Search results for "Micro-thermometry"

showing 2 items of 2 documents

Micro-thermometry and minerochemical composition of ultramafic xenoliths and minerals from Mt. Vulture volcano (southern Italy)

2022

Here minerochemical composition and micro-thermometric data of ultramafic xenoliths (wehrlite) and loose xenocrysts (olivine and Cr-diopside) from the last melilitite-carbonatite explosive volcanic activity of Mt. Vulture volcano. In addition, some geometrical parameters of pelletal lapilli are reported.

mantle xenolithsMinerochemistry Mt. Vulture volcanoSettore GEO/07 - Petrologia E PetrografiaMicro-thermometrySettore GEO/08 - Geochimica E Vulcanologia
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New Inferences on Magma Dynamics in Melilitite-Carbonatite Volcanoes: The Case Study of Mt. Vulture (Southern Italy)

2022

This study provides the first micro-thermometric data of fluid inclusions (FIs) in mafic loose (disaggregated) xenocrysts and ultramafic xenoliths in explosive products of the melilitite-carbonatite Mt. Vulture volcano (southern Italy). Pure CO2 late stage FIs hosted in rock-forming minerals of wehrlite xenoliths and clinopyroxene xenocrysts were trapped at the local crust-mantle boundary (32 km). In contrast, trapping pressures within the loose olivine xenocrysts are from 3.2 to 4.5 kbar (8–13 km). Considering the ongoing degassing of mantle-derived CO2 rich gases, together with seismic evidences of the presence of low amount of melts at depth, and the tectonic control of the past volcanic…

micro-thermometryfluid inclusionsGeophysicsexplosive eruptionSettore GEO/07 - Petrologia E PetrografiaGeneral Earth and Planetary SciencesMt. Vulture volcanocarbonatite volcanoeSettore GEO/08 - Geochimica E Vulcanologia
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