Grocott, John, and Steven C. Davies. 1999. “Deformation at the Southern Boundary of the Late Archaean Atâ Tonalite and the Extent of Proterozoic Reworking of the Disko Terrane, West Greenland”. Geology of Greenland Survey Bulletin 181 (July):155-69. https://doi.org/10.34194/ggub.v181.5123.