Tuzo Wilson, who was a promoter of the sea floor spreading hypothesis and continental drift from the very beginning, added the concept of transform faults to the model, completing the classes of fault types necessary to make the mobility of the plates on the globe function.
Tuzo Wilson, que foi un promotor da hipótese da expansión do fondo oceánico e a deriva continental desde os seus mesmos inicios, engadiu ao modelo o concepto de falla de transformación, completando as clases de Fallas necesarias para facer que funcione a mobilidade das placas no globo.