This chapter reviews recycling of boron (B) and its isotopes in subduction zones. It discusses
the profound changes in B concentrations and B isotope ratios of various materials involved …

Serpentinites are central to water (re) cycling in subduction zones and thus effect fluid-
mediated element transfer between the hydrosphere and the Earth's mantle and back into …

The key role of serpentinites in the global cycles of volatiles, halogens and fluid-mobile
elements in oceans and in subduction zones is now ascertained by many studies …

Recent geochemical evidence confirms the oxidized nature of arc magmas, but the
underlying processes that regulate the redox state of the subarc mantle remain yet to be …

Previous studies have concluded that dehydration of serpentinites in subduction zones
produces oxidizing fluids that are the cause of oxidized arc magmas. Here, observations of …

Sediments are actively subducted in virtually every arc worldwide. However, quantifying
their contributions to arc lavas and thereby establishing budgets of how sediments …

Massif-type anorthosites, enormous and enigmatic plagioclase-rich cumulate intrusions
emplaced into Earth's crust, formed in large numbers only between 1 and 2 billion years …

Serpentinites release at sub-arc depths volatiles and several fluid-mobile trace elements
found in arc magmas. Constraining element uptake in these rocks and defining the trace …

Fluid-mobile element (FME) systematics in serpentinites are key to unravel the environments
of mantle rock hydration, dehydration, and element recycling in subduction zones. Here we …

Abstract The southwestern Tianshan (China) metamorphic belt records high-pressure (HP)
to ultrahigh-pressure (UHP) conditions corresponding to a cold oceanic subduction-zone …