Contact: Chris Chipello
christopher.chipello@mcgill.ca
514-398-4201
McGill University

Ore Sample (1 of 2)

Caption: One of the sulfide ore samples analyzed for the study. The bright area in the lower left, a "sulfide nodule," preserves isotopic evidence of the presence of microbes that fed on sulfate in the ancient ocean.

Credit: Mark. D. Hannington

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Related news release: Mining ancient ores for clues to early life