Structural and metamorphic evidence for Mesoarchaean subduction in the Finlayson Lake greenstone belt, Superior Province, Ontario.

Highlights: [•] We report a detailed deformation history of a Mesoarchaean greenstone belt. [•] Structural tests can discriminate between competing models for Archaean tectonics. [•] Polydeformation of greenstone belt preserved along clockwise P–T path. [•] Structural and metamorphic results comparable to subduction settings. [ABSTRACT FROM AUTHOR]