Geology

From the 2-billion-year-old Icartian basement rocks to the formation of island arcs and volcanic basins, discover how plate tectonics, metamorphism, and magmatic activity created the landscape we see today. The article details the unique characteristics of the Trégor, Saint-Brieuc, Saint-Malo, and Mancellian terranes, offering insights into the final stages of the Pan-African Orogeny and the…