Complexity of graphite formation in response to metamorphic methane generation and transformation in an orogenic ultramafic body

A Boutier, I Martinez, O Sissmann, S Agostini… - … et Cosmochimica Acta, 2024 - Elsevier
The fate of carbon in subduction is explored by considering fluid-rock interactions in a body
of metamorphosed ultramafic rocks from the Appalachian belt as potential proxies for …

Formation of hydrocarbons favored by high pressure at subduction zone conditions

J Huang, I Daniel, DA Sverjensky, H Cardon… - Chemical …, 2023 - Elsevier
Subduction zones enable carbon transport to the deep Earth. Inorganic and organic carbon
in fluids released from the subducted slab are important in water-rock interactions. However …

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 …

Experimental dissolution of carbonaceous materials in water at 1 GPa and 550° C: Assessing the role of carbon forms and redox state on COH fluid production and …

L Toffolo, S Tumiati, A Villa, P Fumagalli… - Frontiers in Earth …, 2023 - frontiersin.org
Biogenic carbonaceous material (CM) is the main carrier of organic carbon in the subduction
zone and contributes to COH fluid production and volcanic arc gaseous emissions. Here we …

Immiscible metamorphic water and methane fluids preserved in carbonated eclogite

L Zhang, N Qi, Y Li, X Wang, L Zhang - Communications Chemistry, 2024 - nature.com
Subduction zones metamorphic fluids are pivotal in geological events such as volcanic
eruptions, seismic activity, mineralization, and the deep carbon cycle. However, the …

A reliable analytical procedure to determine the carbon isotopic signature of CO2-bearing COH fluids generated in petrological experiments

L Toffolo, L Minopoli, E Ferrari… - European Journal of …, 2025 - ejm.copernicus.org
The ratio of stable carbon isotopes, δ 13 C, serves as a fundamental tracer for geological
processes. Experiments aiming to replicate isotopic exchange between carbon reservoirs …