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Post Doctoral position, isotope geochemistry and paleoclimatology - Kiel, Germany



Deadline: 1st September 2024
GEOMAR Helmholtz Centre for Ocean Research Kiel is a foundation under public law jointly financed by the Federal Republic of Germany (90%) and the State of Schleswig-Holstein (10%). It is one of the internationally leading institutions in the field of marine research.

Through our research and our commitment to the transfer of knowledge and technology, we contribute significantly to the preservation of the function and protection of the ocean for future generations.

The group of the ERC CoG project “HighBorG” of the research unit in Paleoceanography and Research division 1: Ocean Circulation and Climate Dynamics is offering a Post Doctoral position (m/f/d) in isotope geochemistry and paleoclimatology starting in early 2025 (starting date negotiable).

The Paleoceanography Research Unit offers a dynamic, international and innovative research environment with excellent infrastructure and a strongly collaborative working culture. Our research unit has state-of-the-art analytical-chemical laboratory equipment, and a network of German and international collaborations. GEOMAR offers support with childcare (holiday programmes) and a discounted subscription to local public transport. We offer among other things the possibility of individual working time arrangements and support services for professional and personal life situations. GEOMAR is an exciting work environment within which one can develop highly marketable skills, and utilize career building opportunities. Working at GEOMAR, and especially in the field of marine and climate research contributes to forward-looking solutions with social significance. GEOMAR offers 30 vacation days plus additional time off at Christmas Eve and New Year’s Eve, a company pension plan and capital-forming benefits.

The position is available for a funding period of 2 years. The salary depends on qualification and responsibilities and could be up to class 13 TVöD-Bund of the German tariff for public employees. This is a full-time position. Flexible working time models are generally possible. The fixed-term contract shall comply with Section 2 Paragraph 1 of The Act of Academic Fixed-Term Contract (German WissZeitVG).

GEOMAR Helmholtz Centre for Ocean Research Kiel seeks to increase the proportion of female scientists and explicitly encourages qualified female academics to apply. GEOMAR is an equal opportunity employer and encourages scientists with disabilities to apply. Qualified disabled applicants will receive preference in the application process.
The ERC CoG HighBorG focuses on climate-carbon dynamic reconstructions of past warm periods in our Geologic record within the Paleogene and Neogene, in search of tipping elements and climate analogues among different climate states, and further exploration of Earth system response through Earth System modelling. As such, a strongly interdisciplinary and collaborative group will aim at millennial scale reconstructions of seawater pH and atmospheric CO2, seawater temperature and ice sheet dynamics, as well as aspects of the marine carbon cycle. To achieve this, both established methods and new analytical techniques will be developed.
The successful candidate will be generating records of seawater pH/atmospheric CO2 with the boron isotope proxy on foraminifera and fossil corals, and will constrain seawater temperature, sea level and marine carbon cycle with a combination of stable isotopes and elemental ratios. The post doc will obtain training on Paleogene and Neogene foraminifera taxonomy, and will be given the opportunity to contribute to the development of new analytical methods for isotope geochemistry. Responsibilities also include clean lab analytical chemistry (inorganic), processing of sediment cores and foraminifera picking with the team’s student support. The post doc will be preparing and analyzing marine carbonates (corals and foraminifera) for isotopes and trace elements using the state of the art analytical laboratories at GEOMAR, organizing and data archiving work, statistical processing, interpreting and publishing in peer reviewed journals, and disseminating results in meetings and conferences. The post doc will have assistance by the team’s PI and technical support and will oversee the student helpers who assist in sediment core processing and foraminifera picking.


