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Showing 1 to 5 of 5 for “"Settore GEO/08 - Geochimica e Vulcanologia"”.

  1. MULTISCALE GEOCHEMICAL STUDY OF THE CORNO ALTO COMPLEX (ADAMELLO BATHOLITH)

    … extent in Sr (Ba + Sr ≈ 1100-1900 ppm). Other geochemical features include a moderately-to-strong enrichment in LREE over HREE (LaN/YbN > 20) and Y (Sr/Y > 40). U-Pb geochronology on zircon shows an east-west trend of decreasing ages in the intrusive complex, with three main recurring age …

    milano Repository record for MULTISCALE GEOCHEMICAL STUDY OF THE CORNO ALTO COMPLEX (ADAMELLO BATHOLITH) (opens in a new tab)

  2. Dynamics of ash eruptions at Vesuvius

    In the recent years, continuous ash emission activity, related to mid-low intensity, long lasting eruptions, has been increasingly described to occur at different volcanoes worldwide. Focusing on this type of deposits, a retrospective analysis of the stratigraphic successions at Vesuvius revealed …

    cagliari Repository record for Dynamics of ash eruptions at Vesuvius (opens in a new tab)

  3. LITHIUM ENRICHMENT IN ANATECTIC PEGMATITES: NEW INSIGHTS FROM THE THERMOMETAMORPHIC AUREOLE OF THE ADAMELLO BATHOLITH

    … helped to outline the differences in the geochemical signature between pluton-derived and metapelite-derived pegmaties. The Ti-in-zircon geothermometer confirms that anatectic pegmatites crystallized at the peak metamorphic temperature calculated through phase equilibria modelling. Once …

    milano Repository record for LITHIUM ENRICHMENT IN ANATECTIC PEGMATITES: NEW INSIGHTS FROM THE THERMOMETAMORPHIC AUREOLE OF THE ADAMELLO BATHOLITH (opens in a new tab)