Submarine pillow basalts from Kilauea Volcano contain excess radiogenic argon-40 and give anomalously high potassium-argon ages. Glassy rims of pillows show a systematic increase in radiogenic argon-40 with depth, and a pillow from a depth of 2590 meters shows a decrease in radiogenic argon-40 inward from the pillow rim. The data indicate that the amount of excess radiogenic argon-40 is a direct function of both hydrostatic pressure and rate of cooling, and that many submarine basalts are not suitable for potassium-argon dating.
Additional publication details
|Publication Subtype||Journal Article|
|Title||Argon-40: Excess in submarine pillow basalts from Kilauea Volcano, Hawaii|
|Contributing office(s)||Volcano Science Center|
|Other Geospatial||Kilauea Volcano|
|Google Analytic Metrics||Metrics page|