Journal article

Crustal evolution, intra-cratonic architecture and the metallogeny of an Archaean craton

DR Mole, ML Fiorentini, KF Cassidy, CL Kirkland, N Thebaud, TC McCuaig, MP Doublier, P Duuring, SS Romano, R Maas, EA Belousova, SJ Barnes, J Miller, GRT Jenkin (ed.), PAJ Lusty (ed.), I McDonald (ed.), MP Smith (ed.), AJ Boyce (ed.), JJ Wilkinson (ed.)

ORE DEPOSITS IN AN EVOLVING EARTH | GEOLOGICAL SOC PUBLISHING HOUSE | Published : 2015

Abstract

The generation of the Earth's continental crust modified the composition of the mantle and provided a stable, buoyant reservoir capable of capturing mantle material and ultimately preserving ore deposits. Within the continental crust, lithospheric architecture and associated cratonic margins are a first-order control on camp-scale mineralization. Here we show that the evolving crustal architecture of the Archaean Yilgarn Craton, Western Australia, played a key role in controlling the localization of camp-scale gold, iron and nickel mineralized systems. The age and source characteristics of Archaean lithosphere are heterogeneous in both space and time and are recorded by the varying Nd isotop..

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University of Melbourne Researchers