With this review of requirements we now ask: What is the magnitude of the supplies? The uranium contents and fuel equivalents of the principal sources of uranium in the United States are shown in Table 6. The ores which are currently being produced, the so-called high-grade ores, are those of the type found principally in the Colorado Plateau. These are said to average about 0.35 percent uranium, or 3,500 grams per metric ton, which is equivalent to about 10,500 tons of coal or 45,000 barrels of oil per metric ton of ore. It will be informative to consider them on a somewhat longer time scale than that which we customarily employ. Attention is accordingly to the time span from 5000 years ago - the dawn of recorded history - to 5000 years in the future.
Managed & Built by I2M Consulting, LLC | © 2010-
