Tabulation of uranium and thorium data on the Mesozoic-Cenozoic intrusive rocks of known chemical composition in Colorado

@inproceedings{Phair1975TabulationOU,
  title={Tabulation of uranium and thorium data on the Mesozoic-Cenozoic intrusive rocks of known chemical composition in Colorado},
  author={George Phair and Lillie B. Jenkins},
  year={1975}
}
Analytical data are made available on some 250 Mesozoic-Cenozoic intrusive rocks in Colorado for use in assessing the ''magmatic'' uranium potential of areas involved in the search for pitchblende deposits of classes I and II of Sims and Sheridan (U.S. Geol. Survey Bulletin 1159, 1964). These deposits appear to share a common magmatic origin with the uranium concentrated in the associated igneous rocks of closely related age. (LK) 
Geologic Setting and Petrochemistry of the Late Cretaceous Early Tertiary Intrusives in the Northern Front Range Mineral Belt, Colorado
Introduction Laboratory techniques used ....... Previous work Geologic setting Descriptions of stocks Apex and Buckeye Mountain stocks Long Gulch stock Bryan Mountain (Eldora) stock . . . Caribou
The Geology and Geochemistry of Cenozoic Topaz Rhyolites from the Western United States
All materials subject to this copyright and included in this volume may be photocopied for the noncommercial purpose of scientific or educational advancement. The geology and geochemistry of Cenozoic
URANIUM IN ALKALINE ROCKS
V%j( A O LBL-7029 fr A* n URANIUM IN ALKALINE ROCKS M. Murphy, H. Wottenberg,* B. Strisower, H. Bowman, S. Flexser, and I. Carmichael April 1978 Earth Sciences Division Lawrence Berkeley Laboratory
Varieties of granitic uranium deposits and favorable exploration areas in the eastern United States
Primary uranium deposits formed by granitic magmas can be classified on two bases: petrologic process of ore formation and tectonic occurrence. The processes of ore formation can be subdivided as
Contributions to mineralogy and petrology
High-silica topaz-bearing rhyolites of Cenozoic emplaced as domes, lava flows or shallow intrusions. They age are widely distributed across the western USA and may also contain Fe-Mn garnet, beryl,
Topaz rhyolites; distribution, origin, and significance for exploration
Topaz rhyolites are fluorine-rich alkaline silicic lavas and shallow intrusives that are characterized by the presence of topaz (Al 2 SiO 4 F 2 ) in gas cavities, commonly associated with Mn-Fe
A bibliography of stockwork molybdenite deposits and related topics (with an emphasis on the North American literature)
This bibliography of 1117 citations brings together references on stockwork molybdenite deposits and related topics in a format that can be sorted by topic and(or) geographic area. Each reference is
Uranium in Surface Waters and Sediments Affected by Historical Mining in the Denver West 1:100,000 Quadrangle, Colorado
..........................................................................................................................................................
POTENTIAL FOR ALKALINE IGNEOUS ROCK-RELATED GOLD DEPOSITS IN THE COLORADO PLATEAU LACCOLITHIC CENTERS
......................................................................................................................... 233 Introduction
...
...