Early drilling at the East Laverton Project intersected thick sulphidic exhalative sediments with elevated zinc and copper mineralisation, confirming this was the right environment for VMS (volcanogenic massive sulphide) deposit.
VMS Deposits at the East Laverton Project
In June 2014, a thick mineralised interval of 19.25m @ 0.35% Zn and 0.1% Cu in drill hole DDD011 provided further support of the potential for a VMS discovery at East Laverton.
The continuity of the grades and the thickness of this interval make this a significant base metal intersection at the East Laverton Project.
VMS deposits and komatiite nickel deposits are seen as “proxies” for each other because they both form in similar tectonic settings. The potential for VMS mineralisation at the project is therefore validated by the established presence of nickel sulphides at East Laverton.
VMS deposits have a zoned alteration profile, and this assists in understanding where a single drill intersection is situated within the wider mineral system.
The figure below illustrates a conceptual section through a VMS deposit showing typical mineralised zones. Drill hole DDD011 is consistent with a marginal zone of the VMS system.
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