New constraints on volcanic CO2 emissions from Java, Indonesia
Penulis/Author
Michael R.Burton (1); Manuel Queißer (2); Fabio Arzilli (3); Antonio Chiarugi (4); Ir. Gayatri Indah Marliyani, S.T., M.Sc., Ph.D., IPM (8); Prof. Dr. Ir. Ferian Anggara, S.T., M.Eng., IPM. (9)
Tanggal/Date
2018
Kata Kunci/Keyword
Abstrak/Abstract
We conducted a week-long airborne campaign to measure volcanic gas emissions from volcanoes on Java, using an innovative new in-situ gas sensing instrument. This instrument uses UV LEDs and tunable diode lasers to measure H2O, CO2, SO2, HCl and HF at frequencies up to 5 Hz. We measured a total of 15 volcanic plumes, and report here on the composition and flux of gases from these sources. We use these results together with a new thermodynamic model of volatile recycling in subduction zones to reveal the relationship between the down-welling carbonates in the slab subducting under Java and the gas emissions from Javanese volcanoes and mud volcanoes in the back-arc.
