Stefan Loehr

Stefan Loehr is an Honorary Senior Research Fellow at Macquarie University's School of Natural Sciences and Marine Research Centre. With expertise spanning geochemistry, sedimentary geology, and paleoceanography, Dr. Loehr focuses on extracting records of paleoenvironmental and climatic change from marine and lacustrine sedimentary rocks using advanced microbeam analytical techniques.

His research interests encompass high-resolution paleorecords across significant environmental transitions throughout Earth's history, including Quaternary glacial-interglacial cycles, the Eocene-Oligocene Climate Transition, Mesozoic Greenhouse World events, and the Ediacaran-Cambrian Transition. His work investigates secondary mineral formation and alteration processes in terrestrial and marine settings, with implications for biospheric evolution, climate studies, and element cycling. A particular focus involves studying wildfires as agents of mineral alteration and geochemical differentiation at the Earth's surface.

Dr. Loehr's publication record shows consistent research productivity with significant contributions to clay mineralogy, geochemical proxies for environmental change, and innovative dating techniques. His work demonstrates strong interdisciplinary connections between geology, geochemistry, and climate science, with publications in high-impact journals including Nature Communications, Science Advances, and Geochimica et Cosmochimica Acta.

As an active academic, Dr. Loehr serves as a reviewer for prominent journals including Geochimica et Cosmochimica Acta and GSA Bulletin, and regularly participates in international conferences such as the European Geosciences Union General Assembly. His research is supported by multiple active projects including 'Pyrolysis equipment for chemical analysis of large organic molecules' and 'Mapping of mineral and organic phases in organic rich marine sediments.'

Dr. Loehr supervises multiple PhD and honors students, with current projects examining topics such as authigenic clay minerals and early animal life, the Palaeocene-Eocene Thermal Maximum, wildfires as agents of geochemical differentiation, and coal biodegradation to methane. He is a key member of the Macquarie University Marine Research Centre and the Macquarie University Energy and Environmental Contaminants Research Centre, collaborating with researchers across various disciplines to address complex environmental questions.