Journal Pre-proofs Mafic intrusions in the footwall of the Sudbury Igneous Complex: origin of the Sudbury impact melt sheet and its associated ore deposits Reid R. Keays, Peter C. Lightfoot PII: S0169-1368(19)30952-7 DOI: https://doi.org/10.1016/j.oregeorev.2020.103435 Reference: OREGEO 103435 To appear in: Ore Geology Reviews Received Date: 31 October 2019 Revised Date: 25 February 2020 Accepted Date: 28 February 2020 Please cite this article as: R.R. Keays, P.C. Lightfoot, Mafic intrusions in the footwall of the Sudbury Igneous Complex: origin of the Sudbury impact melt sheet and its associated ore deposits, Ore Geology Reviews (2020), doi: https://doi.org/10.1016/j.oregeorev.2020.103435 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier B.V.