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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!rutgers!rochester!rocksanne!news
- From: kirby@xerox.com (Mike Kirby)
- Newsgroups: sci.space
- Subject: Re: Justification for the Space Program
- Message-ID: <1992Dec29.210129.8585@spectrum.xerox.com>
- Date: 29 Dec 92 21:01:29 GMT
- References: <1992Dec29.164827.13239@cs.rochester.edu>
- Sender: news@spectrum.xerox.com
- Reply-To: kirby@xerox.com
- Organization: Xerox Corporation, Webster NY
- Lines: 43
-
- In article 13239@cs.rochester.edu, dietz@cs.rochester.edu (Paul Dietz) writes:
- >In article <JMC.92Dec28192905@SAIL.Stanford.EDU> jmc@cs.Stanford.EDU writes:
- >
- >> Let me add to the previous post the estimate that the total amount of
- >> matter humanity has processed in its history is less than 10^12 tons.
- >
- >Some interesting facts:
- >
- >Estimated mass of manganese nodules on the ocean floors: ~ 10^12 tons.
- >
- >Average concentration of metals in nodules (percent)
- >
- > Element World Average Pacific Clarion-Clipperton Zone
- > --------------------------------------------------------------
- > Mn 18.6 25.4
- > Fe 12.47 6.66
- > Ni .66 1.27
- > Cu .45 (not listed, > .45)
- > Co .27 1.02
- >
- >
- >World-wide, nodules are estimated to contain billions of tons of
- >copper and nickel, and enough manganese to supply current mine demand
- >for that element for roughly 10,000 years. Additional sources of
- >metals (such as copper and cobalt) are available as crusts on the sea
- >floor, and in massive sulfides deposited at mid-ocean ridges and then
- >carried away by plate motion.
- >
- > Paul F. Dietz
- > dietz@cs.rochester.edu
-
-
- This is great except that companies are limited to mining only nodules that
- occur withing their territorial waters. All other nodules are considered
- "property of the earth" and are to be shared by all nations equally. Needless
- to say this removes much of the profit motive for sea bed mining.
-
- There is a U.N. Treaty that covers undersea resources. (with the possible exception
- of oil). Does anyone know what the treaty precisely says?
-
- Mike Kirby
- Xerox Corp
- E-mail: kirby.roch803@xerox.com
-