PhD position, Trace fossils in marine sediments around Greenland

3 weeks ago


Aarhus, Denmark Past Global Changes Full time
PhD position, Trace fossils in marine sediments around Greenland - Aarhus, Denmark

The Paleoceanography and Paleoclimate Research Group at the Department of Geoscience of Aarhus University ( is seeking to hire a PhD candidate in the GreenTrace project, funded by the Independent Research Fund Denmark.

Description

The focus of the GreenTrace research project is on trace fossils in marine sediments around Greenland and their use as quantitative proxies in palaeoceanography. Trace fossils, or “footprints” that are left behind by benthic organisms such as bivalves or bristle worms moving along and digging below the ocean floor are imaged by computed tomography (CT) scanning of sediment cores. The GreenTrace project has access to more than 100 sediment core sections, from over 30 locations around Greenland.

Tasks

One of the aims of the PhD project is to develop segmentation models to isolate the bioturbation structures from CT scans with the help of machine learning techniques. Once the trace fossils are identified, they can be used to reconstruct benthic ecosystems and their responses to climatic and environmental changes over thousands of years. Research questions can focus on biodiversity, palaeoceanographic applications, carbon sequestration, and dating techniques. Depending on the profile of the selected candidate and the chosen approach of the project, the PhD candidate will also apply other proxy analyses on the sediment core samples. This may include the study of microfossils, lipid biomarkers, isotopes, and physical properties of sediments.

Requirements

Applicants must have a relevant Master’s degree or at least one year of a Master’s degree in natural science, including but not limited to geoscience, biology, ecology, engineering, or computer science.

The ideal candidate has an educational background and experience in one or more of the following topics:

  1. Arctic palaeoceanography and multi-proxy climate reconstructions
  2. Image segmentation using machine-learning techniques
  3. Arctic marine benthic ecosystems
  4. Ichnology
  5. Morphometric analysis

In the cover letter, applicants should state how their own specific research interests, background and experience fit into the GreenTrace project. There is freedom to steer the research direction of the project depending on the candidate’s individual background and these details will be discussed during the hiring process.

Applications

For information about application requirements and mandatory attachments, please see the announcement webpage: here .

Deadline: 01 February 2025 - 23:59

Further information

View the full advert here . In case of questions, please contact Christof Pearce at: .

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