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Oxygen isotopic determinations of sequentially erupted plagioclases in the 1974 magma of Fuego Volcano, Guatemala

Bulletin Volcanologique volume 43, pages 191–194 (1980)Cite this article

Abstract

Plagioclases in the 1974 high-Al basalt from Fuego Volcano have δO18 values of +6.0 to +8.5 per mil. Meteoric water cannot have played a significant role in Fuego’s magma. Large, weakly zone clear phenocrysts had δO18 values in the accepted mantle range, while patchyzoned and oscillatory-zoned plagioclases inferred to have formed later and shallower levels have slightly heavier oxygen isotopic ratios.

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Author information

Author notes

  1. L. G. Woodruff

    Present address: University of Chicago, 60637, Chicago, IL

Authors and Affiliations

  1. Michigan Technological University, 49931, Houghton, MI, USA

    W. I. Rose Jr.

  2. U. S. Geological Survey, 80225, Denver, CO, USA

    I. Friedman

  3. Michigan Technological Univ., 49931, Houghton, MI, USA

    L. G. Woodruff

Authors
  1. W. I. Rose Jr.
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  2. I. Friedman
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  3. L. G. Woodruff
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Rose, W.I., Friedman, I. & Woodruff, L.G. Oxygen isotopic determinations of sequentially erupted plagioclases in the 1974 magma of Fuego Volcano, Guatemala. Bull Volcanol 43, 191–194 (1980). https://doi.org/10.1007/BF02597620

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  • DOI: https://doi.org/10.1007/BF02597620

Keywords

  • Tephra
  • Meteoric Water
  • Oxygen Isotopic Ratio
  • Large Phenocryst
  • Tephra Sample

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