・Development of new geothermal resources in Toyama Prefecture

　　　　　　　・Geochemical analysis of hot springs, satellite image and field survey

Silica geothermometer of hot spring in the eastern part of Toyama (Sasaki et al., 2011)

Ground temperature at the eastern part of Toyama　(Satellite image)
　　
　・Investigation of formation mechanism and its prohibition of geothermal scales such as 　　　silica, calcite and clay minerals     

　　　

Silica fume synthesized from recovered
silica in geothermal fluid

　 　　　Measurement of scale deposition rate in laboratory and field experiments.

 ・Usage of heat energy of groundwater for indoor air conditioning and snow melting by
　　a heat pump

     　 Geochemical analysis of groundwater, satellite image and simulation of water
　　　　movement

            Cl⁻ concentration of groundwater at Takaoka-Nanto area in 2000 and 2011 (Iwatake et al., 2011)

Heat pump system

・"Georeactor":CO₂ sequestration and mineralization into geothermal ststem

　Laboratory and field experiments of CO₂ sequestration at the Ogachi hot dry rock (HDR) site with a temperature of 200°C were performed from 2005 to investigate the mineralization of CO₂ as carbonates through interaction with rocks (Georeactor − Ca extraction from rocks and carbonate fixation).

  　　　
　　　・Laboratory experiments of CO2-Water-Rock interaction

Laboratory experiments of CO2-Rock interaction (Batch and flow types)

  　　　・Field tests at Ogachi Hot Dry Rock site

・Geochemical approach for natural phenomena in hydrosphere and lithosphere

　　　・Chemical and isotope analyses of water and rock samples

  　　　
　　　　 ・XRD, EPMA, XRF analyses of rock and clay samples

・SATREPS-Cameroon project (CO₂-Rook interaction)

　　・CO₂ behavior in lake fluids

       　　　　　Measuring of CO₂ concentration by a new geochemical sampler

　　　　　　Water sampling by the Ozawa sampler       　CO₂ monitoring by the YY method

Measuring of precipitation rate of siderite (FeCO₃)

・Effects of rock(cement)-CO₂ interaction on chemical alteration process and 　
　　rock properties

       　　　Chemical composition, porosity, mechanical strength, permeability

　・Hydrology of groundwater and CO₂ supplying nearby Lake Nyos

　　　　　　　　　　　　　　　Daily meeting after dinner

IRGM (Nkolbisson), Yaounde. 

　　　　　　*See the SATREPS homepage in details

  　　　　　　　　　　 http://www3.u-toyama.ac.jp/satreps/