500 | 7450800 | 617 | 7 |
| TA490 | 523500 | 7450700 | 618 | 4 |
| TA491 | 523300 | 7450700 | 618 | 7 |
| TA492 | 523300 | 7450600 | 618 | 4 |
| TA493 | 523300 | 7450800 | 617 | 7 |
| TA494 | 523300 | 7450900 | 616 | 4 |
| TA495 | 522900 | 7450300 | 611 | 4 |
| TA496 | 522900 | 7450400 | 611 | 7 |
| TA497 | 522900 | 7450500 | 611 | 7 |
| TA498 | 523100 | 7450450 | 611 | 7 |
| TA499 | 523100 | 7450550 | 611 | 4 |
| TA500 | 523300 | 7450400 | 611 | 7 |
| TA501 | 523300 | 7450350 | 611 | 7 |
| TA502 | 523500 | 7450300 | 611 | 7 |
| TA503 | 523500 | 7450250 | 611 | 7 |
| TA504 | 526700 | 7449850 | 660 | 4 |
| TA505 | 526700 | 7449950 | 658 | 4 |
| TA506 | 526700 | 7450050 | 657 | 4 |
| TA507 | 526500 | 7449900 | 655 | 4 |
| TA508 | 526500 | 7450000 | 654 | 4 |
| TA509 | 526300 | 7449950 | 654 | 4 |
| TA510 | 526300 | 7450050 | 652 | 4 |
| TA511 | 526100 | 7450100 | 651 | 4 |
| TA512 | 526100 | 7450150 | 651 | 7 |
| TA513 | 525500 | 7450100 | 642 | 7 |
| TA514 | 525500 | 7450200 | 641 | 4 |
| TA515 | 524900 | 7450200 | 637 | 10 |
| TA516 | 524900 | 7450300 | 637 | 4 |
| TA517 | 524700 | 7452300 | 633 | 4 |
| TA518 | 524700 | 7452400 | 633 | 4 |
Page 19 of 30
APPENDIX 1 (Table 3): Drill Hole Status and Intersections (continued)
| Hole ID | Easting | Northing | RL | TD(m) |
|---|---|---|---|---|
| TA519 | 524700 | 7452500 | 634 | 7 |
| TA520 | 523500 | 7451700 | 622 | 10 |
| TA521 | 523500 | 7451800 | 622 | 4 |
| TA522 | 523500 | 7451900 | 622 | 4 |
| TA523 | 522500 | 7451100 | 611 | 4 |
| TA524 | 522500 | 7451200 | 611 | 4 |
| TA525 | 522500 | 7451300 | 611 | 4 |
| TA526 | 528500 | 7451800 | 673 | 7 |
| TA527 | 528500 | 7451900 | 672 | 13 |
| TA528 | 528500 | 7452000 | 671 | 19 |
| TA529 | 528500 | 7452100 | 672 | 19 |
| TA530 | 529100 | 7452250 | 672 | 16 |
| TA531 | 529100 | 7452350 | 672 | 19 |
| TA532 | 529100 | 7452450 | 672 | 10 |
| TA533 | 529100 | 7452550 | 672 | 4 |
| TA534 | 529500 | 7452250 | 672 | 4 |
| TA535 | 529500 | 7452350 | 672 | 10 |
| TA536 | 529500 | 7452450 | 672 | 13 |
| TA537 | 528300 | 7451300 | 671 | 19 |
| TA538 | 528300 | 7451200 | 671 | 22 |
| TA539 | 528300 | 7451100 | 671 | 19 |
| TA540 | 528150 | 7451000 | 674 | 10 |
| TA541 | 528250 | 7451000 | 674 | 10 |
| TA542 | 528350 | 7451000 | 674 | 10 |
| TA543 | 528450 | 7451000 | 674 | 10 |
| TA544 | 528500 | 7450950 | 674 | 10 |
| TA545 | 528500 | 7451050 | 674 | 13 |
| TA546 | 528500 | 7451150 | 674 | 16 |
| TA547 | 528500 | 7451250 | 674 | 19 |
Page 20 of 30
APPENDIX 1 (Table 3): Drill Hole Status and Intersections (continued)
| Tumas Central (EPL3496) | Tumas Central (EPL3496) | Tumas Central (EPL3496) | Tumas Central (EPL3496) | |
|---|---|---|---|---|
| (47 holes | completed from Dec2018 | to Feb2019) | ||
| Hole ID | Easting | Northing | RL | TD (m) |
| TW00001 | 498800 | 7468000 | 331 | 13 |
| TW00002 | 498800 | 7467800 | 331 | 13 |
| TW00003 | 498800 | 7467600 | 329 | 37 |
| TW00004 | 498800 | 7467400 | 329 | 43 |
| TW00005 | 498800 | 7468200 | 329 | 61 |
| TW00006 | 497200 | 7467800 | 322 | 55 |
| TW00007 | 497200 | 7468000 | 320 | 67 |
| TW00008 | 497200 | 7468200 | 320 | 49 |
| TW00009 | 497200 | 7468400 | 322 | 37 |
| TW00010 | 497200 | 7468600 | 321 | 37 |
| TW00011 | 498000 | 7467900 | 325 | 43 |
| TW00012 | 498000 | 7468100 | 325 | 61 |
| TW00013 | 498000 | 7468300 | 325 | 61 |
| TW00014 | 498000 | 7468500 | 326 | 61 |
| TW00015 | 498400 | 7467650 | 328 | 25 |
| TW00016 | 498400 | 7467750 | 328 | 25 |
| TW00017 | 498400 | 7467850 | 328 | 25 |
| TW00018 | 498400 | 7467950 | 328 | 19 |
| TW00019 | 497600 | 7467800 | 322 | 25 |
| TW00020 | 497600 | 7467700 | 322 | 19 |
| TW00021 | 497600 | 7467600 | 322 | 19 |
| TW00022 | 497800 | 7467600 | 325 | 25 |
| TW00023 | 497800 | 7467700 | 325 | 25 |
| TW00024 | 497800 | 7467800 | 324 | 25 |
| TW00025 | 498000 | 7467700 | 325 | 25 |
| TW00026 | 498000 | 7467600 | 326 | 25 |
| TW00027 | 498000 | 7467500 | 325 | 19 |
Page 21 of 30
APPENDIX 1 (Table 3): Drill Hole Status and Intersections (continued)
