Quartz and Magnetite: Oxygen-18-Oxygen-16 Fractionation in Metamorphosed Biwabik Iron Formation
- 29 July 1966
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 153 (3735), 528-529
- https://doi.org/10.1126/science.153.3735.528
Abstract
Oxygen-18-oxygen-16 fractionation of coexisting quartz and magnetite from the Biwabik iron formation varies as a function of distance of the sample from an intrusive contact. This isotope fractionation is related to observed mineralogic variations and compared with a theoretical heat-flow model.Keywords
This publication has 4 references indexed in Scilit:
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- The use of bromine pentafluoride in the extraction of oxygen from oxides and silicates for isotopic analysisGeochimica et Cosmochimica Acta, 1963
- The temperature in the neighborhood of a cooling intrusive sheetAmerican Journal of Science, 1957
- Improvements in Mass Spectrometers for the Measurement of Small Differences in Isotope Abundance RatiosReview of Scientific Instruments, 1950