Surficial redistribution of gold and arsenic from the Rise and Shine Shear Zone, Otago, New Zealand

Barren ground depressions, natural H2 and orogenic gold deposits: Spatial link and geochemical model

“…Fe-carbonates are thus expected to be the most reactive phase in gold deposit. This is consistent with observations of preferential ankerite weathering in gold deposits, leading to orange to brown colors associated with the presence of ferri(hydr-)oxides (Craw et al, 2010;Stromberg et al, 2018;Cudby et al, 2021).…”