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Central Mount EL 25694 Annual Report Terra Search for Tianda Resources Sept 2008 Tianda Resources (Australia) Pty Ltd Annual Report EL 25694 Central Mount Northern Territory David Jenkins Charles Poynton Terra Search Pty Ltd For Tianda Resources September 2008 Perth, 22 nd September, 2008

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Page 1: EL 25694 Central MountAnnual Report - geoscience.nt.gov.au · A review of all available public information on EL 25694 Central Mount, was completed. This work identified two radiometric

Central Mount EL 25694 Annual Report    Terra Search for Tianda Resources Sept 2008 

Tianda Resources (Australia) Pty Ltd

Annual Report EL 25694 Central Mount

Northern Territory

David Jenkins Charles Poynton

Terra Search Pty Ltd For Tianda Resources

September 2008

Perth, 22nd September, 2008

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Executive Summary A review of all available public information on EL 25694 Central Mount, was completed. This work identified two radiometric anomalies coincident with granite outcrops, within which there were mapped pegmatite veins. A third anomalous area appeared to correspond with a drainage channel and was considered a potential site for a calcrete uranium deposit similar to Yeeleerie in Western Australia. The areas were visited and walked with an Exploranium GR135 PLUS gamma ray spectrometer, and sampled for analysis by ICP-MS. The first area visited revealed extensive outcrop of a hot plagioclase granite showing flow textures. Though there were only modest uranium assays of samples from this area (up to 23.3ppm) there were high thorium assays, up to 110ppm. On the eastern side of the tenement, another hot granite was found to have elevated uranium assays, up to 50ppm. Near the western boundary of the tenement, an outcrop of schist with an altered vein gave uranium assays of 14ppm and 21ppm. Nearby, an ironstone outcrop was found with very elevated uranium (61 – 85ppm) and a large area of radiometrically-active scree assayed 80ppm in a grab sample. This ironstone outcrop was a linear feature averaging two metres wide and nearly fifty metres long.

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Table of Contents Executive Summary ..................................................................................................................... i Table of Contents ....................................................................................................................... ii Table of Figures .......................................................................................................................... ii 1  Introduction ........................................................................................................................ 1 2  Location and access ............................................................................................................ 2 3  Tenement Status................................................................................................................. 3 4  Regional Geology ................................................................................................................ 4 5  Local Geology ...................................................................................................................... 5 6  Previous Work .................................................................................................................... 6 7  Geophysics .......................................................................................................................... 8 7.1  Airborne radiometrics ................................................................................................. 8 

8  Exploration Completed ..................................................................................................... 10 8.1  Exploration Model ..................................................................................................... 10 8.2  Navigation ................................................................................................................. 10 8.3  Field Work Undertaken ............................................................................................. 11 

9  ASTER ................................................................................................................................ 17 10  Conclusions ................................................................................................................... 21 11  Further work ................................................................................................................. 21 Appendix 1 Abbreviated ICP‐MS results for Central Mount rock chip samples. ..................... 22 Appendix 2 Full ICP‐MS assay results for EL 25694 ................................................................. 23 

Table of Figures Figure 1Location of EL 25694 Central Mount .......................................................................... 2 Figure 2 Sub Block Diagram EL 24694 .................................................................................... 3 Figure 3 Geology of EL 25694 .................................................................................................. 5 Figure 4 Historic exploration licenses in area of EL 25694 ...................................................... 6 Figure 5 Aeromagnetics over EL 25694 .................................................................................... 8 Figure 6 EL 25694 Mount Central uranium channel anomalies overlaid on 250k geology ...... 9 Figure 7 EL 25694 GPS base map ........................................................................................... 10 Figure 8 Photo 8109 muscovite granite with pegmatite vein .................................................. 12 Figure 9 Anomaly 6 sampling.................................................................................................. 13 Figure 10 Photo 8111 ............................................................................................................... 14 Figure 11 Photo 8135 sericite altered vein .............................................................................. 15 Figure 12 Anomaly 5 spectrometer results and outcrops......................................................... 16 Figure 13 EL 25694 ASTER clay image withrock chip locations (green triangles). ............. 17 Figure 14 EL25694 North area - clay alteration with ICP-MS U (black) and Th (red). Geology from 1:250k Mount Peake sheet. .............................................................................. 18 Figure 15 EL25694 East area - clay alteration with ICP-MS U (black) and Th (red). Geology outlines from 1:250k Mt Peake sheet ....................................................................................... 18 Figure 16 EL25694 West area - clay alteration with ICP-MS U (black) and Th (red). Geology outlines from 1:250k Mt Peake sheet ........................................................................ 19 Figure 17 EL25694 Red Gossan/Green alteration/Blue host mix ........................................... 20 Figure 18 EL25694 Red Gossan/Green alteration/Blue host mix with ICP-MS U, Th ........... 20

