Michael Owenvbiugie Eguagie, Idoko Peter Idoko, Onuh Matthew Ijiga, Lawrence Anebi Enyejo, Francisca Chinonye Okafor, Chinelo Nwaamaka Onwusi. Geochemical and Mineralogical Characteristics of Deep Porphyry Systems: Implications for Exploration Using ASTER. Int J Sci Res Civil Engg. 2025;9(1):01-21. doi:10.32628/IJSRCE25911