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| DOI | 10.1002/GGGE.20223 | ||||
| Año | 2013 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
The Auckland Volcanic Field (AVF) is a young active monogenetic basaltic field, which contains approximate to 50 volcanoes scattered across the Auckland metropolitan area. Understanding the temporal, spatial, and chemical evolution of the AVF during the last c.a. 250 ka is crucial in order to forecast a future eruption. Recent studies have provided new age constraints and potential temporal sequences of the past eruptions within the AVF. We use this information to study how the spatial distribution of the volcanic centers evolves with time, and how the chemical composition of the erupted magmas evolves with time and space. We seek to develop a methodology which compares successive eruptions to describe the link between geochemical and spatiotemporal evolution of volcanic centers within a monogenetic volcanic field. This methodology is tested with the present day data of the AVF. The Poisson nearest neighbor analysis shows that the spatial behavior of the field has been constant overtime, with the spatial distribution of the volcanic centers fitting the Poisson model within the significance levels. The results of the meta-analysis show the existence of correlations between the chemical composition of the erupted magmas and distance, volume, and time. The apparent randomness of the spatiotemporal evolution of the volcanic centers observed at the surface is probably influenced by the activity of the source. The methodology developed in this study can be used to identify possible relationships between composition trends and volume, time and/or distance to the behavior of the source, for successive eruptions of the AVF.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Le Corvec, Nicolas | Hombre |
UNIV AUCKLAND - Nueva Zelanda
University of Auckland - Nueva Zelanda LPI - Estados Unidos The University of Auckland - Nueva Zelanda |
| 2 | Bebbington, Mark S. | Hombre |
Massey Univ - Nueva Zelanda
Massey University Manawatu - Nueva Zelanda Massey University - Nueva Zelanda |
| 3 | Lindsay, Jan M. | Hombre |
UNIV AUCKLAND - Nueva Zelanda
University of Auckland - Nueva Zelanda The University of Auckland - Nueva Zelanda |
| 4 | McGee, Lucy Emma | Mujer |
UNIV AUCKLAND - Nueva Zelanda
Universidad de Chile - Chile University of Auckland - Nueva Zelanda The University of Auckland - Nueva Zelanda |
| Agradecimiento |
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| We would like to thank Marco Brenna, Bruce W. Hayward, Bernhard K. Sporli, and Julie V. Rowland for helpful comments on the manuscript. Georg Zellmer and two anonymous reviewers contributed many valuable suggestions for improving the content and structure of the original manuscript. This work was carried out as part of the DEVORA (Determining VOlcanic Risk in Auckland) project cofunded by the NZ Earthquake Commission (EQC) and the Auckland Council. |