Evolution of the Vico lavas,Roman volcanic region,Italy |
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| Authors: | A Cundari P P Mattias |
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| Institution: | 1. School of Geology, University of Melbourne, 3052, Parkville, Victoria, Australia
2. Istituto di Geologia Applicata, Facoltà d’Ingegneria, Università di Roma, Via Eudossiana 18, Roma, Italy
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| Abstract: | A petrochemical study of representative lavas from Vico, relative to their established stratigraphic succession, shows that the erupted magma was recurrent in composition. The predominant differentiation trend of the lava suite, illustrated by means of a principal component analysis (Le Maitre, 1968), leads to trachytic residual compositions which can be interpreted in terms of crystal fractionation processes under volcanic pressure regime. |
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