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Magma evolution at mount vulture (Southern Italy)

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Abstract

The Vulture complex is made up of foiditic, tephritic, phonolitic-trachytic and phonolitic products.

New rock analyses have been performed in order to ascertain whether the various rock types derive from a unique parental magma and, if so, to define its nature.

The data presented support that the Vulture suite originated from a foiditic melt which had differentiated at low pressures. The main process determining the foidite → → tephrite → phonolitic trachyte evolution seems to be the crystal fractionation of mainly clinopyroxenes, and opaques, with the contribution of plagioclases and haüyne too in the tephrite → trachyte evolution. Additionary role must have been played by a mixing of melts at different evolution stages occurred in a shallow seated magma chamber.

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De Fino, M., La Volpe, L. & Piccarreta, G. Magma evolution at mount vulture (Southern Italy). Bull Volcanol 45, 115–126 (1982). https://doi.org/10.1007/BF02600428

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