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Excess nitrogen in selected thermal and mineral springs of the Cascade Range in northern California, Oregon, and Washington: Sedimentary or volcanic in origin?

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Excess nitrogen in selected thermal and mineral springs of the Cascade Range in northern California, Oregon, and Washington: Sedimentary or volcanic in origin?; 2003; Article; Journal; Journal of Volcanology and Geothermal Research; Mariner, R. H.; Evans, W. C.; Presser, T. S.; White, L. D.

Summary

Anomalous N2/Ar values occur in many thermal springs and mineral springs, some volcanic fumaroles, and at least one acid-sulfate spring of the Cascade Range. Our data show that N2/Ar values are as high as 300 in gas from some of the hot springs, as high as 1650 in gas from some of the mineral springs, and as high as 2400 in gas from the acid-sulfate spring on Mt. Shasta. In contrast, gas discharging from hot springs that contain nitrogen and argon solely of atmospheric origin typically exhibits N2/Ar values of 40–80, depending on the spring temperature. If the excess nitrogen in the thermal and mineral springs is of sedimentary origin then the geothermal potential of the area must be small, but if the nitrogen is of volcanic origin [...]

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Type Scheme Key
local-index unknown 70025881
local-pk unknown 70025881
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1016/S0377-0273(02)00414-6
series unknown Journal of Volcanology and Geothermal Research

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journalJournal of Volcanology and Geothermal Research
parts
typevolume
value121
typeissue
value1-2
languageEnglish
citationTypeArticle

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