This geochemical compilation includes analyses of both granitoid and sedimentary rocks that were compiled from the thesis of Johns (2002) plus a published paper of Thériault et al. (2001) and archived unpublished GSC digital files of R.J. Thériault. Details of geochemical methods for those samples are contained in the data sources. In addition, this compilation contains unpublished geochemical analyses collected by the authors. For these samples, whole-rock major elements plus FeO were analyzed at the Geological Survey of Canada (GSC) using XRF on fused discs and dichromate titration, respectively. Whole rock trace element data were obtained at the GSC using a combination of ICP-ES and ICP-MS.