| Hole ID | Easting | Northing | RL | TD (m) |
|---|---|---|---|---|
| TW00028 | 497800 | 7467500 | 325 | 19 |
| TW00029 | 497800 | 7467400 | 325 | 7 |
| TW00030 | 497600 | 7467500 | 322 | 19 |
| TW00031 | 498200 | 7467800 | 326 | 25 |
| TW00032 | 498200 | 7467700 | 326 | 19 |
| TW00033 | 498200 | 7467600 | 327 | 19 |
| TW00034 | 497200 | 7467700 | 322 | 25 |
| TW00035 | 497200 | 7467600 | 322 | 19 |
| TW00036 | 497200 | 7467500 | 322 | 13 |
| TW00037 | 497200 | 7467400 | 322 | 7 |
| TW00038 | 497400 | 7467700 | 322 | 25 |
| TW00039 | 497400 | 7467600 | 322 | 7 |
| TW00040 | 497400 | 7467500 | 322 | 7 |
| TW00041 | 498200 | 7467500 | 325 | 13 |
| TW00042 | 498400 | 7467500 | 327 | 25 |
| TW00043 | 498600 | 7467800 | 329 | 25 |
| TW00044 | 498600 | 7467700 | 329 | 25 |
| TW00045 | 498600 | 7467600 | 328 | 25 |
| TW00046 | 498600 | 7467500 | 328 | 25 |
| TW00047 | 497400 | 7467800 | 322 | 25 |
Page 22 of 30
APPENDIX 2: Table 1 Report (JORC Code 2012 addition)
JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| Sampling techniques | • Nature and quality of sampling (eg cut channels, random | • | The current drilling relies on down hole gamma data from calibrated probes |
| chips, or specific specialised industry standard measurement | which were converted into equivalent uranium values (eU3O8) by experienced | ||
| 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 |
DYL personnel and will be confirmed by a competent person (geophysicist). First geochemical assay data are expected in May 2019. Previous drill data used in this report includes both geochemical assay data (U3O8) and down hole gamma derived equivalent uranium values (eU3O8). |
||
| representivity and the appropriate calibration of any | • | Appropriate factors were applied to all downhole gamma counting results to | |
| measurement tools or systems used. | make allowance for drill rod thickness, gamma probe dead times and | ||
| • Aspects of the determination of mineralisation that are | incorporating all other applicable calibration factors. | ||
| Material to the Public Report. • In cases where ‘industry standard’ work has been done this |
Total gamma eU3O8 | ||
| 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 |
• • |
33mm Auslog total gamma probes were used and operated by company personnel. Gamma probes were calibrated at Pelindaba, South Africa, in May 2007 and in |
|
| there is coarse gold that has inherent sampling problems. | December 2007. | ||
| Unusual commodities or mineralisation types (eg submarine | • | Between 2008 and 2013 sensitivity checks were conducted by periodic re- | |
| nodules) may warrant disclosure of detailed information. | logging of a test hole (Hole-ALAD1480) to confirm operation. | ||
| • | Auslog probes were again re-calibrated at the calibration pit located at Langer | ||
| Heinrich Mine site in December 2014, May 2015, August 2017 and July 2018. | |||
| • | During the drilling, the probes were checked daily against a standard source. | ||
| • | Gamma measurements were taken at 5 cm intervals at a logging speed of | ||
| approximately 2m per minute. | |||
| • | Probing was done immediately after drilling mainly through the drill rods and in | ||
| some cases in the open holes. Rod factors have been established once | |||
| sufficient in rod and open hole data were available to compensate for the | |||
| reducedgamma counts when loggingwas done through the drill rods. No |
Page 23 of 30
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| correction for water was done. The drill holes were dry. | |||
| • | All gamma measurements were corrected for dead time which is unique to the | ||
| probe. | |||
| • | All corrected (dead time and rod factor) gamma values were converted to | ||
| equivalent eU3O8values over the same intervals using the probe-specific K- | |||
| factor. | |||
| • | Disequilibrium studies on 22 samples by ANSTO Minerals in 2008 confirmed | ||
