作者: A. K. Baksi , N. D. Watkins
DOI: 10.1126/SCIENCE.180.4085.493
关键词:
摘要: New potassium-argon age data from the Columbia Plateau suggest a basalt production rate of 108 cubic meters per year during middle Miocene volcanic episode. This is two to three times in some oceanic islands, and about four six spreading mid-oceanic ridge systems.