Legacy’s major gold interest lies in the South Laverton region, where the company holds some 560 square kilometres of prospective ground. The South Laverton project area lies along the Keith Kilkenny Tectonic Zone (KKTZ) and the southern part of the Laverton Tectonic Zone (LTZ). These structures host numerous major gold mines, with the LTZ in particular hosting gold resources of some 20 million ounces.  

Figure 1: South Laverton Gold Project

MOUNT CELIA PROJECT

The Mt Celia Project lies within the Laverton Tectonic Zone some 40 km south of the Sunrise Dam gold mine (8 Moz gold resource), as shown in Figures 2 and 3.

Figure 2: Location of the Mt Celia Project within the Laverton Tectonic Zone

Figure 3: Satellite image of Legacy's Mt Celia and Safari tenements (green) in relation to major gold mines in the Laverton Tectonic Zone

The Mt Celia Project contains a JORC inferred resource of 46,000 oz gold at Kangaroo Bore (1.04 Mt @ 1.4 g/t gold using a 0.7 g/t cutoff).  The project area also contains several poorly explored gold prospects defined by soil and RAB geochemistry.

Past exploration at Mt Celia had focussed on the Kangaroo Bore historic workings with very little drilling conducted to the south – presumably on account of now resolved heritage issues.

Since grant of tenure in December 2009, Legacy has focussed attention on the Blue Peter shear system, and commissioned a comprehensive native heritage survey that has cleared the area of exploration from heritage sites.

Two RC drilling programs have been conducted at the Blue Peter shear system that contains several small historic gold workings (Figures 4 and 5).  The shear system extends over a distance of at least 2 kilometres, and consists of single, parallel or en echelon quartz filled shears within mafic and lesser ultramafic lithologies, that flank an eastern granitoid.  This geometry coupled with the widespread gold dry blowings is favourable for a bulk tonnage gold potential for the system. 

Figure 4: Mt Celia Project: Aerial image showing the main Kangaroo Bore and Blue Peter prospects

 Figure 5: Blue Peter Prospect - RC Drillhole locations, with RC drillhole collars showing significant intersections

A total of 4,890m of RC drilling in 85 holes was completed in two drilling programs.  All drillholes were drilled at an angle of 60 degrees to grid west.  

Figure 6: Mt Celia - Blue Peter Prospect RC Drilling

As shown in Figures 7 – 9, gold mineralisation appears to be associated mainly with the hanging wall and footwall contacts of a quartz lode – a zone of quartz veins and stringers that shows patchy visible gold and pyrite.  Panning of individual samples produced numerous occurrences of visible gold.
 
Significant gold mineralisation (greater than 1.0g/t gold) has now been shown to occur in five zones with a combined strike length of 790m.  Several zones are open along strike, and most at depth.

The most significant gold intersections are shown in the table below which shows all of the most significant intersections for all drilling to date.

Recent Program

 Previous Program

Table 1: Blue Peter Prospect - Selected Drill Intersections

A JORC compliant Inferred Resource has been calculated for the Blue Peter Prospect utilizing all RC drilling to date.  The Inferred Resource is contained in five zones – Blue Peter, Blue Peter South, Blue Peter West, Blue Peter North and Coronation.  The drill spacing within these zones is largely at 40m x 20m or better.  Typically very good continuity is seen along strike and down dip.  An Inferred Resource of 239,232 tonnes at 3.97g/t gold was calculated for a total of 30,554oz gold.

Figure 7: Drill Section 6740690N

Figure 8: Drill Section 6740990N

Figure 9: Drill Section 6740964N

An initial scoping study indicated strong potential for substantial gold mineralisation below the relatively shallow (100m) depth targeted to date.  An RC program designed to test selected zones at depths of 150m-200m is planned.

STOPHANIS WELL PROJECT - PATRICIA NORTH

The Stophanis Well Project lies in and adjacent to a major deformation zone that hosts significant gold mineralisation.  The project area flanks a small internal granitoid stock along strike of the now abandoned Patricia open cut gold mine (Figure 10).

Figure 10: Patricia gold mine (abandoned) – view to south

Two phases of RAB drilling have now been completed at the Patricia North prospect located north along strike of the abandoned Patricia mine. This drilling has produced highly encouraging gold intersections (Figure 11).  Three sub parallel mineralised zones have been outlined by the drilling.  Most drilling has, to date, been conducted on the far western zone where drill rig access was less constrained by small salt lakes and dunes.  Drilling has defined a zone of mineralisation over some 700m in this zone.

The most significant results to date include:

Drilling intersected a mixed sequence of sheared steeply dipping lithologies including mafic schists, sediments and possible porphyritic intrusives.  Mineralisation appears associated with or without quartz veining, or with variably oxidised pyrite.

The results are highly encouraging in that drilling has confirmed the presence of several extensive mineralised zones and produced ore grade intercepts in still widely spaced RAB drilling at shallow depths.  RAB drilling in the vicinity of the best intersection at drillhole SWR 150 is still at 100m x 50m spacing.

A comprehensive RC drilling program is planned to investigate the mineralised intercepts at depth and along strike.   

Figure 11: Patricia North RAB drilling results showing mineralised zones as defined to date

YERILLA PROJECT

The Yerilla project, located 150 kilometres northeast of Kalgoorlie, lies over the margins of a small syenite stock enveloped by a shear system, representing a splay from the major Keith Kilkenny Tectonic Zone (KKTZ).  To the north, the KKTZ hosts the major Leonora gold mining camp.  Numerous small gold workings are present in the tenements, with the most significant being the Bull Terrier deposit, which has an Inferred Resource of 527,000t at 1.92g/t gold (1.0g/t cutoff) for 32,500 ounces gold.

Following heritage and statutory approvals, it is proposed to conduct an Aircore drilling program that will test the southern margins of the Bull Terrier deposit, and also an extensive area of gold in soils anomalism at the Dingo prospect further to the south, where gold has been worked from laterite overlying the south margin of the syenite stock, as shown in (Figure 12) below.

Figure 12: Gold in soil geochemistry (yellow-red highs), with potential structural targets (blue)

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Web page updated on 2 June 2011.