Introduction • Precambrian to Modern manganese mineralization: Changes in one type and depositional environment • Review • Genetic diversity of manganese deposition in the terrestrial geological record Supriya Roy • Precambrian deposits • Fractionation of manganese from iron in Arhaean and Proterozoic sedimentary ores • Lithological and geochemical evidence of Fe and Mn pathways during deposition of lower Proterozoic banded Iron Formation in the Krivoy Rog Basin (Ukraine) • Insight into the enigma of Neoproterozoic manganese and iron formations from the perspective of supercontinental break-up and glaciation • Mineralogy and geochemistry of Archaean greenstone belt-hosted Mn formations and deposits of the Dharwar Craton: Redox potential of photo-oceans • Deep-water manganese deposits in the middle to late Proterozoic Penganga Group of the Pranhita-Godavari valley, South India • Manganese ores of the Ghoriajhor - Monmunda area, Sundergarh District, Orissa, India: Geochemical evidence for a mixed Mn source • Cenozoic deposits • Iron and manganese oxide mineralization in the Pacific • Some controls on the geochemical variability of manganese nodules with particular reference to the tropical South Pacific • Growth history of manganese nodules and crusts of the Peru Basin • Distribution and composition of marine hydrogenetic and hydrothermal manganese deposits in the north-west Pacific • Geochemical constraints on the hydrothermal origin of ferromanganese encrustations from the Rodriguez Triple Junction, Indian Ocean • Environments of formation of ferromanganese concretions in the Baltic Sea: A critical review • Deception Island (Antarctica): A new target for exploration of Fe-Mn mineralization? • Terrestrial hot-spring Co-rich Mn mineralization in the Pliocene-Quaternary Calatrava Region (central Spain) • An EPMA and SEM study of the Mn-oxide mineralization of Kato Nevrokopi, Macedonia, northern Greece: Controls on formation of the Mn4+ oxides • recent manganese oxide deposits in Hokkaido, Japan • Geochemistry and mineralogy • Formation of solid phases of manganese in oxygenated aquatic environments • Geochemistry of manganese oxides: metal adsorption in freshwater and marine environments • P-T-X relationships during metamorphism of manganese-rich sediments: Current status and future studies • Zincian rancieite from the Kato Nevrokopi manganese deposits, Macedonia, northern Greece • The determination of the valancy of manganese in the mineralogical and environmental samples by X-ray emission spectroscopy