Pg. 26-43. Rio Grande loess. [Name applied to lower part of Rio Grande series.] Sandy loess passing into clay, depth not known, but recognized everywhere. [Age is late Tertiary.]
[Notable exposures in environs of Albuquerque, central northern NM.]
Source: US geologic names lexicons (USGS Bull. 896, Rio Grande series entry p. 1816-1817).
The term "Rio Grande loess" was applied by Herrick to the portion of Rio Grande beds exposed underneath the Rio Grande gravels. The term does not seem applicable, for reason that these stratified silts and sands can hardly be called loess.
Source: US geologic names lexicon (USGS Bull. 896, p. 1817).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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