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 …

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 …

Subduction initiation is one of the least understood aspects of plate tectonics. In an effort to
obtain the first in situ magmatic record of subduction initiation, the International Ocean …

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 …

Subduction of oceanic lithosphere is the primary driver of plate tectonics on Earth. However,
one of the least understood aspects of plate tectonics is how subduction zones initiate, due …

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 …

The magmatic character of early subduction zone and arc development is unlike mature
systems. Low-Ti-K tholeiitic basalts and boninites dominate the early Izu-Bonin-Mariana …