Lefroy exploration has kicked off drill testing of multiple magnetic targets at the Burns copper-gold prospect within the Lefroy Gold Project (LGP) in WA.

A 20-hole RC drill program is underway to evaluate multiple magnetic anomalies along a 3000m corridor, including:

  • 13 RC holes testing the new magnetic anomalies known as Lovejoy, Skinner, Flanders, Smithers and Ralph;
  • 4 RC holes at Burns evaluating extensions to the western basalt that hosts broad zones of copper mineralisation;
  • 2 RC holes to evaluate the annular magnetic anomaly surrounding the Burns intrusion; and
  • 1 RC hole to evaluate the centre of the Burns intrusion.

The 13 holes evaluating the new anomalies are a proof-of-concept evaluation of five magnetic anomalies to characterise the geology and determine similarities with the established Burns gold-copper system.

The program is expected to take three weeks to complete with assay results anticipated in December.

Similar characteristics to the Burns copper-gold system

The initial two holes of the program have been completed and are adjacent to the largest magnetic anomaly known as Lovejoy.

“We are excited to be back out RC drilling at Burns evaluating multiple magnetic targets that share characteristics to the established Burns copper-gold system,” Lefroy Exploration (ASX:LEX) managing director Wade Johnson said.

“This is the first stage of a larger program that will involve lake drilling to demonstrate the scale of the intrusion related system and its related mineralisation over a 3000m corridor and extending out into Lake Randall.”

Staged exploration program planned

Lefroy says the general association of the gold-copper-silver mineralisation at Burns, with magnetite in both basalt and diorite porphyry rocks, provides the rationale for a strong, first order exploration program focused on the newly found magnetic anomalies.

  • Stage 1 of the exploration program is underway, drilling land-based targets using an RC rig.
  • Stage 2 will involve a specialised lake aircore rig to evaluate the Lovejoy and Kenny’s Dream magnetic anomalies and the eastern extent of Burns all located in Lake Randall.
  • The company considers Lovejoy to be a priority target given it has coincident magnetic-gravity anomaly.
  • This drilling will require a specialised Lake aircore drill rig with drilling scheduled to commence in November 2021.

The idea of the staged approach is to scope out the broader extent of the Burns mineral system to support defining metal zonation and alteration patterns that could lead to stronger zones of mineralisation.




This article was developed in collaboration with Lefroy Exploration, a Stockhead advertiser at the time of publishing.


This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.