Developing ways to understand the glacial history of East Antarctica from minerals found in sediments
A knowledge of the glacial history of Antarctica is needed to help to predict future effects of a changing climate. This project seeks to develop a more robust technique to better analyse records of past periods as predictors of East Antarctic glacial history.
This PhD project will develop and apply approaches to the analysis of detrital data using a Bayesian probabilistic framework to interrogate models of detrital generation and transport.These techniques will seek to find, for records of past deposition, the most likely state of the erosion and sediment transport system in the past, and in so doing will define the most likely state of the ice sheet and the ocean in Antarctica.
The approach will also support the selection of new sites for detrital records to be collected, optimising value of data.
The new approach will be applied to vulnerable glacial catchments in East Antarctica and will help to constrain past ice sheet evolution and projections for the future of sea level and climate.
- Kennicutt et al., 2019. Sustained Antarctic Research: A 21st Century Imperative. One Earth, v.1, no.1, pp 95-113.
- Noble et al., 2020. The Sensitivity of the Antarctic Ice Sheet to a Changing Climate: Past, Present, and Future. Review of Geophysics, v.58, no.4.
- Aitken, A.R.A and Urosevic, A., 2021. A probabilistic and model-based approach to the assessment of glacial detritus from ice sheet change. Palaeogeography, Palaeoclimatology, Palaeoecology, v.561, no.1.
I am a geophysicist and tectonicist. I have worked extensively in Antarctica, understanding its geology and the influence of that geology for understanding glacial change. I specialise in studying the interaction of ice sheets with the rocks beneath. I pursue a broad portfolio of research in other regions of the world and for several applications.
The project is to be co-supervised by an inter-disciplinary team of excellent researchers in geology, geochemistry, mathematics and statistics. The project is linked into ARC-funded research centres.
Funding and Collaborations
This project is supported by the $20M, 4 year Australian Centre of Excellence in Antarctic Science, which conducts world-leading research into the changes that are happening in the Antarctic and Southern Ocean, seeking to revolutionise predictions of their future.
- Dr Jacqui Halpin ACEAS at IMAS (University of Tasmania)
- Dr Taryn Noble ACEAS at IMAS (University of Tasmania)
How to Apply
- To be accepted into the Doctor of Philosophy, an applicant must demonstrate they have sufficient background experience in independent supervised research to successfully complete, and provide evidence of English language proficiency
- To be accepted into this program you will have a strong background in Earth Sciences with some exposure to the fundamental methods of detrital provenance, and be willing to engage in quantitative numerical and spatial analysis methods.
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