- MSc Researcher
Stephanie Dunne is an MSc researcher within the Raw Materials spoke of iCRAG. Stephanie graduated from Trinity College Dublin in 2018 with her Bachelor’s degree in Geology and soon after began her role at iCRAG under the supervision of Prof. Andrew Wheeler at University College Cork. The aim of her research is to evaluate the presence of marine aggregate resources off the south coast of Ireland.
Sand and gravel aggregate deposits are a vital natural resource, providing essential raw materials to the construction industry. During the last economic boom, the aggregate demand in Ireland was met with extraction from terrestrial sources with localised resource depletion evident around several major population centres. Aggregates are non-replenishable resources with the potential for demand to outstrip supply in subsequent construction booms. Marine aggregate resources have advantages over terrestrial supplies in that they are often cleaner and less prone to pyrite contamination. This research aims to evaluate the aggregate potential off the south coast of Ireland which could provide necessary resources for future urban development.
This project will delimit and quantify (resource location, thickness and quality) marine aggregate resources off the south coast of Ireland, targeting the offshore extension of the Rivers Bandon, Lee, Blackwater, Colligan, and Suir. Geophysical data (collected and new) including seismic data and INFOMAR multibeam data will allow a 3D evaluation of palaeovalley aggregate systems. Vibrocores and seabed sediment samples will enable an assessment of aggregate quality and downcore variability in these palaeovalleys. Aggregate quality will be appraised through the determination of physical properties (grain size, grain shape, grain surface texture) and petrochemistry to determine product suitability and high value niche product potential.
- Postgraduate Researcher
- Supply of Raw Materials
- Aggregates, Celtic Sea, Marine, Raw Materials, Sedimentology