Geochemical features for spring at Izu Peninsula

Kazuyoshi Asai; Kazumi Asai

Presentation information

[J] Poster

A (Atmospheric and Hydrospheric Sciences ) » A-HW Hydrology & Water Environment

[A-HW24] Isotope Hydrology 2019

Mon. May 27, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Masaya Yasuhara(Rissho Univ.), Kohei Kazahaya(Geological Survey of Japan, AIST), Shinji Ohsawa(Institute for Geothermal Sciences, Graduate School of Science, Kyoto University), Kazuyoshi Asai(Geo Science Laboratory)

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[AHW24-P01] Geochemical features for spring at Izu Peninsula

*Kazuyoshi Asai¹, Kazumi Asai¹ (1.Geo Science Laboratory)

Keywords:IZU Peninsula , spring, water chemistry, origin, residence time

IZU Peninsula is mainly composed of volcanic rocks and hot springs are located all over the area. This study focused on shallow groundwater with high circulation rate. Spring water was collected from 18 site and its dissolved ion, stable isotopes, CFCs and SF6 were determined. Based on the analysis results, we discuss charactaristics of water chemistry, origin and residence time.