| that the U238decay chains of the wider Tumas deposit are within an analytical | |||
| error of ± 10%, in secular equilibrium. | |||
| Chemical assay data | |||
| • | Geochemical samples were derived from Reverse Circulation (RC) drilling at | ||
| intervals of 1 m. Samples were spilt at the drill site using either a riffle or cone | |||
| splitter to obtain a 1 to 4 kg sample from which 90 g will be pulverized to | |||
| produce a subset for XRF-analysis. | |||
| • | It is planned that 10 to 20% of the mineralisation from the Tumas East drilling | ||
| will be assayed for U3O8by loose powder XRF or ICP-MS. | |||
| • | In the 2017 and 2018 resource drilling programs a total of 1,305 samples, | ||
| including duplicates, blanks and standards were submitted to ALS in Perth for | |||
| U3O8analysis following the procedure above for confirmatory assay. | |||
| • | These previous assay results confirm equivalent uranium grades correctly | ||
| correlated to the assay results and remain within a statistically acceptable | |||
| margin of error. | |||
| Drilling techniques | • Drill type (eg core, reverse circulation, open-hole hammer, | • | RC drilling is being used for the Tumas 1 East and Central drilling program. |
| 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 |
• |
All holes are being drilled vertically and intersections measured present true thicknesses. |
|
| _ifso, by what method, etc). _ | |||
| Drill sample recovery | • Method of recording and assessing core and chip sample | • | Drill chip recoveries are good at around 90%. |
| recoveries and results assessed. | • | Drill chip recoveries were assessed by weighing 1 m drill chip samples at the | |
| • Measures taken to maximise sample recovery and ensure representative nature of the samples. |
• | drill site. Weights were recorded in sample tag books. Sample loss was minimised by placingthe sample bags directlyunderneath |
Page 24 of 30
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| • Whether a relationship exists between sample recovery and | cyclone/splitter | ||
| grade and whether sample bias may have occurred due to | |||
| preferential loss/gainof fine/coarse material. | |||
| Logging | • Whether core and chip samples have been geologically and | • | All drill holes are being geologically logged. |
| 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 |
• • |
The logging is qualitative in nature. The lithology type is being determined for all samples. Other parameters routinely logged include colour, colour intensity, weathering, oxidation, grain size, carbonate (CaCO3) content, sample condition (wet, dry) and total gamma count (by hand held Rad-Eye scintillometer). |
|
| logged. | • | Lithology codes were used to generate wireframes for the palaeotopography of | |
| the palaeochannel. | |||
| • | This information was used in planning drill hole locations. | ||
| Sub-sampling | • If core, whether cut or sawn and whether quarter, half or all | • | A portable 2-tier (75%/25%) splitter was used to treat a full 1m sample from the |
| techniques and sample preparation |
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 |
• • |
cyclone into an appropriate size assay sample. All sampling was dry. The above sub-sampling techniques are common industry practice and appropriate. Sample sizes are considered appropriate to the grain size of the material being sampled. |
| stages to maximise representivity of samples. | • | Duplicates will be inserted into the assay batch at an approximate rate of one | |
| • Measures taken to ensure that the sampling is representative | for every 10 samples which is compatible with industry norm. | ||
| 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 |
• |
Standards and blank samples will be inserted at an approximate rate of one each for every 20 samples. |
|
| material being sampled. | |||
| Quality of assay data | • The nature, quality and appropriateness of the assaying and |
