 This quartz pebble conglomerate layer has been found as far northwest as the 4.03 Ga Acasta Gneiss Complex.The Central Slave Cover Group is autochthonous and represents a single continuous cover sequence, that links the basement complex in the northwest with the basement in the south-central Slave Province.Uniform, laterally continuous deposition implies that the CSBC was previously a part of a single ancient craton that existed as early as 2.85 Ga.