The G alápagos I slands: biogeographic patterns and geology

M Heads, JR Grehan - Biological Reviews, 2021 - Wiley Online Library
In the traditional biogeographic model, the Galápagos Islands appeared a few million years
ago in a sea where no other islands existed and were colonized from areas outside the …

Low Ni olivine in silica-undersaturated ultrapotassic igneous rocks as evidence for carbonate metasomatism in the mantle

E Ammannati, DE Jacob, R Avanzinelli, SF Foley… - Earth and Planetary …, 2016 - Elsevier
Subduction drags a large amount of CO 2 into the Earth's interior, which is partly returned to
the atmosphere by arc volcanism. Processes involved in the recycling of subducted carbon …

Nickel–cobalt contents of olivine record origins of mantle peridotite and related rocks

C Herzberg, C Vidito, NA Starkey - American Mineralogist, 2016 - degruyter.com
Olivine is distinguished from all other minerals in providing a remarkable chemical narrative
about magmatic processes that occurred in Earth's crust, mantle, and core over the entire …

Architectural and tectonic control on the segmentation of the Central American volcanic arc

E Gazel, KE Flores, MJ Carr - Annual Review of Earth and …, 2021 - annualreviews.org
Central America has a rich mix of conditions that allow comparisons of different natural
experiments in the generation of arc magmas within the relatively short length of the margin …

The hottest lavas of the Phanerozoic and the survival of deep Archaean reservoirs

J Trela, E Gazel, AV Sobolev, L Moore, M Bizimis… - Nature …, 2017 - nature.com
Large igneous provinces and some hotspot volcanoes are thought to form above
thermochemical anomalies known as mantle plumes. Petrologic investigations that support …

Understanding the Paleoproterozoic Circum-Superior Large Igneous Province constrains the thermal properties of Earth's mantle through time

C Herzberg - Precambrian Research, 2022 - Elsevier
Basalts and komatiites in the∼ 1880 Ma Paleoproterozoic Circum-Superior Large Igneous
Province are associated in space and time with the closure/subduction of the Manikewan …

Olivine chemistry reveals compositional source heterogeneities within a tilted mantle plume beneath Iceland

MB Rasmussen, SA Halldórsson, SA Gibson… - Earth and Planetary …, 2020 - Elsevier
Abstract High-Fo olivine (Fo= Mg/(Mg+ Fe) mol%) is an ideal proxy for establishing the
compositions of primary melts and their mantle sources. This has been exploited in …

Sulfur concentration of martian basalts at sulfide saturation at high pressures and temperatures–implications for deep sulfur cycle on Mars

S Ding, R Dasgupta, K Tsuno - Geochimica et Cosmochimica Acta, 2014 - Elsevier
To constrain sulfur concentration at sulfide saturation (SCSS) of martian magmas at mantle
conditions, we simulated basalt-sulfide melt equilibria using two synthesized meteorite …

Record of massive upwellings from the Pacific large low shear velocity province

P Madrigal, E Gazel, KE Flores, M Bizimis… - Nature …, 2016 - nature.com
Large igneous provinces, as the surface expression of deep mantle processes, play a key
role in the evolution of the planet. Here we analyse the geochemical record and timing of the …

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 …