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Perched salt marshes on a high energy coast: Implications for sea level reconstructions

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Cooper, Andrew and Power, J (2003) Perched salt marshes on a high energy coast: Implications for sea level reconstructions. JOURNAL OF COASTAL RESEARCH, 19 (2). pp. 357-363. [Journal article]

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Abstract

Contemporary salt marsh deposits are described from elevations up to 9m above present sea level on a high wave-energy, mainly rocky coast in Northern Ireland. The salt marshes contain several distinctive salt marsh species including Juncus gerardii, Glaux maritima and Scirpus maritimus on a thin sandy substrate. Development of elevated or perched salt marshes is attributed to a combination of freshwater drainage and an impermeable substrate which creates waterlogged conditions, together with the frequent occurrence of salt spray which permits salt marsh halophytes to outcompete freshwater marsh plants. Although they are small in area, such marshes are fairly widespread in their distribution. The occurrence of these deposits at high elevations urges caution in the use of salt marsh deposits resting on bedrock as sea level indicators in such environmental settings.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Environmental Sciences
Research Institutes and Groups:Environmental Sciences Research Institute
Environmental Sciences Research Institute > Coastal Systems
ID Code:1401
Deposited By:Professor Andrew Cooper
Deposited On:26 Nov 2009 12:19
Last Modified:15 Jun 2011 11:17

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