Kalo Gold Corp. has identified a 4.3-kilometre resistivity corridor at its Wainikoro target in Fiji, with gold results recorded along its length, including assays of up to 8.78 grams per tonne.
The Vancouver-based company said Sept. 24 that gradient array induced polarisation resistivity data had defined the principal corridor at its 100%-owned Vatu Aurum Project. The corridor remains open along strike.
Preliminary interpretation identified three predominantly north-south resistivity corridors. Elevated gold screening responses were concentrated along the margins of resistivity highs and lows within the main corridor and in a separate corridor about 2.5 kilometres to the west-northwest.
The eastern area returned up to 8.78 g/t gold by certified fire assay, while field screening of the same sample produced 3,397 detectORE units, which Kalo estimates at about 3.4 g/t gold. Several other results exceeded 1,000 dU, equivalent to about 1 g/t gold based on the company's estimates.
In the western area, field screening returned up to 2,744 dU, or an estimated 2.74 g/t gold.
The company said rock samples from the New Vein Cluster returned up to 7.83 g/t gold and 108 g/t silver. A previously reported chalcedonic quartz vein float sample returned 8.78 g/t gold, while a chalcedonic-banded epithermal quartz vein in silicified bedded tuff returned 4.78 g/t gold by certified fire assay.
Trenching across one of the eastern resistivity corridors exposed hydrothermally altered breccia, monomictic andesite breccia and andesitic wall rock. The hydrothermal breccia broadly corresponds with a resistivity-high area that may reflect silicification or quartz-rich cement.
Kalo said gold responses were not uniform throughout the breccia, with several occurring near lithological and geophysical margins. The company is evaluating whether contacts, secondary fractures and changes in permeability influenced mineralisation.
"The IP survey has given us a 4.3-kilometre resistivity corridor at Wainikoro with gold results along its length," President and CEO Terry L. Tucker said.
The company said the results support further evaluation of silicified hydrothermal breccias, resistivity margins and associated structural zones as priority exploration targets.
Kalo plans to begin controlled-source audio-frequency magnetotellurics, or CSAMT, surveying in late September and continue into October. The survey will test the width, orientation and depth continuity of the interpreted corridors, including potential branching, widening and crosscutting structures.
Additional work will include trenching, continuous channel sampling, structural mapping, alteration-mineralogy studies and certified laboratory analysis. The results will be integrated with existing geological, geochemical, induced polarisation, gravity, magnetic and radiometric data to refine targets for future drilling.
Kalo cautioned that not every resistivity feature is interpreted as mineralised, as resistivity contrasts can also reflect lithology, weathering, groundwater, clay content or survey effects.
The company also noted that grab, float and rock chip samples are selective by nature and may not represent mineralisation across the property.
Tighten the lead around the assayClarify the two corridor areas