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1 Introduction The Central Mount project was identified as a prospective area by examination of publicly available geophysical datasets. This report covers exploration work undertaken by Tianda Resources (Australia) Pty Ltd over the EL 25694 for the period from the 23rd of September 2007 to 23rd of September 2008. Terra Search Pty Ltd, a consulting group with 20 years experience was contracted to complete exploration over this tenement. The models for mineralisation are either an unconformity-type uranium deposit similar to those of the Alligator River province in the north of the Northern Territory, pegmatite-hosted uranium-thorium deposits similar to those discovered southwest of the exploration license, or a sandstone-hosted paleochannel deposit similar to Honeymoon in South Australia. Uranium eroded from basement granites has been concentrated within chlorite-altered pelitic zones within sandstones for the unconformity style while paleochannels can provide sinks for uranium mobilized during weathering processes where suitable organic or carbonate material exists. The anomalous airborne radiometric occurrences were within three areas on the tenement. Two of the areas were over granite outcrops, while the third appeared to be in a drainage channel. The areas were visited and walked with an Exploranium GR135 PLUS gamma ray spectrometer, and sampled for analysis by ICP-MS.

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2 Location and access Exploration License EL 29694 is located about twenty kilometres west of the summit of Central Mount Stuart and is accessible from Stuart Highway by a turnoff 15km north of Ti Tree Aboriginal Community. This turnoff is also about 160km south of the Devils Marbles. The exploration tenement is adjacent to Aboriginal lands and its southern and western boundaries are determined by Aboriginal landholdings. The tenement is on Anningie Station, owned by Steve Fogarty. He can be contacted on (08) 8956 9748 or in Alice Springs on 8952 1750. As can be seen from the map in Figure 1, no drivable access to the exploration license was apparent. However, access was possible along a fenceline coincident with the western boundary of the tenement, which extended (almost) to the main road to Anningie Station homestead. This fenceline approaches to about a kilometre of the most promising uranium anomalism in the area.

Figure 1Location of EL 25694 Central Mount

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3 Tenement Status

EL 25694 has its boundaries as shown on Figure 2. It is altogether 31 graticular blocks, covering a total of 97.69 square kilometres. It was granted to Tianda Resources on the 23 August 2007 for a period of 6 years. The 31 sub-blocks are as follows: BID MAP Block No Sub-Blocks Alice Springs 1599 3 xyz Alice Springs 1600 1 v Alice Springs 1671 15 cdehjknopstuxyz Alice Springs 1672 12 abfghlmnqrvw

Figure 2 Sub Block Diagram EL 24694

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4 Regional Geology The Arunta Region is a complex basement inlier in central Australia that has undergone a prolonged history of sedimentation, magmatism and tectonism extending from the Palaeoproterozoic to the Palaeozoic. This interesting array of metamorphosed rock assemblages ranging from high-grade metamorphic to granite gneiss terrains is very prospective for mineral discoveries. The Arunta Region can be subdivided into three, largely fault-bounded areas with distinct geological histories; the Aileron, Warumpi and the Irindina Provinces. The presence of major structures also enhances the Provinces’ potential for ore deposits. The Aileron Province comprises greenschist to granulite facies metamorphic rocks with protolith ages in the range 1865 – 1710 Ma. It forms part of the North Australian Craton and is geologically continuous with the gold-bearing Tanami and Tennant Creek Regions to the north. In contrast, the Warumpi Province consists of amphibolite to granulite facies rocks with protolith ages in the range 1690 – 1600 Ma and is interpreted to be an exotic terrane that accreted to the southern margin of the North Australian Craton at 1640 Ma. The Irindina Province in the Harts Range area comprises Neoproterozoic to Cambrian metasediments that formed in a major depocentre within the Centralian Superbasin. It underwent high-grade metamorphism and deformation during the Ordovician (480 – 450 Ma). A number of metal occurrences of copper-lead-zinc, gold, tin, tungsten, tantalum, nickel and chromium are known in the Arunta Region. There is significant potential for gold in the northern and western Aileron Province adjacent to the Tanami area and untested base metal prospects in the Warumpi Province. The Anningie Tin Field is located about 20 kilometres west of the tenement.

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5 Local Geology The outline of the exploration license, overlaid on the 1:250000 geology of the Mt Peake sheet, is shown below. The geology of the Mount Central EL 25694 project is dominated by Proterozoic granite, overlain by Tertiary ferricrete and Quaternary alluvium. Several drainage systems are sourced from the granite, flowing to the northeast. These systems have potential for palaeochannel uranium enrichment and possible calcrete hosting of uranium. The map below shows a number of quartz and pegmatite veins throughout the granites in the tenement.

Figure 3 Geology of EL 25694

These pegmatite veins are a possible host for uranium mineralisation, and indeed the mineral occurrence data in the area shows pegmatite-hosted thorium-uranium deposits some thirty kilometres to the southwest of the tenement.

