Deposit: Radioactivity in a claystone lens 3 ft thick and 400 ft long. Discovery year: early 1950's

Deposit type: Sandstone U

Geology: Anomalous radioactivity is seen in an irregular claystone lens 0-3 ft thick and 400 ft long close to the base of the upper sandstone member, a grab sample pf carbonaceous claystone assay .004% eu3o8.

Rock formation(s): Chinle

Ore(s): Carbonaceous Material

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Uranium

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Sandstone

List of minerals for each chemical element

Other Databases

Link to USGS MRDS:	10014938

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Mazatzal DomainDomain
Mazatzal TerraneVolcanic Arc

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Finch, W.I., (1972), New Mexico Geological Society Field Conference Guidebook 23

Quick NavTop Commodities Rock Types Other Databases Other Regions References

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 6, 2026 03:38:58 Page updated: July 25, 2025 19:11:23

Go to top of page

Santa Rosa Railroad Cut, Santa Rosa area, Guadalupe County, New Mexico, USAiRegional Level TypesSanta Rosa Railroad CutProspect Santa Rosa areaArea Guadalupe CountyCounty New MexicoState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }