Complexity of the early Archean Uivak Gneiss: Insights from Tigigakyuk Inlet, Saglek Block, Labrador, Canada and possible correlations with south West Greenland

•Unravelling multiple magmatic episodes in the Saglek Block.•A new magmatic event ca.3.56 Ga in north Labrador.•Ca. 3.6 Ga metamorphic overprint in Eoarchean gneisses from Labrador.•Correlation of geology between northern Labrador and southern West Greenland.