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6 Previous Work An evaluation of previous exploration in the area was undertaken. There had been eight previous tenements covering the area of interest and these are detailed below. Eight historic exploration licenses were found to intersect EL 25694. These were EL1447, EL1881, AP2854, EL9814, EL5985, EL5800, EL2437 and EL7557. Of these, the last (EL7557 had ten reports covering the period 1994- 1999. Of the ELs, 9814 exactly covered almost exactly the same ground as the existing tenement, but the abstract records the “no further work was conducted.” EL 7557 only covers a sliver of ground a block or two wide on the north and east of the tenement, while EL 1447 covered it all (and much more). The distribution of the more important of these historic exploration licenses is shown below…

Figure 4 Historic exploration licenses in area of EL 25694

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Historic EL Report comments EL 1447 CR1978-0039 Preliminary radiometric and geochemical results CR1979-0034 Negative uranium results, some potential for Sn. CR1979-0090 No significant quantities of tin or uranium found EL 1881 CR1979-0196 Anomalous radioactivity due to uranium locked on zircon CR1982-0327 Unmineralized skarn delineated CR1982-0055 Ground magnetic results AP 2854 CR1972-0029 lead-zinc in the shear zone at base of the complex EL 2437 CR1981-0138 Trace tantalite present EL 7557 CR1993-0085 1220 samples were collected CR1994-0383 drill programme at Green Prospect (EL7557) CR1996-0047 WMC 110 RC drill holes CR1996-0173 825 lag samples were taken CR1997-0205 752 lag samples were collected. CR1998-0060 382 vacuum drill holes CR1999-0028 [email protected]/t Au and [email protected]/t Au with [email protected] CR1999-0029 no anomalous gold and arsenic Reference to the geochemical database for the Northern Territory yielded a handful of uranium values within the tenement. A few historic stream sediment and rock chip samples were taken within the tenement. These are annotated on the geological map (figure 3), the most striking of them being a rock chip from the granite which assayed 10ppm U. It is probable that the zero values represent samples that were not assayed for uranium.

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7 Geophysics 7.1 Airborne radiometrics  The area was flown for magnetics and radiometric data, which is archived as the Mount Peake program. An image of the raw uranium data is shown below. This was acquired on a 400 metre line spacing which could well miss an economic mineralisation. The airborne magnetic image identifies granite outcrops as magnetic highs. The low magnetic areas are under sedimentary cover which probably does not account for the magnitude of the magnetic low. This suggests that the magnetic lows may be due to a different basement lithology.

Figure 5 Aeromagnetics over EL 25694

The publicly available Northern Territory airborne uranium data had the following appearance when the highest points were plotted as an overlay on the 1:250k geology map. A number of radiometric anomalies were identified and became the objectives of a reconnaissance exploration effort.

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Figure 6 EL 25694 Mount Central uranium channel anomalies overlaid on 250k geology

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8 Exploration Completed The exploration license was reconnoitred on July 5th and 6th, 2008. Access was from the road to Anningie Station from Stuart Highway. A recently-graded track led to Salt Well and then a way was picked through the scrub to the main radiometric anomalies. A total of about 21 kilometres of off-track driving was required.

8.1 Exploration Model  The 1:250,000 geological map showed pegmatites corresponding to airborne radiometric anomalies, these pegmatites being within mapped granites. A total of five radiometric anomalies of this nature were noted. The pegmatites were considered a potential host for uranium mineralisation. A sixth anomaly appeared to be associated with drainage and was thus a possible calcrete uranium deposit. This was on the western margin of the exploration license.

8.2 Navigation  The various radiometric anomalies were entered in GPS Trackmaker and then loaded into a Garmin Map60 instrument together with the exploration license boundaries. The anomalies could then be approached unambiguously in the field without reference to paper maps. This is particularly helpful in the absence of grid lines, tracks or any other reference. The base map used for the GPS is shown below.

