
%0 Journal Article
%A Williams, Peter K. 
%T GOLD: Relationship between magnetic anomalism and epigenetic gold mineralisation in the Victory-Defiance area, Western Australia
%J ASEG Extended Abstracts
%D 1994/06/01
%V 1994
%N 1
%P 283-296
%K 
%R https://doi.org/10.1071/ASEGSPEC07_20
%U https://www.publish.csiro.au/paper/ASEGSPEC07_20 
%X The relationship between gold mineralisation, genetically related mineral assemblages, magnetic susceptibility and features observable in ground and airborne magnetic surveying is established at three gold mines in the Victory-Defiance gold camp at Kambalda, Western Australia. The gold mines are Orion, North Orchin and Revenge. There are significant magnetite-stable alteration haloes enveloping the gold lodes comprising these deposits. The magnetite-stable alteration is peripheral to gold lodes in differentiated dolerites, metabasalts and metasedimentary rocks which have undergone lower to mid-greenschist facies metamorphism. The magnetite alteration is partly coincident with the well-documented chlorite and biotite alteration zones. The magnetic susceptibilities of the magnetite-stable alteration assemblages range to 100 ´ 10-3 SI units. It is noted that the magnetic properties of the Kapai Slate vary considerably on a regional scale but appear to be consistently high (up to 400 ´ 10-3 SI units) within the Victory-Defiance gold camp. Magnetic maxima are coincident with all three gold deposits. The amplitude of the maxima observed in low-level aeromagnetic surveys are 30, 300 and 400 nT for Orion, North Orchin and Revenge, respectively. 
