Mobility of Phosphorus during the Weathering of Volcanic Ashes |
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| Authors: | S B Felitsyn V Yu Kirianov |
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| Institution: | (1) Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, nab. Makarova 2, St. Petersburg, 199034, Russia;(2) Institute of Volcanic Geology and Geochemistry, Far East Division, Russian Academy of Sciences, bul'v. Piipa 9, Petropavlosk-Kamchatskii, 683006, Russia |
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| Abstract: | Data are presented on phosphorus mobility during the weathering of rhyolite–dacite tephra of the modern and ancient eruptions. Distal tephra cannot be considered a phosphorus source, since phosphorous has low mobility during weathering both in subaerial and subaqueous sedimentation conditions. However, volcanic ashes exert a fertilization effect, providing the supply of nutrient elements into the ecosystem of internal basins and coastal zones. |
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