Magmatic response to subduction initiation: Part 1. Fore‐arc basalts of the Izu‐Bonin arc from IODP Expedition 352

JW Shervais, M Reagan, E Haugen… - Geochemistry …, 2019 - Wiley Online Library
Abstract The Izu‐Bonin‐Mariana (IBM) fore arc preserves igneous rock assemblages that
formed during subduction initiation circa 52 Ma. International Ocean Discovery Program …

Magmatic response to subduction initiation, Part II: boninites and related rocks of the Izu‐Bonin Arc from IODP Expedition 352

JW Shervais, MK Reagan, M Godard… - Geochemistry …, 2021 - Wiley Online Library
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 …

Radiogenic isotopes document the start of subduction in the Western Pacific

HY Li, RN Taylor, J Prytulak, M Kirchenbaur… - Earth and Planetary …, 2019 - Elsevier
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 …

Rapid subduction initiation and magmatism in the Western Pacific driven by internal vertical forces

B Maunder, J Prytulak, S Goes, M Reagan - Nature communications, 2020 - nature.com
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 …

Forearc peridotites from Tonga record heterogeneous oxidation of the mantle following subduction initiation

SK Birner, JM Warren, E Cottrell, FA Davis… - Journal of …, 2017 - academic.oup.com
The elevated oxygen fugacity recorded by subduction-related lavas and peridotites, relative
to their mid-ocean ridge counterparts, fundamentally influences the petrogenesis of arc …

The arc arises: The links between volcanic output, arc evolution and melt composition

PA Brandl, M Hamada, RJ Arculus, K Johnson… - Earth and Planetary …, 2017 - Elsevier
Subduction initiation is a key process for global plate tectonics. Individual lithologies
developed during subduction initiation and arc inception have been identified in the trench …

Covariation of slab tracers, volatiles, and oxidation during subduction initiation

M Brounce, MK Reagan, KA Kelley… - Geochemistry …, 2021 - Wiley Online Library
Subduction‐related lavas have higher Fe3+/∑ Fe than midocean ridge basalts (MORB).
Hypotheses for this offset include imprint from subducting slabs and differentiation in …

Role of Late Cretaceous volcanic-sedimentary melanges, specifically the Aladağ melange, E Turkey, in the rift-drift-subduction-accretion-emplacement history of the …

A HF Robertson, O Parlak… - International Geology …, 2022 - Taylor & Francis
The Aladağ melange is located between Mesozoic Tauride carbonate platform units and the
Late Cretaceous Pozantı-Karsantı ophiolite and its metamorphic sole. The melange …

Synchronous formation of the 'forearc'Bay of Islands ophiolite and its basal high-temperature metamorphic sole constrained by U–Pb zircon ages

W Yan, JF Casey - Geoscience Frontiers, 2023 - Elsevier
The welded metamorphic sole at the base of the Bay of Islands Ophiolite Complex (BOIC) in
the Northern Appalachians of Newfoundland shows a typical inverted pressure-temperature …

Relict subduction initiation along a passive margin in the northwest Indian Ocean

DK Pandey, A Pandey, SA Whattam - Nature communications, 2019 - nature.com
The tectonic evolution of Laxmi basin, presently located along western Indian passive
margin, remains debated. Prevailing geodynamic models of Laxmi basin include two …