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Projects |
Yamarna Gold
(100% interest subject to separate royalty agreements on some tenements). For our latest exciting drilling results please see:
The Yamarna Project is located about 140km east of Laverton on the eastern edge of the Yilgarn Craton. Since Eleckra listed on the ASX in July 2006 the Company has completed two RC, as well as two RAB and Aircore, drilling programs at Yamarna during the 2006 - 2007 financial year spending a significant $2.2m on exploration. The Company has obtained excellent drilling results extending the gold mineralisation along strike both to the north and south around its updated resource of 749,000 ounces of gold (13.1 mt at 1.78 g/t Au). Highlights - Last 2 Years Drilling
A RAB drilling program at the Khan North prospect produced an intersection of 4m at 6.5 g/t Au from 22m and 4m at 2.04 g/t Au from 6m. At the same time some exciting new gold targets have been generated, with a hit of 2m at 10.3 g/t Au at the Renegade prospect. At the Augusta gold prospect drilling reported a best result of 12m at 1.24 g/t Au from 27m, subsequent infill RAB drilling at this prospect confirmed gold anomalism over a 4.8km strike length with peak gold values including 1m at 12 g/t Au and 15m at 0.5 g/t Au. Project ReviewYamarna has the defined Attila - Alaric gold resources occurring within a regional scale mineralised gold trend termed the Yamarna Shear Zone. The presence of a major deep-crustal shear zone and associated complex structural corridor is considered to have positive implications for the formation of major gold deposits. Much of the Archaean bedrock at Yamarna is obscured by a thin veneer of windblown sand and Permian sediments. Whilst making exploration challenging, the cover and isolation has resulted in Yamarna being one of the most under-explored greenstone belts in WA. The Company believes there is significant scope to discover more gold mineralisation at Yamarna given the lack of intensive historical exploration activity. The Company has assembled a substantial regional tenement package that allows exploration in the belt for the first time to be approached in a systematic manner. In its first year at Yamarna a number of advanced to grass roots gold targets have been tested with some success, but there remain many that still require a first pass test and many which warrant further drilling to determine their significance. The discovery of the potentially multi-million ounce gold deposits beneath transported cover at Tropicana 100km to the south of Yamarna highlights the potential existing in this poorly explored region on the margin of the Yilgarn. New exploration license applications were lodged and granted, targeting gold over interpreted southern extensions of the Yamarna fault zones, between Yamarna and the Tropicana gold deposits, which we have called the Golden Sands Project. Yamarna Resources
Yamarna Mineral Resource Summary
Attila / Alaric / Khan North - Gold metallurgical test work returns excellent results, with recoveries from 21 composite samples from four deposits varying between 87.3% - 98.0% with an average of 93.5%. Summary of 24-Hour Bottle Roll Metallurgical Test
The results from the bottle rolls show very good gold recoveries from all four deposits and from all weathering profiles. The recoveries vary from 87.3% to 98.0% with an average of 93.5%. These results are encouraging and support the results of earlier metallurgical test work. Yamarna Significant Gold Results
Yamarna Regional TargetsWithin its tenement holding, outside of the Attila - Alaric area, the Company has a suite of gold targets, ranging from conceptual ones to early stage prospects with some surface and RAB geochemical anomalism, as well as advanced prospects with ore grade intersections. RAB, Aircore and RC drilling programs were implemented at several of these prospects during the year. Targets tested included Khan North, Elvis, Dorothy Hills, Hann, Augusta, Central Bore, Tobin Hill and Wanderrie. Khan North
