Subduction zones not only return oceanic lithosphere into the mantle, but are also sites
where chemical components are transferred from the downgoing plate back to the surface in …

Zircon U-Pb dating is the most commonly used method for isotopic geochronology.
However, it has been a difficult issue when relating zircon U-Pb ages to metamorphic …

We derive a novel method for determining the oxidation state of a magma as zircon
crystallized, with a standard error of±0· 6 log unit ƒO2, using ratios of Ce, U, and Ti in zircon …

Crustal recycling at convergent plate boundaries is essential to mantle heterogeneity.
However, crustal signatures in the mantle source of basaltic rocks above subduction zones …

The Th/U ratios of zircon crystals are routinely used to help understand their growth
mechanism. Despite the wide application of Th/U ratios in understanding the geological …

Trace element concentrations and ratios in zircon provide important indicators of the
petrological processes that operate in igneous and metamorphic systems. In granitoids, the …

The pressure–temperature (P–T) conditions for producing adakite/tonalite–trondhjemite–
granodiorite (TTG) magmas from lower crust compositions are still open to debate. We have …

Arc magmas and the continental crust share many chemical features, but a major question
remains as to whether these features are created by subduction or are recycled from …

Subducted crust refertilizes the subarc mantle wedge as well as the deep convecting mantle.
In the subarc region, mass transfer occurs mainly through fluids, melts, or supercritical …

In this paper we present new zircon U–Pb ages, Hf isotope data, and whole-rock major and
trace element data for Early Mesozoic intrusive rocks in the Erguna Massif of NE China, and …