Highlights in the field of air analysis included: a new focus on measuring tyre-wear particle
emissions; an interest in using unmanned aerial vehicles for sampling purposes and an …

Previous studies have shown that significant K isotope fractionation is found in continental
weathering, oceanic crust subduction, and plant growth, suggesting that K isotopes could be …

Multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) is widely used
in stable and radiogenic isotope analysis of various elements because of the extremely high …

Ca isotope geochemistry has great potential for improving our understanding of magmatic
systems and for tracing the deep Earth carbon cycle. There are still many open questions …

Extreme greenhouse warming in the latest Permian played a key role in the largest animal
extinction event ever recorded in Earth history. The extinction was likely triggered by …

The Earth's mantle has a complex history of partial melting and melt-peridotite reaction that
have redistributed Ca and other elements between residues and melting products. Given the …

Microanalysis of Fe and S isotopes in sulfides by laser ablation multi-collector inductively
coupled plasma mass spectrometry (LA-MC-ICP-MS) has been used as an important tool to …

Carbonatites are igneous rocks composed of over 50% modal carbonate minerals and their
exact origin and possible mode (s) of formation are still debated. We report stable Ca …

Calcium is a major element in terrestrial planets and has six stable isotopes, including 40 Ca
which is a product of radioactive decay of 40 K (T 1/2= 1.25 Gyrs). Calcium isotope …

The oceanic crust consists mainly of a lower layer of cumulate gabbroic rocks and an upper
layer of differentiated basalts. The thicknesses and proportions of the gabbroic and basaltic …