Argon-40: excess in submarine pillow basalts from Kilauea Volcano, Hawaii
Dalrymple GB and Moore JG. 1968. Argon-40: excess in submarine pillow basalts from Kilauea Volcano, Hawaii. Science. 161(3846):1132-1135
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.
- Type
- Journal Article
- Authors
- Dalrymple, G.; Moore, J.
- Units
- HAVO
- Keywords
- 40Ar/39Ar (Ar/Ar), Age Dating, Chemical Analysis, Cooling, Hawaii (Big Island), Kilauea Volcano, Lava Flow, Mechanism, Ocean Floor Geology, Submarine