title: Argon-40: excess in submarine pillow basalts from kilauea volcano, hawaii.
abstract: 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 argon40 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.
authors.forename: G B
authors.initials: GB
authors.lastname: Dalrymple
authors.forename: J G
authors.initials: JG
authors.lastname: Moore