Combining an archaeomagnetic and radiocarbon study: dating of medieval fireplaces at the Mühlegasse, Zürich

► We investigate rock magnetic properties and archeomagnetic directions of 5 fireplaces. ► Archeomagnetic dating is coupled with radiocarbon ages to create an age model. ► This age model indicates that the ovens were used during a timespan of 20-40 years. ► An age model using radiocarbon ages only allows assigning an age to magnetic data. ► Temporal evolution of the field from these fireplaces reflects well the known trend.