[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 …

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 …

[HTML][HTML] The isotopic origin of Lord Howe Island reveals secondary mantle plume twinning in the Tasman Sea

A Rogers, M Flanigan, O Nebel, Y Nebel-Jacobsen… - Chemical …, 2023 - Elsevier
Thermochemical convective instabilities in the mantle, often referred to as mantle plumes,
cause mantle melting that give rise to ocean island basalts (OIB) in intraplate settings. The …

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 …

Toroidal flow around the Tonga slab moved the Samoan plume during the Pliocene

K Konrad, M Jackson, B Steinberger… - …, 2024 - pubs.geoscienceworld.org
Age-progressive seamount tracks generated by lithospheric motion over a stationary mantle
plume have long been used to reconstruct absolute plate motion (APM) models. However …

Geochronological and geochemical constraints on the petrogenesis and geodynamic process of Hemler, Vlinder, and Il'ichev seamount lavas in NW Pacific

X Wei, Y Zhang, X Shi, H Zhang - Science China Earth Sciences, 2024 - Springer
Oceanic intraplate volcanoes with linear age progressions are usually accepted to be
derived from melting of an upwelling mantle plume. Several seamount groups in NW Pacific …

The longest-lived Pacific hotspots reveal a plume tail for the largest oceanic plateau

JG Konter, V Finlayson, K Konrad, MG Jackson… - 2023 - eartharxiv.org
Volcanic hotspots are thought to initially form by melting in an upwelling mantle plume head
followed by melting of the plume tail. Plate motion then generates an age progressive …