IODP Expedition 352 drilled four sites in the Bonin outer forearc, providing a detailed record
of lava eruption and dike emplacement during a short-lived (< 2 Ma) seafloor spreading …

Abstract The West Pacific Margin incorporates 75% of global marginal basins/back-arc
basins. These basins and their adjacent trenches and island arcs constitute a huge trench …

How serpentinites in the forearc mantle and subducted lithosphere become involved in
enriching the subarc mantle source of arc magmas is controversial. Here we report …

Abstract Northwest Pacific-Izanagi subduction histories along Eurasia are poorly
constrained due to extensive subduction, which partially consumed the western Pacific plate …

Tectonic discrimination diagrams are a key tool for understanding ancient volcanic rock
origins. In this contribution we compile over 15,000 whole rock compositions to re-evaluate …

Abstract International Ocean Discovery Program Expedition 352 to the Izu‐Bonin forearc
cored over 800 m of basement comprising boninite and boninite‐series lavas. This is the …

Back-arc basins are pivotal sites for the generation and consumption of oceanic lithosphere
in mature intra-oceanic convergent plate margins. However, the processes and mechanisms …

Plate tectonics requires the formation of plate boundaries. Particularly important is the
enigmatic initiation of subduction: the sliding of one plate below the other, and the primary …

Subduction of oceanic lithosphere is a diagnostic characteristic of plate tectonics. However,
the geodynamic processes from initiation to termination of subduction zones remain …

How subduction-related magmatism starts at convergent plate margins is still poorly
understood. Here we show that boron isotope variations in early-formed boninites from the …