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The role of basalt replenishment in the generation of basaltic andesites of the ongoing activity at Arenal volcano,Costa Rica: evidence from clinopyroxene and spinel |
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| Authors: | Streck Martin J. Dungan Michael A. Malavassi E. Reagan Mark K. Bussy Francois |
| Affiliation: | 1.Department of Geology, Portland State University, Portland, OR 97207, USA ;2.Department of Mineralogy, University of Geneva, 1211, Geneva 4, Switzerland ;3.OVSICORI, Universidad Nacional, Heredia, Costa Rica ;4.Department of Geology, University of Iowa, Iowa City, IA 52242, USA ;5.Institute of Mineralogy and Geochemistry, University of Lausanne, 1015, Lausanne, Switzerland ; |
| Abstract: | Bulletin of Volcanology - The bulk composition of magma erupted from Volcán Arenal has remained nearly constant (SiO2 = 53.6–54.9&;nbsp;wt%; MgO = 5.0–4.5&;nbsp;wt%) during... |
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