Evaluation of sonic logs in the Mackenzie Basin indicates that a substantial volume of water could have been generated by late-stage shale compaction. This derivation of metal-rich formation water is compatible with mineralization features of the reefal carbonate-hosted Pb-Zn sulfide deposits of the Pine Point District. Expelled fluids migrated within linear conduits is suggested, a feature that could have regional exploration significance.--Modified journal abstract.

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