Submarine-spring controlled calcification and growth of large Rivularia bioherms: Late Pleistocene (MIS 5e), Gulf of Corinth, Greece

Portman, Clive, Andrews, Julian E., Rowe, Peter J., Leeder, Michael R. and Hoogewerff, Jurian (2005) Submarine-spring controlled calcification and growth of large Rivularia bioherms: Late Pleistocene (MIS 5e), Gulf of Corinth, Greece. Sedimentology (52). pp. 441-465. ISSN 1365-3091

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Abstract

The cyanobacterium Rivularia haematites has calcified to form unusually large (up to 10 m high) bioherms in the Pleistocene Gulf of Corinth. Today R. haematites calcifies only in freshwater environments but these Gulf of Corinth bioherms have a brackish affinity, limited areal extent, and occur within marine deposits. Field relations and preliminary U-series dating suggest a marine isotope stage (MIS) 5e age for the bioherms. This age is compatible with published MIS 5e ages for corals in the marine sediments above the bioherms and is consistent with their current elevation based on average uplift rates. Bioherm growth during MIS 5e constrains their formation during a time of near sea-level highstand when the Gulf of Corinth was marine. Growth cavities in the bioherms are encrusted by brackish tolerant coralline algae. Field mapping of the MIS 5e highstand palaeoshoreline shows the bioherms grew in water

Item Type:	Article
Uncontrolled Keywords:	sdg 14 - life below water ,/dk/atira/pure/sustainabledevelopmentgoals/life_below_water
Faculty \ School:	Faculty of Science > School of Environmental Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Geosciences Faculty of Science > Research Groups > Geosciences and Natural Hazards (former - to 2017)
Depositing User:	Rachel Snow
Date Deposited:	02 Mar 2011 15:42
Last Modified:	24 Oct 2022 02:25
URI:	https://ueaeprints.uea.ac.uk/id/eprint/25552
DOI:	10.1111/j.1365-3091.2005.00704.x

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