GMPV4.6 | Garnet and its inclusions: an archive of geological processes
EDI
Garnet and its inclusions: an archive of geological processes
Convener: Gabriele Cruciani | Co-conveners: Silvio FerreroECSECS, Lorraine Tual, Mattia GilioECSECS, Iwona KlonowskaECSECS
Orals
| Fri, 19 Apr, 10:45–12:30 (CEST)
 
Room -2.33
Posters on site
| Attendance Fri, 19 Apr, 16:15–18:00 (CEST) | Display Fri, 19 Apr, 14:00–18:00
 
Hall X1
Posters virtual
| Attendance Fri, 19 Apr, 14:00–15:45 (CEST) | Display Fri, 19 Apr, 08:30–18:00
 
vHall X1
Orals |
Fri, 10:45
Posters on site |
Fri, 16:15
Posters virtual
Fri, 14:00
Garnet preserves and records in an exceptionally way the geochemical conditions at which it equilibrates. Because it is stable across most of the lithosphere and found in very different protoliths, garnet provides a unique perspective to track deep geochemical processes, from magmatic ones to those responsible for the formation of ore deposits. Its stability over an extremely wide range of pressure and temperature (P–T) and its durability and resilience as detrital material make garnet an invaluable archive to unravel crustal evolution and planetary processes across geological timescale. Using this mineral as an archive where one can read the history of natural rocks, petrologists can reconstruct the P-T history and evolution of igneous and metamorphic rocks. Microstructures, compositional zoning, and elastic behaviour of its inclusions are just a few of the many aspects of great interest to better comprehend the history and fate of garnet-bearing rocks. Indeed, for instance the relatively slow diffusivity of trace elements in garnet allows the preservation of growth zones resulting from complex evolutions. When detrital, meticulous work on a high number of crystals allows to discover unexpected new evidences of UHP metamorphism and/or to collect new data on the tectono-metamorphic evolution of ancient basements. Finally, recent analytical improvements in dating of individual growth zones with high resolution or in-situ provide new opportunities to date the evolution and rate of a wide spectrum of geological and tectonic processes, while stable isotope zoning in garnet is the new frontier in exploring fluid/melt-rock interactions at depth.
We invite geoscientists from all kind of geological expertise to contribute to our session with their insights and approaches to unlock the secrets of this remarkable and useful mineral. Studies of fluid, melt and mineral inclusions within garnets and the application of innovative analytical techniques methodological approaches are also welcome.

Session assets

Session materials

Orals: Fri, 19 Apr | Room -2.33

Chairpersons: Gabriele Cruciani, Silvio Ferrero, Lorraine Tual
10:45–10:50
5-minute convener introduction
EGU24-10096
|
ECS
|
On-site presentation
Formation of various trace element zoning patterns in high-pressure metamorphic garnet
Jan Kulhánek and Shah Wali Faryad
EGU24-17450
|
ECS
|
On-site presentation
Extending (Garnet) Diffusion Modelling into Multidimensional Domains
Ben Knight and Chris Clark
EGU24-5398
|
On-site presentation
Distinguishing cooling histories via Diffusion Geospeedometry
Evangelos Moulas and Kurt Stüwe
EGU24-14917
|
ECS
|
On-site presentation
Detrital Garnet Petrology: Inclusions as a main source of information
Jan Schönig
EGU24-15529
|
Highlight
|
On-site presentation
Common, non-cubic garnet in metamorphic rocks: the state of the art
Bernardo Cesare et al.
EGU24-18033
|
ECS
|
On-site presentation
Exploring Garnet’s Geochemical Variations: Insights into Base Metal Deposits 
Joëlle D'Andres et al.
EGU24-9255
|
ECS
|
On-site presentation
Mineral inclusions under non-ambient conditions
Nicola Campomenosi et al.

Posters on site: Fri, 19 Apr, 16:15–18:00 | Hall X1

Display time: Fri, 19 Apr 14:00–Fri, 19 Apr 18:00
Chairpersons: Silvio Ferrero, Iwona Klonowska, Mattia Gilio
EGU24-11318
|
ECS
|
On-site presentation
Nanostructural and chemical evolution of garnet during high-strain deformation
Renelle Dubosq 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: Silvio Ferrero, Lorraine Tual, Iwona Klonowska