The geodynamic significance of continental volcanoes located far from the plate boundaries
remains highly controversial as exemplified by contrasting models that favor either a deep …

High-resolution P wave tomography shows that the subducting Pacific slab is stagnant in the
mantle transition zone and forms a big mantle wedge beneath eastern China. The Mg …

Although deep carbon recycling plays an important role in the atmospheric CO2 budget and
climate changes through geological time, the precise mechanisms remain poorly …

The isotopic characteristics of the sub-oceanic mantle are well established, but in
continental regions these properties are usually obscured, and therefore controversial …

The extreme Sr, Nd, Hf, and Pb isotopic compositions found in Pitcairn Island basalts have
been labeled enriched mantle 1 (EM1), characterizing them as one of the isotopic mantle …

To investigate the behavior of Mg isotopes during low-temperature alteration of oceanic
crust and to further understand its role in the global Mg cycle, we measured the Mg isotopic …

The origin and mantle dynamics of the Quaternary intraplate sodic and potassic volcanism in
northeast China have long been intensely debated. We present a high-resolution, three …

Intraplate basaltic volcanism commonly exhibits wide compositional ranges from silica-
undersaturated alkaline basalts to silica-saturated tholeiitic basalts. Possible mechanisms …

Carbonatite metasomatism plays an important role in modifying the composition of Earth's
mantle, however, its effect on mantle Mg isotopic composition is poorly constrained. Here …

The subduction of marine carbonates and carbonated oceanic crust to the Earth's interior
and the return of recycled carbon to the surface via volcanism may play a pivotal role in …