Ultrafast olivine-ringwoodite transformation during shock compression.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
14 Jul 2021
14 Jul 2021
Historique:
received:
26
03
2020
accepted:
22
06
2021
entrez:
15
7
2021
pubmed:
16
7
2021
medline:
16
7
2021
Statut:
epublish
Résumé
Meteorites from interplanetary space often include high-pressure polymorphs of their constituent minerals, which provide records of past hypervelocity collisions. These collisions were expected to occur between kilometre-sized asteroids, generating transient high-pressure states lasting for several seconds to facilitate mineral transformations across the relevant phase boundaries. However, their mechanisms in such a short timescale were never experimentally evaluated and remained speculative. Here, we show a nanosecond transformation mechanism yielding ringwoodite, which is the most typical high-pressure mineral in meteorites. An olivine crystal was shock-compressed by a focused high-power laser pulse, and the transformation was time-resolved by femtosecond diffractometry using an X-ray free electron laser. Our results show the formation of ringwoodite through a faster, diffusionless process, suggesting that ringwoodite can form from collisions between much smaller bodies, such as metre to submetre-sized asteroids, at common relative velocities. Even nominally unshocked meteorites could therefore contain signatures of high-pressure states from past collisions.
Identifiants
pubmed: 34262045
doi: 10.1038/s41467-021-24633-4
pii: 10.1038/s41467-021-24633-4
pmc: PMC8280208
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
4305Subventions
Organisme : MEXT | Japan Society for the Promotion of Science (JSPS)
ID : 20K20947
Organisme : MEXT | Japan Society for the Promotion of Science (JSPS)
ID : 17H01172
Organisme : MEXT | Japan Society for the Promotion of Science (JSPS)
ID : 20H01965
Organisme : MEXT | Japan Society for the Promotion of Science (JSPS)
ID : 16H02246
Informations de copyright
© 2021. The Author(s).
Références
Nature. 2005 Jun 23;435(7045):1071-4
pubmed: 15973403
Proc Natl Acad Sci U S A. 2008 Jun 24;105(25):8542-7
pubmed: 18562280
Proc Natl Acad Sci U S A. 2009 Aug 18;106(33):13691-5
pubmed: 19667178
Science. 2003 Apr 4;300(5616):105-8
pubmed: 12610229
Sci Adv. 2017 Jun 02;3(6):e1602705
pubmed: 28630909
Nature. 2014 Mar 13;507(7491):221-4
pubmed: 24622201
Sci Adv. 2016 Dec 09;2(12):e1601658
pubmed: 27957541
Phys Rev Lett. 2012 Oct 5;109(14):144801
pubmed: 23083249
Science. 2011 Aug 26;333(6046):1113-6
pubmed: 21868667
Sci Rep. 2017 Dec 11;7(1):17351
pubmed: 29229951
Nat Commun. 2015 Sep 04;6:8191
pubmed: 26337754
Proc Natl Acad Sci U S A. 2004 Oct 19;101(42):15033-7
pubmed: 15479764
Sci Adv. 2016 Aug 03;2(8):e1600157
pubmed: 27493993
Science. 2011 Aug 26;333(6046):1125-8
pubmed: 21868671
Science. 2006 Jun 2;312(5778):1330-4
pubmed: 16741107
Phys Chem Chem Phys. 2016 Jul 21;18(27):18563-74
pubmed: 27344965
Rev Sci Instrum. 2014 Mar;85(3):033110
pubmed: 24689567