The University of Southampton
University of Southampton Institutional Repository

The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A—an early stage growth phase for future coral carbonate mounds?

Wheeler, A.J., Kozachenko, M., Henry, L.-A., Foubert, A., de Haas, H., Huvenne, V.A.I., Masson, D.G. and Olu, K. (2011) The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A—an early stage growth phase for future coral carbonate mounds? Marine Geology, 282, (1-2), pp. 53-64. (doi:10.1016/j.margeo.2010.08.006).

Record type: Article

Abstract

This paper presents a comprehensive overview of the Moira Mounds in the Porcupine Seabight, combining a review of currently published material with new data and interpretations. The Moira Mounds are circular to ovoid-shaped individual or clustered coral banks (referred to as “scleractinian spaced cluster macroreefs”) located in the Belgica (carbonate) mound province, Porcupine Seabight, west of Ireland. They are up to 10 m high and 20 to 35 m in diameter. For the first time, a map showing the complete extent and location of the Moira Mounds is published, revealing 256 examples grouped into four areas mainly between 800 and 1100 m water depth. ROV groundtruthing revealed the importance of bedload sand transport in Moira Mound formation and development processes through sediment entrapment by coral frameworks (Lophelia pertusa and Madrepora oculata). New estimated growth rates for the Moira Mounds are comparable to those measured for much larger Irish coral carbonate mounds but an order of magnitude lower than rates from comparably sized reefs offshore Norway. As well as the framework corals, 26 macrobenthic invertebrate species were identified from a single box core that were similar to those communities found in adjacent off-mound habitats. It is proposed that the Moira Mounds are an example of the early stage growth phase of nearby giant coral carbonate mounds and represent a westward extension of the zone of active cold-water coral mound growth and therefore a deepening of the zone of cold-water coral growth over recent climate cycles.

Full text not available from this repository.

More information

Published date: 30 March 2011
Keywords: cold-water coral, coral carbonate mound, benthic processes, biogeological processes, marine geology, NE Atlantic
Organisations: Marine Geoscience

Identifiers

Local EPrints ID: 181863
URI: http://eprints.soton.ac.uk/id/eprint/181863
ISSN: 0025-3227
PURE UUID: 4c964a1d-9834-4e8c-a01a-179eee3a59f4

Catalogue record

Date deposited: 15 Apr 2011 12:38
Last modified: 18 Jul 2017 11:58

Export record

Altmetrics

Contributors

Author: A.J. Wheeler
Author: M. Kozachenko
Author: L.-A. Henry
Author: A. Foubert
Author: H. de Haas
Author: V.A.I. Huvenne
Author: D.G. Masson
Author: K. Olu

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×