Tracking the final fate of subducting carbon is crucial to understanding global carbon cycles
and climate changes in the history of the Earth. Available geochemical tracers such as …

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 …

Stable Ca isotopes are an increasingly useful tool for understanding the sources and
processes leading to the formation of magmatic rocks, yet Ca isotope fractionation during …

We present high-precision Ca isotopic data for 21 Cenozoic basaltic lavas from eastern
China to evaluate the potential of Ca isotopes as a tool to trace the recycling of surface …

Marine carbonates, the major carrier of carbon upon the upper crust, can be subducted into
the Earth's interior along with oceanic crust, and then returned to the surface through …

Large Ca isotope variations recorded in mantle xenoliths and mantle-derived igneous rocks
have been widely used to decode the origin of mantle heterogeneity, especially to trace …

Subduction-driven recycling of crustal materials plays a substantial role in the generation of
geochemical and lithological heterogeneities in the Earth's mantle. Because the distinct …

The tectonic mechanisms that may trigger a transition from calc-alkaline to alkaline volcanic
activity above a subduction zone are enigmatic. We report major/trace elemental and Sr-Nd …

Calcium (Ca) is an essential element closely connecting to the recycling of marine
carbonate at subduction zones. Here, we report Ca isotopic compositions (denote as δ …

Chemical metasomatism of the mantle wedge by slab-derived fluids is an important
mechanism for the compositional features of mafic magmas above oceanic subduction …