Figure 7 EL 25694 GPS base map

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8.3 Field Work Undertaken  The first area visited comprised four anomalous lines of airborne radiometrics in the northeast of the exploration license. These were noted as Anomaly 1 to Anomaly 4. The field gamma ray spectrometer was taken on traverses to, along and around each of the anomalies to determine the source of the radiation anomaly. Particular care was taken to find pegmatites shown on the 1:250000 maps. MP01 at 320008E 7574590N was of a soil near a muscovite granite, with K=1.4%, U=31.2ppm and Th=0.3ppm. MP02 at 320042E 7574731N was a fine-grained light brown muscovite gneiss on a NE-striking hilltop. This gave K=1.4%, U=9.6ppm and Th=0.1ppm. A Niton XRF determination on a small chip from this location gave U < 30ppm, K=2.41%, Ba=1472ppm. ICP-MS analysis returned 3.2ppm U, 21.2ppm Th, 4.54% Fe and 89.3ppm Ce. MP03 at 320011E 7574700N was of a strongly-weathered medium grained granite, giving K=4.5%, U = 47ppm and Th = 3.3ppm. A Niton XRF determination gave U < 18, K=2.62%, Th = 138ppm and (spurious) Te = 117. ICP-MS results for this sample were 3.8ppm U, 106ppm Th, 290ppm P, and 286ppm Ce. MP04 at 319969E 7574700N was of a similar weathered granite, giving K=2.4%, U = 42ppm and Th = 5.8ppm. A Niton XRF determination gave K=3.2%, U < 22, Th = 167 and Te = 156. ICP-MS analysis gave 5.03ppm U, and extraordinary 110ppm Th, 1.94% Fe and 305ppm Ce. MP05 at 319639E 7574162N was of a Kfeldspar medium grained granite and containing K = 3.2%, U = 31.2ppm and Th = 3.7ppm. A Niton determination resulted in K = 3.63%, U < 17, Th < 9. ICP-MS returned 3.15ppm U, 10ppm Th and 14ppm Ce. MP06 at 319634E 7574159N in weathered muscovite granite contained K = 2.4%, U = 53.6ppm and Th = 0.0ppm. Niton XRF of this sample gave K = 2.93%, U = 26ppm and Th = 127. Barium was also recorded at 612ppm. ICP-MS returned 9.7ppm U, 96ppm Th, 260ppm P and 272ppm Ce. MP07 at 319627E 7574153N was in a coarse-grained muscovite granite and gave K = 3.5, U = 60.3 and Th = 6.7. A Niton XRF determination gave U = 69ppm, Th = 119, K=3.89% and (spurious) Te at 103ppm. ICP-MS analysis gave 23.3ppm U, 84.2ppm Th, 330ppm P, and 171.5ppm Ce. MP08 at 319545E 7574032N was at a very coarse grained, porphyritic granite containing large plagioclase laths 2 - 3 centimetres long in a groundmass of biotite, muscovite and quartz. Macroscopic flow textures were clearly visible in the extensive outcrop. This gave K

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= 2.0%, U = 29.7 and Th = 2.0ppm. Niton XRF gave K = 1.61%, U < 25, Th = 76ppm and (erroneous) Te at 361ppm. ICP-MS analysis gave 4.99ppm U, 58.6ppm Th, 390ppm P and 255ppm Ce. The hot area extended about 100m south of the location with count rates of 500-600cpm in plagioclase granite. MP09 was taken in the same plagioclase granite as the previous sample at 319196E and 7573919N. This gave K = 2.3, U = 32.5ppm and Th = 7.8ppm. Niton XRF had an outcome of K=4.05%, U = 27ppm, Th = 131ppm and Te = 140. ICP-MS analysis of this sample returned 8.47ppm U, 57.9ppm Th, 730ppm P and 184.6ppm Ce. Samples were taken at all but one of the above locations, the exception being MP01. MP10 at 319070E 7573935N was not sampled, but gave K =1.8%, U = 30.6 and Th = 0.5ppm. This, and MP11 and MP12, were in the same plagioclase porphyritic granite. MP13 was at a very coarse grained muscovite granite with pegmatite veining and has been recorded in photo 8109. It was taken at 319537E 7574071N at gave K = 4.3%, U42.9ppm and Th = 0ppm. No sample was taken at this location.

Figure 8 Photo 8109 muscovite granite with pegmatite vein

Anomaly 6

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A small but intense anomaly on 322595E between 757216N and 7572260N was labelled as Anomaly 6. This was a bit out of the way towards the eastern side of the exploration license and checked out before visiting an area on the western extreme.

Figure 9 Anomaly 6 sampling

MP14 was at 322621E 7572225N on the top of a granite outcrop with muscovite, minor biotite, kfeldspar and quartz. It was medium grained granite recorded in photo 8111. It contained K = 1.3%, U = 22.3ppm and Th = 6.6ppm. A Niton XRF determination gave U=22ppm, Th=28ppm, K=3.02% and high (and erroneous) Rb and Te. The ICP-MS analysis for this sample gave U = 5.11ppm, Th = 28ppm, Fe = 1.16%, P = 1080ppm and Ce = 77.5ppm.

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Figure 10 Photo 8111

MP15 at 322522E 7572214N was of a similar muscovite biotite granite and contained K = 2.3%, U = 27.1ppm and Th = 0ppm. A later Niton determination gave U=57ppm, Th=49, K=5.59% and Ba=1811ppm, Cs=132ppm and elevated tellurium. The ICP-MS analysis for this sample gave U = 22.5ppm, Th = 32.4ppm, Ce = 132.5ppm, and Fe = 1.27%. Elevated cerium values were common in the samples taken in this tenement. MP16 at 322698E 7572384N was a biotite muscovite quartz plagioclase granite and was taken near the northern margin of the outcrop. It gave K = 4.2%, U = 41.1ppm and Th = 3.5ppm. With the Niton XRF, K=2.51%, U=97ppm and Th=85ppm. The high uranium and thorium assays imputed from the GR135 PLUS spectrometer and Niton XRF were confirmed, albeit at lower concentrations, by ICP-MS. This gave 50ppm U and 62.4ppm Th, together with 149ppm Ce. Anomaly 5 At the western extreme of the Exploration License was an area that was considered a possible calcrete uranium prospect. The anomalous flight line radiometrics were plotted as Anomaly 5. A long drive of about 10 kilometres through scrub was required to get to the area. The outcrop in this area was not found to be calcrete. Rather, it was a ferruginised schist but did exhibit considerable radiometric anomalism. The flight line was walked with the spectrometer, revealing an outstanding result over a linear ironstone feature. MP17 was a sericite altered vein in a fine grained limonitic muscovite schist. It was taken at 315611E 7571653N and was found to have K = 4.6% U = 38.2 and Th = 14. With the Niton XRF, the determination was K=1.7%, U=31ppm and Th=19ppm. ICP-MS results for this sample were Fe = 5.76%, P = 950ppm, U = 21.1ppm, Th = 17.8ppm and Ce = 114ppm. The lower ICP-MS results could be due to incomplete acid digestion.

