Devonian palaeogeography of the Orcadian Basin and the Great Glen Fault


STORETVEDT1 has argued that Devonian palaeomagnetic results from Norway and northern Scotland indicate a post-Devonian sinistral displacement along the Great Glen Fault of some 200–300 km. This has been objected to on geological grounds by Mykura2 and on palaeomagnetic grounds by Turner et al.3. Here we present a simplistic Devonian palaeographical model of the Orcadian Basin based on observation of onshore sediments. We believe the model is compatible with only minor dextral displacement along the Great Glen Fault in post-Devonian times.

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DONOVAN, R., ARCHER, R., TURNER, P. et al. Devonian palaeogeography of the Orcadian Basin and the Great Glen Fault. Nature 259, 550–551 (1976).

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