MSc Julius Havsteen

Universität Tübingen GUZ
Schnarrenbergstrasse 94-96
72076 Tübingen

Office: Room 6R10, GUZ

Phone: +49-(0)7071-29-78907
Fax: +49-(0)7071-29-3060

Research Interests

  • Stable isotope geochemistry
  • Paleoenvironmental reconstruction
  • Geobiology

The objective of my research is to investigate the coevolution of Earth and life to better understand questions such as Earth surface evolution through time and how Earth became the only known habitable planet. Currently my work revolves around how the Earth system responded to the mode and size of the first significant accumulation of oxygen in the atmosphere. This happened during the “Great Oxidation Event” (GOE), which took place some time between 2.4 and 2.1 billion years ago. I am combining several geochemical approaches such as trace element systematics, traditional stable isotopes (e.g. carbon, oxygen, sulphur) and non-traditional isotope systems (e.g. molybdenum, selenium) to achieve a better understanding of the geochemical interactions and temporal evolution of Earth’s surface reservoirs.

Short CV

Since April 2019

PhD candidate at the Department of Geosciences, University of Tübingen, Germany

2019 MSc in Geology, University of Copenhagen, Copenhagen, Denmark
2016 BSc in Geology, University of Copenhagen, Copenhagen, Denmark

Publications (-06/2020)

  • del Rey A, Havsteen JC, Bizzarro M, Dahl TW (2020): Untangling the diagenetic history of uranium isotopes in marine carbonates: a case study tracing the δ238U composition of late Silurian oceans using calcitic brachiopod shells. Geochimica et Cosmochimica Acta. DOI: 10.1016/j.gca.2020.06.002