Eldee Creek Station is about an hour and a bit northwest of Broken Hill. Each year in winter, Monash University takes it's 3rd year field geology class up there for a two-three week mapping course. I've participated once and have taught it twice. Ever time I go, I make a new map of the structure, and each time it's different. The images above and below were taken from Robert Weinburg's Eldee Project page on the Monash University website.
The
core of the Eldee structure is pegmatite which is enclosed by pelitic
gneiss, meta-sediments and felsic gneiss with the occasional amphibolite
pod to make things interesting. There are beautiful folds, some nice clear faults and goats a plenty in this field area. I quite enjoy quietly tramping across the hills listening to the skitter of pelite shingles as they skid away from me.
Yellow - Amphibolite, , Green - Biotite Gneiss, Blue - Muscovite Schist, Pink - Felsic Gneiss, Red - Pegmatite.
This is a map from 2010 I made of the northern part of the structure while supervising small groups of students. As a result I take no structural measurements and often walk the same patch three or four times while having to skip other areas. The area is a lot more complicated than shown here and later maps that I've made show complicated F2 folds in the eastern half instead of those large pegmatite blobs. As you can see, the pegmatite gives the main radiometric response.
The rocks we map (felsic gneiss). 
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