Earth's Top Elements
22-Sep-94 23:53:40
Sb: #146811-Earth's Top Elements
Fm: Bill Combs 73524,2651
To: Lanny R. Ream 73512,1163
>> Excuse me for being a little abrupt here, but if you are asking this >> type
of basic question, just where is the rest of your
>> data/information coming from? I can't help but wonder if you really
>> have the knowledge to cover the subject.
Fair question. I simplified my introductory comments at the start of this
thread. I am actually writting about what I call a "placeless" world in the
21st century. One section on one chapter deals with resources. A number of
journal articles have discussed a popularized debate between Paul Ehrlich (a
population doomsdayer) and Julian Simon (an optimist). Simon posits that
resources are unlimited, and I'm trying to understand the dynamics of that
hypothesis.
>> . . .up until about the 1950s gold could only be mined if there
>> was greater than around a half ounce per ton of rock (+ or –
>> depending on the deposit), but now deposits are being mined that >> have
less than 0.3 ounces per ton.
Good data, thanks.