Drilling is expected to start soon, with the drill testing newly identified kimberlite targets.
Geophysical crews have been active in the field since early December, conducting magnetic, electromagnetic (MaxMin) and gravity surveys over much of the 243-hectare exploration reservation area.
In mid-January, the company deployed an excavator to collect till samples to further support geophysics results. The basil till covering potential kimberlites on the project is only one or two metres thick, Arctic Star said.
A total of 41 line kilometres of electromagnetic (MaxMin) are planned, of which roughly half has been completed. Around 35 kilometres of gravity survey are also planned, of which 55% has been done and dusted; there are also 61 line kilometres of ground magnetics planned of which 35% is now complete.
Arctic Star said the Wolf kimberlites are moderate magnetic highs in a fairly magnetically noisy background with iron formations and mafic volcanics producing similar or more intense responses. At this stage, there are over 20 magnetic anomalies that may represent kimberlite targets in the general Wolf area, the gravity and MaxMin survey will help further prioritize these targets prior to drilling.
The excavator is sampling the basal till, down ice of the more promising geophysical anomalies. Four targets have been tested to date, and the samples have been sent to the laboratory to extract indicator minerals. The drill will be directed to any of these that report diamond indicator minerals.
The drill will also be used to further delineate the Wolf kimberlites and return a larger caustic fusion micro-diamond sample to further determine the size and grade for a decision to bulk sample these diamondiferous kimberlites.
"By rapidly deploying these different exploration tools to our exploration permit, we expect to obtain multiple layers of evidence of new kimberlites that can be drill tested,” said Buddy Doyle, vice-president of exploration at Arctic Star.
“We know there are more kimberlites in this area by the expression of diamond favourable indicator minerals in the region, which the Wolf kimberlites cannot explain. The company also will produce a steady stream of caustic diamond fusion results from drilling the Wolf kimberlites, which, so far, have produced encouraging micro-diamond counts. The next six weeks will be an exciting time for the company," he added.