Tectonic Unit: uPWR Name: Rapitan Description: Rapitan: upper tillite, hematite-jaspilite iron formation, silicic turbidite and red, maroon and green argillite, lower tillite; local tholeiite above clac-alkaline basalt and minor felsite; Toby: andesite flows and tuffs above diamictite and conglomerate; marine Formation: Omineca Belt Ancestral North America uP Irene, Leola, Huckleberry, Toby, Shedroof Foreland Belt Ancestral North America uP upper Tindir; lower Rapitan, Shezal, Sayunei Age Range: Upper Proterozoic Maximum Age: 1000.0 Ma Minimum Age: 570.0 Ma