Volatile-bearing partial melts in the lithospheric and sub-lithospheric mantle on Earth and other rocky planets

R Dasgupta, P Chowdhury… - … in Mineralogy and …, 2022 - pubs.geoscienceworld.org
Generation and extraction of partial melts from the interior of rocky planets are essential
steps for supplying heat and life-essential nutrients to the surface environments …

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 …

Carbon-saturated COH fluids in the upper mantle: a review of high-pressure and high-temperature ex situ experiments

C Tiraboschi, F Miozzi, S Tumiati - European Journal of …, 2022 - ejm.copernicus.org
High-pressure COH fluids have a fundamental role in a variety of geological processes.
Their composition in terms of volatile species can control the solidus temperature and …

Slab–mantle interaction, carbon transport, and kimberlite generation in the deep upper mantle

C Sun, R Dasgupta - Earth and Planetary Science Letters, 2019 - Elsevier
Low-degree partial melts from deeply subducted, carbonated ocean crust are carbonatite
liquids with∼ 35–47 wt% CO 2. Their reactions with the overlying mantle regulate the slab …

Experimental investigation of the composition of incipient melts in upper mantle peridotites in the presence of CO2 and H2O

Z Pintér, SF Foley, GM Yaxley, A Rosenthal, RP Rapp… - Lithos, 2021 - Elsevier
The compositions of mantle-derived magmas indicate a substantial variety in the
abundances of volatiles in the upper mantle. CO 2 and H 2 O depress the melting point of …

Thermobarometry of CO2-rich, silica-undersaturated melts constrains cratonic lithosphere thinning through time in areas of kimberlitic magmatism

C Sun, R Dasgupta - Earth and Planetary Science Letters, 2020 - Elsevier
Cratonic lithosphere is believed to have been chemically buoyant and mechanically
resistant to destruction over billions of years. Yet the absence of cratonic roots at some …

Origin of low-MgO primitive intraplate alkaline basalts from partial melting of carbonate-bearing eclogite sources

Z Zou, Z Wang, S Foley, R Xu, X Geng, YN Liu… - … et Cosmochimica Acta, 2022 - Elsevier
Alkaline basalts occur widely in intraplate settings and carbonate-bearing mantle sources
such as carbonated peridotites are increasingly regarded to play a key role in their …

Coupled cycling of carbon and water in the form of hydrous carbonatitic liquids in the subarc region

W Chen, S Keshav, W Peng… - Journal of Geophysical …, 2023 - Wiley Online Library
The melting behavior of subducted ophicarbonate is experimentally investigated under
conditions relevant for slabs at subarc depths (2.5–6 GPa and 650–1000° C). Hydrous …

Using major element logratios to recognize compositional patterns of basalt: Implications for source lithological and compositional heterogeneities

ZF Yang, J Li, QB Jiang, F Xu, SY Guo… - … Research: Solid Earth, 2019 - Wiley Online Library
Understanding the source lithology of basalts can greatly impact our understanding of
magmatic processes, which can help us gain insight into mantle heterogeneity and crustal …

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 …