Siletz River Volcanics
The Siletz River Volcanics, located in the Oregon Coast Range, United States, are a sequence of basaltic pillow lavas that make up part of Siletzia. The basaltic pillow lavas originally came from submarine volcanoes that existed during the Eocene.
The Paleocene to Eocene volcanics consist of volcanism flows and sills of tholeitic to alkalic basalts with associated tuff-breccia, siltstone and sandstone. The flows are vesiculated with zeolite filled amygdules.
- "Siletz River Volcanics and related rocks". USGS Mineral Resources On-Line Spatial Data. U.S. Geological Survey.
- Snavely, Parke D.; MacLeod, Norman S.; Wagner, Holly C. (June 1968). "Tholeiitic and alkalic basalts of the Eocene Siletz River Volcanics, Oregon Coast Range". American Journal of Science. 266 (6): 454–481. doi:10.2475/ajs.266.6.454.
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