In this issue:
- Introduction to the second uranium issue and some suggestions for prospecting
- Early Proterozoic tectonics of the central Rocky Mountains, North America
- Stratigraphy of the Phantom Lake Metamorphic Suite and Deep Lake Group and a review of the Precambrian tectonic history of the Medicine Bow Mountains
- Stratigraphy and structure of the lower part of the Precambrian Libby Creek Group, central Medicine Bow Mountains, Wyoming
- A review of the stratigraphy and uranium potential of early Proterozoic (Precambrian X) metasediments in the Sierra Madre, Wyoming
- Uranium, thorium, and gold in the lower Proterozoic(?) Estes Conglomerate, Nemo District, Lawrence County, South Dakota
- Uranium and thorium concentrations in Precambrian granites as indicators of a uranium province in central Wyoming
- Genesis of the Schwartzwalder uranium deposit, Jefferson County, Colorado
- Classification of uranium deposits
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