Avira Resources Limited Announces Yule River Lithium Project Operational Update
the Wodgina Lithium Deposit and is along-strike from numerous MINEDEX Li-Ta prospects and occurrences. Prospective zones were checked by accessing the western side of the tenement using 4x4 vehicles; the more rugged areas were targeted using drone reconnaissance, followed by 4x4 and foot-based traverses. The prospective pegmatites were found to dip moderately to the south-southwest (south dipping pegmatites) and are 5-12m true thickness. Other narrower pegmatites dip steeply and parallel the NNE strike of the basalt host. Both pegmatite orientations show signs of fractionation from a granitic source which is inferred to occur to the west or underneath the project at depth.
Adjacent tenure to the east has been drilled into by the Wodgina tenement holders and targets the tantalite and lepidolite bearing dyke swarms that trend into the Yule River Project. The thick, parallel, and shallow dipping nature of the south dipping pegmatites makes them an attractive exploration target. Areas without modern rock chip sampling were prioritised to assess if the apparently thick pegmatites were mineralised with LCT suite minerals. Whilst the width and orientation of pegmatite sampled provides a voluminous exploration target, the initial reconnaissance clear drill targets are yet to be defined. It was noted however that the drilling at the Vun Prospect had not drilled the full thickness of the pegmatite unit, leaving scope to define a large exploration target at depth. Reconnaissance traverses of the North-Eastern corner of the tenure also identified thick pegmatite units (Figure 2). Rock chips contained varying amounts of lithium mica; primarily lepidolite and possible zinnwaldite (Figure 3). At this stage the presence of spodumene in the dykes has not yet been confirmed. Hand samples of felted textured micas and coarse purple-grey lepidolite have been collected for assay; primarily these assays will provide a vector to mineralisation using trace element and whole rock geochemistry. Once geochemical vectoring and internal phase analysis of the pegmatites is complete, a reassessment of the untested portions of the outcropping and subsurface pegmatites will be made to determine if ground-based Geochem soil sampling and/or drilling is supported.