Minerals Depletion

In the mid-1970s I taught an energy course at VPI&SU. I became interested in how minerals depletion was estimated and decided that I could do it better than had been done.

I used the least-squares-fit program of my colleague, Dr. Richard A. Arndt, to fit production-rate data for most minerals mined in the United States and the world.

Three books were published of that work:

See Depletion Theory for a summary of the mathematics used in this research.

Most recent minerals-depletion work:

Minerals Depletion proportional to available fossil-fuels energy.

Triple Threats for the Human Future