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 …

Abstract The Izu‐Bonin‐Mariana (IBM) fore arc preserves igneous rock assemblages that
formed during subduction initiation circa 52 Ma. International Ocean Discovery Program …

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 …

Whether modern-style plate tectonics operated on early Earth is debated due to a paucity of
definitive records of large-scale plate convergence, subduction, and collision in the Archean …

Arc magmas globally are H2O-Cl-S–rich and moderately oxidized (ΔFMQ=+ 1 to+ 2) relative
to most other mantle-derived magmas (ΔFMQ≤ 0). Their relatively high oxidation state limits …

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 …

Volcanism following the initiation of subduction is vital to our understanding of this specific
magma-generation environment. This setting is represented by the first development of the …

Supra-subduction zone (SSZ) ophiolites such as the Troodos Ophiolite of Cyprus are
thought to have formed at spreading centres close to subduction zones. Similarities in the …

Subduction zones are fundamental to plate tectonics, yet how they initiate remains
enigmatic. Geodynamic models suggest that if horizontal forces dominate, the upper plate …