The formation of small- to medium-sized Cenozoic basins drained by the Tagus river (Portugal and Spain). Example of sedimentary basins formed by crustal-scale folding
DOI:
https://doi.org/10.55407/geogaceta102343Keywords:
Iberian Peninsula, Tagus river, compressional sedimentary basins, crustal-scale foldingAbstract
The Tagus River drains several small- to medium-sized Cenozoic sedimentary basins situated within a tectonic depression flanked by two basement highs. These basins were formed during the initial stages of the Cenozoic compressive event that affected the interior of the Iberian Peninsula, a consequence of the Africa-Eurasia convergence. These basins exhibit distinct characteristics typical of compressional sedimentary basins, being flanked by thrusts and reverse faults. The mechanism of their formation can be attributed to crustal-scale folds, showcasing a notable and possibly exceptional instance of compressional sedimentary basins created through this tectonic mechanism.
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