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- From: bwilliam@oyster.smcm.edu (Bill Williams)
- Newsgroups: sci.environment
- Subject: Re: Another ozone question
- Message-ID: <18183@umd5.umd.edu>
- Date: 27 Jan 93 15:43:03 GMT
- References: <1993Jan27.015316.13546@cs.rochester.edu>
- Sender: news@umd5.umd.edu
- Organization: St. Mary's College of Maryland
- Lines: 16
- X-UserAgent: Nuntius v1.1.1d17
- X-XXMessage-ID: <A78C18769E0201D2@williams.smcm.edu>
- X-XXDate: Wed, 27 Jan 93 15:46:14 GMT
-
- In article <1993Jan27.015316.13546@cs.rochester.edu> Paul Dietz,
- dietz@cs.rochester.edu writes:
- >But is this true? The characteristic time for the oxygen in the
- >atmosphere to be regenerated (by burial of organic matter in seafloor
- >sediments) is currently a few million years. After the dissolved
- >reduced metals in the ocean had been oxidized, why couldn't the oxygen
- >content of the atmosphere increase on a similar timescale?
-
- Wouldn't it depend on the global rate of photosynthesis, arguably much
- lower during the early
- evolution of photosynthetic organisms?
- ___________________________________
- William E. Williams, bwilliam@oyster.smcm.edu
- Divison of Natural Sciences and Mathematics
- St. Mary's College of Maryland
- St. Mary's City, MD 20686
-