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- Path: sparky!uunet!ogicse!emory!gatech!udel!rochester!dietz
- From: dietz@cs.rochester.edu (Paul Dietz)
- Newsgroups: sci.chem
- Subject: Re: Gold - future Auto Catalyst
- Message-ID: <1992Nov17.154917.4790@cs.rochester.edu>
- Date: 17 Nov 92 15:49:17 GMT
- Article-I.D.: cs.1992Nov17.154917.4790
- References: <1992Nov17.011919.14080@ucsu.Colorado.EDU> <1992Nov17.045858.20410@cs.rochester.edu> <1992Nov17.152054.10043@ucsu.Colorado.EDU>
- Organization: Computer Science Department University of Rochester
- Lines: 35
-
- In article <1992Nov17.152054.10043@ucsu.Colorado.EDU> knapp@spot.Colorado.EDU (David Knapp) writes:
-
- >>There
- >>are effectively infinite supplies of both metals at concentrations
- > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- >>only a few times less than current ores.
- >
- > Can you expound on what you mean by "effectively infinite"? I mean, is it
- > infinite or isn't it? Can something be 'effectively limited' and still be
- > unlimited?
-
-
- "Effectively infinite" means: the available supplies will last
- longer than any reasonable planning horizon. For iron and aluminum,
- this is because the ores being mined today are only a few times
- richer than your average piece of the earth's crust.
-
- More specifically, aluminum is today obtained from bauxite. However,
- it can also be obtained from kaolinite -- clay -- which is available
- in enormous quantities. Ultimately, it can be derived from feldspar,
- if we ever run out of clay.
-
- Thousands of years of iron are available in taconites. Should those
- run out, basalt is about 8% iron. There are millions of cubic miles
- of basalt available.
-
-
- > You've commented on mny things I didn't even mention so you might be
- > thinking of a different post.
-
- I made the apparently incorrect assumption that people reading
- my posting would engage their brains while doing so.
-
- Paul F. Dietz
- dietz@cs.rochester.edu
-