Michael Wiedenbeck

TL;DR: In this article, the results from a second characterisation of the 91500 zircon, including data from electron probe microanalysis, laser ablation inductively coupled plasma-mass spectrometer (LA-ICP-MS), secondary ion mass spectrometry (SIMS), and laser fluorination analyses, were reported.

TL;DR: In this article, abranched fragments (200-400 µm) of a large, chemically homogeneous, and non-metamict Brazilian monazite crystal, characterised by a concordant U-Pb ages of 474 +/- 1 Ma (208Pb/206Pb = 19.5), were hydrothermally treated at varying temperatures with solutions of different compositions.

TL;DR: In this article, electron microprobe, secondary ion mass spectrometry, and laser ablation inductively coupled data for common trace elements (Li, Al, Ti, Na, K, Fe) in quartz were presented.

TL;DR: Measurements of carbon solubility in olivine, the major constituent of the upper mantle, at pressures up to 3.5 GPa are found to imply that most carbon must be present as a separate phase in the deeper parts of the higher mantle, probably as a carbonate phase, consistent with models that link global mass extinctions to flood basalt eruptions via a sudden increase in atmospheric carbon dioxide levels.

TL;DR: The Istituto di Geoscienze e Georisorse (IGG), with the support of the International Atomic Energy Agency (IAEA), undertook the collection, preparation and distribution of eight geological materials intended for a blind interlaboratory comparison of measurements of boron isotopic composition and concentration as mentioned in this paper.