The first batch of aircore results across Sultan Resources Kulin Hill nickel sulphide target have been received, showing strong elevated nickel levels up to 0.86%.

This result, along with 575ppm cobalt and 1.98% chromium recorded from interpreted ultramafic rocks adds to more than 2.2km of strike confirmed at Sultan’s (ASX:SLZ) first target zone.

Aircore drilling was carried out in late December 2021 and early January 2022 across three areas at SLZ’s Lake Grace Nickel project where a total of 74 holes for 2,324m was completed.

The company says geological similarities between this zone and the Gonneville intrusion have been recognised following the aircore drilling program, which was designed to confirm the presence of ultramafic rocks and help determine the prospectivity of the region for hosting nickel-sulphide deposits.

Attracting great interest

SLZ managing director Steve Groves said the company is pleased to see the assay results showing chemistry typical of that expected in a layered ultramafic sequence and supporting our initial interpretations.

“The ultramafic sections were pleasingly evident throughout entire holes and remain open at depth.

“No sulphides were identified, but high sulphur levels coincident with high nickel values in fresher material towards the end of a couple of the holes provides great encouragement for the existence of nickel-sulphides within the system,” he said.

“We have now confirmed that we have over 2.2km of strike of a thick, layered ultramafic intrusive sequence with historic evidence of nickel-sulphides to explore within a belt of rocks proven to host world class nickel-copper-PGE deposit at Julimar and attracting great interest from a number of major mining houses.”

Follow-up program

SLZ says further work is required to classify the highly magnetic, mafic rock types and verify if they could belong to a larger mafic-ultramafic sequence.

The confirmation of more than 2km of strike at Kulin Hill has elevated the prospect to be Sultan’s priority target in the 2022 field season.

Sultan is preparing to assess the body from the aircore area where access is already granted.

This work will include deeper RC drill holes followed by down-hole EM test for the presence of sulphide minerals and any conductors at depth.

A work program consisting initially of electromagnetic techniques such as Fixed Loop EM or magnetotellurics (MT) will be undertaken to detect any areas of strong conductance that might mark the location of sulphide accumulation.

Any conductors identified will be ranked and the priority targets drilled with either reverse circulation or diamond methods.



This article was developed in collaboration with Sultan Resources, a Stockhead advertiser at the time of publishing.

This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.