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Data report: bioerosion in the reef framework, IODP Expedition 310 off Tahiti (Tiarei, Maraa, and Faaa sites)1

Katrin Heindel,2 Hildegard Westphal,2 and Max Wisshak3


The coral reef framework off Tahiti was drilled during Integrated Ocean Drilling Program (IODP) Expedition 310 in order to study environmental change (including sea level rise) following the Last Glacial Maximum (LGM). Cores from sites located in the three drilling areas (Tiarei to the north, Faaa to the west, and Maraa to the southwest of the island of Tahiti) were studied in order to characterize the microbioerosion patterns in the post-LGM deglacial reef framework. A total of 19 samples were examined for information on environmental conditions directly after the demise of the shallow-water corals and during subsequent encrustation by coralline algae and microbialites. Microbioerosion patterns imply that conditions during reef growth were deeper euphotic to dysphotic. The reasons for the largely absent shallow euphotic indications lay in the proposed rapid sea level rise leaving a drowned reef in a “cryptophotic” position of most samples, in enhanced turbidity condensing the photic zonation, or in a combination of these factors. The sea level rise scenario combined with increased nutrient levels are considered the primary factors because entirely cryptophotic conditions of the sediment cores are less probable.

1 Heindel, K., Westphal, H., and Wisshak, M., 2009. Data report: bioerosion in the reef framework, IODP Expedition 310 off Tahiti (Tiarei, Maraa, and Faaa sites). In Camoin, G.F., Iryu, Y., McInroy, D.B., and the Expedition 310 Scientists, Proc. IODP, 310: Washington, DC (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/​iodp.proc.310.201.2009

2 MARUM-Center for Marine Environmental Sciences, University of Bremen, Leobener Strasse, 28359 Bremen, Germany. Correspondence author:

3 GeoZentrum Nordbayern, Erlangen University, Loewenichstrasse 28, 91054 Erlangen, Germany.

Initial receipt: 9 April 2008
Acceptance: 25 August 2008
Publication: 23 January 2009
MS 310-201