Portable XRF analysis for porphyry fertility indicators

摘要

Modern exploration strategies for porphyry copper mineralisation include the application of 'fertility indicators'. These are geochemical or mineralogical indicators that processes or conditions were consistent with, and favourable for, a model for ore genesis (Sun et al. 2013; Loucks 2014; Loader et al. 2017). Typically, these would target rocks genetically linked to mineralisation, but are not dependent on them containing mineralisation or even alteration. Thus, fertility indicators can be used in regional- or district-scale targeting and screening to prioritise specific igneous complexes or even intrusions.