• | The analytical method employed will be XRF. The technique is industry |
| and laboratory tests | laboratory procedures used and whether the technique is | standard and considered appropriate. | |
| 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. |
• • |
The analytical method employed for an earlier drill program in 2017 was ICP- MS which is also considered industry standard and appropriate as well. Downhole gamma tools were used as explained under ‘Sampling techniques’. This is the principal evaluating technique. |
|
| • Nature of quality control procedures adopted (e.g. standards, |
Page 25 of 30
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| blanks, duplicates, external laboratory checks) and whether | |||
| acceptable levels of accuracy (i.e. lack of bias) and precision | |||
| _have been established. _ | |||
| Verification of | • The verification of significant intersections by either | • | Geology was directly recorded into a tablet in the field and sample tag books |
| sampling and | independent or alternative company personnel. | filed in at the drill site. | |
| assaying | • 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. |
• • |
The drill data of those logs and tag books (lithology, sample specifications etc.) were transferred by designated personnel into a geological database. Equivalent eU3O8values have previously been and were for the current program calculated from raw gamma files by applying calibration factors and |
| casing factors where applicable. | |||
| • | The adjustment factors were stored in the database. | ||
| • | Equivalent U3O8data were composited to 1m intervals. | ||
| • | The ratio of eU3O8vs assayed U3O8for matching composites will be used to | ||
| quantify the statistical error. | |||
| Location of data | • Accuracy and quality of surveys used to locate drill holes | • | The collars are being surveyed by in-house operators using a differential GPS. |
| points | (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. |
• • |
All drill holes are vertical and shallow; therefore, no down-hole surveying was required. The grid system is World Geodetic System (WGS) 1984, Zone 33. |
| Data spacing and | • Data spacing for reporting of Exploration Results. | • | The data spacing and distribution is optimized along channel direction along |
| distribution | • Whether the data spacing and distribution is sufficient to | North-South or East West lines. Where the drilling program was exploratory in | |
| 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. |
• | nature and drill hole spacing varied at 100 to 200m along 200 to 800m spaced lines. At Tumas 1 East the resource drilling varies between 50m to 100m drill hole spacing along 200m spaced lines. The 100m by 200m drill hole spacing is considered sufficient to define an |
|
| inferred resource At Tumas 1 East in the future. | |||
| • | The total gamma count data, which is recorded at 5 cm intervals, was used to | ||
| calculate equivalent uranium values (eU3O8) which were composited to 1 m | |||
| composites down hole. |
Page 26 of 30
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| Orientation of data in | • Whether the orientation of sampling achieves unbiased |
• | Uranium mineralisation is strata bound and distributed in fairly continuous |
| relation to geological | sampling of possible structures and the extent to which this is | horizontal layers. Holes are being drilled vertically and mineralised intercepts | |
| structure | 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. |
• | represent the true width. All holes were sampled down-hole from surface. Geochemical samples are being collected at 1 m intervals. Total-gamma count data is being collected at 5 cm intervals. |
| Sample security | • The measures taken to ensure sample security. | • | 1m RC drill chip samples were prepared at the drill site. The assay samples |
| were stored in plastic bags. Sample tags were placed inside the bags. The | |||
