Final surrender report EL 6861, 11 September 2007 to 9 September 2017

Abstract

Exploration for the period of 11 September 2007 - 9 September 2017 included regional 1 km x 1 km lag sampling and prospecting followed by detailed lag (500 m x 500 m and 250 m x 250 m), soil sampling and rock chip sampling programs over elevated pathfinder element anomalies in several areas of the tenement. Totals of 3202 lag, 228 rock and 647 soil samples were collected during the period of tenure. Follow-up work on base metal targets identified the sources of the elevated results and in the main these were derived from the weathering of mafic intrusions enriched in the anomalous elements. No evidence of economic levels of mineralisation was revealed by the work. Gold anomalism in lag sampling in the area of Gold Hill could not be repeated in follow-up soil sampling. Systematic regional sampling throughout the tenement and detailed follow-up programs including prospecting along primary and secondary structures associated with the collisional boundary did not identify targets worthy of drilling. Castile has now focused its exploration efforts on other regions in the Warumpi Province and has opted to surrender this tenement.