Journal ArticleThe Shepherd Mountain iron ore deposit in Southeast Missouri, USA – An extension of the Pilot Knob magmatic-hydrothermal ore system: Evidence from iron oxide chemistryTunnell, Bolorchimeg N.; Locmelis, Marek; Seeger, Cheryl; Moroni, Marilena; Dare, Sarah; Mathur, Ryan; Sullivan, Brandon2022-02-0110323926Ore Geology Reviews141C1046330169-1368https://doi.org/10.1016/j.oregeorev.2021.1046331944552; 2503213National Science Foundation