Preferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleation

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dc.contributor.authorNagurney, Alexandra B.en
dc.contributor.authorCaddick, Mark J.en
dc.contributor.authorPattison, David R.M.en
dc.contributor.authorMichel, F. Marcen
dc.date.accessioned2021-09-02T17:44:47Zen
dc.date.available2021-09-02T17:44:47Zen
dc.date.issued2021en
dc.description.abstractElectron 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.en
dc.description.sponsorshipThis work was funded by two GSA Graduate Student Research Grants, an AAPG Grant in Aid, and a research scholarship from the Virginia Tech Department of Geosciences to Nagurney. Nagurney also acknowledges support from the Virginia Tech ICTAS Doctoral Scholars Program.en
dc.description.versionPublished versionen
dc.format.extent9 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1038/s41598-021-85525-7en
dc.identifier.urihttp://hdl.handle.net/10919/104921en
dc.identifier.volume11en
dc.language.isoenen
dc.publisherNature Researchen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titlePreferred orientations of garnet porphyroblasts reveal previously cryptic templating during nucleationen
dc.title.serialScientific Reportsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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