Palaeomagnetism of the Foyers and Strontian granites,Scotland

Palaeomagnetic data from the “newer granites” of Foyers and Strontian show similar directions of magnetization with southerly declinations and horizontal to intermediate, mostly downward dipping, inclinations. These palaeomagnetic directions which accord with previous data from the Helmsdale granite are thought to be of Siluro-Devonian age. The present results are not sufficiently precise to justify discussion of possible lateral displacements along the Great Glen Fault of the order of a few hundred kilometres, but it is clear that the recent idea of a c. 15–20° latitudinal offset along the Fault in the Carboniferous has to be disregarded.