Résumé
Des basaltes récents du Costa Rica sont de nature alcaline, comme le montrent trois analyses chimiques nouvelles. La présence de ces laves au Costa Rica étend le domaine du volcanisme alcalin, déja signalé au Nicaragua et au Honduras.
Abstract
Some cenozoic basalts in Costa Rica are of alkaline nature as shown by three new chemical analyses. Presence of these lavas in Costa Rica extends the domain of alkaline volcanism, already reported in Nicaragua and Honduras.
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Bibliographie
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Tournon, J. Présence de Basaltes Alcalins Récents au Costa Rica (Amerique Centrale). Bull Volcanol 36, 140–147 (1972). https://doi.org/10.1007/BF02596986
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DOI: https://doi.org/10.1007/BF02596986