"At a point just east of Carrington Bay an obscure appearance of stratification occurs with a strike of about 333 degrees and small quantities of molybdenite were found in quartz veins" (Geological Survey of Canada Annual Report 1886, page 23B). Stratification may refer to the Upper Triassic Karmutsen Formation mapped in the area and enclosed by granitic rocks of the Juro-Cretaceous Coast Plutonic Complex (Geological Survey of Canada Open File 480).