Carbonate sediment dynamics and compartmentalisation of a highly modified coast: Geraldton, Western Australia
MetadataShow full item record
© 2015 Elsevier B.V. The coastal zone off Geraldton in temperate Midwestern Australia was investigated to identify sediment dynamics and sediment budget components of two main embayments. An integrated analysis of hydrodynamics, geomorphology, sediments and habitat data was required to overcome a lack of previous examinations of sediment dynamics in the region. The seaward extent of the nearshore transport system was assessed. An improved understanding of coastal sediment dynamics and its relationship to coastal stability and assets was also achieved. The system is complex, with biogenic sediment input, as well as carbonate dune and river-derived sediments. Coastal erosion at Geraldton is mitigated by nourishment activities which require sand bypassing. Natural and artificial sediment sinks were identified, and are mainly located in the northern embayment where beach erosion is more significant. A dredged shipping channel needed to provide access to port facilities modifies the local sediment dynamics. This study provides new information for managing the Geraldton coast, which may be applicable to similar regions of Western Australia and carbonate coasts elsewhere.
Showing items related by title, author, creator and subject.
The influence of geomorphology and sedimentary processes on benthic habitat distribution and littoral sediment dynamics: Geraldton, Western AustraliaTecchiato, S.; Collins, L.; Parnum, Iain; Stevens, Alexandra (2015)Understanding of the processes regulating sediment transport, accumulation and erosion requires an appropriate mapping of coastal geomorphology, seabed sediments and benthic habitat distribution to allow management issues ...
Kraal, P.; Burton, E.; Rose, A.; Kocar, B.; Lockhart, Robert; Grice, Kliti; Bush, R.; Tan, E.; Webb, S. (2015)Phosphorus (P) is often a limiting nutrient within freshwater and estuarine systems, thus excess inputs of P from anthropogenic activities (dominantly agriculture) can induce eutrophication in receiving water bodies. The ...
Aquifers and ferric spring deposits south of Miri, Sarawak: impact on facies characterisation of coastal sedimentsKessler, L; Padmanabhan, Eswaran (2008)Observations on artesian springs indicate the presence of at least three groundwater bodies that are chemically distinct. Artesian springs are observed from both high and low iron-content ground waters. Fe2+ rich groundwater ...