Geoturism Balearic Islands

Although Quaternary sediments can be seen all along the route, the Caló Roig tectonic, eustatic or antropical processes</span></p></div>">outcrop, which gives its name due to red colour, can be considered one of the best in the area. 

Between Punta d’en Valls and Caló Roig there are two types of Quaternary deposits with different origins, the glacis deposits and torrent deposits. However, they are very similar and it is very difficult to separate them. 

Caló Roig is a good example of a glacis tectonic, eustatic or antropical processes</span></p></div>">outcrop. The glacis constitute very gentle reliefs originating in the slopes of the mountains, due to the accumulation of materials eroded by rainwater coming from these elevations.

The materials that form them are mainly red lutites with layers of gravel and pebbles with a sandy bed. These coarse layers correspond to moments of greater precipitation and, therefore, more energetic water currents that can drag larger sediments.

The second type of Quaternary is in the Canal d’en Martí area and at Pou des Lleó and that fills up the river network that cuts through the glacis. As its sedimentation area corresponds to the bottom of the torrents, these deposits have a narrow and elongated morphology, with a tendency to meander. 

These are deposits of gravel and pebbles ranging between 3 and 5 cm size (in some cases, they can reach up to 15 cm) within a very abundant clay bed.