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Stromatolite: An organosedimentary structure produced by sediment trapping, binding, and/or precipitation as a result of the growth and metabolic activity of microorganisms. (Definition from Jackson, J.A., ed., 1997, Glossary of geology [4th ed.]: Alexandria, Va., American Geological Institute, 769 p.)

 

 

 

 

 

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Last modified September 12, 2008 .