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co2 in soil

Modern soils tend to average about 10 times that in the atmosphere.
(i.e. 30% CO2, rather than 3% in air).  so finding that in mesozoic
soils (as Caitlin Kiernan mentioned 9611.26) should not be

Bonnie A.B. Blackwell,                          bonn@qcvaxa.acc.qc.edu
Dept of Geology,                                off: (718) 997-3332
Queens College, City University of New York,    fax: (718) 997-3299
Dept of Earth \& Environmental Sciences,        fax: (718) 997-3349
The Graduate Center, CUNY,                      fax: (718) 997-3513
Flushing, NY 11367-1597                         messages: (718) 997-3300