Ponta da Piedade - Algarve (Portugal)
by Nuno Correia, Porto, Portugal
The Algarve basin, approximately 8000km2, is located in the south of Portugal and extends onshore and offshore parallel to the coastline. The rocks in Ponta da Piedade area have undergone brittle deformation which originated in a series of small normal faults, most of them trending North-South.
Ponta da Piedade formation, the youngest sedimentary rocks of the basin, are made up 90% by fossils cemented together by calcite cement.
The geomorphological features and the rugged outlook of the cliffs in this area are an evidence of excessive erosion and sediment karstification.
Nuno Correia (distributed via imaggeo.egu.eu)