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Trace elements reconnaissance investigations in New Mexico and adjoining states in 1951

Trace Elements Memorandum 443

This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission
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Abstract

In the summer and fall of 1951, a reconnaissance search was made in New Mexico and adjacent states for uranium in coal and carbonaceous shale, chiefly of Mesozoic age, and black marine shale of Paleozoic age. Tertiary volcanic rocks, considered to be a possible source for uranium in the coal and associated rocks, were examined where the volcanic rocks were near coal-bearing strata. Uranium in possibly commercial amounts was found at La Ventana Mesa, Sandoval County, New Mexico. Slightly uranifeous coal and carbonaceous shale were found near San Ysidro, Sandoval County, and on Beautiful Mountain, San Juan County, all in New Mexico, and at Keams Canyon, Navajo County, and near Tuba City, Coconino County, in Arizona. Except for La Ventana deposit, none appeared to be of economic importance at the time this report was written, but additional reconnaissance investigations have been underway this field season, in the area where the deposits occur. Marine black shale of Sevonian age was examined in Otero and Socorro Counties, New Mexico and Gila County, Arizona. Mississippian black shale in Socorro County and Pennsylvanian black shale in Taos County, New Mexico were also tested. Equivalent uranium content of samples of these shales did not exceed 0.004 percent. Rhyolitic tuff from the Mount Taylor region is slightly radioactive as is the Bandelier tuff in the Nacimiento region and in the Jemez Plateau. Volcanic rocks in plugs and dikes in the northern Chuska Mountains and to the north in New Mexico as well as in northeastern Arizona and southeastern Utah are slightly radioactive. Coal and carbonaceous rocks in the vicinity of these and similar intrusions are being examined.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Trace elements reconnaissance investigations in New Mexico and adjoining states in 1951
Series title:
Trace Elements Memorandum
Series number:
443
Year Published:
1952
Language:
English
Publisher:
U.S. Geological Survey
Description:
Report: 20 p.; 4 Plates: 15.57 x 24.59 inches or smaller
Number of Pages:
22
Country:
United States
State:
Arizona;New Mexico
County:
Apache County;Coconino County;Navajo Counity;San Juan County
Other Geospatial:
Beautiful Mountain;Black Mesa
Additional Online Files(Y/N):
Y