Katharina Methner

TL;DR: Results verify theoretical predictions and evidence that the isotopic disequilibrium commonly observed in speleothems and scleractinian coral skeletons is inherited from the dissolved inorganic carbon pool of their parent solutions.

TL;DR: The data suggest a strong climate coupling between the North Atlantic and Central Europe already in the middle Miocene, and a change in the seasonal timing of soil carbonate formation that was likely driven by a modification of rainfall seasonality and thus by a major reorganization of mid-latitude atmospheric circulation across Central Europe.

TL;DR: In this paper, stable isotope (δ18O) and clumped isotope temperature ( Δ 47 ) records from a middle Eocene (41 to 40 Ma) high-elevation mammal fossil locality in the North American continental interior (Montana, USA).

TL;DR: In this paper, the 253 Plus™ gas source mass spectrometer equipped with Faraday cups and 1013 Ω resistors can perform combined ∆47 and ∆48 analyses on carbonates with external reproducibilities (1SD) of 0.010 and 0.030, respectively.

TL;DR: Accuracy and precision of this correction are demonstrated by clumped isotope analysis of three internal carbonate standards by correcting the measured m/z 47 ion beam intensities of sample and reference gas for the contributions deriving from secondary electrons after scaling these contributions to the intensity of the corresponding m/Z 49 ion beams.