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MP18 was taken at the same location, of the limonitic muscovite schist and had K = 2.8, U = 10.3 and Th = 12.0. Niton XRF gave U<24, Th=17 and K=3.57% . Photo 8135 was taken at this location. ICP-MS analysis of the sample gave U = 14.95ppm, Th = 8.9ppm, 9.7%Fe, 910ppm P and V = 86ppm. MP19 was a silicified highly ferruginised outcrop about one metre wide, strike 355° and maybe vertical. A sample was taken at 315616E 7571892N which resulted in a spectrometer analysis of K = 0.5% U = 57ppm and Th = 14.7ppm. The outcrop extended about 20m north of this location. This feature was mapped with a Garmin Map60 GPS, along with the outline of nearby ferruginous outcrops. It may be a gossan. The Niton determination at this location gave K=0.074%, U=121ppm and Th=70ppm. Te was also noted at 238ppm, which was later shown to be erroneous ICP-MS assay returned 39.8%Fe, 5350ppm P, 4.6ppm Th and 84.9ppm U. This was the highest uranium assay obtained in the field program.

Figure 11 Photo 8135 sericite altered vein

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Figure 12 Anomaly 5 spectrometer results and outcrops

MP20 was taken at 315660E 7571909N and gave K = 1.0%, U = 52.4ppm and Th = 15. A Niton determination gave K=0, U=71ppm and Th=40ppm, as well as Te=275 and Cs=170. ICP-MS assay gave U = 61.5ppm, Th = 5.8ppm, Fe = 39.9%, P = 4910ppm and Ce = 44.8ppm. The tellurium assay was 0.03ppm, suggesting that the Niton is picking up interference in the spectra, probably due to the high Fe, in determining this element. Walking around the area revealed a large area of ferruginous scree which was strongly radioactive, some of it under the actual flight line. MP21 was taken under the flight line at 315602E 7571923N, and was a piece of limonitic scree giving K = 2.0%, U56.9ppm and Th 9.3ppm. The Niton XRF determination for this sample gave U=163ppm, Th=48ppm and minor quantities of Cu (110ppm), Mo (25ppm), Zr (136ppm) Ba(665ppm). The ICP-MS assay confirmed the presence of Cu (107ppm) and Ba (1470ppm), as well as giving 80.2ppm U and 24.1ppm Th. Vanadium was 246ppm. An interesting outcome with the ICP-MS assays throughout this project was the elevated abundance of cerium, often in excess of 100ppm and the highest assay being 305ppm.

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9 ASTER Aster imagery was obtained from Geoimage Pty Ltd of Brisbane and processed by Terra Search Pty Ltd at their Perth office. The following image mixes were obtained:- Mix Algorithm Geological environment Reference Carbonate 13/14 Exoskarn Bierwith, Nimojima, CSIRO Dolomite (6+8)/7 Rowan, USGS Carb/Chl/Epi (7+9)/8 Rowan, CSIRO Clay/Amp/Lat R:(5x7)/62 G:6/8 B:4/5 Bierwith Discrimination - for mapping R:4/1 G:3/1 B:12/14 Abdelsalam - Sultan R:4/7 G:4/1 B: (2/3)x(4/3) Sultan - Abrams R:4/7 G:4/3 B: 2/1 Abrams Goss/Alt/Host R:4/2 G:4/5 B:5/6 Volesky False colour True colour Several algorithms were tried, and in this area two mixes were found to be useful. These included a simple clay algorithm, being channels (5x7)/62 (Bierwith) which has been gridded and displayed as a Psuedocolour image (red=high, blue=low).

Figure 13 EL 25694 ASTER clay image withrock chip locations (green triangles).

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Detailed images of each of the areas confirm the lack of clay formation at the sample locations. The northern area was a plagioclase granite outcrop which had generally modest uranium concentrations (5 – 25ppm U) but high thorium.

Figure 14 EL25694 North area - clay alteration with ICP-MS U (black) and Th (red).

Geology from 1:250k Mount Peake sheet.

