dc.date.accessioned | 2021-01-11T20:28:06Z | |
dc.date.available | 2021-01-11T20:28:06Z | |
dc.date.created | 2020-12-24T13:20:37Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Hernandez, Jean-Alexis Robert Morard, Guillaume Guarguaglini, Marco Alonso-Mori, Roberto Benuzzi-Mounaix, Alessandra Bolis, Riccardo Fiquet, Guillaume Galtier, Eric Gleason, Arianna E. Glenzer, Siegfried Guyot, François Ko, Byeongkwan Lee, Hae Ja Mao, W. L. Nagler, Bob Ozaki, N Schuster, A. K. Shim, S. H. Vinci, Tommaso Ravasio, Alessandra . Direct Observation of Shock‐Induced Disordering of Enstatite Below the Melting Temperature. Geophysical Research Letters. 2020, 47(15) | |
dc.identifier.uri | http://hdl.handle.net/10852/82109 | |
dc.description.abstract | We report in situ structural measurements of shock‐compressed single crystal orthoenstatite up to 337 ± 55 GPa on the Hugoniot, obtained by coupling ultrafast X‐ray diffraction to laser‐driven shock compression. Shock compression induces a disordering of the crystalline structure evidenced by the appearance of a diffuse X‐ray diffraction signal at nanosecond timescales at 80 ± 13 GPa on the Hugoniot, well below the equilibrium melting pressure (>170 GPa). The formation of bridgmanite and post‐perovskite have been indirectly reported in microsecond‐scale plate‐impact experiments. Therefore, we interpret the high‐pressure disordered state we observed at nanosecond scale as an intermediate structure from which bridgmanite and post‐perovskite crystallize at longer timescales. This evidence of a disordered structure of MgSiO3 on the Hugoniot indicates that the degree of polymerization of silicates is a key parameter to constrain the actual thermodynamics of shocks in natural environments. | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Direct Observation of Shock‐Induced Disordering of Enstatite Below the Melting Temperature | |
dc.type | Journal article | |
dc.creator.author | Hernandez, Jean-Alexis Robert | |
dc.creator.author | Morard, Guillaume | |
dc.creator.author | Guarguaglini, Marco | |
dc.creator.author | Alonso-Mori, Roberto | |
dc.creator.author | Benuzzi-Mounaix, Alessandra | |
dc.creator.author | Bolis, Riccardo | |
dc.creator.author | Fiquet, Guillaume | |
dc.creator.author | Galtier, Eric | |
dc.creator.author | Gleason, Arianna E. | |
dc.creator.author | Glenzer, Siegfried | |
dc.creator.author | Guyot, François | |
dc.creator.author | Ko, Byeongkwan | |
dc.creator.author | Lee, Hae Ja | |
dc.creator.author | Mao, W. L. | |
dc.creator.author | Nagler, Bob | |
dc.creator.author | Ozaki, N | |
dc.creator.author | Schuster, A. K. | |
dc.creator.author | Shim, S. H. | |
dc.creator.author | Vinci, Tommaso | |
dc.creator.author | Ravasio, Alessandra | |
cristin.unitcode | 185,15,22,40 | |
cristin.unitname | Senter for Jordens utvikling og dynamikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1863177 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geophysical Research Letters&rft.volume=47&rft.spage=&rft.date=2020 | |
dc.identifier.jtitle | Geophysical Research Letters | |
dc.identifier.volume | 47 | |
dc.identifier.issue | 15 | |
dc.identifier.doi | https://doi.org/10.1029/2020GL088887 | |
dc.identifier.urn | URN:NBN:no-85040 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0094-8276 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/82109/1/2020GL088887.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | e2020GL088887 | |