In order to evaluate the mechanism of production of unusual high-Mg andesite (HMA)
magmas, Pb–Nd–Sr isotopic compositions were determined for HMAs and basalts from the …

The mantle transition zone, located at depths of 410–660 km between the lower and upper
mantle, is an important water reservoir in the Earth's interior,,,. However, there are regional …

A possible mechanism for high-Mg andesite formation, including melting of subducting
sediments and subsequent melt-mantle interaction, was examined by geochemical …

Mantle Extrusion: A Model for Dispersed Volcanism and Dupal-Like Asthenosphere in East
Asia and the Western Pacific Page 1 Mantle Extrusion' A Model for Dispersed Volcanism and …

Quaternary lavas from the NE Japan arc show geochemical evidence of mixing between
mantle-derived basalts and crustal melts at the magmatic front, whereas significant crustal …

Many studies have examined the Japan Sea basalts recovered during Ocean Drilling
Program (ODP) Leg127/128. Of these, the 40Ar–39Ar dating undertaken is important in …

Abstract Southwestern Japan during Paleogene time was affected by subduction of the Kula
and Pacific plates beneath the eastern margin of Eurasia, followed by a brief episode of …

The origin of historic potassic basalts (from the 1719 to 1721AD eruption) from the
Wudalianchi volcanic field, northeast China, is investigated. The samples examined in this …

Intraplate magmatism affected much of Indochina following the mid-Miocene cessation of
South China Sea opening. Thick basalt plateaus formed on accreted terrains of varying age …

The major element, trace element, and radiogenic isotope compositions of volcanic rocks in
the back-arc area of the eastern Eurasian continental margin provide insight into the nature …