Ricardo Valls P. Geo., M. Sc.

geology guatemala ophiolitic belts geochemistry ni 43-101 ophiolites lineament analysis research valls geoconsultant technical reports cobalt nickel evolution ore deposits oil and gas structural analysis tactics tips collaboration institutions scopus education science library bgs naming rocks in the field drilling quality control quality assurance mining disclosures education and training webinars communications research impact kudos universidad nacional de medellin facultad de minas qp reporting field trip caribbean plate baja verapaz laterites vms copper geochemical evolution regional geology geological model serpentinization petrography models pge gold mineral potential sampling