Development of cold-water coral mounds in the southern Alboran Sea (Western Mediterranean Sea) since the last interglacial

Abstract

Cold-water coral (CWC) mounds are formed due to the sustained growth of CWCs over geological timescales (thousands to tens of thousands of years). These seabed structures are discovered along continental margins of the Atlantic Ocean and its marginal seas. They are important archives for reconstructing the long-term development of CWCs and coral mounds. However, our knowledge about the coral mound formation and associated sedimentary processes is still limited. In the Mediterranean Sea, most CWC mounds were discovered in the so-called West and East Melilla CWC mound province (WMCP and EMCP, respectively). Particularly, coral mounds in the EMCP are arranged into four sub-clusters, each marked by specific morphologies and dimensions. The coral mound formation in the northern and westernmost sub-clusters of the EMCP has been reconstructed, whereas little is known about the history of coral mounds formation in the other unexplored sub-clusters of the EMCP, as well as the entire WMCP. Therefore, this thesis focuses on the CWC mound development in the southern Alboran Sea and the dominant environmental factors favoring the coral mound formation.