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Table 4 Concentration of radiogenic elements for outcropping rocks of the Morin Terrane (including samples from outside our study area)

From: Numerical analysis of the role of radiogenic basement on temperature distribution in the St. Lawrence Lowlands, Québec

Rock type \(C_U\) (ppm) \(C_{Th}\) (ppm) \(C_K\) (%)
Anorthosite (7) 0.07–1.0
Amphibolite (23) 0.2–17.7 1.7–35.1 0.9–4.5
Diorite (4) 1.7–4.5 3.6–38 1.8–5.0
Granite (7) 0.9–13.9 2.2–31 0.5–6.29
Granitic gneiss (36) 0.2–3.95 0.25–35.5 0.9–5.9
Granodiorite gneiss (4) 0.54–1.35 0.6–4.7 2.71–3.35
Mangerite (1) 0.5 0.2 0.36
Marble (20) 2.1–3.4 0.11–7.91
Mixed gneiss (91) 0–9.2 0.1–35.9 0–5.8
Pyroxenite (4) 0.5–3.4 0.01
Quartz-monzonite (1) 0.5 5.96
Quartzite (10) 1.7–2.4 0.05–0.22
Pegmatite (5) 0.3–59.3 11.2–421.5 2.8–7.1