Environmental stability of the earth's surface--Chemical consideration

Details Environmental stability of the earth's surface--Chemical consideration Environmental stability of the earth's surface--Chemical consideration

Jul 1966

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1966gecoa..30..663w&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 30, Issue 7, pp.663-679

Computer Science

1

Scientific paper

The persistence of life on earth indicates that the variations of the environmental variables have been limited within the life boundary. Stability could result from luck, the large size of the oceanic reservoir, chemical equilibria and negative feedback. Because of the complexity of sea water and because of the relatively low surface temperature, equilibria between sea water and solid phases are not adequate to explain the stability of the environment. Rather feedback relations among the hydrosphere, lithosphere and biosphere must be operating. The pH stability of the ocean can be investigated using a total CO 2 -alkalinity diagram. An analysis of a simple two-box model atmosphere--surface ocean--deep ocean shows that the ocean-atmosphere interaction helps to stabilize the environment. Before a more detailed analysis extending further into the past can be made, the functions that relate the rates of the various processes to the environmental variables must be known.

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