Exploration for porphyry deposits in the past few decades has become increasingly expensive, with new discoveries often occurring at considerable depths or obscured through extensive postmineralization cover (Schodde, 2017; Cooke et al., 2020a). Given these complexities, new exploration techniques or novel applications of known techniques are needed to ensure continued discoveries into the future. Mineral chemistry has the potential to be a valuable tool in porphyry exploration and has been applied and refined over many decades to help predict prospectivity and vector to a concealed mineralized porphyry center (e.g., Williams and Cesbron, 1977; Ballard et al.,...

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