MORI, Toshiya

Associate Professor
Geochemical Research Center

Office: Chem. East Bldg.-104
TEL: +81-3-5841-4649
FAX: +81-3-5841-4119

Research Field

Volcanology, Volcanic geochemistry

Current Research

Chemical compositions and/or flux of volcanic gases reflect conditions of magma activity or hydrothermal system beneath the volcano. Monitoring of volcanic gases is therefore an important research target to understand the conditions of volcanic acitivities. So far, my work has been focused on developing and establishing new techniques for monitoring volcanic gas. In developing a remote measurement technique for volcanic gas composition, our group pioneered remote measurement of multiple gas species in volcanic plume using infrared absorption spectroscopy.In collaboration with several Japanese research groups, we developped a compact UV spectrometer system to measure SO2 flux from volcanoes.We are recently developping a new instrumentto visualize SO2 distributions in the volcanic plumes.
The main target of our group is to understand the degassing processes in magma and the mechanism of eruption based on observational reseach works on volcanic gas emissions.

Representative Publications

1. T. Mori and M. Burton (2006) The SO2 camera: A simple, fast and cheap method for ground-based imaging of SO2 in volcanic plumes. Geophys. Res. Lett., 33, doi:10.1029/2006GL027916
2. T. Mori and M. Burton (2009) Quantification of the gas mass emitted during single explosions on Stromboli with the SO2 imaging camera. J. Volcanol. Geotherm. Res., 188, 395-400..
3. T. Mori, H. Shinohara, K. Kazahaya, J. Hirabayashi, T. Matsushima, T. Mori, M. Ohwada, M. Odai, H. Iino and M. Miyashita (2013) Time-averaged SO2 fluxes of subduction-zone volcanoes: Example of a 32-year exhaustive survey for Japanese volcanoes. Journal of Geophysical Research, 118, 1-13, doi:10.1002/jgrd.50591.