Clumped Isotope Laboratory

The Clumped Isotope Laboratory specialises in the application of clumped isotope thermometry to reconstruct the formation temperatures of carbonate minerals and unravel fluid histories in geological systems. In addition to carbonate analysis, the group employs high-resolution mass spectrometry to investigate clumping in atmospheric gases—advancing our understanding of atmospheric processes, climate dynamics, and the global carbon cycle. This work supports research across Earth system science, energy geoscience, and environmental change.

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Methodology

In our laboratory, we focus on clumped isotopes in methane, carbonate minerals and carbon dioxide: we measure the abundance of molecules bearing several heavy isotopes, which can be used to investigate questions from geochemistry to atmospheric chemistry and biology. Common applications are the determination of formation temperatures for carbonate minerals and distinguishing thermogenic from microbial methane.

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Techniques

TFS MAT 253

carbonate clumped isotope measurement

TFS MAT ULTRA HR-IRMS

high resolution methane clumped isotope measurement

triple O isotope composition in CO2

He-cooled Cryostat

separation of CH4 from other gaseous species