Masters Theses


"The discovery of uranium in the Powder River Basin, Wyoming, by the U. S. Geological Survey in 1952 has lead to an extensive exploration program throughout the region by both private and governmental agencies. This report is a geological study of an area in the southwestern part of the basin.

Geological and radiometric mapping carried out as a part of this report indicated several areas of uranium occurrence. Some of these occurrences warrant tests by drilling.

Mineralogical and petrographic study has shown the principal uranium minerals to be carnotite and metatyuyamunite. The mineralization occurs in arkosic sandstones. Assays of the uranium deposits are usually below one percent U3O8, but occasional samples range up to 25 percent U3O8. The origin of the deposits is· attributed to percolating ground water.

An examination of mining and haulage costs and of ore prices has been made for the area. With this background, the geological study indicates a reasonable possibility that commercial ore is present within the area"--Abstract, page vi.


Morgan, Ray E., 1908-1997


Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geology


Three plates found in the back pocket are included here as supplementary material.


Missouri School of Mines and Metallurgy

Publication Date



vi, 91 pages

Note about bibliography

Includes bibliographical references (pages 85-90).

Geographic Coverage

Johnson County, Wyoming
Campbell County, Wyoming


© 1957 Gale E. Butterfield, All rights reserved.

Document Type

Thesis - Open Access

File Type




Subject Headings

Geology, Structural -- Wyoming -- Johnson County
Geology, Structural -- Wyoming -- Campbell County
Geological mapping
Uranium ores -- Geology

Thesis Number

T 1149

Print OCLC #


Electronic OCLC #


Butterfield_Gale_1957_Plate_1.tif (181361 kB)
Topography, Irvine Ranch Area, Johnson and Campbell Counties, Wyoming

Butterfield_Gale_1957_Plate_2.tif (188813 kB)
Geology and Structure, Irvine Ranch Area, Johnson and Campbell Counties, Wyoming

Butterfield_Gale_1957_Plate_3.tif (183568 kB)
Composite Stratigraphic Sections, Irvine Ranch Area, Johnson and Campbell Counties, Wyoming

Included in

Geology Commons


Thesis Location