The existence of mantle plumes was first proposed in the 1970s to explain intra-plate,
hotspot volcanism, yet owing to difficulties in resolving mantle upwellings with geophysical …

To address the question of the initiation and mechanisms involved in the process of
subduction zone formation, we explored most of the available evidence for the subduction …

Boninites are rare, high-Si, high-Mg, low-Ti lavas that have considerable tectonic
significance, especially for recognizing and interpreting episodes of subduction initiation in …

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

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 …

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 …

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 …

Despite the critical role of subduction in plate tectonics, the dynamics of its initiation remains
unclear. High-temperature low-pressure metamorphic soles are vestiges of subduction …

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 …