Monts carbonatés

Carbonate mounds are very steep-sided mounds of variety of shapes, which may be up to 350 m high and 2 km wide at their base (Weering et al, 2003). They occur offshore in water depths of 500 m-1100 m with examples present in the Porcupine Seabight and Rockall Trough (Kenyon et al, 2003). Carbonate mounds may have a sediment veneer, typically composed of carbonate sands, muds and silts. The cold-water reef-building corals Lophelia pertusa and Madrepora oculata, as well as echiuran worms are characteristic fauna of carbonate mounds. Where cold-water corals (such as Lophelia) are present on the mound summit, coral debris may form a significant component of the overlying substratum.

Source : Référentiel HABREF v7 (INPN/MNHN)

A6.75 — Monts carbonatés est un habitat classé sous la typologie EUNIS 2012. Il est un sous-niveau de l’habitat A6.7 — Reliefs proéminents profonds. Cet habitat compte 1 espèce inféodée, exclusivement des Animaux.

Source : Ontologia (synthèse)