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USGS · 70010829

Argon-40: Excess in submarine pillow basalts from Kilauea Volcano, Hawaii

G. Brent Dalrymple·J.G. Moore
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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 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.

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90° N90° S · 180° W ← longitude → 180° E
Source-reported bounding extent: 19.38168576897783° to 19.432939044191286° latitude; -155.31538163972465° to -155.25430005642218° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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G. Brent Dalrymple, J.G. Moore. 1968. Argon-40: Excess in submarine pillow basalts from Kilauea Volcano, Hawaii. https://doi.org/10.1126/science.161.3846.1132

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