Thirty-five samples were selected from diamond drill-hole cores that intersected the contact between the Virginia Formation and Partridge River Intrusion at the NorthMet, Mesaba, and Wetlegs deposits (Fig. 1 and Appendix A). Bedded Pyrrhotite Unit samples from the contact aureole come from boreholes AA-18 and A4-15. Xenoliths of the Bedded Pyrrhotite Unit, plus norites and gabbronorites, were collected from the NorthMet and Mesaba deposits (Fig. 1 and Appendix A). Data were combined with results from previous studies for a total database of 126
, A laser ablation inductively coupled plasma mass spectrometry study of the distribution of chalcophile elements among sulfide phases in sedimentary and magmatic rocks of the Duluth Complex, Minnesota, USA, Ore Geology Reviews (2017),
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