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The water‐column chemical signature after the 1998 Eruption of Axial Volcano
Author(s) -
Resing Joseph A.,
Feely Richard A.,
Massoth Gary J.,
Baker Edward T.
Publication year - 1999
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl002350
Subject(s) - volcano , water column , seawater , hydrothermal circulation , geology , mineralogy , particulates , sulfate , attenuation , geochemistry , seismology , chemistry , oceanography , physics , organic chemistry , optics
The eruption of Axial Volcano in January 1998 produced extensive plumes in the overlying water column with large anomalies in Fe, Mn, pH, light attenuation, and temperature. A strong correlation between total iron and light attenuation (dc) suggests a low abundance of particulate sulfur (PS) in the plumes. Because total carbon dioxide (ΣCO 2 ) samples were not collected, high‐precision pH measurements were used to estimate maximum CO 2 anomalies (ΔCO 2 ) which, when compared to the other physical and chemical data, suggest that the fluids being vented 3 weeks after eruption were formed by the interaction between an intruded dike and a mixture of interstitial seawater and mature hydrothermal fluids.