6 Result(s)
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Article
An empirical relation between velocity, mass discharge rate and vent area for normal through paroxysmal eruptions at Stromboli
Based on published and new data for explosive events at Stromboli (Italy), we propose an empirical relation that links mass discharge rate (MDR) and at-vent gas jet velocity (Gv). We use 65 simultaneous measureme...
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Article
How to turn off a lava lake? A petrological investigation of the 2018 intra-caldera and submarine eruptions of Ambrym volcano
In December 2018, an unusually large intra- and extra-caldera eruption took place at Ambrym volcano (Vanuatu). The eruption drained the volcano’s five active lava lakes and terminated, at least momentarily, th...
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Article
Open AccessContrasting partition behavior of F and Cl during hydrous mantle melting: implications for Cl/F signature in arc magmas
We present the results of five experiments on F and Cl partitioning during hydrous mantle melting under conditions relevant to subduction zone magmatism (1.2–2.5 GPa, 1,180°C–1,430°C). For each experiment, we ...
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Article
Open AccessVolatile (F and Cl) concentrations in Iwate olivine-hosted melt inclusions indicating low-temperature subduction
Investigation of olivine-hosted melt inclusions provides information about the abundance of volatile elements that are often lost during subaerial eruptions of lavas. We have measured the abundances of H2O, CO2, ...
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Article
Open AccessFTIR and Raman spectroscopy characterization of fluorine-bearing titanian clinohumite in antigorite serpentinite and chlorite harzburgite
Titanian clinohumite is an accessory phase found in peridotites, and it can be a key repository of volatile and other trace elements in sub-arc mantle. To characterize spectroscopic variations due to volatile ...
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Article
Simulating bubble number density of rhyolitic pumices from Plinian eruptions: constraints from fast decompression experiments
Decompression experiments of a crystal-free rhyolitic liquid with ≈ 6.6 wt. % H2O were carried out at a pressure range from 250 MPa to 30–75 MPa in order to characterize effects of magma ascent rate and temperatu...
