The evolution of the Galápagos mantle plume

CR Soderman, O Shorttle, E Gazel, DJ Geist… - Science …, 2023 - science.org
The lavas associated with mantle plumes may sample domains throughout Earth's mantle
and probe its dynamics. However, plume studies are often only able to take snapshots in …

Spatial distribution and geochemical characterization of Icelandic mantle end-members: Implications for plume geometry and melting processes

S Harðardóttir, S Matthews, SA Halldorsson… - Chemical …, 2022 - Elsevier
We compile a new geochemical database (Icelandic Volcanic rocks Isotopic Database, IVID)
which includes previously reported 87 Sr/86 Sr, 143 Nd/144 Nd, 176 Hf/177 Hf, 206 Pb/204 …

Geodynamic, geodetic, and seismic constraints favour deflated and dense-cored LLVPs

FD Richards, MJ Hoggard, S Ghelichkhan… - Earth and Planetary …, 2023 - Elsevier
Two continent-sized features in the deep mantle, the large low-velocity provinces (LLVPs),
influence Earth's supercontinent cycles, mantle plume generation, and geochemical budget …

Formation of thermochemical heterogeneities by core‐mantle interaction

C Stein, U Hansen - Journal of Geophysical Research: Solid …, 2023 - Wiley Online Library
Earth's core‐mantle boundary (CMB) shows a complex structure with various seismic
anomalies such as the large low shear‐wave velocity provinces (LLSVPs) and ultra‐low …

The root to the Galápagos mantle plume on the core-mantle boundary

S Cottaar, C Martin, Z Li, R Parai - 2022 - eartharxiv.org
Ultra-low velocity zones (ULVZs) are thin anomalous patches on the boundary between the
Earth's core and mantle, revealed by their effects on the seismic waves that propagate …

[HTML][HTML] Diffusion, chemical bonding, and kinetic fractionation of noble gases in the primordial magma ocean

A Saurety, O Ozgurel, C Mohn, R Caracas - Geochimica et Cosmochimica …, 2024 - Elsevier
Noble gases record in their radiogenic/non-radiogenic isotope ratios the traces of accretion
history and degassing events from the early Earth, including giant impacts and the magma …

[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 …

pyMelt: An extensible Python engine for mantle melting calculations

S Matthews, K Wong, M Gleeson - Volcanica, 2022 - jvolcanica.org
Modelling the melting of Earth's mantle is crucial for understanding the distribution of
volcanic activity on Earth and for testing models of mantle convection and mantle lithological …

The Geochemical Evolution of Santa Cruz Island, Galápagos Archipelago

EL Wilson, KS Harpp, DM Schwartz… - Frontiers in Earth …, 2022 - frontiersin.org
Understanding how ocean island volcanoes evolve provides important insight into the
behavior of mantle plumes, how plumes interact with mid-ocean ridges, and potential risks …

Constraints on the behaviour and content of volatiles in Galápagos magmas from melt inclusions and nominally anhydrous minerals

MLM Gleeson, SA Gibson, MJ Stock - Geochimica et Cosmochimica Acta, 2022 - Elsevier
Despite their relatively low concentration in most oceanic basalts, volatile species (eg H 2 O,
CO 2 and S) have a disproportionately large influence on a wide range of mantle and …