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Earth Sciences at the University of Fribourg

Bern-Fribourg Master in Earth Sciences

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Details of Master Thesis Topic (Module D):
Tracking the nature of the continental crust with modern analytical techniques

Master Thesis title: Tracking the nature of the continental crust with modern analytical techniques
Description:Fine-grained terrigenous sediments (shales) record the chemical and isotopic composition of their source rocks on the continents. Old shales are therefore a unique reservoir that stores information of past and no longer existing landmasses. We have a unique set of shale samples going back 3500 million years in age and that therefore bears information on how the continental crust changed and evolved from its earliest time to today. Radiogenic isotope systems like Rb-Sr, Lu-Hf and Sm-Nd are often used tools to reconstruct the evolution of Earth’s mantle and continental crust. However, information on how these signatures changed in the continental crust over Earth’s history is scares, which limits their application in deep time.

The MSc candidate will measure the shale samples for their radiogenic isotope signatures with an emphasis on the Rb-Sr system and will interpret the data in the context of the evolution of the continental crust over the past 3500 million years. The MSc candidate will be trained in modern analytical techniques, digestion of rocks with acids, chemical separation of elements and mass spectrometer measurements to determine element concentrations and isotope ratios.
Advisors:Prof. Nicolas Greber, Prof. Klaus Mezger
Specialities:EM, ERG, GEOL
University: BE

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University of Fribourg | Dépt. Géosciences ; Ch. du Musée 6 - Pérolles ; CH-1700 Fribourg |
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