On the geochemistry of volcanic gases and fluids from the Unzen volcano - ICDP-Unzen-Conduit-Drilling

• Antragsteller: Dr. Martin Zimmer
• Fachliche Zuordnung: Mineralogie, Petrologie und Geochemie
• Förderung: Förderung von 2002 bis 2005
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 5364204

Within the framework of the ICDP Unzen Drilling Project we plan to analyse, on a continuous basis, the gas phase dissolved in the drill mud. The Unzen-Conduit-Drilling which starts on a flank, encloses both the hydrothermal and magmatic fluid systems of the volcano in a continuous profile. Real-time gas analysis will provide essential data on the amount and penetration depth of meteoric water as well as on convection processes of deep ground water and the dynamics and intensity of the mixture with volcanic (magmatic) gases. The internal connections and geometry of the fumaroles can thus be quantified directly along the drilled depth profile. With the planned gas monitoring experiment and subsequent laboratory isotope studies we aim to explain in how far a correlation exists between the composition and amount of degassed magmatic fluids and the seismicity in the volcano as well as its eruptive behaviour.

• DFG-Verfahren: Infrastruktur-Schwerpunktprogramme
• Teilprojekt zu: SPP 1006: Bereich Infrastruktur - Internationales Kontinentales Bohrprogramm (ICDP)
• Beteiligte Person: Professor Dr. Jörg Erzinger