Application of sequential fragmentation/transport to deposits of 1723 and 1963-65 eruptions of Irazú volcano, Costa Rica. Positive dispersion case and fractal model
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| Auteurs: | , |
|---|---|
| Format: | artículo original |
| Statut: | Versión publicada |
| Date de publication: | 2011 |
| Description: | The Sequential fragmentation/transport theory (SFT), applied to grain size analysis of the deposits from the 1723 and 1963-65 Irazú volcano eruptions, showed an appreciable number of cases with positive dispersion, usually associated to particle aggregation. A new fractal dimension is proposed here to explain them as a secondary fragmenta- tion process. This leads to a new fractal model of volcanic eruptive process, where the Hurst Coefficient and the power law exponent are included. Dispersion values near zero suggest the existence of lava pools. Results deduced from the model agree well with field observations. |
| Pays: | Portal de Revistas UCR |
| Institution: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Langue: | Español |
| OAI Identifier: | oai:archivo.portal.ucr.ac.cr:article/12237 |
| Accès en ligne: | https://archivo.revistas.ucr.ac.cr/index.php/geologica/article/view/12237 |
| Mots-clés: | sequential fragmentation transport hurst coefficient power law exponent volcanic fractal model irazú volcano costa rica fragmentacion transporte secuencial coeficiente de hurst exponente de ley de potencias modelo fractal volcánico volcán irazú |