The Meseta Central: Geology and Relief
Classified in Geography
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The Meseta Central
The Meseta Central is a high plain located at an altitude of about 600-800 meters. It was formed primarily by the erosion of the Hesperian Massif, which emerged during the Hercynian orogeny. In the Tertiary Era, it was deformed, and the plateau was largely reshaped by the Alpine orogeny. Three main units can be distinguished:
A) The Old Paleozoic Basement
Today, it only occupies the western part of the peninsula. The erosion of Tertiary materials that covered the basement has exposed primary peneplains. These are elevations due to erosion or gently undulating surfaces. The peneplains feature inselbergs (very hard rocks). In areas where the peneplain contacts the sedimentary basins of the plateau, rivers create deep gorges.