(Jun. 3-8, 2025)
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| Following on from last year, Kiyohara-san continued to investigate the travertine found at Shirahone Hot Spring for her master thesis research. On the first day, she quantified hydrogen sulfide in the rain. | |
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| On the second day, we performed microelectrode measurements. The measurement of hydrogen sulfide also seemed to go well. | |
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| From the third day onwards, we investigated fossil travertine. In some areas, modern tufa has also formed. | |
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| On the last day, we investigated the travertine near Hirayu Hot Spring. We walked 4 km round trip along the river. It seemed that the formation of the travertine had already finished. | |
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