Galicia, in the NW of the Iberian Peninsula, is dominated by igneous rocks, mostly granitoids intruded during the Variscan orogeny. These granitoids can be grouped into four types: postand syn-tectonic tonalite granites, and post- and syn-tectonic...
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Galicia, in the NW of the Iberian Peninsula, is dominated by igneous rocks, mostly granitoids intruded during the Variscan orogeny. These granitoids can be grouped into four types: postand syn-tectonic tonalite granites, and post- and syn-tectonic leucogranites. Granite landforms in Galicia have been largely controlled by endogenous features defined during their intrusion. Subsequently, tectonics associated with the Alpine orogeny between the Eocene and the beginning of the Late Miocene resulted in a dense network of faults and
fractures. These structures delimit a heterogeneous mosaic of blocks in many cases formed by granite rocks, which were affected by differential tectonic movements during the
Palaeogene, controlling the development of mountain ranges and depressions. However, the final subaerial exposure of the granite bedrock is mainly related to a wide range of erosion processes since Palaeogene times. In spite of the limited extent of the granitic outcrops in Galicia, they dis
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