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Age of the "Satsop" and the Dalles Formations of Oregon and Washington

Buwalda, John P. and Moore, Bernard N. (1927) Age of the "Satsop" and the Dalles Formations of Oregon and Washington. Science, 66 (1706). p. 236. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20191009-133239982

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Abstract

Geologists have differed regarding the ages of the "Satsop" and the Dalles formations of the Columbia River Gorge region. Because of their bearing on the history of the Gorge and for other reasons their ages are important. During a brief investigation of these beds under the auspices of the Carnegie Institution of Washington, the writers secured fragmentary mammalian fossil remains from the Dalles formation representing not a Quaternary, but approximately an upper Miocene or lower Pliocene stage. This age determination is corroborated by the lithologic resemblance of the Dalles beds to the middle Neocene Ellensburg formation of central Washington, by the apparently similar relations of these two formations to the Columbia lavas, and by the induration of the Dalles beds, which is equal to that of lower or middle Neocene deposits of the west, but much greater than that of Quaternary formations.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1126/science.66.1706.236DOIArticle
Additional Information:© 1927 American Association for the Advancement of Science.
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Balch Graduate School of the Geological Sciences8
Issue or Number:1706
Record Number:CaltechAUTHORS:20191009-133239982
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20191009-133239982
Official Citation:AGE OF THE "SATSOP" AND THE DALLES FORMATIONS OF OREGON AND WASHINGTON. JOHN P. BUWALDA, BERNARD N. MOORE. SCIENCE 09 SEP 1927: 236. https://doi.org/10.1126/SCIENCE.66.1706.236
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99196
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Oct 2019 20:45
Last Modified:09 Oct 2019 20:45

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