Facies types of sedimentary iron ore deposits and their geochemical features: Communication 2. Problems of the geochemistry of phanerozoic iron ores

Abstract

Mineralogical-geochemical features of different facies types of sedimentary iron ore deposits are described. Particular attention is paid to deposits associated with the weathering crusts of ultramafic igneous rocks and to marine oolitic iron ores. The multistage formation of their geochemical properties is proved available geochemical models are considered.