| samples were placed into plastic crates and transported from the drill site to | |||
| RMR’s site premises in Swakopmund by company personnel, prior to analyses | |||
| and from there to the external laboratories. | |||
| • | Upon completion of the assay work the remainder of the drill chip sample bags | ||
| for each hole will be packed back into crates and then stored in designated | |||
| containers in chronological order, locked up and kept safe at RMR’s dedicated | |||
| sample storage yard at Rocky Point located outside Swakopmund. | |||
| Audits or reviews | • The results of any audits or reviews of sampling techniques | • | D. M. Barrett (PhD MAIG) conducted an audit of gross count gamma logging |
| and data. | procedures and log reduction methods used by Deep Yellow Limited. | ||
| • | He concludes his audit commenting: “In summary, it is my belief that the | ||
| equivalent uranium grades reported by Reptile from their gamma logging | |||
| program are reliable and are probably within a few percent to the true grade”. |
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APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Mineral tenement and land | • Type, reference name/number, location and | • | The work to which the Exploration Results relate was undertaken on exclusive |
| tenure status | ownership including agreements or material issues | prospecting grants EPL 3496 and EPL3497. | |
| 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 |
• |
The EPLs were originally granted to Reptile Uranium Namibia (Pty) Ltd (RUN) in 2006. The EPLs are in good standing and is valid until 05 June 2019. A renewal application for a two-year extension has been submitted to the Ministry of Mines and Energy and is expected to be granted. |
|
| reporting along with any known impediments to | • | The EPL is located within the Namib Naukluft-National Park in Namibia. | |
| obtaining a licence to operate in the area. | • | The EPL is subject to an agreement with a Namibian partner whereby the | |
| partner has the right to acquire 5% of the project for historical costs. | |||
| • | There are no known impediments to the project beyond Namibia’s standard | ||
| permitting procedures. | |||
| Exploration done by other | • Acknowledgment and appraisal of exploration by | • | Prior to RUN’s ownership of this EPL, extensive work was conducted by Anglo |
| parties | other parties. | American Prospecting Services (AAPS), General Mining and Falconbridge in | |
| the 1970s. | |||
| • | Assay results from the historical drilling are available to RUN on paper logs. | ||
| They were not captured digitally and were and will not be used for resource | |||
| estimation. | |||
| Geology | • Deposit type, geological setting and style of | • | Tumas East mineralisation occurs as secondary carnotite enrichment of |
| mineralisation. | variably calcretised palaeochannel and sheet wash sediments and adjacent | ||
| weathered bedrock. | |||
| • | Uranium mineralisation at Tumas is surficial, stratabound and hosted by | ||
| Cenozoic and possibly Tertiary sediments, which include from top to bottom | |||
| scree sand, gypcrete, calcareous sand and calcrete. | |||
| • | The majority of the mineralisation is hosted in calcrete. Locally, the underlying | ||
| weathered Proterozoic bedrock is occasionally also mineralized. | |||
| Drill hole Information | • A summary of all information material to the | • | 255 holes for a total of 3316m have been drilled in the current program up to |
| understanding of the exploration results including a |
Page 28 of 30
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | Commentary | Commentary | Commentary | Commentary |
|---|---|---|---|---|---|
| tabulation of the following information for all Material | the | 1st | of April 2019. | ||
drill holes:o easting and northing of the drill hole collaro elevation or RL (Reduced Level – elevation abovesea level in metres) of the drill hole collar o dip and azimuth of the hole |
