NickelSearch Ltd (ASX:NIS) is encouraged by the results of a downhole electromagnetic (DHEM) survey at Sexton Prospect within its Carlingup Nickel Sulphide Project near Ravensthorpe in Western Australia, corroborating the visual sulphides intersected in two recently completed diamond drill holes.
The recent diamond drilling program intersected the massive sulphides in the upper mineralised horizon (UMH) and lower mineralised horizon (LMH), with the latter found at shallower depths than anticipated in one of the drill holes.
The DHEM results from diamond holes 23NRD028 and 23NDD030 have shown that the mineralisation extends to the survey limits in a corridor about 80 metres wide.
Other findings
The DHEM survey of a total of four holes has led to the interpretation of three conductive horizons dipping shallowly to the southeast.
Notably, there are two off-hole conductors - one each below drill holes 23NRC011 and 23NDD030 - that remain untested or have not been fully explored.
The DHEM plate models, associated with the massive sulphide intersections, plunge shallowly to the east-southeast.
Sexton drilling ongoing
Meanwhile, drilling at Sexton has so far revealed multiple horizons of nickeliferous sulphide, which appear to plunge shallowly to the southeast.
The extent of mineralisation along strike has yet to be defined and remains open.
The nickeliferous sulphides have been intersected at the upper and lower contacts of a banded iron formation unit, within the ultramafic.
Additionally, there are sulphides internal to the ultramafic.
Getting confident
“The alignment of the conductive plates at Sexton with known mineralisation is encouraging, with potential for further positive results beyond the limit of testing,” NickelSearch managing director Nicole Duncan said.
“It is particularly pleasing to see the conductive plates continuing as far as we can assess with the DHEM survey.
“We intersected visual sulphides, including massive sulphide mineralisation in our June 2023 diamond drilling at Sexton and overlaying this information from the DHEM surveys gives us confidence in the prospectivity of Sexton.
“The visual nickel sulphide mineralisation intersected in the diamond drilling is sitting in a structure located at relatively shallow depths starting quite close to surface at about 40 metres and continuing to about 145 metres depth.
"We look forward to assay results in the coming weeks.”
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