The eastern area was a muscovite granite outcrop which showed elevated radioactivity and was sampled in three locations. These are shown below, with ICP-MS uranium in black and thorium in red.

Figure 15 EL25694 East area - clay alteration with ICP-MS U (black) and Th (red).

Geology outlines from 1:250k Mt Peake sheet

On the western margin of the exploration license, a gossan outcrop was encountered which had the highest uranium values within the prospect. This also was on a clay-poor area.

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Figure 16 EL25694 West area - clay alteration with ICP-MS U (black) and Th (red).

Geology outlines from 1:250k Mt Peake sheet

A gossan, alteration, host rock mix was also found useful, with a false colour image generated using Red 4/2 (gossan), Green: 2 (alteration) and Blue: 5/6 (host), by Volesky. This mix showed the North and East areas to be located on host granites, while the West area appeared white, suggesting that gossan, alteration and host were all present.

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Figure 17 EL25694 Red Gossan/Green alteration/Blue host mix

Figure 18 EL25694 Red Gossan/Green alteration/Blue host mix with ICP-MS U, Th

The ASTER image indicates that the area of gossan formation may extend further south, and that there may be another zone of interest in the southwest of the image, next to the tenement boundary shown as a thick red line.

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10 Conclusions The principal source of radiometric highs for Anomalies 1 to 4 was a plagioclase granite showing elevated uranium concentrations in the range of up to 23ppm. Associated sandstone sinks in which uranium might accumulate could exist within the palaeochannels between the granite outcrops. Similarly, Anomaly 6 at the eastern side of the exploration license was hot granite. All of the anomalies were also on topographic highs, which might accentuate the apparent airborne anomalism. ASTER imagery using the gossan:alteration:host mix were in agreement with the observation that two of the anomalous areas were over fresh granites, while the westernmost anomaly was in an altered and gossanous area. The imagery indicated areas which could warrant further investigation. Anomaly 5 has a pronounced radiometric anomaly associated with a possible gossan. The ICP-MS assays for this area confirmed the high uranium determinations from the Exploranium GR135 Plus gamma ray spectrometer, being up to 84ppm uranium.

11 Further work The brief exploration effort in EL25694 Mount Central has produced some promising results. High uranium and thorium assays were encountered in all of the anomalous regions on the tenement. These were up to 84ppm for uranium and 110ppm for thorium. Though the high uranium counts on Anomalies 1 – 5 are very attractive, they are associated with hot granites rather than the expected pegmatites. As such, their prospectivity is reduced, though there is a possibility of palaeochannel accumulations of uranium. Identification and drilling of these channels could be undertaken as part of further exploration efforts. On the other hand, the anomalous uranium (up to 84ppm) associated with a possible gossan at Anomaly 5 on the west side of the exploration license is interesting. Further investigation of the area mapping the geology and looking for mineralising systems is recommended with detailed analysis of the ASTER data complementing this. It also has the advantage of greater accessibility than other areas due to its proximity to a track along a boundary fence.

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Appendix 1 Abbreviated ICP-MS results for Central Mount rock chip samples.

Sample MGA_N MGA_E ZONE Ce Fe P Th U V MP 02 7574730.9 320042.25 53K 89.3 45400 300 21.2 3.2 40

MP 03 7574699.6 320011.06 53K 286 18700 290 106 3.8 13

MP 04 7574700.2 319969.68 53K 305 19400 210 110 5.03 10

MP 05 7574161.9 319638.86 53K 14 8500 50 10 3.15 2

MP 06 7574159 319633.58 53K 272 15000 260 96 9.7 10

MP 07 7574315 319627 53K 171.5 15900 330 84.2 23.3 10

MP 08 7574032 319545.01 53K 255 18100 390 58.6 4.99 10

MP 09 7573918.6 319196.51 53K 184.5 12600 730 57.9 8.47 6

MP 14 7572225 322621 53K 77.5 11600 1080 36.9 5.11 3

MP 15 7572213.7 322551.24 53K 132.5 12700 900 32.4 22.5 5

MP 16 7572383.8 322697.3 53K 149 17100 800 62.4 50 10

MP 17 7571653 315611.96 53K 114 57600 950 17.8 21.1 36

MP 18 7511653 315611 53K 19.65 97100 910 8.9 14.95 86

MP 19 7571891.7 315652.49 53K 47.7 398000 5350 4.6 84.9 16

MP 20 7571907.5 315658.85 53K 44.8 399000 4910 5.8 61.5 33

MP 21 7571921.6 315599.24 53K 18.5 183000 1460 24.1 80.2 246

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Appendix 2 Full ICP-MS assay results for EL 25694

