• Geology
• Published 1985
• DOI:10.1346/ccmn.1985.0330208

Zeolites in Eocene Basaltic Pillow Lavas of the Siletz River Volcanics, Central Coast Range, Oregon

@article{Keith1985ZeolitesIE,
  title={Zeolites in Eocene Basaltic Pillow Lavas of the Siletz River Volcanics, Central Coast Range, Oregon},
  author={Terry E. C. Keith and Lloyd W. Staples},
  journal={Clays and Clay Minerals},
  year={1985},
  volume={33},
  pages={135-144}
}

• Terry E. C. Keith, Lloyd W. Staples

Zeolites and associated minerals occur in a tholeiitic basaltic pillow lava sequence that makes up part of the Eocene Siletz River Volcanics in the central Coast Range, Oregon. Regional zoning of zeolite assemblages is not apparent; the zeolites formed in joints, fractures, and interstices, although most occur in central cavities of basalt pillows. The zeolites and associated minerals identified, in general order of paragenetic sequence, are smectite, pyrite, calcite (small spheres), thomsonite… CONTINUE READING

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