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 | |   Luhala Property Projects | Included Licenses | Summary & Overview | Tanzanian Royalty Exploration Interest | Geology | Future Testing | Photo Gallery Luhala Property Summary & Overview
Luhala Property In January 2007, the Company concluded an option royalty agreement with Sloane Developments for its Luhala gold project. Under the option agreement, the Company granted Sloane the right to earn a 100% beneficial interest in six of its licenses comprising the Luhala Project. (See news release dated Jan. 30, 2007). Property Description and Location The Luhala property is located in the Misungwi District of Tanzania (see property location map). It lies approximately 70 kilometres south of the City of Mwanza. The prospecting licenses are in good standing with respect to required filings and payments with the goverment of Tanzania. Regional Geology of the Luhala Project Area:: The Luhala Project Area is located in the Buhungukira greenstone belt, which forms the eastern extensions of the Geita greenstone belt. The Project is located along the Kukuluma - Nyanzaga - Kitongo - Luhala corridor which forms a linear zone of felsic volcanics and sediments host to numerous gold showings: Kukuluma ±2Moz @ 4.0g/t; Kitongo ±0.48Moz @ 2.0g/t. Barrick East Africa is currently in joint venture with Sub Sahara Africa exploring the Nyanzaga license where ongoing diamond drilling has been taking place for the past 12 months. Current reported reserves here are ±1Moz @ 1.0g/t. The present model for mineralization at all these showings is shear hosted gold within fold and thrust zones. ) Soil Geochemistry: MMI soil sampling was performed at 200 x 50m spacing over the Luhala License. The Kisunge-Shilalo target area is strongly anomalous and the smaller hills to the north and south are also anomalous. Conventional aqua regia soils were done along the RAB fences at 200 x 50m spacing and then the Kisunge-Shilalo target area was sampled using conventional aqua regia soils at 50 x 25m spacing. Conventional aqua regia results confirm the strong MMI soil anomaly over the Kisunge-Shilalo target area. ) Airborne Geophysics: Regional government surveys were flown in 1976-80. Detailed airborne geophysics (100m line spacing) was flown over the Luhala license in 1996. The principal general interpretations from maps at 1:50 000 scale include:
Gold Mineralization at Luhala: Extensive significant surface gold mineralization has been discovered within the Kisunge-Shilalo target area. This area forms the main focus of exploration at present and it comprises three hills, namely Kisunge, Shilalo West and Shilalo South hills. From a total of 634 outcrop grab samples taken on the project area, 51 gave results >1g/t Au to a maximum of 10.4g/t Au. Of a total of 3,444 channel samples taken from 48 trenches totaling 4.27km, 220 gave results >1g/t Au to a maximum of 137g/t Au / 1m. There is a close relation between the "felsic package of rocks" and gold mineralization. The "felsic package of rocks" includes rhyolite, rhyolite breccia, felsic tuffs, chert, argillite and the Ci ironstone unit. The structural and / or stratigraphic setting(s) distinguishing where mineralization is best developed within the favourable host rocks is now starting to be recognized. One geological / lithostructural model presented (Oliver, 2003) associates gold mineralization to dilatant zones developed at specific stratigraphic sites (namely chert / rhyolite horizons) near fold closures along the two major fold structures. A second model (Learn, 2004) suggests that the principal control for gold mineralization is related to N-S trending, moderately E dipping (in the order of 50š), thrust faults. Although anomalous gold at Luhala is related to certain stratigraphic horizons, in particular, chert, argillite and felsic tuff beds in the "felsic package of rocks", and although anomalous gold at Luhala can be found all along the N-S trending faults,economic concentrations of gold may be expected at the intersection of these faults and favourable stratigraphic horizons. Intersections of the faults and fold closures of favourable stratigraphic horizons may ultimately define the highest grade mineralized zones, similar to the model proposed for the Geita deposits. Shilalo West hill: ) View Hi-Res PDF (4.7 Mb) Geological Model: Structure: Discussion of Recent RC Drilling Results and Exploration Potential: From September 2004 to May 2006 an RC drilling program totaling 7,037.5m in 120 holes has been conducted at Luhala. The majority of this drilling (118 holes) has been focused on the Kisunge hill mineralization where previous RAB and diamond drilling, as discussed above, has delineated numerous zones of shallow mineralization. The objective of this drilling was to:
The drill holes and sections were planned to the NW, with the intention of intersecting the faults at a perpendicular angle. ) ) 5 phases of RC drilling have been completed and are summarized as follows: Kisunge Hill, which is approximately 100m high, hosts an oxidation zone down to at least 80m. The drilling on the hill was conducted on approximately a 25m x 40m grid pattern. The mineralization can now be blocked out into two zones: Kisunge Main Zone: This zone occurs on the eastern and southern foothills of Kisunge hill. In the east it is north-south striking and flat dipping at approximately 25° east. In the south it is east-west striking and dipping moderately at about 50° south. It was thought that the main ore shoot on the Main Zone is on the eastern limb. The strike length of this shoot is unknown as access in the south is limited and diamond drilling will be required to confirm any extension in this direction. The known strike length to date is approximately 200 metres, with grades and thicknesses of up to 29 metres averaging 2.66 g/t including 13 metres averaging 3.77 g/t. The plunge of the ore shoot has yet to be determined. It has also been determined that the southern limb to the Main Zone represents a thinner, lower grade portion of the gold mineralization established there to date, with the higher grades typically being around the 2g/t level. This mineralization extends for a strike of approximately 200 metres. Discussion of Recent Diamond Drilling Results and Exploration Potential: The Phase 7 program consisted of nine diamond drill holes representing some 991 metres of drilling, all of which tested the eastern limb of the Kisunge Main Zone. The objectives of the drilling were to access areas where the RC rig could not get to so as to test the strike and dip potential of the Kisunge Main Zone eastern limb mineralization. Final assay results for these holes are presented below:
Holes LKD-08, 9, 10, 11 and 14 were drilled to test a thick, high grade zone intersected previously in shallow RC holes and obtain an azimuth and plunge to the mineralized shoot. Drilling has indicated that this gold shoot has a shallow plunge with a northerly azimuth. Hole LKD-09 defines the southern cut-off to the mineralization, and LKD-11 marks the northern cut-off, suggesting a strike length of at least 150 metres. Drill holes LKD-12, 13, 15 and 16 were drilled south of the above-noted mineralization in an area where RC drill rig access was not possible due to the steepness of the hill. Higher grade gold intersections (between 3.90g/t and 10.95g/t) were obtained along a strike of some 150 metres, with the zone being open in both northerly and southerly directions. The trend of this mineralization appears to be north-south but the plunge is unknown. Drill hole LKD-16 was collared at the same location as LKD-13 but with a vertical dip. The purpose of this hole was to obtain the dip to the mineralization, which was determined to be quite shallow at approximately -10 degrees to the east. Other Targets for future testing: Tanzanian Royalty has recently acquired its own in-house IP department. All future targets at Luhala will first have IP carried out over them before a decision is made on drilling. Kisunge Hill: Invaluable structural information was obtained from these diamond drilling program at Kisunge, and due to the shallow dip to the gold-bearing body the Company is planning an additional RC drill program that will commence in the 2007 field program. This program will test the depth extensions to this higher-grade zone obtained in this drilling on the Kisunge Main Zone eastern limb, as well as the depth extensions to the southern limb of the Main Zone. Shilalo West Hill: A series of RC drill holes is planned behind the present shallow RC intersections. Further RC or diamond drilling is planned to test the mineralization in the southeast of Shilalo West hill. There is a problem in this area with access as the hill is steep. A bulldozer might be required to build drill pads. Shilalo South Hill: Shilalo South hill has not been adequately drill-tested. The few holes drilled here are not representative of the potential of the hill taking into account the surface trenching results. But there is less evidence here, based