The rock chip and soil samples in the following files were assayed by ALS Chemex in Queensland, using ICP-MS in a three-acid digest (ME-MS41). This assay was for the following elements with the detection limit in parentheses. All values are in parts per million. Ag (0.01), Al (100), As (0.1), Au (0.2), B (10), Ba (10), Be (0.05), Bi (0.01), Ca (100), Cd(0.01), Ce (0.02), Co (0.1), Cr (1), Cs (0.05), Cu (0.2), Fe (100), Ga (0.05), Ge (0.05), Hf(0.02), Hg (0.01), In (0.005), K (100), La (0.2), Li (0.1), Mg (100), Mn (5), Mo (0.05), Na(100), Nb (0.05), Ni (0.2), P (10), Pb (0.2), Rb (0.1), Re (0.001), S (100), Sb(0.05), Sc(0.1), Se (0.2), Sn(0.2), Sr (0.2), Ta (0.01), Te (0.01), Th (0.2), Ti (50), Tl(0.02), U (0.05), V (1), W (0.05), Y (0.05), Zn (2), Zr (0.5)

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Sample State MGA_N MGA_E ZONE Ag Al As Au B Ba BeMP 02 NT 7574730.91 320042.254 53K 0.02 26600 0.8 <0.2 <10 210 0.98MP 03 NT 7574699.65 320011.059 53K 0.02 13000 0.1 <0.2 <10 80 1.09MP 04 NT 7574700.21 319969.681 53K 0.02 12200 0.2 <0.2 <10 110 1.3MP 05 NT 7574161.9 319638.86 53K <0.01 9300 0.1 <0.2 <10 50 0.89MP 06 NT 7574159.02 319633.584 53K <0.01 10800 0.2 <0.2 <10 120 0.88MP 07 NT 7574315 319627 53K <0.01 9500 <0.1 <0.2 <10 70 0.8MP 08 NT 7574032.05 319545.007 53K 0.10 14400 0.5 <0.2 <10 150 1.11MP 09 NT 7573918.6 319196.514 53K 0.07 9300 0.3 <0.2 <10 150 1.14MP 14 NT 7572225 322621 53K 0.04 7400 0.4 <0.2 <10 30 0.77MP 15 NT 7572213.7 322551.243 53K 0.03 7000 0.2 <0.2 <10 220 0.87MP 16 NT 7572383.81 322697.304 53K 0.04 13600 0.5 <0.2 <10 70 1.12MP 17 NT 7571652.97 315611.955 53K 0.02 10400 1.5 <0.2 <10 80 2.13MP 18 NT 7511653 315611 53K 0.03 23900 8.2 <0.2 <10 140 3.2MP 19 NT 7571891.67 315652.487 53K 0.14 9300 1.7 <0.2 <10 80 65.8MP 20 NT 7571907.5 315658.849 53K 0.13 9900 1.2 <0.2 <10 50 80.8MP 21 NT 7571921.62 315599.239 53K 0.05 14900 4.9 <0.2 <10 1470 18.3

Sample Bi Ca Cd Ce Co Cr Cs Cu Fe Ga GeMP 02 0.05 600 <0.01 89.3 16.2 64 13.85 5.2 45400 8.31 0.2MP 03 0.55 800 0.01 286 5.7 7 5.40 10 18700 6.22 0.25MP 04 0.16 500 0.02 305 8.8 7 9.16 4.7 19400 6.08 0.29MP 05 0.02 200 <0.01 14 2 2 3.74 2.4 8500 3.29 <0.05MP 06 0.08 600 0.02 272 5.2 7 4.67 4.1 15000 5.57 0.24MP 07 0.04 700 0.01 171.5 4.7 4 6.36 2.4 15900 4.24 0.17MP 08 0.05 700 0.01 255 4.6 7 5.47 5.5 18100 6.94 0.24MP 09 0.04 700 <0.01 184.5 3.2 5 4.42 1.8 12600 4.9 0.15MP 14 0.22 1500 <0.01 77.5 3.6 3 4.43 3.3 11600 3.6 0.09MP 15 0.11 2100 0.01 132.5 4.2 2 6.17 3.4 12700 3.69 0.14MP 16 0.17 2100 0.01 149 5.4 6 8.62 6.4 17100 6.7 0.16MP 17 0.03 400 0.02 114 3.6 81 0.27 47.3 57600 7.4 0.16MP 18 0.03 200 0.02 19.65 7.4 1155 4.47 95.2 97100 13.25 0.12MP 19 0.02 500 0.03 47.7 9.8 46 0.19 82.7 398000 2 0.68MP 20 0.02 300 0.06 44.8 11.7 81 0.24 74 399000 3.02 1.18MP 21 0.04 400 0.04 18.5 11.2 195 0.29 106.5 183000 6.84 0.22

