Journal Pre-proofs Petrology and geochemistry of ophiolitic ultramafic rocks and chromitites across the Eastern Desert of Egypt: Insights into the composition and nature of a Neoproterozoic mantle and implication for the evolution of SSZ system Rabea A.M. Ali, Iain K. Pitcairn, Ayman E. Maurice, Mokhles K. Azer, Bottros R. Bakhit, Mohamed G. Shahien PII: S0301-9268(19)30265-7 DOI: https://doi.org/10.1016/j.precamres.2019.105565 Reference: PRECAM 105565 To appear in: Precambrian Research Received Date: 1 May 2019 Revised Date: 21 November 2019 Accepted Date: 4 December 2019 Please cite this article as: R.A.M. Ali, I.K. Pitcairn, A.E. Maurice, M.K. Azer, B.R. Bakhit, M.G. Shahien, Petrology and geochemistry of ophiolitic ultramafic rocks and chromitites across the Eastern Desert of Egypt: Insights into the composition and nature of a Neoproterozoic mantle and implication for the evolution of SSZ system, Precambrian Research (2019), doi: https://doi.org/10.1016/j.precamres.2019.105565 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. © 2019 Published by Elsevier B.V.