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Science 2 September 1966:
Vol. 153. no. 3740, pp. 1103 - 1105
DOI: 10.1126/science.153.3740.1103
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Articles
Oxygen Fugacities Directly Measured in Magmatic Gases
Motoaki Sato 1 and
Thomas L. Wright 2
1 U. S. Geological Survey, Washington, D.C.
2 U. S. Geological Survey, Hawaiian Volcano Observatory, Hawaii National Park, Hawaii
An electrochemical device was used to measure the fugacity of oxygen (foo2) in holes drilled through the crust of Makaopuhi lava lake, Kilauea Volcano, Hawaii. Results obtained within 6 months of the lake formation show that log foo2 normally varies linearly with the reciprocal of the absolute temperature, and that chemical changes occurring in the cooling tholeiitic basalt are reflected in the foo2 values measured in the holes.
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