Extended Deep Earth Water Model for predicting major element mantle metasomatism

F Huang, DA Sverjensky - Geochimica et Cosmochimica Acta, 2019 - Elsevier
Fluids in the deep crust and upper mantle appear to have played roles in the long-term
evolution of the subcratonic lithospheric mantle and the stabilities of the continents, in the …

The composition of subduction zone fluids and the origin of the trace element enrichment in arc magmas

G Rustioni, A Audetat, H Keppler - Contributions to mineralogy and …, 2021 - Springer
The partitioning of major and trace elements between eclogite and aqueous fluids with
variable salinity was studied at 700–800° C and 4–6 GPa in piston cylinder and multi anvil …

Deserpentinization in subduction zones as a source of oxidation in arcs: A reality check

KA Evans, BR Frost - Journal of Petrology, 2020 - ieeexplore.ieee.org
Previous studies have concluded that dehydration of serpentinites in subduction zones
produces oxidizing fluids that are the cause of oxidized arc magmas. Here, observations of …

Electrolytic fluid speciation by Gibbs energy minimization and implications for subduction zone mass transfer

JAD Connolly, ME Galvez - Earth and Planetary Science Letters, 2018 - Elsevier
The number of solute species required to describe the thermodynamic behavior of
electrolytic fluids is a hindrance to the incorporation of aqueous geochemistry in petrological …

Magmatic controls on the genesis of porphyry Cu–Mo–Au deposits: The Bingham Canyon example

C Grondahl, Z Zajacz - Earth and Planetary Science Letters, 2017 - Elsevier
Bingham Canyon is one of the world's largest porphyry Cu–Mo–Au deposits and was
previously used as an example to emphasize the role of magma mixing and magmatic …

Element mobility during regional metamorphism in crustal and subduction zone environments with a focus on the rare earth elements (REE)

JJ Ague - American Mineralogist, 2017 - degruyter.com
This paper explores bulk-rock geochemical data for a wide array of metamorphosed mafic,
quartzo-feldspathic, pelitic, and metacarbonate rocks using a quantitative mass-balance …

[HTML][HTML] From oceanic to continental subduction: Implications for the geochemical and redox evolution of the supra-subduction mantle

E Cannaò, N Malaspina - Geosphere, 2018 - pubs.geoscienceworld.org
Processes taking place in subduction zones are the main controller of the chemical cycle of
volatile and incompatible elements in the Earth system. Metamorphic devolatilization …

Thermodynamic modelling of fluids from surficial to mantle conditions

DA Sverjensky - Journal of the Geological Society, 2019 - lyellcollection.org
Carbon is subducted to depths where metamorphism liberates water-bearing fluids. The C-
bearing fluids facilitate partial melting of the upper mantle, generating magmas that may …

Origin of negative cerium anomalies in subduction-related volcanic samples: Constraints from Ce and Nd isotopes

N Bellot, M Boyet, R Doucelance, P Bonnand… - Chemical …, 2018 - Elsevier
Abstract Negative Cerium (Ce) anomalies are observed in chondrite-normalized Rare Earth
Element patterns from various volcanic arc suites. These anomalies are well defined in …

A Mesoproterozoic to Jurassic history of continental eclogites from the Guatemala Suture Zone–implications for a peri-Amazonian ancestry

R Maldonado, L Solari, P Schaaf, B Weber - Gondwana Research, 2023 - Elsevier
Cretaceous continental eclogites of the Chuacús Complex (Guatemala Suture Zone) contain
an extensive record spanning more than 1.1 Ga. In this study, we combine U-Pb zircon …