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    Resampling at Lefroy’s Burns prospect better defines Cu-Au intersections

    Lefroy Exploration Limited (ASX: LEX) announced that the results of the 1m resamples for the 22 RC holes drilled in January 2021 at the Burns Copper Gold prospect within the Lefroy Gold Project (LGP) in WA has confirmed the tenor of mineralisation reported previously in each hole and also better defined the higher and lower grade zones in each hole.

    The company said that this better definition will assist the determination of the geological settings for the copper gold mineralisation.

    Significant results from the resampling program included 38m @ 7.63g/t Au & 0.56% Cu from 134m to EOH in LEFR260 incl. 27m @ 10.1g/t Au & 0.74% Cu from 141m.

    LEX said that diamond drilling is now underway at Burns and a further 14 holes are planned under this current program. Lefroy said that a detailed analysis of all RC and diamond holes completed in the March 2021 Quarter drilling program will be released later this week.

    Resampling at Burns prospect

    The Perth-based gold explorer focused on greenfields exploration in Western Australia had recently commenced the 1 m resampling of the reverse circulation (RC) program that evaluated the Burns copper (Cu) gold (Au) prospect in January 2021.

    The resampling involves collecting the individual 1m rotary split sample from an interval where the 4m composite samples return anomalous gold or copper values.

    The company has now reported that the resampling results have been received, validated, compiled, and incorporated into the geological model.

    Encouraging results from resampling

    Lefroy announced that the resampling results reported support and reinforce the Cu-Au mineralisation previously reported and compiled from combined 1m and 4m composite samples.

    Significant results from the resampling program included 38m @ 7.63g/t Au & 0.56% Cu from 134m to EOH in LEFR260 incl. 27m @ 10.1g/t Au & 0.74% Cu from 141m; 14m @ 1.04g/t Au & 0.36% Cu from 102m in LEFR267; 22m @ 0.77g/t Au & 0.71% Cu from 34m in LEFR270 incl. 1m @10.4g/t Au & 2.23% Cu from 48m; and 106m @ 0.32g/t Au & 0.55% Cu from 24m in LEFR271.

    Important RC resamples for the Burns prospect are as shown below.

    The company noted that the key interval in hole LEFR260 strengthened from 20m @ 12.2g/t Au & 0.87% Cu from 144m to 27m @ 10.1g/t Au & 0.74% Cu from 141m. This mineralisation is within a broader 60m interval of 5.00g/t Au.

    LEX said that the intersection in hole LEFR 270 has improved compared to the original 4m composite samples and has outlined a new zone of Cu-Au mineralisation in oxidised basalt on the northern most drill traverse and is open. The company noted that this intersection may be reflecting supergene mineralisation from the magnetite pyrite altered basalt intersected approximately 120m to the south in holes LEFR 271, LEFR 272, and historical hole OBUDD001. LEX said that this now provides a new and additional target area at Burns for future follow up.

    Latest updates and next steps

    LEX said that diamond drilling is now underway at Burns, with the first hole being designed to twin and then extend the zone around LEFR 260. The company said that a further 14 holes are planned under this current program, with a total length of drilling to exceed 2000m.

    Lefroy said that a detailed analysis of all RC and diamond holes completed in the March 2021 Quarter drilling program will be released later this week.

    Image Source: Lefroy Exploration Limited

    Jonathan Norris
    Jonathan is a founder of Mining.com.au and has been covering the resources industry since 2018. With over 17 years experience in print, broadcast and online media, Jonathan has seen first hand the transformative effect of online niche media.

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    • Delayed Prices (USD) - Last Updated 29-06-2022
    • Gold $1,819.40
    • Silver $20.79
    • Platinum $909.00
    • Palladium $1,802.00
    • Dalian Iron Ore i2209 $121.88
    • Aluminium $2,495.50
    • Cobalt $72,400.00
    • Copper $8,417.50
    • Lead $2,003.50
    • Nickel $22,882.00
    • Tin $26,991.00
    • Zinc $3,318.00