MCB Resources Limited announced that alteration mapping has defined strong lateral zonation (typical of Cu/Au porphyry deposits) transitioning from an outer propylitic zone to an inner phyllic zone associated with previously mapped diorite intrusives and broad copper mineralization at Melilup. Dr. Bill Andrews (Valhalla Geology) was engaged by MCB Resources to conduct a SWIR survey on rock specimens obtained at Melilup. The study permits the identification and characterization of mineral species and allows for the reconstruction of thermal, geochemical and weathering environment to vector in towards mineralization. Alteration mapping using infrared spectra permits the analysis of a wide variety of deposit types including epithermal and porphyry alteration systems. It maps alteration minerals in order to identify alteration zones (mineral occurrence/proportions and mineral composition and crystallinity), and to define ore bodies. The TerraSpec Halo spectrometer measures the optical energy that is reflected by, absorbed into, or transmitted through a sample (ASD, 2008). Resulting scans are then compared to a "Spectral Library" of known responses derived from various alteration systems from around the world, allowing comparisons to be made on distance from source, fluid chemistry, and nature of mineralized system. Results: 71 rock chip specimens obtained from Melilup were analyzed using a TerraSpec Halo. Analysis identified strong phyllic assemblages spatially associated with intrusive phases. Illite assemblages detected mainly occurred within and proximal to inferred copper mineralization. This work validates past field observations carried out at Melilup. Potassic white mica (phyllic alteration) associated with dioritic phases and magnetite destructive alteration zones along a NW-structural corridor (arc-parallel) as well as in a NE-SW striking direction (arc- normal) toward Fathom Target 1 suggests a similar structural setting to that of the Panguna Copper Mine (Agnew, 2018).