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Magmatic inclusions in the search for natural silicate-salt melt immiscibility: methodology and examples

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posted on 2023-05-28, 01:07 authored by Vadim Kamenetsky, De Vivo, B, Naumov, VB, Kamenetsky, MB, Mernagh, TP, van Achterbergh, E, Ryan, CG, Davidson, P
Immiscible phase separation during the cooling and crystallisation of magmas is an inherently fugitive phenomenon and melt inclusions may provide the only remaining evidence of this process. We detail those features of such inclusions that can both prove the existence of immiscible phase separation, and constrain the compositional signature of the process. To do so requires the combination of traditional methods (petrographic examination, microthermometry, etc.) with state of the art microbeam analytical techniques (laser Raman spectroscopy and proton-induced X-ray emission). Examples of inclusions in phenocrysts from barren and mineralised rocks are provided to illustrate the approach and validate the interpretations.

History

Publication title

Melt inclusions in volcanic systems : methods, applications and problems

Series

Developments in volcanology

Number

5

Pagination

65-82

ISBN

978-0444511515

Publisher

Elsevier, Amsterdam

Publication status

  • Published

Repository Status

  • Open

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