AGU Fall meeting. However, models of Archaean geodynamics are still fiercely debated. Characterisation of the Archaean finite strain field at a regional scale is the first step toward a better understanding of Archaean tectonics. Alternatively, our study emphasizes that the regional strain field pattern observed in the Murchinson Province was likely produced during a single event of progressive deformation, rather than during multiple events of regional deformation. In particular, we found a single, steeply dipping, regional foliation which delineates the domes and basins.
Kinematic criteria indicate downward displacement of the greenstones relative to the granitoids.