ELS CONTACT CONSONANTICS IN BALEAR. I DESCRIPCIÓ ANÀLISI.Summary: In this thesis pursued two objetivos.En First, it provides an overview lingüstica of processes finológicos or sionados by contacts in a row -- from a set of surveys dealectales. Sendo in place, llebaron a formal analysis of these processes from harramientas that provides the theory of optimidad. Fonológicos decritos and processes are analyzed similación regressive point of articulation, assimilation regresica so articulation, the assertion -- the ntacismo, semivocalización and vision polatales, despalatilización the simplitacación consecutive insertion vocélica.