Conclusions
Rhythmically banded ore textures at the Nanisivik Pb-Zn-Ag deposit are identical to those commonly referred to as diagenetic crystallization rhythmites or DCRs. The presence of such textures in a demonstrably epigenetic orebody indicates that their formation is not necessarily indicative of early diagenetic sulfide mineralization. Although the development of such textures may occur in near-surface and/or early diagenetic environments, their presence alone is not a compelling constraint on the timing of ore formation.
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Arne, D.C., Kissin, S.A. The significance of “diagenetic crystallization rhythmites” at the Nanisivik Pb-Zn-Ag deposit, Baffin Island, Canada. Mineral. Deposita 24, 230–232 (1989). https://doi.org/10.1007/BF00206447
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DOI: https://doi.org/10.1007/BF00206447