Volcanic Production Rates: Comparison of Oceanic Ridges, Islands, and the Columbia Plateau Basalts

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Science  04 May 1973:
Vol. 180, Issue 4085, pp. 493-496
DOI: 10.1126/science.180.4085.493


New potassium-argon age data from the Columbia Plateau suggest a basalt production rate of 108 cubic meters per year during a middle Miocene volcanic episode. This is two to three times the production rate in some oceanic islands, and about four to six times the production rate in spreading mid-oceanic ridge systems.