Dense hydrated Mg-silicates in diamond : implications for transport of H2O into the mantle.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorCarvalho, Luisa Diniz Vilela de-
Autor(es): dc.creatorStachel, Thomas-
Autor(es): dc.creatorLuth, Robert W.-
Autor(es): dc.creatorLocock, Andrew J.-
Autor(es): dc.creatorPearson, D. Graham-
Autor(es): dc.creatorSteele-MacInnis, Matthew-
Autor(es): dc.creatorStern, Richard A.-
Autor(es): dc.creatorNestola, Fabrizio-
Autor(es): dc.creatorCipriano, Ricardo Augusto Scholz-
Autor(es): dc.creatorJalowitzki, Tiago Luis Reis-
Autor(es): dc.creatorFuck, Reinhardt Adolfo-
Data de aceite: dc.date.accessioned2025-08-21T15:57:55Z-
Data de disponibilização: dc.date.available2025-08-21T15:57:55Z-
Data de envio: dc.date.issued2024-09-09-
Data de envio: dc.date.issued2024-09-09-
Data de envio: dc.date.issued2023-
Fonte completa do material: dc.identifierhttps://www.repositorio.ufop.br/handle/123456789/18561-
Fonte completa do material: dc.identifierhttps://www.science.org/doi/10.1126/sciadv.adl4306-
Fonte completa do material: dc.identifierhttps://doi.org/10.1126/sciadv.adl4306-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1028737-
Descrição: dc.descriptionWater in Earth’s upper mantle is a minor and yet critically important component that dictates mantle properties such as strength and melting behavior. Minerals with stoichiometric water, such as those of the humite group, are important yet poorly characterized potential reservoirs for volatiles in the upper mantle. Here, we report observation of hydroxyl members of the humite group as inclusions in mantle-derived diamond. Hydroxylchondrodite and hydroxylclinohumite were found coexisting with olivine, magnesiochromite, Mg- bearing calcite, dolomite, quartz, mica, and a djerfisherite-group mineral in a diamond from Brazil. The olivine is highly forsteritic (Mg# 97), with non–mantle- like oxygen isotope composition (δ 18O +6.2‰), and is associated with fluid inclusions and hydrous minerals—features that could be inherited from a serpentinite protolith. Our results constitute direct evidence for the presence of deserpentinized peridotitic protoliths in subcratonic mantle keels, placing important constraints on the stability of hydrous phases in the mantle and the origin of diamond- forming fluids.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Título: dc.titleDense hydrated Mg-silicates in diamond : implications for transport of H2O into the mantle.-
Aparece nas coleções:Repositório Institucional - UFOP

Não existem arquivos associados a este item.