PhD in Earth Sciences, Chemical/or paleo-oceanography, Geosciences, or similar
Experience in a clean lab and inorganic chemistry, including work with mass spectrometers
Knowledge of Paleogene/Neogene climate and key carbon cycle questions
Expertise in data processing, evaluation of data quality and basic statistics
Excellent writing and spoken English
Publication and presentation record as per career level


Previous experience in foraminifera geochemistry, boron isotopes and trace elements
Detailed understanding of data reduction strategies in isotope and elemental geochemistry
Ability to operate Thermo Neptune and Thermo Element largely independently
Programming with Python, R, Matlab or similar
Being able to demonstrate creative and critical thinking skills, decision making and problem solving skills, self motivation and curiosity
Please send your application (including cover letter or letter of motivation, CV, certificates, research statement, 2-3 reference letters) for this post not later than September 1st, 2024 at the following link:

As soon as the selection procedure has finished, all your application data will be removed according to data protection regulation.
Application deadline
Further information
For further information regarding the position and research unit please contact Eleni Anagnostou (eanagnostou(at)

However, we will answer all your questions if you send us an e-mail to bewerbung(at) In doing so, please refer to the keyword “HighBorG_Postdoc”.

For further information on GEOMAR Helmholtz Centre for Ocean Research Kiel or the Helmholtz Association, please visit or
Contact email

Postdoctoral position, Arctic Paleoceanography and Carbon Sequestration - Aarhus, Denmark



Work place: Department of Geoscience Høegh-Guldbergs Gade 2, 8000 Aarhus C, Denmark

2-year fixed term full-time position starting 1 Nov 2024 or soon thereafter.

Application deadline: September 1, 2024, 23:59 CET
The Paleoceanography and Paleoclimate Group at the Department of Geoscience, Aarhus University, Denmark, invites applications for a position in paleoceanography at the postdoctoral level. The successful candidate will be part of a research group studying Holocene and late Quaternary paleoclimate and paleoceanography of the North Atlantic and Arctic regions. The postdoctoral project is part of the large international EU Horizon Europe project, Sea-Quester on the effect of climate change on carbon cycling and burial in the Arctic region. The role of Aarhus University in the project is to provide the long-term perspective on these changes and quantify carbon sequestration in different environmental and sedimentary settings. The position has a fixed term of 2 years, starting from 1 November 2024 or as soon as possible thereefter.
The postdoctoral project will focus on investigating the link between temporal changes in climate, biodiversity and ecosystems in the Greenland and North Atlantic regions, with special focus on the carbon cycle and the burial and fate of carbon in the sediments. Specific tasks will include the quantification of carbon sequestration in sea-floor sediments across space and time and to investigate links between climatic and environmental conditions and carbon burial. Other questions to address include the role of the benthic fauna in carbon sequestration and identifying and distinguishing the various sources of carbon input to the sediments. The successful candidate will be investigating marine sediment cores using tools from organic and inorganic geochemistry, micropaleontology, and sedimentology. Within the Sea-Quester project's framework, there is considerable freedom for the postdoctoral researcher to develop the project with the Aarhus University hosts.
The successful applicant will have a PhD in geoscience or related fields. Candidates should preferably have knowledge of Arctic paleoceanography and organic geochemistry, although specialists in other techniques/proxies, including inorganic geochemistry, are also invited to apply. Experience with multi-proxy studies, biomarker analyses, carbon chemistry and/or numerical/statistical data treatment will be considered favorably. Excellent oral and written English skills are a requirement.
The deadline for applications is September 1st, 2024. The department expects to conduct interviews in mid-September, and the successful candidate will be able to start between November 1st, 2024 and February 1st, 2025.

The application must include the following:
-Cover Letter, including motivation for applying and information on how the candidate’s expertise and experience will aid the project
- Curriculum Vitae, including a list of publications
- PhD certificate or a statement regarding the expected date of completing of PhD studies
- One page statement of research goals
- Contact information (name, position, institution, email) for three references

The department refers to the faculty’s guidelines for applicants:
Aarhus University’s ambition is to be an attractive and inspiring workplace for all and to foster a culture in which each individual has opportunities to thrive, achieve and develop. The Aarhus University views equality and diversity as assets, and they welcome all applicants.
Application deadline
Further information
More information see:
For questions about this vacancy, please contact: Marit-Solveig Seidenkrantz (Head of Department, Department of Geology) at:
Contact email