Geology and Uranium Deposits of Monument Valley, San Juan County, Utah (open access)

Geology and Uranium Deposits of Monument Valley, San Juan County, Utah

From introduction: This report contains the results of a detailed geological and uranium deposits study made of the Monument Valley.
Date: March 1957
Creator: Lewis, Richard Quintin, Sr. & Trimble, Donald E.
System: The UNT Digital Library
Electrical Properties of Sandstones of the Morrison Formation (open access)

Electrical Properties of Sandstones of the Morrison Formation

The following report covers the study of electrical properties of the Morrison formation in the Uravan mineral belt of the Colorado Plateau to determine if there are anomalous variations in these properties in and near zones of uranium-vanadium minerals which might serve as a target for geophysical prospecting.
Date: March 1957
Creator: Keller, George V.
System: The UNT Digital Library
Lead-Alpha Age Determinations of Granitic Rocks from Alaska (open access)

Lead-Alpha Age Determinations of Granitic Rocks from Alaska

Abstract: "Lead-alpha activity age determinations were made on zircon from seven granitic rocks of central and southeastern Alaska. The results of the age determinations indicate two periods of igneous intrusion, one about 95 million years ago, during the Cretaceous period, and another about 53 million years ago, during the early part of the Tertiary. The individual ages determined on zircon from 2 rocks from southeastern Alaska and 1 from east-central Alaska gave results of 90, 100, and 96 million years; those determined on 4 rocks from central Alaska gave results of 47, 56, 58, and 51 million years."
Date: March 1957
Creator: Matzo, J. J.; Jaffe, H. W. & Waring, C. L.
System: The UNT Digital Library