Radium isotopes as tracers for mixing processes at the oxygen minimum zone off Peru

This project will be carried out within the Collaborative Research Center “Climate -Biogeochemistry Interactions in the Tropical Ocean” (SFB 754) (http://www.sfb754.de) in close cooperation with theHelmholtz Centre for Ocean Research, Kiel, (GEOMAR). Within SFB 754, more than 30 researchgroups ofvarious scientific backgrounds collaborate in order to better understand themechanisms driving climate-related biogeochemical processes that control the extent and intensity of oxygen minimum zones.
The main research to be addressed by this PhD project is to estimate transport and fluxes of solutes between the bottom sediments and the water column along the continental margin off Peru. This will be achieved by using radium isotope distributions in sediments and in the water column. The project foresees sampling of sediments and seawater during research cruises, the development of 228Ra and 226Ra measurement techniques by means of Multicollector ICPMS and the interpretation of the data including applications of diffusion-advection models to estimate horizontal and vertical mixing processes. The results should be interpreted in close cooperation with researchers of the SFB 754 consortium. The thesis project will be co-supervisedby Jan Scholten (IFG, CAU), Martin Frank (GEOMAR) and Anton Eisenhauer(GEOMAR).

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MSc degree or Diploma preferable in geochemistry, oceanography, marine geology or physics
Experiences in chemical laboratory work
Knowledge of radionuclide applications in oceanographic research is an advantage
Proficiency in spoken and written English is a prerequisite for employment
Willingness to participate in research cruises
Ability to work independently but team-oriented in an international research group

The position of three years shall start July 1st, 2012. The salary corresponds to E13 (75 %position) at the German salary scale TV-L. The CAU is an equal opportunity employer, aiming toincrease the proportion of women. Applications by females are particularly welcome. Applicantswith severe disabilities will be given priority consideration given equal qualifications.Please send your letter of application, curriculum vitae, and (certified) copies of key documents(such as master degree) including contact information for two potential referees as a single PDFdocument to: js@gpi.uni-kiel.de.Applications will be accepted until April 15, 2012, or until the position has been filled.

For further information please contact Jan Scholten (js@gpi.uni-kiel.de).