PhD Positions in Organic Geochemistry, Isotope Geochemistry, and Palaeontology at MARUM MARUM – Center for Marine Environmental Sciences, University of Bremen in Germany

Two four-year PhD positions are open at MARUM, University of Bremen in Germany at the interface of organic geochemistry , isotope geochemistry , and palaeobiology . The positions are part of the ERC project Deconvolving the early record of eukaryotic evolution , which investigates how life and environments coevolved during the Neoproterozoic and early Palaeozoic . Project 1 will explore major carbon isotope excursions using biomarker and compound-specific isotope analyses . Project 2 will invest...

Postdoctoral Research Position in Isotope Geochemistry and CSIA Method Development at the University of Barcelona (Spain), within the MAiMA Research Group and the ADVANCE4WATER-ISOTRACE project. The project focuses on the development and application of advanced isotope techniques to study the fate, impact, and remediation of groundwater contaminants. The successful candidate will work on topics including compound-specific isotope analysis (CSIA) , method development for contaminants of emerging ...

Postdoctoral opportunity in microbialites , geoecology , carbonate sedimentology , and marine geology at the Leibniz Centre for Tropical Marine Research (ZMT) GmbH . The position is part of the wider post-expedition science effort for IODP Expedition 389: Hawaiian Drowned Reefs , working with materials recovered from Exp 389 cores. The research is based in the Geoecology and Carbonate Sedimentology group led by Professor Hildegard Westphal . This is a postdoctoral research position ; the post do...

Open PhD opportunities in Earth Science , Environmental Science , Geochemistry , and related STEM fields are highlighted in this post. Position 1: Doctoral Researcher in Organic Isotope Geochemistry (Iso-Orbi Project) at GFZ German Research Centre for Geosciences (Helmholtz), Potsdam, Germany . The role is a 36-month PhD contract starting 1 Oct 2026, funded at TVöD Bund E13, 75% (29.25 h/week), with public service benefits, flexible hours, on-site daycare, and career support. Applicants should h...

Carleton University in Canada is advertising two fully funded graduate opportunities in Environmental Microbiology and Biogeochemistry for a research project on the biodegradation of microplastics in wetlands . The project begins in fall 2026 and includes collaboration with McGill University and Environment and Climate Change Canada . One position is a PhD project supervised by Dr. Allyson Brady , focusing on natural microbial communities that can decompose microplastics, lipid biomarkers, and r...