Can stable Istotope analysis unambigously identify the Iberian Peninsula as the origin of signatures in human bones?

Can stable Istotope analysis unambigously identify the Iberian Peninsula as the origin of signatures in human bones?

Is the Isotope signature (e.g. O and Sr) of the Iberian Penisula specific enough to proof a human spent decades of adult adult there? This is not about the teeth, only about bones.