Example of albitized and/or silicified Fazenda do Posto granodiorite cover rock from drill hole 23FP002 at 109 metres. The original rock textures have been nearly completely obliterated due to hydrothermal alkalic alteration. Remnant quartz and feldspar phenocrysts are evident. It is postulated that this rock was acting as a barrier or cap masking any surface expression of gold mineralization.
Example of albitized and/or silicified Fazenda do Posto granodiorite cover rock from drill hole 23FP002 at 109 metres. The original rock textures have been nearly completely obliterated due to hydrothermal alkalic alteration. Remnant quartz and feldspar phenocrysts are evident. It is postulated that this rock was acting as a barrier or cap masking any surface expression of gold mineralization.