The evolution of fluid flow systems prior to, during, and post MVT mineralization in the Givetian-Frasnian carbonates of the Emanuel Range, Western Australia

Abstract

The Emanuel Range is part of the extensive Devonian Reef complex, which overlies the Lennard Shelf, a section of shallow basement at the northern end of the Canning Basin in Western Australia. The reef complexes formed in an extensional tectonic environment and host numerous Mississippi Valley-type (MVT) Zn-Pb accumulations. The distribution, relative timing, and origin of calcite, dolomite, and MVT sulphide generations in the southeastern Emanuel Range indicate that the fluid flow systems operating during Middle Devonian to Middle Carboniferous burial changed significantly through time. The topographic flow of meteoric water from north to south, driven through alluvial fans shed from the hi..