on recent visits, to know whether and / or where, controlling structures oriented N-S are located. There is evidence of the presence of fold closures at Shilalo south, and systematic drilling of structures crossing the hill will be very prospective. Good continuity of gold grades has been established by the trenching in an ENE direction over 550 m. This surface mineralization has only been drill-tested along strike by 4 drill holes. Two diamond drill holes were drilled on the western end of the hill by two holes spaced 40m apart (LSD-1 and LSD-2). Two RC holes (LRC-2 and LRC-3) were drilled to test the central portion of the hills. The two diamond drill holes were collared to target a fold nose mapped in the trench on L6900E that gave 5.7g/t Au / 13m at surface. The fold was interpreted to have a westerly plunge but was missed by the drilling. If this target is located at the intersection with one of the E-dipping structures, drilling to the other side of the trench may result in better drill intersection(s). Three more RC holes are proposed at Shilalo South to continue drilling out the strike of the hill. New Kiginga Zone: One brand new mineralized zone was discovered approximately 1,500 metres north of the present known gold mineralization at Luhala, during a RAB program in 2005. This newly discovered mineralization appears to strike almost north-south with a vertical dip. There appears to be more than one mineralized zone. The mineralization occurs within an intermediate volcanic tuff horizon. Thin quartz veins and hematite alteration are commonly noted within the zones. This new zone is referred to as the Kiginga anomaly, and includes the following RAB intersections:
Two RC holes have been drilled at Kiginga to obtain the strike and dip of the mineralization, and returned the following results:
This mineralization will be further delineated with RC drilling in late 2006.
Regional soil geochemistry and geological mapping: Soil sampling (conventional aqua regia) at 500 x 50m spacing along N-S lines on Ngobo and Shilalo (452 samples / conventional aqua regia) gave results up to 78ppb Au along the northern extension of the Kisunge-Shilalo target area. As a result of this survey, the ground in the small gap that existed between Luhala and Ngobo licenses was acquired (Shilalo license). This has been beneficial as recent RAB drilling has identified a new mineralized zone on Luhala called the Kiginga anomaly that appears to extend onto Shilalo. RAB drilling of the main Ngobo PL's in 2005 was not too successful and it was decided to return two PL's to WIDESCOPE PROMOTION. Further work on the Kiginga anomaly will be in the form of IP surveys followed by possible RC drilling in 2007.
Regional soil geochemistry and geological mapping: In 2001, Tanzanian Royalty Exploration Corp. decided to evaluate the performance of BLEG soil sampling compared to conventional aqua regia (or MMI) soil sampling. A small orientation survey (11 samples) comparing conventional aqua regia and BLEG results was performed at Luhala. As the comparison of results was satisfactory, soil sampling at Sima was done using the BLEG method. BLEG soil sampling at 400 x 400m spacing (111 samples) gave results to a maximum of 49ppb Au near Chibuji hill in the southwest corner of the license. A second, lower priority anomalous area with a maximum result of 17ppb Au can be defined in the NW corner of Sima license. This weaker anomaly is consistent with dispersion from the stronger MMI anomaly at Ikungumulu hill in the SE corner of Luhala license. The only outcrops visited on Sima license occur on Chibuji hill. The regional geologic map is therefore very preliminary. 5 rock samples have been taken on the license and one of these, sample E3686, returned a result of 2.8g /t Au. This sample of Ci ironstone float was taken at the foot of Chibuji hill on its eastern side. Follow-up soil sampling: Soil sampling at a 200 x 50m grid spacing (121 samples / conventional aqua regia) was performed over the southeastern BLEG anomaly. The survey returned a maximum Au value to 93ppb. In 2005 a regional RAB drilling program was conducted over the group of Sima PL's to test magnetic structures as well as Bleg soil anomalies. 5 RAB fences were drilled across favourable stratigraphy. Results were generally poor. As part of condemnation a few RC fences were drilled on anomalous RAB intersections returning poor results. As a result PL2681/04 has been returned to WIDESCOPE PROMOTION.
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