Legacy Minerals Holdings (ASX:LGM) amended a Monday disclosure to comply with the Australian Securities Exchange rules, adding a reference to S2 Resources' (ASX:S2R) filing regarding an anomaly identified at its Glenlogan porphyry copper-gold project in New South Wales, according to a Friday Australian bourse filing.

A combined tensor induced polarisation and magnetotelluric survey at the project identified the anomaly, the filing said.

The target presents a clear focus for future work and a detailed dipole-dipole induced polarization survey is planned before drill testing, according to the firm's chief executive Christopher Byrne.

The firm's shares fell past 2% on Friday close.