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dc.contributor.authorTsuchide, Masakazu
dc.date.accessioned2019-10-28T16:33:08Z
dc.date.available2019-10-28T16:33:08Z
dc.date.issued1998
dc.identifier.urihttp://hdl.handle.net/1834/15747
dc.description.abstractThe Hydrographic Department actively participates in the national programme for prediction of volcanic eruption since the beginning of this programme in 1973. This paper shows a review of the analytical results of thermal distribution and chemical compositions of several volcanic discolored waters observed and collected by the Hydrographic Department. Thermal distribution of discolored water by the airborne thermal infrared radiometer makes clear the complicated thermal distribution pattern around the spouting point of the Kaitoku Seamount and the Hukutoku-Oka-no-Ba submarine volcanoes. Relative temperature differences between the sea surface temperature and the volcanic discolor” ed water temperature are in harmony with the submarine volcanic activitites. Total Fe is decreasing and pH value is increasing according to the distance from the spouting point of volcanic discolored water. Triangular diagram on Fe-Al-Si and/ or (Fe+ Al)/Si from chemical analysis of volcanic discolor~ ed waters indicate the degree of submarine volcanic activities and make possible to compare about volcanic activities of submarine volcanoes in different time and/ or at different places.en_US
dc.language.isojaen_US
dc.relation.urihttps://www1.kaiho.mlit.go.jp/GIJUTSUKOKUSAI/KENKYU/report/article.html#rhr34en_US
dc.titleThermal Distribution and Chemical Compositions of Discolored Waters Derived from Submarine Volcanic Activitiesen_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue34en_US
dc.bibliographicCitation.titleReport of Hydrographic and Oceanographic Researchesen_US
dc.description.statusPublisheden_US
dc.format.pagerangepp. 39-64en_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:37Z


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