• • |
All holes were drilled vertically and intersections measured present true thicknesses. The Table 3 in Appendix 1 lists all the drill hole locations. Tables 1 and 2 list the results of intersections greater than 100ppm eU3O8over 1m. |
|||
o down hole length and interception depth |
|||||
o 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. _ | |||||
| Data aggregation methods | • In reporting Exploration Results, weighting averaging | • | 5cm | intervals of down hole gamma counts per second (cps) logged inside the | |
| techniques, maximum and/or minimum grade | drill rods were composited into 1m down hole intervals showing greater than | ||||
| truncations (e.g. cutting of high grades) and cut-off grades are usually Material and should be stated. • Where aggregate intercepts incorporate short lengths |
• |
100cps values over 1m. No grade truncations were applied. |
|||
| of high-grade results and longer lengths of low-grade | |||||
| results, the procedure used for such aggregation | |||||
| should be stated and some typical examples of such | |||||
| aggregations should be shown in detail. | |||||
| • The assumptions used for any reporting of metal | |||||
| _equivalent values should be clearly stated. _ | |||||
| Relationship between | • These relationships are particularly important in the | • | The mineralisation is sub-horizontal and all drilling vertical, therefore, | ||
| mineralisation widths and intercept lengths |
reporting of Exploration Results. • If the geometry of the mineralisation with respect to |
mineralised intercepts are considered to represent true widths. | |||
| 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’). _ | |||||
| Diagrams | • Appropriate maps and sections (with scales) and | • | Appendix 1 (Tables 3) show all drill hole locations. Tables 1 and 2 list the | ||
| tabulations of intercepts should be included for any | anomalous intervals. | ||||
| significant discovery being reported These should include, but not be limited to a plan view of drill hole |
• | Maps and sections are included in the text. |
Page 29 of 30
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| collar locations and appropriate sectional views. | ||
| Balanced reporting | • Where comprehensive reporting of all Exploration | •Comprehensive reporting of all Exploration Results was practised on the |
| Results is not practicable, representative reporting of | completion of the drilling program. | |
| both low and high grades and/or widths should be | ||
| practiced to avoid misleading reporting of Exploration | ||
| _Results. _ | ||
| Other substantive | • Other exploration data, if meaningful and material, | •The wider area and Tumas deposit was subject to extensive drilling in the |
| exploration data | should be reported including (but not limited to): | 1970’s and 1980’s by Anglo American Prospecting Services, Falconbridge and |
| geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock |
General Mining. •An airborne EM survey conducted in 2009 better defined the broad palaeochannel system. |
|
| characteristics; potential deleterious or contaminating | •Downhole gamma-gamma density logging for bulk density was conducted by |
|
| substances. | Terratec on the Tumas 1 and 2 resources. | |
| Further work | • The nature and scale of planned further work (e.g. | •Further drilling work is planned in the Tumas 1 East area and at Tumas Central |
| tests for lateral extensions or depth extensions or | west of the currently defined Tumas 3 Resource and its extensions. | |
| large-scale step-out drilling). • Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this |
•At Tumas Central further extension drilling is expected as mineralisation is open along strike to the west and east. •Infill drilling for resource estimation work is planned as well. |
|
| information is not commercially sensitive. |
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