Mid-Cretaceous Wake seamounts in NW Pacific originate from secondary mantle plumes with Arago hotspot composition

X Wei, XF Shi, YG Xu, PR Castillo, Y Zhang, L Zhang… - Chemical …, 2022 - Elsevier
The geochemistry of oceanic intraplate (primarily oceanic island and seamount) lavas can
provide essential information on the composition and evolution of their mantle source and …

[HTML][HTML] Overlap** hotspot tracks and melts from diffuse plume materials in the upper mantle generated intraplate seamount groups in the West Pacific

X Wei, GL Zhang, J Zhang, XF Shi, PR Castillo… - Earth and Planetary …, 2024 - Elsevier
An oceanic volcanic chain with linear age–distance relationships is generally attributed to
originate from a primary mantle plume. The origin of many seamount groups in the West …

Co-occurrence of HIMU and EM1 components in a single Magellan Seamount: Implications for the formation of West Pacific seamount province

X Wei, Y Zhang, XF Shi, PR Castillo, YG Xu… - Journal of …, 2022 - academic.oup.com
Our general understanding of mantle composition and dynamics mainly comes from the
composition of lavas from oceanic intraplate volcanoes. They are generally accepted to …

Breaking up is hard to do: Magmatism during oceanic arc breakup, subduction reversal, and cessation

J Gill, E Todd, K Hoernle, F Hauff… - Geochemistry …, 2022 - Wiley Online Library
Abstract The formerly continuous Vitiaz Arc broke into its Vanuatu and Fijian portions during
a reversal of subduction polarity in the Miocene. Basaltic volcanism in Fiji that accompanied …

When a plateau suppresses a plume: Disappearance of the Samoan plume under the Ontong Java Plateau

MG Jackson, VA Finlayson, B Steinberger… - AGU …, 2024 - Wiley Online Library
The Samoan hotspot generated an age‐progressive volcanic track that can be traced back
to 24 Ma at Alexa Bank, but the trace of the older portion (> 24 Ma) of the hotspot track is …

Physical and mechanical rock properties of a heterogeneous volcano; the case of Mount Unzen, Japan

JE Kendrick, LN Schaefer, J Schauroth… - Solid Earth …, 2020 - se.copernicus.org
Volcanoes represent one of the most critical geological settings for hazard modelling due to
their propensity to both unpredictably erupt and collapse, even in times of quiescence …

[HTML][HTML] Plume–ridge interactions: ridgeward versus plate-drag plume flow

F Pang, J Liao, MD Ballmer, L Li - Solid Earth, 2023 - se.copernicus.org
The analysis of mid-ocean ridges and hotspots that are sourced by deep-rooted mantle
plumes allows us to get a glimpse of mantle structure and dynamics. Dynamical interaction …

Four distinct pulses of volcanism built the Melanesian Border Plateau: Implications for oceanic mid-plate superstructure formation

K Konrad, A Balbas, VA Finlayson, MG Jackson… - Earth and Planetary …, 2024 - Elsevier
The ocean basins contain numerous volcanic ridges, seamounts and large igneous
provinces (LIPs). Numerous studies have focused on the origin of seamount chains and LIPs …

Geochemistry of the Society and Pitcairn-Gambier mantle plumes: What they share and do not share

C Cordier, H Delavault, C Chauvel - Geochimica et Cosmochimica acta, 2021 - Elsevier
Abstract The South Pacific Superswell in Polynesia is associated with a large seismic mantle
anomaly at depth, the Polynesian dome, and it is characterized by the volcanic activity of five …

Distinguishing volcanic contributions to the overlap** Samoan and Cook-Austral hotspot tracks

AA Price, MG Jackson, J Blichert-Toft… - Journal of …, 2022 - academic.oup.com
To deconvolve contributions from the four overlap** hotspots that form the “hotspot
highway” on the Pacific plate—Samoa, Rarotonga, Arago-Rurutu, and Macdonald—we …