The influence of δ-(Al,Fe)OOH on seismic heterogeneities in Earth's lower mantle.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
08 Jun 2021
08 Jun 2021
Historique:
received:
19
11
2020
accepted:
17
05
2021
entrez:
9
6
2021
pubmed:
10
6
2021
medline:
10
6
2021
Statut:
epublish
Résumé
The high-pressure phases of oxyhydroxides (δ-AlOOH, ε-FeOOH, and their solid solution), candidate components of subducted slabs, have wide stability fields, thus potentially influencing volatile circulation and dynamics in the Earth's lower mantle. Here, we report the elastic wave velocities of δ-(Al,Fe)OOH (Fe/(Al + Fe) = 0.13, δ-Fe13) to 79 GPa, determined by nuclear resonant inelastic X-ray scattering. At pressures below 20 GPa, a softening of the phonon spectra is observed. With increasing pressure up to the Fe
Identifiants
pubmed: 34103572
doi: 10.1038/s41598-021-91180-9
pii: 10.1038/s41598-021-91180-9
pmc: PMC8187711
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
12036Subventions
Organisme : Japan Society for the Promotion of Science
ID : JP16J04690
Organisme : Japan Society for the Promotion of Science
ID : JP15H05828
Organisme : Japan Society for the Promotion of Science
ID : JP15H05748
Organisme : National Science Foundation
ID : NSF-CSEDI-EAR-1600956
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