Bárcenas 2012). Besides, around Al-Hoceima Bay (African shelf), at least two fields
of subaqueous dunes have been related to reworking processes during the postglacial
sea-level rise (Lafosse et al. 2018).
6.5.1.2 Erosive Features
These features include different types of submarine valleys and wave-cut terraces.
The Iberian shelf is indented by several submarine canyons (Figs. 6.3b and 6.5b). A
shelf-incising canyon (the Carchuna Canyon) occurs off Cape Sacratif, with its head
located only a short distance from the coastline (Fig. 6.5a, b). The recent activity of
the canyon is evidenced by the fact it is eroding the Carchuna-Calahonda IPW
(Ortega-Sánchez et al. 2014). The incision of the outer shelf by canyon heads is
particularly frequent along the westernmost northern shelf in the vicinity of the Strait
Fig. 6.5 Examples of the erosive, gravitational, and anthropogenic features observed in the
continental shelf of the Alboran Sea. (a) Map showing the location of the examples. (b) Carchuna
canyon head incising the continental shelf (Ortega-Sánchez et al. 2014). (c) Gullies developed in the
prodeltaic topset. (d) Gullies eroding the prodeltaic foreset. (e) Shallow-water slides. (f) Spherical
mounds of anthropogenic origin located near the harbour of Adra
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G. Ercilla et al.
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