Project Overview

The Wedderburn HMS Project is held 100% by WIM, Exploration Licence (EL) 4912, and covers a surface area of approximately 93 km2. Following the completion of two phases of drilling in 2014 and 2015 WIM developed a fresh geological model. The updated Global Mineral Resource Estimate for Wedderburn is 223Mt @ 2.9% THM (JORC 2012, Indicated and Inferred).

Location & Infrastructure

The Wedderburn project is centered approximately 25km north east of the township of Charlton, Victoria. The project area is serviced by:

  • Existing roads
  • Existing water supply and power-related infrastructure
  • Port options readily accessible through local and regional rail

WIM Wedderburn Project Location

Local Geology

The bulk of the mineralisation at Wedderburn is hosted within a lower energy, sub-wave base depositional environment within the Loxton Parilla Sands.

Detailed cross section interpretation completed by WIM led to the development of a 'stacked sequence' model, whereby it is interpreted that there have been several phases of marine transgression and regression, resulting in several offshore and poorly developed foreshore sands deposited in a stacked sequence. The local geology of the Wedderburn project appears to be controlled by several basement structural features, including a major fault and a complex intrusive history, and WIM has interpreted these to control the RL (depth) of the mineralisation across the project area.

Generalised Cross Section for the Wedderburn Central Block of the resource (see below dh location plan for reference: AB is the most northern drill line within the central shallow block)

JORC Resource

In 2015, WIM engaged mining experts Optiro Pty Ltd to undertake a resource estimate update for the project. The Global Mineral Resource Estimate for Wedderburn is 223Mt @ 2.9% THM (JORC 2012, Indicated and Inferred). Within the central block, the resource contains 94mt @ 3.1%  and contains 23.5% zircon. Coupled with a stip ratio of 0.5:1, the Wedderburn Project is shaping up to be an attractive addition to WIM's expanding resource portfolio.

The table below outlines the 2015 Resource Estimate (by area and domain), reported above a cut-off grade of 1% THM

Work Completed

A summary of work completed:

  • WIM has completed approximately 4,000m of air core drilling within the past 24 months (see below);
  • Detailed mineralogy on drill composites HM sinks, was conducted by mineral sands specialist  Diamantina Laboratories;
  • VHM size distribution test work was conducted by ALS Mineralogy, Perth;
  • Detailed review of geophysics and the development of a well constrained geological model; and
  • In 2015 the upgrade of the resource estimated to part Indicated and the definition of shallow, higher grade areas for further work.

Location Plan of WIM drilling and the approximate outline of the resource blocks

Project Status

Resource Estimate completed in 2015. Resource Development Studies have commenced.