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Naslov:Identifying crystal nucleation mechanisms in a synthetic trachybasalt: a multimodal approach
Avtorji:ID Peres, Stefano (Avtor)
ID Griffiths, Thomas A. (Avtor)
ID Colle, Fabio (Avtor)
ID Lelarge, Stefano Iannini (Avtor)
ID Masotta, Matteo (Avtor)
ID Pontesilli, Alessio (Avtor)
ID Mancini, Lucia (Avtor)
ID Abart, Rainer (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://link.springer.com/article/10.1007/s00410-024-02161-w
 
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Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:To develop new criteria to distinguish different crystal nucleation mechanisms in silicate melts, we performed crystallization experiments using a synthetic hydrous (2 wt% H2O) trachybasalt and combined three-dimensional information from synchrotron X-ray computed microtomography with two-dimensional mapping of crystallographic orientation relationships (CORs) using electron backscatter diffraction. Crystallization experiments were performed at 400 MPa by cooling the melt from 1300 °C to resting temperatures of 1150 and 1100 °C and maintaining isothermal conditions for 30 min and 8 h. Three distinct titanomagnetite (Tmt) populations formed: (1) skeletal crystals, isolated or partially embedded in clinopyroxene (Cpx); (2) anhedral crystals, always attached to Cpx; (3) flattened needle-shaped crystals, embedded in Cpx. These morphologically different Tmt populations formed in response to one cooling event, with varying nucleation mechanisms and at different undercooling conditions. The clustered three-dimensional distribution of population 2 and 3 Tmt grains and the high proportion of Tmt-Cpx interfaces sharing CORs indicate that these Tmt grains heterogeneously nucleated on Cpx. The near-random three-dimensional distribution of (often isolated) population 1 Tmt grains, together with the low proportion of Tmt-Cpx interfaces sharing CORs, imply their isolated, possibly homogeneous nucleation, potentially followed by heterogeneous nucleation of Cpx on population 1 Tmt. Heterogeneous nucleation in slightly to moderately undercooled magmas should affect the sequence of crystallization as well as morphology and clustering of crystals, which may actively contribute to the variation of rheological parameters like viscosity. Finally, observed intra- and inter-sample variations in Tmt-Cpx COR frequencies indicate the potential for this parameter to record further petrological information.
Ključne besede:experimental petrology, nucleation mechanisms, X-ray microtomography, crystal clustering, heterogeneous nucleation
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:20.08.2024
Založnik:Springer
Leto izida:2024
Št. strani:str. 1-21
Številčenje:Vol. 179, article no. 84
PID:20.500.12556/DiRROS-21001 Novo okno
UDK:552
ISSN pri članku:1432-0967
DOI:10.1007/s00410-024-02161-w Novo okno
COBISS.SI-ID:218155267 Novo okno
Avtorske pravice:© The Author(s) 2024
Opomba:© The Author(s) 2024
Datum objave v DiRROS:16.12.2024
Število ogledov:222
Število prenosov:182
Metapodatki:XML DC-XML DC-RDF
:
PERES, Stefano, GRIFFITHS, Thomas A., COLLE, Fabio, LELARGE, Stefano Iannini, MASOTTA, Matteo, PONTESILLI, Alessio, MANCINI, Lucia in ABART, Rainer, 2024, Identifying crystal nucleation mechanisms in a synthetic trachybasalt: a multimodal approach. Contributions to mineralogy and petrology [na spletu]. 2024. Vol. 179, no. 84, p. 1–21. [Dostopano 21 april 2025]. DOI 10.1007/s00410-024-02161-w. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=21001
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Gradivo je del revije

Naslov:Contributions to mineralogy and petrology
Skrajšan naslov:Contrib. mineral. petrol.
Založnik:Springer
ISSN:1432-0967
COBISS.SI-ID:513649177 Novo okno

Gradivo je financirano iz projekta

Financer:FWF - Austrian Science Fund
Številka projekta:P33227

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:20.08.2024
Vezano na:Text and Data Mining valid from 2024-08-20 Version of Record valid from 2024-08-20

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:eksperimentalna petrologija, mehanizmi nukleacije, rentgenska mikrotomografija, kristalno združevanje v grozde, heterogena nukleacija


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