BMarSt (hons) Marine Geology and Coastal Processes (University of Queensland)
Contact details for Mr Jack Coates Marnane firstname.lastname@example.org
Marine sediments as archives of environmental change and recent human impact in a shallow bay.
Estuaries, located at the interface of marine and riverine environments are highly dynamic and particularly sensitive to changes in both fluvial processes (river discharge, sediment load) and marine processes (relative sea level, tides and waves). Examining how these environments have changed over the past 1000 yrs can provide insights into i) climatic variability on timescales that predate historical data, and ii) the degree of alteration that has occurred to these systems following European settlement and land-use changes.
My research focuses on the frequency of flooding and changes in sediment delivery to Moreton Bay over the last 1000 yrs. We are using optically stimulated luminescence (OSL) radiocarbon, and radionuclide dating to estimate rates of fine sediment accretion in the Bay. This is being combined with biogeochemical information to explore environmental change in the bay and how recent catchment disturbance and flooding has altered the seascape. This work is especially focused on the extreme flood event of January 2011 and its impact on the physical and chemical environment of Moreton Bay. In addition we are exploring the use of biomarkers for detecting past floods events and human impact. Together, this will provide greater insights into catchment to coast connectivity with the aim of improving management actions taken to conserve coastal and marine habitats.
- Professor Jon Olley
- Dr Joanne Burton (DSITI)
- Estuarine geomorphology
- Land use impacts on coastal water Quality
- Coral reef Geology
- Coates-Marnane, J. Olley,J, Burton, J. Sharma, A., 2016. Catchment clearing accelerates the infilling of a shallow subtropical bay. Estuarine Coast, and Shelf Science, In review.
- Coates-Marnane, J. Olley,J, Burton, J.Grinham, A., 2016. Floods, mud and metal pollution in a shallow subtropical Bay. Marine Pollution Bulletin, In review.