Technical Report for EP40748 Bendigo Otago

This report follows previous technical reports covering GIS analysis and soil sampling. Further soil sampling was undertaken in order to establish if the GIS anomaly in the vicinity of the Upper Thomsons Workings is worthy of further exploration work (e.g. trenching or drilling). 162 samples were taken along contoured lines and are the focus of this report. An interpretation involving geochemical dispersal from a smaller source is favored to explain the results. Reasons include: The majority of the anomaly is located down slope from the workings, the anomaly is confined to the vicinity of the workings, the anomaly has a trend that is not characteristic of local mineralised structures or veins in the area or workings, mineralisation exposed at Upper Thomsons is much smaller than the likely dimensions required to produce an anomaly of such a size, and the abundance of scorodite associated with mineralised veins at Upper Thomson suggests weathering/leaching processes are very active. The dispersal model, however, does not explain anomalous Au and As soils located upslope to the SW of the historic workings.