Rupture of wet mantle wedge by self-promoting carbonation

A Okamoto, R Oyanagi, K Yoshida, M Uno… - … Earth & Environment, 2021 - nature.com
More than one teramole of carbon per year is subducted as carbonate or carbonaceous
material. However, the influence of carbonation/decarbonation reactions on seismic activity …

[HTML][HTML] From peridotite to listvenite–perspectives on the processes, mechanisms and settings of ultramafic mineral carbonation to quartz-magnesite rocks

MD Menzel, MJ Sieber, M Godard - Earth-Science Reviews, 2024 - Elsevier
Listvenites form by metasomatic transformation of variably serpentinized peridotites to
carbonate-quartz rocks due to extensive reaction with CO 2-bearing aqueous fluids. This …

CO2 outgassing during collisional orogeny is facilitated by the generation of immiscible fluids

C Groppo, F Rolfo, ML Frezzotti - Communications Earth & Environment, 2022 - nature.com
Orogenic degassing is emerging as a potentially relevant source of carbon dioxide (CO2)
from the continental crust. However, the processes of carbon mobilization are still poorly …

Dehydration at subduction zones and the geochemistry of slab fluids

W Li, H Ni - Science China Earth Sciences, 2020 - Springer
Subducting oceanic slabs undergo metamorphic dehydration with the increase of
temperature and pressure during subduction. Dehydration is an essential step for element …

Abiotic methane generation through reduction of serpentinite-hosted dolomite: implications for carbon mobility in subduction zones

W Peng, L Zhang, S Tumiati, AV Brovarone… - … et Cosmochimica Acta, 2021 - Elsevier
Abiotic methane has been increasingly detected at the surface of Earth and other terrestrial
planets, exerting a strong effect on the study of chemolithoautotrophic life and thus …

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 …

Thermodynamic analysis of HP-UHP fluid inclusions: The solute load and chemistry of metamorphic fluids

A Maffeis, S Ferrando, JAD Connolly, C Groppo… - … et Cosmochimica Acta, 2021 - Elsevier
Subduction fluids play a crucial role in regulating long-term chemical cycles. Their
characterisation is essential to understand the processes responsible for metasomatism …

Metasedimentary “carbon filter” and its implication for subduction zone carbon recycling

JL Li, EM Stewart, T John, JJ Ague, ZR Wang… - Earth and Planetary …, 2024 - Elsevier
The movement of carbon in subduction zones plays a crucial role in regulating the global
carbon cycle, controlling Earth's climate, and maintaining its habitability. Recent work …

Gold and sulfide-bearing listvenite in the mantle section of the Tays ophiolite in the Arabian Shield, Saudi Arabia

F Alshehri, MK Azer, PD Asimow, BA Abuamarah - Geochemistry, 2024 - Elsevier
The mantle section of the Late Neoproterozoic Tays ophiolite in the Arabian Shield consists
principally of thoroughly serpentinized peridotite with characteristics typical of depleted …

Abiotic passive nitrogen and methane enrichment during exhumation of subducted rocks: Primary multiphase fluid inclusions in high‐pressure rocks from the Cabo …

T Spránitz, JA Padrón‐Navarta, C Szabó… - Journal of …, 2022 - Wiley Online Library
Primary multiphase fluid inclusions (MFI) were studied in one eclogite and two granulites
from the Cabo Ortegal Complex (COC, NW Spain) by means of Raman imaging, Scanning …