Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation

Abstract Electron back scattered diffraction data of garnet crystals from the Nelson Aureole, British Columbia and the Mosher’s Island formation, Nova Scotia, reveals that 22 garnet crystals are all oriented with one of three crystal directions parallel to the trace of the foliation plane in thin se...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Alexandra B. Nagurney, Mark J. Caddick, David R. M. Pattison, F. Marc Michel
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b0f4481f49474a3691c3ab17dc579e64
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b0f4481f49474a3691c3ab17dc579e64
record_format	dspace
spelling	oai:doaj.org-article:b0f4481f49474a3691c3ab17dc579e642021-12-02T17:04:06ZPreferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation10.1038/s41598-021-85525-72045-2322https://doaj.org/article/b0f4481f49474a3691c3ab17dc579e642021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85525-7https://doaj.org/toc/2045-2322Abstract Electron back scattered diffraction data of garnet crystals from the Nelson Aureole, British Columbia and the Mosher’s Island formation, Nova Scotia, reveals that 22 garnet crystals are all oriented with one of three crystal directions parallel to the trace of the foliation plane in thin section. Structural models suggest that these relationships are due to preferential garnet nucleation onto muscovite, with the alignment of repeating rows of Al octahedra and Si tetrahedra in each leading to inheritance of garnet orientation from the muscovite. These results highlight that epitaxial nucleation may be a prevalent process by which porphyroblast minerals nucleate during metamorphism and carry implications for the role that non-classic nucleation pathways play in the crystallization of metamorphic minerals, the distribution of porphyroblasts in metamorphic rocks, and, in cases in which nucleation is the rate limiting step for crystallization, the energetics of metamorphic reactions.Alexandra B. NagurneyMark J. CaddickDavid R. M. PattisonF. Marc MichelNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alexandra B. Nagurney Mark J. Caddick David R. M. Pattison F. Marc Michel Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation
description	Abstract Electron back scattered diffraction data of garnet crystals from the Nelson Aureole, British Columbia and the Mosher’s Island formation, Nova Scotia, reveals that 22 garnet crystals are all oriented with one of three crystal directions parallel to the trace of the foliation plane in thin section. Structural models suggest that these relationships are due to preferential garnet nucleation onto muscovite, with the alignment of repeating rows of Al octahedra and Si tetrahedra in each leading to inheritance of garnet orientation from the muscovite. These results highlight that epitaxial nucleation may be a prevalent process by which porphyroblast minerals nucleate during metamorphism and carry implications for the role that non-classic nucleation pathways play in the crystallization of metamorphic minerals, the distribution of porphyroblasts in metamorphic rocks, and, in cases in which nucleation is the rate limiting step for crystallization, the energetics of metamorphic reactions.
format	article
author	Alexandra B. Nagurney Mark J. Caddick David R. M. Pattison F. Marc Michel
author_facet	Alexandra B. Nagurney Mark J. Caddick David R. M. Pattison F. Marc Michel
author_sort	Alexandra B. Nagurney
title	Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation
title_short	Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation
title_full	Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation
title_fullStr	Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation
title_full_unstemmed	Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation
title_sort	preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b0f4481f49474a3691c3ab17dc579e64
work_keys_str_mv	AT alexandrabnagurney preferredorientationsofgarnetporphyroblastsrevealpreviouslycryptictemplatingduringnucleation AT markjcaddick preferredorientationsofgarnetporphyroblastsrevealpreviouslycryptictemplatingduringnucleation AT davidrmpattison preferredorientationsofgarnetporphyroblastsrevealpreviouslycryptictemplatingduringnucleation AT fmarcmichel preferredorientationsofgarnetporphyroblastsrevealpreviouslycryptictemplatingduringnucleation
_version_	1718381867945689088

Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation

Ejemplares similares