The Khan North prospect located 25km north of the Attila deposit was discovered during reconnaissance RAB drilling in 2003. Previous RC drilling included intersections of 37m (6m true width) at 8.2 g/t Au, 3m at 17.9 g/t Au and 2m at 11.8 g/t Au. The gold mineralisation occurs in a sheared quartz porphyry unit, which is a different host rock to that hosting the Attila-Alaric deposits. RAB drilling carried out by the Company over a strike length of 4km across the interpreted position of the porphyry returned several anomalous zones. The first phase of the Company's RC drilling at Khan North, totaling 14 holes for 994m was drilled below several of these RAB anomalies. The best intercept was from line 37200N located 800m north of the Khan North deposit. This new prospect, called Renegade, returned 2m at 10.3 g/t Au and 3m at 3.87 g/t Au in EYRC055 from what is believed to be the same quartz porphyry unit which hosts the mineralisation at Khan North. These intersections are open down dip and along strike and will be followed up with additional drilling in due course. Fuel DumpFuel Dump is located 3km south of Breelya within sheared mafic rocks. The one RC hole drilled at the Fuel Dump prospect (EYRC065) confirmed the potential of the prospect intersecting 1m at 1.5 g/t Au, 1m at 2.45 g/t Au and 1m at 3.55 g/t Au. With the southerly strike extensions untested, the prospect is highly prospective. An associated surface gold-in-laterite geochemical anomaly could be a useful guide for further exploration within the prospect. AugustaThe Augusta prospect is located 15km south of Breelya on a structurally complex section of the Yamarna shear zone. Aircore holes drilled by previous explorers on 200m centres on lines 800m apart returned a number of interesting results including 19m at 0.3 g/t Au, and 10m at 0.35 g/t Au. The Company completed some infill RAB drilling which confirmed the anomaly over a 4.8km strike length, returning results of up to 1m at 12g/t Au and 15m at 0.5 g/t Au. Three RC holes on two lines 800m apart were drilled to test deeper bedrock mineralisation. The holes intercepted narrow zones of +1 g/t Au mineralisation within broad zones of low-grade mineralisation and alteration. Mineralisation is predominantly hosted within a variable sheared gabbro / amphibolite with magnetite-carbonate ±pyrite alteration coincident with mineralisation. This alteration may prove to be a useful geophysical and geochemical tool for further exploration, especially to the east where the same stratigraphic unit is untested. Augusta is an extensive altered and mineralised zone which requires further testing. Golden Sands
The Golden Sands Project comprises of several recently granted exploration licences. The area is located in the southern extension of the Yamarna shear zone between the Yamarna gold project and AngloGold Ashanti / Independence Group’s Tropicana gold project. The Golden Sands Project has not been explored previously for gold. The Tropicana gold project has commenced a feasibility study drill-out, and the Joint Venture reported a revised mineral resource estimate of 75.3mt at 2.07g/t Au for 5.01 million oz Au on 23 January 2009. The Golden Sands project area now totals about 1,500km2 in area and covers a strike length of about 65kms. The southern boundary of the tenements is about 25km from the Tropicana and Havana deposits. Gold anomalism is known at the Augusta and Bluebell prospects at the northern end of the Golden Sands tenements within the Yamarna shear zone. Eleckra has interpreted Tropicana as being located at the southern extension of the Yamarna Shear where it intersects the northeast trending Albany-Fraser Province. Geochemical trends and high-grade drill intercepts reported at Tropicana appear to indicate a north-western trending component to the mineralization which is coincident with a trend of the Yamarna Shear (Figures 4, 5, 6). The Tropicana Deposit is located along an ancient collision zone between the Yilgarn Craton and the Albany Frazer Province and it is possible that gold mineralisation at Tropicana area is hosted by Archaean rafts and it has been remobilised from the Yamarna Shear. Based on the reported similarities in the rock types and alteration between the gold mineralization at Yamarna and Tropicana Eleckra believes that the Golden Sands project is highly prospective for gold mineralisation. Due to the large area of the Golden Sands project (approximately 65km x 35km) a comprehensive and systematic regional geochemical, geophysical and geological work will be required over the tenements in this frontier region. Other Significant Prospects Within the Yamarna Project Requiring Further Exploration:
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