 Covering about , it is a relatively small but well-exposed craton dominated by ~2.73–2.63 Ga (billion years-old) greenstones and turbidite sequences and ~2.72–2.58 Ga plutonic rocks, with large parts of the craton underlain by older gneiss and granitoid units.The Slave Craton is one of the blocks that compose the Precambrian core of North America, also known as the palaeocontinent Laurentia.The exposed portion of the craton, called the Slave Province, comprises and has an elliptical shape that stretches NNE from Gros Cap on the Great Slave Lake to Cape Barrow on the Coronation Gulf and EW along latitude 64°N.