(STRA42) Proterozoic Gunflint Chert contains cyanobacteria 1.9 BY old, Kakabek Falls, Ontario, Canada photo

Doug Sherman | all galleries >> Geology >> Stratigraphy > (STRA42) Proterozoic Gunflint Chert contains cyanobacteria 1.9 BY old, Kakabek Falls, Ontario, Canada

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09-MAR-2008

(STRA42) Proterozoic Gunflint Chert contains cyanobacteria 1.9 BY old, Kakabek Falls, Ontario, Canada

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