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Discovery may jump-start mine remediation efforts

posits.

The new work, says Banfield, helps fill in the picture: "We now know how it is possible to form pure zinc sulfide deposits (through the intervention of microbes), and to do this from dilute ground water solutions," she says. "These biofilms appear to be a major sink for ground water zinc."

Banfield's group is now investigating the details of the zinc sulfide crystals: "We hope that some of the newly discovered microstructural characteristics can be detected in ancient zinc sulfide deposits. This will be important for making the case for the biogenicity of these ores."


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Contact: Jillian Banfield
jill@geology.wisc.edu
617-3365-4878
University of Wisconsin-Madison
29-Nov-2000


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