Multiphase inclusions represent microenvironments where the interaction between fluid and host mineral is preserved during the rock geological path. Under its peculiar chemical-physical constraints, the entrapped solute-rich fluid might follow a crystallisation mechanism which is not predictable through simple equilibrium arguments. In this letter, by the modelling of solid-solution equilibrium and the application of principles of mass conservation, we demonstrate that cavities in mantle garnet filled with slab-derived fluids can re-equilibrate to a pyrope + spinel + chlorite assemblage at the same high P-T of their formation. The basis of this occurrence is a dissolution-reprecipitation mechanism, triggered by a dilute, non-equilibrated slab fluid.
Campione, M., Tumiati, S., & Malaspina, N. (2017). Primary spinel + chlorite inclusions in mantle garnet formed at ultrahigh-pressure. GEOCHEMICAL PERSPECTIVES LETTERS, 4, 19-23.
Citazione: | Campione, M., Tumiati, S., & Malaspina, N. (2017). Primary spinel + chlorite inclusions in mantle garnet formed at ultrahigh-pressure. GEOCHEMICAL PERSPECTIVES LETTERS, 4, 19-23. |
Tipo: | Articolo in rivista - Articolo scientifico |
Carattere della pubblicazione: | Scientifica |
Presenza di un coautore afferente ad Istituzioni straniere: | No |
Titolo: | Primary spinel + chlorite inclusions in mantle garnet formed at ultrahigh-pressure |
Autori: | Campione, M; Tumiati, S; Malaspina, N |
Autori: | |
Data di pubblicazione: | 2017 |
Lingua: | English |
Rivista: | GEOCHEMICAL PERSPECTIVES LETTERS |
Digital Object Identifier (DOI): | http://dx.doi.org/10.7185/geochemlet.1730 |
Appare nelle tipologie: | 01 - Articolo su rivista |
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