Mineralogy and Geochemistry of Mafic-Ultramafic Assemblages and Associated Ore Deposits

Dear Colleagues,

Mafic–ultramafic assemblages are mainly classified into three groups according to their origin and emplacement in different tectonic settings: 1) Ophiolitic rocks representing remnants of the oceanic lithosphere (mantle and crust). 2) Alaskan-type ultramafic–mafic rocks that occur as concentrically zoned intrusions, representing the roots of Neoproterozoic island arcs. 3) Layered mafic–ultramafic intrusions related to late extensions or continental margin settings. This Special Issue aims to build a community of authors and readers to discuss the latest research and develop new ideas and research directions for mafic–ultramafic assemblages. This includes detailed mineralogy, petrology, and geochemistry of mafic–ultramafic assemblages and the use of these data to address the origin and significance of rocks that host economic ores, such as magnetite, titanomagnetite, ilmenite deposits, banded chromitites, podiform chromitited, sulphide deposits vanadium, cobalt, nickel, and platinum group minerals (PGM). Factors controlling these economic ore deposits are also discussed in this issue. This Special Issue aims to shed light on the petrogenesis and geodynamic evolution of mafic–ultramafic assemblages, understanding magmatic types and processes in the mantle, crust, and mantle–crust boundary. Papers discussing mantle processes (melting process, mantle metasomatism/heterogeneity, mantle upwelling/recycle, etc.) and the carbonization of the mantle (Rodingites and Listvenite) are welcome.

Prof. Dr. Mohamed Zaki Khedr
Guest Editor

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