Basalt geochemistry can be used as a diagnostic indicator for determining the tectonic
setting of origin, because specific plate tectonic settings often impart distinctive geochemical …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

We present a comprehensive geochemical data set for the most recent volcanics from the
Mariana Islands, which provides new constraints on the timing and nature of fluxes from the …

Uranium-thorium isotope results from island arc volcanic rocks were used to investigate the
rates of transfer of fluids and sediments from the downgoing slab. Uranium, but not thorium …

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 …

Dy/Dy* is the measured value of Dy, a representative middle rare earth element (REE),
compared with the value interpolated between La and Yb on a REE plot. It is essentially a …

Geochemical tracers demonstrate that elements are cycled from subducted sediments into
the arc melting regime at subduction zones, although the transfer mechanism is poorly …

Metasomatism above subduction zones is an important process that produces
heterogeneous mantle and thus a diversity of igneous rocks. In the Panzhihua district, on the …

In its simplest interpretation, this observation implies only a few thousand years elapse
between'fluid'release from the slab, and eruption of this component in arc lavas. In most …

Recycled ancient oceanic crust with variable amounts of aging, or inclusion of sediments of
differing types and origins has often been invoked as a source for present‐day ocean island …