Sample Hf Hg In K La Li Mg Mn Mo Na NbMP 02 0.21 0.01 0.016 18000 83.4 34.5 8200 299 0.38 100 0.46MP 03 0.71 <0.01 0.011 7900 135 20.2 3400 206 0.08 500 0.59MP 04 0.61 <0.01 0.011 7800 146 15.3 3700 461 0.31 400 0.37MP 05 0.27 <0.01 0.005 6100 5.3 9 1500 72 0.06 400 0.33MP 06 0.92 <0.01 0.008 7200 127 12.8 3100 210 0.36 700 0.32MP 07 0.92 <0.01 0.009 6700 73.5 17.6 3000 131 0.07 400 0.33MP 08 1.03 <0.01 0.011 8500 129 13.9 3300 181 0.44 700 0.62MP 09 0.73 <0.01 0.007 6600 77.1 12.9 2500 124 0.19 400 0.41MP 14 0.52 <0.01 0.005 4500 39.8 9.6 1700 132 0.4 500 1.33MP 15 0.78 <0.01 0.005 4800 74.5 14.8 2100 246 0.1 400 1.61MP 16 1.22 0.01 0.016 9100 68.4 33.3 3100 359 0.59 1100 1.85MP 17 0.23 <0.01 0.017 2100 42.8 2.5 300 162 2.43 300 0.68MP 18 0.2 <0.01 0.022 5300 9 5.2 2600 154 3.23 200 0.55MP 19 0.09 0.01 0.005 700 13.8 0.8 200 65 7.58 100 0.55MP 20 0.1 0.01 0.014 300 13.5 0.8 200 74 3.8 100 0.66MP 21 0.09 0.01 0.047 1100 7.3 2 300 112 15.85 100 0.67

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Sample Ni P Pb Rb Re S Sb Sc Se Sn SrMP 02 43.4 300 1.5 219 <0.001 300 0.05 4.2 0.8 0.9 9.9MP 03 4.6 290 6.4 134.5 <0.001 300 <0.05 1.3 0.4 1.1 7.4MP 04 6.5 210 6.7 133.5 <0.001 200 0.05 1.6 0.5 1.6 10.3MP 05 1.9 50 2.9 75.7 <0.001 200 <0.05 1.2 <0.2 0.5 5.7MP 06 5.2 260 6.3 108 <0.001 300 0.06 1.3 0.5 1.8 11.6MP 07 4.6 330 5.7 111 <0.001 300 <0.05 1.7 0.3 1.4 14.9MP 08 5.2 390 4.2 165.5 <0.001 400 0.08 1.7 0.6 3.1 8.9MP 09 4 730 3.3 133 <0.001 300 <0.05 0.9 0.3 1.8 11.3MP 14 2.4 1080 2.9 103.5 <0.001 200 0.07 0.6 0.3 1.5 2.8MP 15 2.1 900 4.7 125 <0.001 300 <0.05 0.8 0.6 1.9 8.7MP 16 4.1 800 6.9 184.5 <0.001 300 0.07 1.6 0.5 3.9 6MP 17 16.3 950 6.6 12.3 <0.001 400 0.05 6.7 0.8 0.5 14.9MP 18 84.6 910 8.4 62.8 <0.001 1000 0.09 14.1 0.8 1 37.6MP 19 37.7 5350 27.2 4.4 <0.001 1200 <0.05 35.3 0.8 0.3 6.9MP 20 47.9 4910 9.7 2.6 <0.001 1000 <0.05 30.7 0.7 0.8 5.7MP 21 54.4 1460 16 7.8 <0.001 800 0.08 46.1 0.7 2.1 49.2

Sample Ta Te Th Ti Tl U V W Y Zn ZrMP 02 0.01 0.01 21.2 2140 1.41 3.2 40 0.2 24.7 43 7.8MP 03 <0.01 <0.01 106 880 0.97 3.8 13 0.08 16.95 33 28.2MP 04 <0.01 <0.01 110 890 0.96 5.03 10 0.06 13.9 31 25.3MP 05 <0.01 <0.01 10 170 0.49 3.15 2 0.17 4.24 9 8.3MP 06 <0.01 <0.01 96 690 0.7 9.7 10 0.05 19.2 18 37.9MP 07 <0.01 <0.01 84.2 820 0.72 23.3 10 <0.05 12.7 18 35.8MP 08 0.01 <0.01 58.6 980 1.19 4.99 10 0.12 21 23 33.8MP 09 <0.01 <0.01 57.9 650 0.97 8.47 6 0.08 15.15 21 26.5MP 14 <0.01 0.01 36.9 500 0.75 5.11 3 0.18 9.99 19 18.6MP 15 0.01 0.01 32.4 630 0.98 22.5 5 0.09 32.4 28 25.4MP 16 0.01 0.02 62.4 1090 1.36 50 10 0.24 17.55 56 44.4MP 17 <0.01 0.01 17.8 350 0.07 21.1 36 0.06 17.05 32 10.1MP 18 <0.01 0.02 8.9 1020 0.46 14.95 86 0.11 5.04 77 8.5MP 19 <0.01 0.03 4.6 80 0.1 84.9 16 0.08 12.95 165 4.3MP 20 0.01 0.03 5.8 170 0.08 61.5 33 0.08 14.55 189 5.2MP 21 <0.01 0.03 24.1 420 0.05 80.2 246 0.17 5.95 86 6.6