Université de Fribourg

Environmental boundary conditions of cold-water coral mound growth over the last 3 million years in the Porcupine Seabight, Northeast Atlantic

Raddatz, Jacek ; Rüggeberg, Andres ; Liebetrau, Volker ; Foubert, Anneleen ; Hathorne, Ed C. ; Fietzke, Jan ; Eisenhauer, Anton ; Dullo, Wolf-Christian

In: Deep Sea Research Part II: Topical Studies in Oceanography, 2014, vol. 99, p. 227–236

IODP Expedition 307 made it for the first time possible to investigate the entire body of a cold-water coral carbonate mound. Here we provide new insights into the long-term history of Challenger Mound on the European continental margin off Ireland. This study is based on age determinations (230Th/U, 87Sr/86Sr) and geochemical signals (Mg/Li and Ba/Ca) measured in the scleractinian cold-water...

Université de Fribourg

Late Weichselian deglaciation and early Holocene development of a cold-water coral reef along the Lopphavet shelf (Northern Norway) recorded by benthic foraminifera and ostracoda

Stalder, Claudio ; Spezzaferri, Silvia ; Rüggeberg, Andres ; Pirkenseer, Claudius ; Gennari, Giordana

In: Deep Sea Research Part II: Topical Studies in Oceanography, 2014, vol. 99, p. 249–269

Cold-water coral (CWC) settlement in northern Norway is strongly related to the outlet-glaciers of the Fennoscandian Ice-sheet, and dating of known CWC structures show clearly post-glacial ages. Two gravity cores (POS391 559/2,277 cm long and POS391 559/3,282 cm long) were recovered on a CWC reef in the area of Lopphavet, northern Norway. Detailed investigations on lithology (sediment structures...