Fig. 1: Location, geology and whole-rock geochemistry of BLIC, Canada.
From: A mid-crustal tipping point between silica-undersaturated and silica-oversaturated magmas

a, Overview map of Canada, in Albers projection. b, BLIC geology. c, Whole-rock geochemistry12,14,28 for BLIC (coloured symbols) in total alkali–silica space43. Background data in grey (n = 9,499) are global alkaline igneous rock compositions from GEOROC; see Supplementary Discussion for compilation details. Sample outlined in black is the bulk composition used for modelling. Panel b adapted with permission from ref. 12, Oxford Academic/Oxford Univ. Press.