FN Archimer Export Format
PT J
TI The Holocene occurrence of cold water corals in the NE Atlantic: Implications for coral carbonate mound evolution
BT 
AF FRANK, Norbert
   RICARD, Estelle
   LUTRINGER-PAQUET, Audrey
   VAN DER LAND, Cees
   COLIN, Christophe
   BLAMART, Dominique
   FOUBERT, Anneleen
   VAN ROOIJ, David
   HENRIET, Jean-Pierre
   DE HAAS, Henk
   VAN WEERING, Tjeerd
AS 1:1;2:1;3:1;4:4;5:2;6:1;7:3,5;8:3;9:3;10:4;11:4;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;
C1 Lab Sci Climat & Environm IPSL CEA CNRS UVSQ, LSCE, F-91198 Gif Sur Yvette, France.
   Univ Paris 11, UMR CNRS, Lab Interact & Dynam Environm Surface, IDES, F-91405 Orsay, France.
   Univ Ghent, Dept Soil Sci & Geol, Renard Ctr Marine Geol, B-9000 Ghent, Belgium.
   Royal Netherlands Inst Sea Res, NIOZ, NL-1790 AB Den Burg, Texel, Netherlands.
   Katholieke Univ Leuven, Dept Earth & Environm Sci, B-3001 Heverlee, Belgium.
C2 LSCE, FRANCE
   UNIV PARIS 11, FRANCE
   UNIV GHENT, BELGIUM
   INST SEA RESEARCH (NIOZ), NETHERLANDS
   UNIV KATHOLIEKE LEUVEN, BELGIUM
IF 2.521
TC 79
UR https://archimer.ifremer.fr/doc/00219/33060/31574.pdf
LA English
DT Article
CR MD 123 / GEOSCIENCES 1
BO Marion Dufresne
DE ;carbonate mound;deep sea corals;U-series dating;climate;Rockall Bank;Porcupine Seabight
AB U-series dating of constructional cold-water corals is a powerful tool to reconstruct the evolution of corals on carbonate mounds. Here we have investigated the time framework of corals such as Lophelia pertusa and Madrepora oculata on five different mound settings of the eastern North Atlantic (on Rockall Bank and in Porcupine Seabight), sampled at variable depth and location (610-880 m water depth). We have found that the past 11 ka reflect a period generally favourable for coral development. We further determined local mound growth rates and identified mound surface erosion (framework collapse) during times of active coral framework construction. "Local" vertical mound growth rates vary between less than 5 cm ka(-1) and up to 220 cm ka(-1). We interpret rates exceeding 15 cm ka(-1) as representative of densely populated coral reefs. During times of reduced or absent coral development, mound evolution rates are by far smaller (0 to <5 cm ka(-1)). The time resolution achieved here furthermore provides first evidence for reduced coral (ecosystem) activity at 1.8-2.0 ka, 4.2-4.8 ka and between 6 and 8.2 ka within the Holocene that may be related to climate driven changes of the coral growth environments. During Glacial periods coral growth in those areas seems apparently extremely reduced or is even absent on mounds.
PY 2009
PD OCT
SO Marine Geology
SN 0025-3227
PU Elsevier Science Bv
VL 266
IS 1-4
UT 000271557600009
BP 129
EP 142
DI 10.1016/j.margeo.2009.08.007
ID 33060
ER

EF