Legend Mining Limited (ASX:LEG) has identified a promising new EM conductor during its regional exploration programme from the Rockford Project, within the high profile Fraser Range region of Western Australia.
Managing Director, Mark Wilson, said the new drill target was established with infill moving loop electromagnetic (MLTEM) surveying at the Hurley prospect.
Mr Wilson also reported that the company has commenced a 250 hole, 16,000m regional aircore (AC) drilling programme.
In addition to Mawson, it is pleasing to see positive results from our regional work with a third conductor defined at Hurley,” Mr Wilson said.
“A recently completed project scale geochemical review has also highlighted Hurley as a highly ranked geochemical prospect.
“This further enhances the prospectivity of the entire Rockford project and shareholders should also note that the Hurley prospect is on 100% owned Legend ground.”
MLTEM surveys were originally completed over the Worsley, Crean and Hurley prospects in May 2020 at the Rockford South region.
These surveys were targeting a combination of aeromagnetic and gravity features and identified conductors W1 (Worsley), C1 (Crean) and H1- H2 (Hurley).
Further infill surveying was recently completed at Hurley over the H1-H2 conductors aimed at providing additional data to enable accurate modelling of the features. This surveying also identified a new strong conductor H3 in the southern part of the prospect.
Both the H1 and H3 conductors are considered priority targets based on their modelled conductance, dimensions and association with aeromagnetic features.
In addition, a recently completed geochemical review of the historic aircore drilling across the Rockford Project, including Mawson, highlighted Hurley as a highly-ranked geochemical target, falling within the 90th percentile of ranked data. Further aircore drilling is planned over these three conductors to test for anomalous geochemistry and provide information on bedrock lithologies prior to possible RC/diamond drill testing.
The previously identified Worsley conductor corresponds closely with anomalous Zn-Cu-Ag results in aircore drillholes and a 400m diamond drillhole has been designed to test this conductor. The Crean conductor requires aircore follow up to define the extent of previously identified anomalous Ni-Cu geochemistry.
The new aircore drilling programme will test a combination of 12 aeromagnetic and gravity features, interpreted to be related to mafic/ultramafic intrusives.
The ultimate aim of the programme is to identify anomalous nickel-copper associated with intrusive host rocks for follow up MLTEM surveying and RC/diamond drill testing.