GMPV4.5 | What makes Earth so special? The role of melts and fluids in global volatile cycles
What makes Earth so special? The role of melts and fluids in global volatile cycles
Convener: Alessia BorghiniECSECS | Co-conveners: Carla Tiraboschi, Sally Gibson, Jacob ForshawECSECS, Andrea MaffeisECSECS, Bruna B. Carvalho
Orals
| Thu, 18 Apr, 14:00–18:00 (CEST)
 
Room -2.21
Posters on site
| Attendance Fri, 19 Apr, 10:45–12:30 (CEST) | Display Fri, 19 Apr, 08:30–12:30
 
Hall X1
Posters virtual
| Attendance Fri, 19 Apr, 14:00–15:45 (CEST) | Display Fri, 19 Apr, 08:30–18:00
 
vHall X1
Orals |
Thu, 14:00
Posters on site |
Fri, 10:45
Posters virtual
Fri, 14:00
Volatiles (e.g., H2O, CO2, Cl, F, S) play a fundamental role in Earth’s dynamic systems and profoundly contribute to the well-being and sustainability of life, making our planet unique. This is largely because volatiles influence planetary scale processes, including those that connect Earth’s deep and surface systems, such as melting, mineral stability and element mass transfer. These global cycles involve an efficient transfer of volatiles from our planet’s surface to its interior via subduction zones, mobilization by melts and fluids, and eventually emission to the atmosphere via volcanism. Volatiles may also be stored in the mantle, and possibly be re-mobilized.
The investigation of volatiles in melts and fluids through novel and multi-disciplinary approaches continues to yield important insights into the inner workings of our planet. This session aims to gather contributions from scientists involved in the broad spectrum of volatile cycles, with a focus on the principal carriers of these elements: melts and fluids. We welcome contributions from the different fields of petrology and geochemistry, via investigations of natural samples and experimental studies.
We particularly invite contributions on: i) deep volatiles cycles of H2O, CO2, halogens and S; ii) volatiles mobilization and transfer during subduction in COHNS fluids and silicate melts; iii) volatiles in metasomatic processes; iv) volatiles-bearing fluids and melts properties; v) volatiles storage in the lithospheric mantle; vi) volatiles emission and storage in volcanic systems.

Orals: Thu, 18 Apr | Room -2.21

Chairpersons: Alessia Borghini, Carla Tiraboschi, Sally Gibson
14:10–14:15
Discussion
EGU24-7266
|
ECS
|
On-site presentation
Machine learning for reconstructing the primary carbon contents of mid-ocean ridge basalts
Tian-Ting Lei et al.
EGU24-5032
|
ECS
|
On-site presentation
Ophicarbonates transport carbon to the deep mantle: a case study from the Zermatt-Saas ophiolite
Francesca Piccoli et al.
Coffee break
Chairpersons: Alessia Borghini, Jacob Forshaw, Andrea Maffeis
EGU24-5041
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solicited
|
Virtual presentation
Micro-windows to deep COH-rich planetary fluids and associated mantle processes
Yaakov Weiss
16:25–16:30
Discussion
EGU24-15241
|
ECS
|
On-site presentation
Melting of hydrous and hydrous-carbonated eclogite in the mantle
Andrea Curtolo et al.
EGU24-3452
|
ECS
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On-site presentation
Magmatic nanogranitoids in the Late Cretacous zircon from Slavonian Mts. (Croatia)
Petra Schneider and Dražen Balen

Posters on site: Fri, 19 Apr, 10:45–12:30 | Hall X1

Display time: Fri, 19 Apr 08:30–Fri, 19 Apr 12:30
Chairpersons: Alessia Borghini, Bruna B. Carvalho, Jacob Forshaw
EGU24-9886
|
ECS
|
On-site presentation
Sulfur disproportionation in sub-arc COHS slab fluids drives mantle wedge oxidation
Andrea Maffeis et al.
EGU24-10189
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ECS
|
OSPP
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On-site presentation
The C, H2O and S budget of the deep crust (Ossola Valley, Ivrea-Verbano Zone)
Sarah Degen et al.
EGU24-11595
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On-site presentation
It’s on the way up! Syn-exhumation paragenesis of glaucophane-phengite-quartz veins
David Schneider et al.
EGU24-17103
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ECS
|
On-site presentation
Hydrogen in orthopyroxene records oxidation during hydration of the cold mantle wedge
María Ramón-Fernández et al.
EGU24-8247
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ECS
|
On-site presentation
Linking zircon formation to partial melting events in Kerala Khondalite using nanogranitoids
Kerstin Gresky et al.

Posters virtual: Fri, 19 Apr, 14:00–15:45 | vHall X1

Display time: Fri, 19 Apr 08:30–Fri, 19 Apr 18:00
Chairpersons: Sally Gibson, Alessia Borghini, Carla Tiraboschi