1984
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The Proterozoic Warramunga Group, as previously mapped around Tennant Creek, is shown to consist of two sequences separated by a major angular unconformity. The older sequence, which is tightly folded and cleaved, hosts the gold-copper-ironstone lodes near Tennant Creek. The younger sequence, exposed north of Tennant Creek, is correlated with the lower Hatches Creek Group south of Tennant Creek. It is overlain conformably by the Tomkinson Creek beds, which are correlated with the middle and upper Hatches Creek Group. The Rising Sun Conglomerate, southeast of Tennant Creek, is a composite unit, consisting of Hatches Creek Group equivalents and unconformably overlying Cambrian rocks.
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22-1/H52-7/11 Vertical scale: 15
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22-1/E55-14/11 Vertical scale: 10
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22-1/E55-14/4 Vertical scale: 750
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45% coverage west 22-1/E55-15/12 Vertical scale: 20
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33% coverage west 22-1/H52-8/15 Vertical scale: 200
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Not available
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22-1/H52-4/6 Vertical scale: 300
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22-1/E55-14/7 Vertical scale: 200
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33% coverage west 22-1/H52-8/10 Vertical scale: 10