Heterogeneous nucleation as the predominant mode of crystallization in natural magmas: numerical model and implications for crystal-melt interaction

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10314954" target="_blank" >RIV/00216208:11310/15:10314954 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s00410-014-1103-6" target="_blank" >http://dx.doi.org/10.1007/s00410-014-1103-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00410-014-1103-6" target="_blank" >10.1007/s00410-014-1103-6</a>

Result language
angličtina
Original language name
Heterogeneous nucleation as the predominant mode of crystallization in natural magmas: numerical model and implications for crystal-melt interaction
Original language description
Crystallization of natural magmas is inherently a disequilibrium process, which involves nucleation and growth kinetics, melt-crystal mechanical interactions and subsolidus modifications, which are all recorded in the resulting rock texture. We use a newhigh-resolution three-dimensional numerical model to address the significance and consequences of homogeneous versus heterogeneous crystal nucleation in silicate magmas. With increasing amount of heterogeneous nuclei during crystallization, initially equigranular textures evolve to porphyritic, bimodal and spherulitic types. The corresponding crystal size distributions (CSDs) become concave-up curved, the clustering index progressively decreases, and the grain contact relationships record increased clustering. Concave-up curved CSDs previously interpreted as resulting from multistage crystallization, mixing of crystal populations, grain agglomeration, or size-dependent growth are now predicted, consistently with other size, spatial and
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Project
<a href="/en/project/GAP210%2F12%2F0986" target="_blank" >GAP210/12/0986: Thermodynamics and kinetics of mass transfer, crystallization and texture development in magmatic and hydrothermal systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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