Dorrit moved into the geosciences after being inspired by lectures on cosmochemical themes from international celebrities whilst she was working as a chemical laboratory assistant at the Max Planck-Institute for Chemistry (Germany).
She studied Mineralogy and Geology at Johannes-Gutenberg University (JGU) in Mainz, and obtained a Dr. rer. nat. from the Georg-August University in Göttingen. Both, Diploma and PhD Thesis were undertaken and supervised at the Max-Planck Institute for Chemistry in Mainz.
Dorrit was nationally recognised by the award of a Heisenberg Chair in Biomineralisation in 2012. She was the first female scientist in Rhineland-Palatinate to be awarded a DFG-funded Heisenberg Professorship and the first female Heisenberg Professor at JGU.
In 2013 Dorrit chose to leave Mainz and her full professorship to come to Australia, taking up an ARC Future Fellowship at Macquarie University and was promoted to full Professor in 2016.
In November 2020, Dorrit became the School Director of the Research School of Earth Sciences at The Australian national University and was elected Fellow of The Australian Academy of Science in 2021.